TransUnion (TRU) 10-K 27 Feb 14 2013 FY Annual report Financial data

Document_and_Entity_Informatio

Document and Entity Information (USD $)	12 Months Ended
	Dec. 31, 2013	Jan. 31, 2014	Jun. 30, 2013
Document type	'10-K	'	'
Amendment flag	'false	'	'
Document period end date	31-Dec-13	'	'
Document fiscal year focus	'2013	'	'
Document fiscal period focus	'FY	'	'
Entity registrant name	'TransUnion Holding Company, Inc.	'	'
Entity central index key	'0001552033	'	'
Current fiscal year end date	'--12-31	'	'
Entity filer category	'Non-accelerated Filer	'	'
Entity well-known seasoned issuer	'No	'	'
Entity voluntary filers	'No	'	'
Entity current reporting status	'Yes	'	'
Entity common stock, shares outstanding	'	110,248,241	'
Entity public float	'	'	$0
Successor [Member] | Transunion Corp [Member]	'	'	'
Document type	'10-K	'	'
Amendment flag	'false	'	'
Document period end date	31-Dec-13	'	'
Document fiscal year focus	'2013	'	'
Document fiscal period focus	'FY	'	'
Entity registrant name	'TRANSUNION CORP.	'	'
Entity central index key	'0001513514	'	'
Current fiscal year end date	'--12-31	'	'
Entity filer category	'Non-accelerated Filer	'	'
Entity well-known seasoned issuer	'No	'	'
Entity voluntary filers	'No	'	'
Entity current reporting status	'Yes	'	'
Entity common stock, shares outstanding	'	100	'
Entity public float	'	'	$0

Consolidated_Balance_Sheets

Consolidated Balance Sheets (Transunion Corp [Member] Successor [Member], USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Current assets:	'	'
Cash and cash equivalents	$111.20	$154.30
Trade accounts receivable, net of allowance of $0.7 and $1.7	165	163.6
Other current assets	81	58.7
Total current assets	357.2	376.6
Property, plant and equipment, net of accumulated depreciation of $70.2 and $26.4	150.4	121.2
Marketable securities	9.9	11.4
Goodwill	1,909.70	1,804.20
Other intangibles, net of accumulated amortization of $227.5 and $86.6	1,934	1,911.60
Other assets	110.6	95.7
Total assets	4,471.80	4,320.70
Current liabilities:	'	'
Trade accounts payable	100.2	77.5
Current portion of long-term debt	13.8	10.6
Other current liabilities	167.7	107
Total current liabilities	281.7	195.1
Long-term debt	1,854.80	1,672.30
Deferred taxes	624	645.8
Other liabilities	22.5	21.6
Total liabilities	2,783	2,534.80
Redeemable noncontrolling interests	17.6	14.7
Stockholders' equity:	'	'
Common stock, $0.01 par value; one thousand shares authorized, one hundred and 29.8 million shares issued at December 31, 2012, and December 31, 2011, respectively; one hundred and 29.8 million shares outstanding as of December 31, 2012, and December 31, 2011, respectively	0	0
Additional paid-in capital	1,693.70	1,687.20
Treasury stock at cost; 0 shares at December 31, 2012, and less than 0.1 million shares at December 31, 2011	0	0
Retained earnings (accumulated deficit)	-35.9	15.1
Accumulated other comprehensive income (loss)	-73.2	-24.4
Total Stockholders’ Equity Attributable to Parent	1,584.60	1,677.90
Noncontrolling interests	86.6	93.3
Total stockholders’ equity	1,671.20	1,771.20
Total liabilities and stockholders’ equity	$4,471.80	$4,320.70

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Trade accounts receivable, allowance	$700,000	$1,700,000
Property, plant and equipment, accumulated depreciation and amortization	70,200,000	26,400,000
Other intangibles accumulated amortization of	227,500,000	86,600,000
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	110,700,000	110,200,000
Common stock, shares outstanding	110,100,000	110,100,000
Treasury stock at cost, shares	500,000	100,000
Transunion Corp [Member] | TransUnion Corp-Successor	'	'
Trade accounts receivable, allowance	700,000	1,700,000
Property, plant and equipment, accumulated depreciation and amortization	70,200,000	26,400,000
Other intangibles accumulated amortization of	$227,500,000	$86,600,000
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	1,000	1,000
Common stock, shares issued	100	100
Common stock, shares outstanding	100	100
Treasury stock at cost, shares	0	0

Consolidated_Statements_of_Inc

Consolidated Statements of Income (USD $)

3 Months Ended

10 Months Ended

12 Months Ended

2 Months Ended

3 Months Ended

8 Months Ended

12 Months Ended

1 Months Ended

3 Months Ended

4 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Jun. 30, 2012

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Mar. 31, 2012

Apr. 30, 2012

Dec. 31, 2011

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Successor [Member]

Successor [Member]

Successor [Member]

Successor [Member]

Successor [Member]

Successor [Member]

Successor [Member]

Successor [Member]

Successor [Member]

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

Revenue

'

'

'

'

'

'

'

'

$767

$1,183.20

'

'

'

'

'

'

'

$767

$1,183.20

'

'

$373

$1,024

Operating expenses

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cost of services (exclusive of depreciation and amortization below)

'

'

'

'

'

'

'

'

298.2

472.4

'

'

'

'

'

'

'

298.2

472.4

'

'

172

421.5

Selling, general and administrative

'

'

'

'

'

'

'

'

212.6

354.8

'

'

'

'

'

'

'

211.7

353.5

'

'

172

264.5

Depreciation and amortization

'

'

'

'

'

'

'

'

115

186.8

'

'

'

'

'

'

'

115

186.8

'

'

29.2

85.3

Total operating expenses

'

'

'

'

'

'

'

'

625.8

1,014

'

'

'

'

'

'

'

624.9

1,012.70

'

'

373.2

771.3

Operating income

36.3

49.3

39.5

44.2

43.4

61.3

36.5

[1]

'

141.2

169.2

37

[2]

36.5

49.7

39.8

44.5

43.6

61.6

142.1

170.5

-65.8

[2]

65.6

[2]

-0.2

252.7

Non-operating income and expense

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Interest expense

'

'

'

'

'

'

'

'

-125

-197.6

'

'

'

'

'

'

'

-72.8

-101.4

'

'

-40.5

-126.4

Interest income

'

'

'

'

'

'

'

'

0.8

1.7

'

'

'

'

'

'

'

0.8

1.7

'

'

0.6

0.7

Earnings from equity method investments

'

'

'

'

'

'

'

'

8

13.7

'

'

'

'

'

'

'

8

13.7

'

'

4.1

11.4

Other income and (expense), net

'

'

'

'

'

'

'

'

-22.3

-12.9

'

'

'

'

'

'

'

-5.9

-12.6

'

'

-27.9

-71.3

Total non-operating income and expense

'

'

'

'

'

'

'

'

-138.5

-195.1

'

'

'

'

'

'

'

-69.9

-98.6

'

'

-63.7

-185.6

Income (loss) before income taxes

'

'

'

'

'

'

'

'

2.7

-25.9

'

'

'

'

'

'

'

72.2

71.9

'

'

-63.9

67.1

Provision for income taxes

'

'

'

'

'

'

'

'

-6.6

-2.3

'

'

'

'

'

'

'

-24.3

-21.8

'

'

11.5

-17.8

Income (loss) from continuing operations

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

47.9

50.1

'

'

-52.4

49.3

Discontinued operations, net of tax

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

'

'

0

-0.5

Net loss

-15.7

-1.4

-6.1

-5

-6.7

13.5

-2.3

[1]

-8.5

[1],[3]

-3.9

-28.2

10.8

[2]

7.2

19.5

11.9

11.5

14.1

23

47.9

50.1

-64.5

[2]

12.1

[2]

-52.4

48.8

Less: net income attributable to noncontrolling interests

'

'

'

'

'

'

'

'

-4.9

-6.9

'

'

'

'

'

'

'

-4.9

-6.9

'

'

-2.5

-8

Net loss attributable to TransUnion Holding Company, Inc.

($17.60)

($3.40)

($7.80)

($6.30)

($8.20)

$11.30

($3.50)

[1]

($8.50)

[1],[3]

($8.80)

($35.10)

$9.60

[2]

$5.30

$17.50

$10.20

$10.20

$12.60

$20.80

$43

$43.20

($65.10)

[2]

$10.20

[2]

($54.90)

$40.80

[1]

The financial results of TransUnion Holding include the consolidated results of TransUnion Corp subsequent to April 30, 2012, the date of acquisition. See Note 1, “Significant Accounting and Reporting Policies,” and Note 2, “Change in Control Transaction,” for further information. For the period of inception through March 31, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $7.0 million of acquisition fees related to the 2012 Change in Control Transaction. For the three months ended June 30, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $8.2 million of acquisition fees related to the 2012 Change in Control Transaction.

[2]

For the three months ended March 31, 2012, net income (loss) and net income (loss) attributable to TransUnion Corp included $2.6 million of acquisition fees related to the 2012 Change in Control Transaction. For the one month ended April 30, 2012, net income (loss) and net income (loss) attributable to TransUnion Corp included $18.3 million of acquisition fees related to the 2012 Change in Control Transaction. For the one month ended April 30, 2012, operating income (loss), net income (loss) and net income (loss) attributable to TransUnion Corp all included $90.0 million of accelerated stock-based compensation and related expense as a result of the 2012 Change in Control Transaction. For the two months ended June 30, 2012, operating income (loss), net income (loss) and net income (loss) attributable to TransUnion Corp all included $0.3 million of accelerated stock-based compensation and related expense as a result of the 2012 Change in Control Transaction.

[3]

Period is from inception of TransUnion Holding, February 15, 2012, through March 31, 2012.

Consolidated_Statements_of_Com

Consolidated Statements of Comprehensive Income (Transunion Corp [Member], USD $)	8 Months Ended	12 Months Ended	4 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2013	Apr. 30, 2012	Dec. 31, 2011
	TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Predecessor	TransUnion Corp-Predecessor
Net loss	$47.90	$50.10	($52.40)	$48.80
Other comprehensive income (loss), net of tax	'	'	'	'
Foreign currency translation adjustment	-22.7	-56.4	2.5	-14.5
Net unrealized loss on hedges	-3.7	3	0	0
Total other comprehensive loss, net of tax	-26.4	-53.4	2.5	-14.5
Comprehensive loss	21.5	-3.3	-49.9	34.3
Less: comprehensive income attributable to noncontrolling interests	-2.9	-2.3	-2.8	-6.4
Comprehensive loss attributable to TransUnion Holding Company, Inc.	$18.60	($5.60)	($52.70)	$27.90

Consolidated_Statements_of_Cas

Consolidated Statements of Cash Flows (USD $)	10 Months Ended	12 Months Ended	4 Months Ended	12 Months Ended	8 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2013	Apr. 30, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2013
			TransUnion Corp-Predecessor	TransUnion Corp-Predecessor	Successor [Member]	Successor [Member]
			Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]
Cash flows from operating activities:	'	'	'	'	'	'
Net income	($3.90)	($28.20)	($52.40)	$48.80	$47.90	$50.10
Less: income (loss) from discontinued operations, net of tax	'	'	0	-0.5	0	0
Income (loss) from continuing operations	'	'	-52.4	49.3	47.9	50.1
Adjustments to reconcile income from continuing operations to net cash provided by operating activities:	'	'	'	'	'	'
Depreciation and amortization	115	186.8	29.2	85.3	115	186.8
Equity in net income of affiliates, net of dividends	1.3	-3.6	-3.7	-3.4	1.3	-3.6
Deferred taxes	-5.1	-16.2	-18.3	-3.5	11.8	-12.1
Amortization of senior notes purchase accounting fair value adjustment and note discount	-10.8	-17.1	0	0	-10.8	-17.4
(Gains) / losses on sale or exchange of assets	0	-1	0.1	-0.3	0	-1
Loss on early extinguishment of debt	'	'	0	59.3	0	0
Deferred financing fees	2.1	8.2	3.9	4.2	0	2.5
Stock-based compensation	2.7	6.3	2	4.6	2.3	6.2
Provision (reduction) for losses on trade accounts receivable	-1.9	0.8	3.1	1.9	-1.9	0.8
Change in control transaction fees	'	'	20.9	0	0.4	0
Other	2.6	-0.9	-0.7	2.8	2.6	-0.9
Changes in assets and liabilities:	'	'	'	'	'	'
Trade accounts receivable	-1	-3.1	-24.7	-11.6	-1	-3.1
Other current and long-term assets	-78.8	-8.6	1.5	-3.3	2.8	-4.1
Trade accounts payable	-0.8	5.9	1.6	14.9	-1.2	6.1
Other current and long-term liabilities	25.6	14.1	89.9	4.3	-77.5	28.8
Cash provided by operating activities of continuing operations	'	'	52.4	204.5	91.7	239.1
Cash used in operating activities of discontinued operations	'	'	0	-1.3	0	0
Net cash provided by (Used in) operating activities	47	143.4	52.4	203.2	91.7	239.1
Cash flows from investing activities:	'	'	'	'	'	'
Capital expenditures for property and equipment	-48.8	-81.7	-20.4	-74	-48.8	-81.7
Investments in trading securities	-0.5	-1.8	-1.1	-1.2	-0.5	-1.8
Proceeds from sale of trading securities	0	4.4	1.1	9.9	0	4.4
Proceeds from sale and redemption of investments in available-for-sale securities	'	'	0	0.2	0	0
Investments in held-to-maturity securities	'	'	0	-6.3	0	0
Proceeds from held-to-maturity securities	'	'	0	6.3	0	0
Proceeds from sale of other assets	0	4.3	0	0	0	4.3
Other acquisitions and purchases of noncontrolling interests, net of cash acquired	-14.2	-282.3	-0.1	-105.2	-14.2	-282.3
Acquisition related deposits	3.7	-10	0	-8.6	3.7	-10
Other	-1.4	0.1	0.9	-2.7	-1.4	0.1
Acquisition of noncontrolling interests in TransUnion Corp. subsidiaries	-1,485.90	0	'	'	'	'
Cash (used in) provided by investing activities	-1,547.10	-367	-19.6	-181.6	-61.2	-367
Cash flows from financing activities:	'	'	'	'	'	'
Proceeds from senior secured term loan	0	1,133.40	0	950	0	1,133.40
Extinguishment of senior secured term loan	0	-923.4	0	-945.2	0	-923.4
Proceeds from revolving line of credit	0	65	0	0	0	65
Payment on revolving line of credit	0	-65	0	0	0	-65
Prepayment fee on early extinguishment of senior secured term loan	'	'	0	-9.5	0	0
Repayments of debt	-17.2	-11.9	-14.6	-11.7	-17.2	-11.9
Debt financing fees	-41.3	-5.2	-6.1	-11.3	0	-4.3
Proceeds from issuance of common stock	1,097.30	5.8	'	'	'	'
Treasury stock purchases	-0.7	-3.4	-1.3	-0.2	0	0
Distribution of merger consideration	'	'	-1.3	-4.3	0	0
Change in control transaction fees	'	'	-20.9	0	-0.4	0
Dividends to TransUnion Holding	-373.8	0	0	0	-27.9	-94.2
Distributions to noncontrolling interests	-7.2	-8	-0.4	-8.5	-7.2	-8
Stockholder contributions	'	'	0	0.3	80.8	0
Other	'	'	-0.4	-0.8	0	0
Cash provided by (used in) financing activities	1,655.10	187.3	-45	-41.2	28.1	91.6
Effect of exchange rate changes on cash and cash equivalents	-0.7	-6.8	0.8	-3.8	-0.7	-6.8
Net change in cash and cash equivalents	154.3	-43.1	-11.4	-23.4	57.9	-43.1
Cash and cash equivalents	0	154.3	107.8	131.2	96.4	154.3
Cash and cash equivalents	154.3	111.2	96.4	107.8	154.3	111.2
Noncash investing activities & Noncash financing activities:	'	'	'	'	'	'
Note payable for acquisition of noncontrolling interests	'	'	0	1.8	0	0
Property and equipment acquired through capital lease obligations	0	2	0	0.3	0	2
Exchange of TransUnion Holding Company, Inc. common stock for ownership interest in TransUnion Corp.	10.4	0	'	'	'	'
Cash paid during the year for:	'	'	'	'	'	'
Interest	140.4	211.8	12.7	122.8	112.5	117.6
Income taxes, net of refunds	$14.90	$23.30	$5.60	$10.10	$14.90	$23.30

Consolidated_Statements_of_Sto

Consolidated Statements of Stockholders' Equity (USD $)

Total

TransUnion Corp-Successor

TransUnion Corp-Predecessor

Common Stock

Common Stock

Common Stock

Paid-In Capital

Paid-In Capital

Paid-In Capital

Treasury Stock

Treasury Stock

Treasury Stock

Retained Earnings (Accumulated Deficit)

Retained Earnings (Accumulated Deficit)

Retained Earnings (Accumulated Deficit)

Accumulated Other Comp Income (Loss)

Accumulated Other Comp Income (Loss)

Accumulated Other Comp Income (Loss)

Non-controlling Interests

Non-controlling Interests

Non-controlling Interests

Stockholders' Equity, Total [Member]

Stockholders' Equity, Total [Member]

Stockholders' Equity, Total [Member]

Redeemable Non-controlling Interests (Temporary Equity)

Redeemable Non-controlling Interests (Temporary Equity)

Redeemable Non-controlling Interests (Temporary Equity)

In Millions, except Share data, unless otherwise specified

Transunion Corp [Member]

Transunion Corp [Member]

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Balance at Dec. 31, 2010

'

'

'

'

'

$0.30

'

'

$893.50

'

'

$0

'

'

($1,780.60)

'

'

$9.30

'

'

$15.50

'

'

($862)

'

'

$0

Balance, shares at Dec. 31, 2010

'

'

'

'

'

29,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Consolidated Statement of Stockholders' Equity

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net income

'

'

48.8

'

'

'

'

'

'

'

'

'

'

'

40.8

'

'

'

'

'

8

'

'

48.8

'

'

'

Other comprehensive income (loss)

'

'

-14.5

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-12.9

'

'

-1.6

'

'

-14.5

'

'

'

Stock-based compensation

'

'

'

'

'

'

'

'

4.6

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4.6

'

'

'

Issuance of stock

'

'

'

'

'

'

'

'

1.3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.3

'

'

'

Purchase of noncontrolling interests

'

'

'

'

'

'

'

'

-5.6

'

'

'

'

'

'

'

'

'

'

'

-0.3

'

'

-5.9

'

'

'

Exercise of stock options

'

'

'

'

'

'

'

'

0.1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.1

'

'

'

Acquisition of subsidiary

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-10.8

'

'

-10.8

'

'

'

Payments of ordinary dividends, noncontrolling interest

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-8.5

'

'

-8.5

'

'

'

Treasury stock purchased

'

'

'

'

'

'

'

'

'

'

'

-0.2

'

'

'

'

'

'

'

'

'

'

'

-0.2

'

'

'

Stockholder contribution

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.3

'

'

0.3

'

'

'

Effects of merger transaction

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.8

'

'

'

'

'

'

'

'

0.8

'

'

'

Balance at Dec. 31, 2011

'

'

'

'

'

0.3

'

'

893.9

'

'

-0.2

'

'

-1,739

'

'

-3.6

'

'

24.2

'

'

-824.4

'

'

'

Balance, shares at Dec. 31, 2011

'

'

'

'

'

29,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Consolidated Statement of Stockholders' Equity

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net income

'

'

-52.4

'

'

'

'

'

'

'

'

'

'

'

-54.9

'

'

'

'

'

2.5

'

'

-52.4

'

'

'

Other comprehensive income (loss)

'

'

2.5

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2.2

'

'

0.3

'

'

2.5

'

'

'

Stock-based compensation

'

'

'

'

'

'

'

'

2

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2

'

'

'

Exercise of stock options

'

'

'

'

'

'

'

'

0.1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.1

'

'

'

Impact of share-based awards modification

'

'

'

'

'

'

'

'

-3.3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-3.3

'

'

'

Payments of ordinary dividends, noncontrolling interest

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-0.4

'

'

-0.4

'

'

'

Treasury stock purchased

'

'

'

'

'

'

'

'

'

'

'

-1.3

'

'

'

'

'

'

'

'

'

'

'

-1.3

'

'

'

Effects of merger transaction

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-0.4

'

'

'

'

'

'

'

'

-0.4

'

'

'

Balance at Apr. 30, 2012

'

'

'

'

'

0.3

'

'

892.7

'

'

-1.5

'

'

-1,794.30

'

'

-1.4

'

'

26.6

'

'

-877.6

'

'

'

Balance, shares at Apr. 30, 2012

'

'

'

'

'

29,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Balance at Feb. 15, 2012

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Balance, shares at Feb. 15, 2012

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Consolidated Statement of Stockholders' Equity

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net income

-3.9

'

'

'

'

'

'

'

'

'

'

'

-8.8

'

'

'

'

'

4.9

'

'

-3.9

'

'

'

'

'

Other comprehensive income (loss)

-26.4

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-24.4

'

'

-2

'

'

-26.4

'

'

'

'

'

Acquisition of noncontrolling interests in TransUnion Corp. subsidiaries

1,485.90

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

26.6

'

'

26.6

'

'

'

'

'

Purchase accounting adjustments related to acquisition of TransUnion Corp.

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

87

'

'

87

'

'

-0.3

'

'

Stock-based compensation

'

'

'

'

'

'

2.7

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2.7

'

'

'

'

'

Issuance of Stock Shares

'

'

'

110,200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Issuance of stock

'

'

'

1.1

'

'

1,106.60

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,107.70

'

'

'

'

'

Purchase of noncontrolling interests

'

'

'

'

'

'

0.1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.1

'

'

-3.3

'

'

Reclassification of redeemable non-controlling interests

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-17.9

'

'

-17.9

'

'

17.9

'

'

Acquisition of subsidiary

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.9

'

'

1.9

'

'

'

'

'

Additional acquisition price for Brazil subsidiary

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.4

'

'

Payments of ordinary dividends, noncontrolling interest

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-7.2

'

'

-7.2

'

'

'

'

'

Dividends

'

'

'

'

'

'

'

'

'

'

'

'

-373.8

'

'

'

'

'

'

'

'

-373.8

'

'

'

'

'

Treasury stock purchased

'

'

'

'

'

'

'

'

'

-0.7

'

'

'

'

'

'

'

'

'

'

'

-0.7

'

'

'

'

'

Treasury stock purchased, shares

'

'

'

100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Balance at Dec. 31, 2012

796.1

'

'

1.1

'

'

1,109.40

'

'

-0.7

'

'

-382.6

'

'

-24.4

'

'

93.3

'

'

796.1

'

'

14.7

'

'

Balance, shares at Dec. 31, 2012

'

'

'

110,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Balance at Apr. 30, 2012

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Consolidated Statement of Stockholders' Equity

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Purchase accounting adjustments in shares

'

'

'

'

-29,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net income

'

47.9

'

'

'

'

'

'

'

'

'

'

'

43

'

'

'

'

'

4.9

'

'

47.9

'

'

'

'

Other comprehensive income (loss)

'

-26.4

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-24.4

'

'

-2

'

'

-26.4

'

'

'

'

Purchase accounting adjustments related to acquisition of TransUnion Corp.

'

'

'

'

-0.3

'

'

711.3

'

'

1.5

'

'

1,794.30

'

'

1.4

'

'

87

'

'

2,595.20

'

'

-0.3

'

Stock-based compensation

'

'

'

'

'

'

'

2.3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2.3

'

'

'

'

Purchase of noncontrolling interests

'

'

'

'

'

'

'

0.1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.1

'

'

-3.3

'

Reclassification of redeemable non-controlling interests

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

17.9

'

'

17.9

'

'

-17.9

'

Acquisition of subsidiary

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-1.9

'

'

-1.9

'

'

'

'

Additional acquisition price for Brazil subsidiary

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.4

'

Dividends

'

'

'

'

'

'

'

'

'

'

'

'

'

-27.9

'

'

'

'

'

'

'

'

-27.9

'

'

'

'

Stockholder contribution

'

'

'

'

'

'

'

80.8

'

'

'

'

'

'

'

'

'

'

'

'

'

'

80.8

'

'

'

'

Distributions to noncontrolling interests

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-7.2

'

'

-7.2

'

'

'

'

Balance at Dec. 31, 2012

'

1,771.20

'

'

'

'

'

1,687.20

'

'

'

'

'

15.1

'

'

-24.4

'

'

93.3

'

'

1,771.20

'

'

14.7

'

Balance, shares at Dec. 31, 2012

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Balance at Sep. 30, 2012

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Consolidated Statement of Stockholders' Equity

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net income

-6.7

14.1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Balance at Dec. 31, 2012

796.1

1,771.20

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Consolidated Statement of Stockholders' Equity

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net income

-5

11.5

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Balance at Mar. 31, 2013

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Balance at Dec. 31, 2012

796.1

1,771.20

'

1.1

'

'

1,109.40

1,687.20

'

-0.7

'

'

-382.6

15.1

'

-24.4

-24.4

'

93.3

93.3

'

796.1

1,771.20

'

14.7

14.7

'

Balance, shares at Dec. 31, 2012

'

'

'

110,100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Consolidated Statement of Stockholders' Equity

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Net income

-28.2

50.1

'

'

'

'

'

'

'

'

'

'

-35.1

43.2

'

'

'

'

6.8

6.8

'

-28.3

50

'

0.1

0.1

'

Other comprehensive income (loss)

-53.4

-53.4

'

'

'

'

'

'

'

'

'

'

'

'

'

-48.8

-48.8

'

-1.9

-1.9

'

-50.7

-50.7

'

-2.7

-2.7

'

Acquisition of noncontrolling interests in TransUnion Corp. subsidiaries

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock-based compensation

'

'

'

'

'

'

6.3

6.2

'

'

'

'

'

'

'

'

'

'

'

'

'

6.3

6.2

'

'

'

'

Issuance of stock

'

'

'

'

'

'

5.2

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5.2

'

'

'

'

'

Stock issued during period, shares, restricted stock award, forfeited

100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Issuance of stock, Shares

400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Purchase of noncontrolling interests

'

'

'

'

'

'

0.3

0.3

'

'

'

'

'

'

'

'

'

'

'

'

'

0.3

0.3

'

-1.9

-1.9

'

Exercise of stock options

'

'

'

'

'

'

0.6

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.6

'

'

'

'

'

Stock repurchased during period, shares

-400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Acquisition of subsidiary

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

7.6

-7.6

'

Dividends

'

'

'

'

'

'

'

'

'

'

'

'

'

-94.2

'

'

'

'

'

'

'

'

-94.2

'

'

'

'

Distributions to noncontrolling interests

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-7.8

-7.8

'

-7.8

-7.8

'

-0.2

-0.2

'

Treasury stock purchased

'

'

'

'

'

'

'

'

'

-3.4

'

'

'

'

'

'

'

'

'

'

'

-3.4

'

'

'

'

'

Purchase accounting adjustments related to acquisition of TransUnion Corp. subsidiaries

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-3.3

-3.3

'

-3.3

-3.3

'

'

'

'

Disposal of noncontrolling interests

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

-0.6

-0.6

'

-0.6

-0.6

'

'

'

'

Stockholder contribution

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.1

0.1

'

0.1

0.1

'

'

'

'

Balance at Dec. 31, 2013

714.5

1,671.20

'

1.1

'

'

1,121.80

1,693.70

'

-4.1

'

'

-417.7

-35.9

'

-73.2

-73.2

'

86.6

86.6

'

714.5

1,671.20

'

17.6

17.6

'

Balance, shares at Dec. 31, 2013

'

'

'

110,200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Balance at Sep. 30, 2013

'

'

'

'

'

'

'

'

'

'

'

'

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Consolidated Statement of Stockholders' Equity

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Net income

-15.7

7.2

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Balance at Dec. 31, 2013

$714.50

$1,671.20

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Significant_Accounting_and_Rep

Significant Accounting and Reporting Policies	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Significant accounting and reporting policies	'
	Significant Accounting and Reporting Policies
	Description of Business
	TransUnion develops, maintains and enhances a number of secured proprietary information databases to support its operations. These databases contain payment history, accounts receivable information, and other information such as bankruptcies, liens and judgments for consumers and businesses. We maintain reference databases of current consumer names, addresses and telephone numbers which are used for identity verification and fraud management solutions. We obtain this information from a variety of sources, including credit-granting institutions and public records. We build and maintain these databases using our proprietary information management systems, and make the data available to our customers through a variety of services. These services are offered to customers in a number of industries including financial services, insurance, collections and healthcare. We have operations in the United States, Africa, Canada and other international locations.
	Basis of Presentation
	This Annual Report on Form 10-K is a combined report being filed separately by TransUnion Holding Company, Inc. ("TransUnion Holding") and TransUnion Corp., ("TransUnion Corp") a direct 100% owned subsidiary of TransUnion Holding. Substantially all of TransUnion Holding’s operations are conducted by TransUnion Corp. All of the significant accounting and reporting policies pertain to both TransUnion Holding and TransUnion Corp.
	Unless the context indicates otherwise, any reference in this report to "TransUnion," the “Company,” “we,” “us,” and “our” refers to TransUnion Holding with its direct and indirect subsidiaries, including TransUnion Corp, or to TransUnion Corp and its subsidiaries for periods prior to the forming of TransUnion Holding. Each registrant included herein is filing on its own behalf all of the information contained in this annual report that pertains to such registrant. When appropriate, TransUnion Holding and TransUnion Corp are named explicitly for their specific related disclosures. Each registrant included herein is not filing any information that does not relate to such registrant, and therefore makes no representation as to any such information.
	Where the information provided is substantially the same for each company, such information has been combined in this Annual Report on Form 10-K. Where information is not substantially the same for each company, we have provided separate information. In addition, separate financial statements for each company are included above.
	2012 Change in Control Transaction
	TransUnion Holding was formed by affiliates of Advent International Corporation (“Advent”) and Goldman Sachs & Co. (“GSC”) on February 15, 2012 as a vehicle to acquire 100% of the outstanding common stock of TransUnion Corp. On April 30, 2012, pursuant to an Agreement and Plan of Merger, TransUnion Holding acquired TransUnion Corp. To partially fund the acquisition, TransUnion Holding issued $600.0 million aggregate principal amount of 9.625%/10.375% senior PIK toggle notes due 2018 (9.625% notes). We refer to these transactions collectively as the “2012 Change in Control Transaction.”
	The 2012 Change in Control Transaction was accounted for using the acquisition method of accounting in accordance with Accounting Standards Codification (“ASC”) 805, Business Combinations, with the basis of the assets acquired and liabilities assumed recorded at fair value to reflect the purchase price. Under the guidance provided by the Securities and Exchange Commission ("SEC") Staff Accounting Bulletin Topic 5J, “New Basis of Accounting Required in Certain Circumstances,” the fair value adjustments of the assets acquired and liabilities assumed have been pushed down and recorded on TransUnion Corp’s books.
	TransUnion Corp continues to operate as the same legal entity subsequent to the 2012 Change in Control Transaction. On TransUnion Corp’s financial statements, periods prior to May 1, 2012, reflect the financial position, results of operations, and changes in financial position of TransUnion Corp prior to the 2012 Change in Control Transaction (referred to herein as the “Predecessor”) and periods after April 30, 2012, reflect the financial position, results of operations, and changes in financial position of TransUnion Corp after the 2012 Change in Control Transaction (referred to herein as the “Successor”). Periods after the 2012 Change in Control Transaction are not comparable to prior periods due primarily to additional amortization of intangibles resulting from the fair value adjustments of the assets acquired and liabilities assumed.
	The accompanying consolidated financial statements of TransUnion Holding Company and Subsidiaries and of TransUnion Corp and Subsidiaries have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). Our consolidated financial statements reflect all adjustments which, in the opinion of management, are necessary for a fair presentation of the periods presented. All significant intercompany transactions and balances have been eliminated.
	Subsequent Events
	Events and transactions occurring through the date of issuance of the financial statements included in this annual report on Form 10-K have been evaluated by management, and when appropriate, recognized or disclosed in the financial statements.
	Principles of Consolidation
	The consolidated financial statements of TransUnion Holding include the accounts of TransUnion Holding and its 100% owned subsidiary, TransUnion Corp. The consolidated financial statements of TransUnion Corp include the accounts of TransUnion Corp and all of its majority-owned or controlled subsidiaries. Investments in unconsolidated entities in which the Company has at least a 20% ownership interest, or where it is able to exercise significant influence, are accounted for using the equity method. Nonmarketable investments in unconsolidated entities in which the Company has less than a 20% ownership interest, or where it is not able to exercise significant influence, are accounted for using the cost method and periodically reviewed for impairment.
	Use of Estimates
	The preparation of consolidated financial statements and related disclosures in accordance with GAAP requires management to make estimates and judgments that affect the amounts reported. We believe that the estimates used in preparation of the accompanying consolidated financial statements are reasonable, based upon information available to management at this time. These estimates and judgments affect the reported amounts of assets, liabilities and disclosure of contingent assets and liabilities at the balance sheet date, as well as the amounts of revenue and expense during the reporting period. Estimates are inherently uncertain and actual results could differ materially from the estimated amounts.
	Reclassifications
	We have broken out prior years' deferred tax liabilities on our balance sheets and earnings from equity method investments on our statements of income to conform to the current year's presentation.
	Segments
	We manage our business and report our financial results in three operating segments: U.S. Information Services (“USIS”); International; and Interactive. We also report expenses for Corporate, which provides support services to each operating segment. Details of our segment results are discussed in Note 16, “Operating Segments.”
	Revenue Recognition and Deferred Revenue
	Revenue is recognized when persuasive evidence of an arrangement exists, delivery has occurred or services have been rendered, the pricing is fixed or determinable and the collectability is reasonably assured. For multiple element arrangements, we separate deliverables into units of accounting and recognize revenue for each unit of accounting based on evidence of each unit’s relative selling price to the total arrangement consideration, assuming all other revenue recognition criteria have been met.
	A significant portion of our revenue is derived from providing information services to our customers. This revenue is recognized when services are provided, assuming all criteria for revenue recognition are met. A smaller portion of our revenue relates to subscription-based contracts where a customer pays a predetermined fee for a predetermined, or unlimited, number of transactions or services during the subscription period. Revenue related to subscription-based contracts having a preset number of transactions is recognized as the services are provided, using an effective transaction rate as the actual transactions are completed. Any remaining revenue related to unfulfilled units is not recognized until the end of the related contract’s subscription period. Revenue related to subscription-based contracts having an unlimited volume is recognized straight line over the contract term.
	Deferred revenue generally consists of amounts billed in excess of revenue recognized for the sale of data services, subscriptions and set up fees. Deferred revenue is included in other current liabilities.
	Costs of Services
	Costs of services include data acquisition and royalty fees, personnel costs related to our databases and software applications, consumer and call center support costs, hardware and software maintenance costs, telecommunication expenses, research and development costs and occupancy costs associated with the facilities where these functions are performed. Research and development costs of TransUnion Holding and TransUnion Corp Successor for the year ended December 31, 2013, was $4.9 million. Research and development costs of TransUnion Holding from the date of inception through December 31, 2012, and for TransUnion Corp Successor for the eight months ended December 31, 2012, was $7.6 million. Research and development costs for TransUnion Corp Predecessor for the four months ended April 30, 2012, and the year ended December 31, 2011, were $3.7 million and $7.8 million, respectively.
	Selling, General and Administrative Expenses
	Selling, general and administrative expenses include personnel-related costs for sales, administrative and management employees, costs for professional and consulting services, advertising and occupancy and facilities expense of these functions. Advertising costs are expensed as incurred. Advertising costs of TransUnion Holding and TransUnion Corp Successor for the year ended December 31, 2013, were $32.3 million. Advertising costs of TransUnion Holding from the date of inception through December 31, 2012, and for TransUnion Corp Successor for the eight months ended December 31, 2012, were $19.2 million. Advertising costs of TransUnion Corp Predecessor for the four months ended April 30, 2012, and the year ended December 31, 2011, were $15.5 million and $32.8 million, respectively.
	Stock-Based Compensation
	Compensation expense for all stock-based compensation awards is determined using the grant date fair value and includes an estimate for expected forfeitures. Expense is recognized on a straight-line basis over the requisite service period of the award, which is generally equal to the vesting period. The details of our stock-based compensation program are discussed in Note 14, “Stock-Based Compensation.”
	Income Taxes
	Deferred income tax assets and liabilities are determined based on the estimated future tax effects of temporary differences between the financial statement and tax basis of assets and liabilities, as measured by current enacted tax rates. The effect of a tax rate change on deferred tax assets and liabilities is recognized in operations in the period that includes the enactment date of the change. We periodically assess the recoverability of our deferred tax assets, and a valuation allowance is recorded against deferred tax assets if it is more likely than not that some portion of the deferred tax assets will not be realized. See Note 13, “Income Taxes,” for additional information.
	Foreign Currency Translation
	The functional currency for each of our foreign subsidiaries is generally that subsidiary’s local currency. We translate the assets and liabilities of foreign subsidiaries at the year-end exchange rate, and translate revenues and expenses at the monthly average rates during the year. We record the resulting translation adjustment as a component of other comprehensive income in stockholders’ equity.
	Transaction gains and losses that arise from exchange rate fluctuations on transactions denominated in a currency other than the functional currency are included in the results of operations as incurred. The exchange rate loss of TransUnion Holding and TransUnion Corp Successor for the year ended December 31, 2013, was $0.8 million. The exchange rate gain of TransUnion Holding from the date of inception through December 31, 2012, and for TransUnion Corp Successor for the eight months ended December 31, 2012, was the less than $0.1 million. The exchange rate gain of TransUnion Corp Predecessor for the four months ended April 30, 2012, was $0.2 million and the exchange rate loss of TransUnion Corp Predecessor for the year ended December 31, 2011, was $2.8 million.
	Cash and Cash Equivalents
	We consider investments in highly liquid debt instruments with original maturities of three months or less to be cash equivalents.
	Trade Accounts Receivable
	Trade accounts receivable are recorded at the invoiced amount and do not bear interest. The allowance for doubtful accounts is based on our historical write-off experience, analysis of the aging of outstanding receivables, customer payment patterns and the establishment of specific reserves for customers in adverse financial condition or for existing contractual disputes. Adjustments to the allowance are recorded as a bad debt expense in selling, general and administrative expenses. Trade receivables are written off against the allowance when they are determined to be no longer collectible. We reassess the adequacy of the allowance for doubtful accounts each reporting period.
	Long-Lived Assets
	Property, Plant, Equipment and Intangibles
	Property, plant and equipment was adjusted to fair value on the date of the 2012 Change in Control Transaction. All subsequent purchases of property, plant and equipment have been recorded at cost. Property, plant and equipment is depreciated primarily using the straight-line method over the estimated useful lives of the assets. Buildings and building improvements are generally depreciated over twenty years. Computer equipment and purchased software are depreciated over three to seven years. Leasehold improvements are depreciated over the shorter of the estimated useful life of the asset or the lease term. Other assets are depreciated over five to seven years. Intangibles, other than indefinite-lived intangibles, are amortized using the straight-line method over their economic life, generally three to forty years. Assets to be disposed of are separately presented in the consolidated balance sheet and reported at the lower of the carrying amount or fair value, less costs to sell, and are no longer depreciated. See Note 2, “Change in Control Transaction,” Note 5, “Property, Plant and Equipment,” and Note 7, “Purchased Intangible Assets,” for additional information about these assets.
	Internal Use Software
	We monitor the activities of each of our internal use software and system development projects and analyze the associated costs, making an appropriate distinction between costs to be expensed and costs to be capitalized. Costs incurred during the preliminary project stage are expensed as incurred. Many of the costs incurred during the application development stage are capitalized, including costs of software design and configuration, development of interfaces, coding, testing and installation of the software. Once the software is ready for its intended use, it is amortized on a straight-line basis over its useful life, generally three to seven years.
	Impairment of Long-Lived Assets
	We review long-lived assets that are subject to amortization for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to the estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated future cash flows, an impairment charge is recognized equal to the amount by which the carrying amount of the asset exceeds the fair value of the asset. During 2011, we recorded a $2.0 million impairment of software due to a regulatory change that requires a software platform change in our USIS segment. No significant impairment charges were recorded during 2013 or 2012.
	Marketable Securities
	We classify our investments in debt and equity securities in accordance with our intent and ability to hold the investments. Held-to-maturity securities are carried at amortized cost, which approximates fair value, and are classified as either short-term or long-term investments based on the contractual maturity date. Earnings from these securities are reported as a component of interest income. Available-for-sale securities are carried at fair market value, with the unrealized gains and losses, net of tax, included in accumulated other comprehensive income. Trading securities are carried at fair market value, with unrealized gains and losses included in income.
	At December 31, 2013 and 2012, all of the Company's Marketable Securities consisted of trading securities. These securities relate to a nonqualified deferred compensation plan held in trust for the benefit of plan participants. There were no significant realized or unrealized gains or losses for these securities for any of the periods presented. We follow the fair value guidance issued by the FASB to measure the fair value of our financial assets as further described in Note 15, "Fair Value."
	We periodically review our marketable securities to determine if there is an other-than-temporary impairment on any security. If it is determined that an other-than-temporary decline in value exists, we write down the investment to its market value and record the related impairment loss in other income. There were no other-than-temporary impairments of marketable securities in 2013 or 2012.
	Goodwill and Other Indefinite-Lived Intangibles
	Goodwill and other indefinite-lived intangible assets are allocated to various reporting units, which are an operating segment or one level below an operating segment. We test goodwill and indefinite-lived intangible assets for impairment on an annual basis, in the fourth quarter, or on an interim basis if an indicator of impairment is present. For goodwill, we compare the fair value of each reporting unit to its carrying amount to determine if there is potential goodwill impairment. If the fair value of a reporting unit is less than its carrying value, an impairment loss is recorded to the extent that the fair value of the goodwill within the reporting unit is less than the carrying value of its goodwill. For other indefinite-lived intangibles, we compare the fair value of the asset to its carrying value to determine if there is an impairment. If the fair value of the asset is less than its carrying value, an impairment loss is recorded. We use discounted cash flow techniques to determine the fair value of our reporting units and other indefinite-lived intangibles. See Note 6, “Goodwill,” and Note 7, “Purchased Intangible Assets,” for additional information about these assets.
	Benefit Plans
	We maintain a 401(k) defined contribution profit sharing plan for eligible employees. We provide a partial matching contribution and a discretionary contribution based on a fixed percentage of a participant’s eligible compensation.Contributions to this plan by TransUnion Holding and TransUnion Corp for the year ended December 31, 2013, were $12.4 million. Contributions to this plan by TransUnion Holding from the date of inception through December 31, 2012 and by TransUnion Corp Successor for the eight months ended December 31, 2012, were $6.9 million. Contributions to this plan by TransUnion Corp Predecessor for the four months ended April 30, 2012, and the year ended December 31, 2011, were $4.8 million and $10.1 million, respectively. We also maintain a nonqualified deferred compensation plan for certain key employees. The deferred compensation plan contains both employee deferred compensation and company contributions. These investments are held in the TransUnion Rabbi Trust, and are included in marketable securities on the balance sheet. The assets held in the Rabbi Trust are for the benefit of the participants in the deferred compensation plan, but are available to our general creditors in the case of our insolvency. The liability for amounts due to these participants is included in other current liabilities and other liabilities on the balance sheet.
	Recently Adopted Accounting Pronouncements
	In February 2013, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update No. 2013-2 (“ASU 2013-2”) Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. ASU 2013-2 does not change the current requirements for reporting net income or other comprehensive income, however it increases disclosure requirements for amounts that are reclassified out of accumulated other comprehensive income into net income. ASU 2013-2 is effective for annual and interim periods beginning after December 15, 2012. This guidance was adopted by the Company effective January 1, 2013, and did not have a significant impact on the Company’s consolidated financial statements.
	Recent Accounting Pronouncement Not Yet Adopted
	In July 2013, the FASB issued ASU No. 2013-11, Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exist ("ASU 2013-11"). ASU 2013-11 provides guidance on the presentation of unrecognized tax benefits to better reflect the manner in which an entity would settle at the reporting date any income taxes that would result from the disallowance of a tax position when net operating loss carryforwards, similar tax losses or tax credit carryforwards exist. The objective of ASU 2013-11 is to eliminate the diversity in practice of how companies present unrecognized tax benefits under these circumstances. ASU 2013-11 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. We do not expect the requirements of ASU 2013-11 to have a significant impact on the Company's consolidated financial statements.

Change_in_Control_Transactions

Change in Control Transactions	12 Months Ended
	Dec. 31, 2013
Business Combinations [Abstract]	'
Change in Control Transaction	'
	Change in Control Transaction
	2012 Change in Control Transaction
	On April 30, 2012, TransUnion Corp was acquired by affiliates of Advent and GSC (the “Sponsors”), for the aggregate purchase price of $1,592.7 million, plus the assumption of existing debt. As a result, TransUnion Corp became a wholly-owned subsidiary of TransUnion Holding. In connection with the acquisition, all existing stockholders of TransUnion Corp received cash consideration for their shares and all existing option holders received cash consideration based on the value of their options. To partially fund the acquisition, TransUnion Holding issued $600.0 million aggregate principal amount of the 9.625% notes. At the time of the transaction, TransUnion Holding was owned 49.5% by affiliates of Advent, 49.5% by affiliates of GSC and 1% by members of management.
	Purchase Price Allocation
	The fair value of identifiable intangible assets acquired and liabilities assumed was based on many factors including an analysis of historical financial performance and estimates of future performance, and was determined using analytical approaches appropriate to the facts and circumstances, including discounted cash flow and market-based approaches. The allocation of the purchase price to the identifiable assets acquired and liabilities assumed as of April 30, 2012, consisted of the following:
	(in millions)	Fair Value
	Trade accounts receivable	$	162.4
	Property and equipment	112.9
	Identifiable intangible assets	1,986.40
	Goodwill(1)	1,794.80
	All other assets	302.3
	Total assets acquired	$	4,358.80
	Existing debt (including fair value adjustment)	(1,710.8		)
	All other liabilities	(945.4		)
	Noncontrolling interests	(109.9		)
	Net assets of acquired company	$	1,592.70
	(1)	For tax purposes, $128.8 million of goodwill is tax deductible.
	The excess of the purchase price over the fair value of the net tangible and identifiable intangible assets acquired and liabilities assumed was recorded as goodwill. The purchase price of TransUnion Corp exceeded the fair value of the net assets acquired due primarily to growth opportunities and operational efficiencies.
	Identifiable Intangible Assets
	The fair values of the intangible assets acquired consisted of the following:
	(in millions)	Fair Value			Estimated
					Useful Life
	Database and credit files	$	765		15 years
	Technology and software	364.6			7 years
	Trade names and trademarks	546.1			40 years
	Customer relationships	308			20 years
	Other	2.7			5 years
	Total identifiable intangible assets	$	1,986.40
	The weighted-average useful life of identifiable intangible assets is approximately 21.2 years.
	Acquisition Costs
	The Company incurred $36.5 million of acquisition-related costs, including investment banker fees, legal fees, due diligence and other external costs recorded in other income and expense. Of this total, $15.2 million was incurred by TransUnion Holding, $0.4 million was incurred by TransUnion Corp after the acquisition, and $20.9 million was incurred by TransUnion Corp prior to the acquisition. TransUnion Corp also incurred $2.7 million of loan fees for a bridge loan prior to the date of acquisition. None of the costs incurred by TransUnion Corp prior to the acquisition are reflected in TransUnion Holding’s consolidated results of operations.

Business_Acquisitions

Business Acquisitions	12 Months Ended
	Dec. 31, 2013
Business Combinations [Abstract]	'
Business Acquisitions	'
	Business Acquisitions
	2013 acquisitions
	TLO, LLC.
	On December 16, 2013, we acquired a 100% ownership interest in certain net assets of TLO, LLC ("TLO") for $152.4 million in cash, which was partially funded through borrowing on the Company's term loan as further discussed in Note 12, "Debt." TLO provides data solutions for identity authentication, fraud prevention, and debt recovery. The Company established a newly incorporated entity, TransUnion Risk and Alternative Data Solutions, Inc. ("Alternative Data") to purchase the net assets of TLO.
	Pro forma financial information is not presented because the acquisition was not material to our 2013 consolidated operating results. The results of operations of this business have been included as part of the USIS segment in the accompanying consolidated statements of income since the date of acquisition.
	Purchase Price Allocation
	The allocation of the purchase price is preliminary pending the preparation of the valuation of assets acquired and liabilities assumed, which is expected to be completed during 2014. The preliminary fair value of the assets acquired and liabilities assumed as of December 31, 2013, consisted of the following:
	(in millions)	Fair Value
	Other current assets	$	0.3
	Property and equipment	10.6
	Identifiable intangible assets	88.4
	Goodwill(1)	58.9
	Total assets acquired	$	158.2
	Total liabilities assumed	(5.8		)
	Net assets of acquired company	$	152.4
	(1)	All of the goodwill is deductible for tax purposes.
	The excess of the purchase price over the preliminary fair value of the net assets acquired was recorded as goodwill. The purchase price of TLO exceeded the fair value of the net assets acquired due primarily to growth opportunities, synergies associated with its internal use software and our existing customer base and brand name, and other technological and operations synergies.
	Identifiable Intangible Assets
	The fair value estimate of identifiable intangible assets acquired, including databases, internal use software, customer relationships, and other potential intangible assets, is preliminarily pending a final valuation. The weighted-average useful life of intangible assets acquired was incomplete at the time these financial statements were issued.
	Acquisition Costs
	During 2013, the Company incurred $3.7 million of acquisition-related costs for this acquisition, including banking fees, legal fees, due diligence and other external costs, which were expensed and recorded in other income and expense.
	Other 2013 Business Acquisitions
	The Company had other business acquisitions during 2013 that individually and in the aggregate were not material.
	On September 4, 2013, we acquired 100% ownership of e-Scan Data Systems, Inc. ("eScan"). a business that provides services to healthcare providers to capture uncompensated care costs in their revenue management programs. This acquisition is in line with our strategic objective to invest in the growing healthcare industry and will supplement and has been integrated into our current healthcare offerings in our USIS business segment. The acquisition was not material to our 2013 consolidated operating results.
	On March 1, 2013, we acquired 80% ownership in Data Solutions Serviços de Informática Ltda. (“ZipCode”), a Brazilian company that provides data enrichment and registry information services. This acquisition is in line with our strategic objective to invest in growing international regions and has been integrated into our International business segment. The acquisition was not material to our 2013 consolidated operating results.
	2011 acquisitions
	Crivo Sistemas em Infromatica S.A.
	On December 28, 2011, we acquired an 80% ownership interest in Crivo Sistemas em Informatica S.A. ("Crivo"), a Brazilian company that provides credit, risk and fraud-related decisioning services. The purchase price allocation was completed in 2012. The results of operations of this business have been included as part of the International segment in the accompanying consolidated statements of income since the date of acquisition.
	Financial Healthcare Systems, LLC
	On October 13, 2011, we acquired a 100% ownership interest in Financial Healthcare Systems, LLC ("FHS"), a Colorado limited liability company that provides software-as-a-service solutions to help healthcare providers inform patients of their out-of-pocket costs. The purchase price allocation was completed in 2011. The results of operations of this business have been included as part of the USIS segment in the accompanying consolidated statements of income since the date of acquisition.

Other_Current_Assets

Other Current Assets	12 Months Ended
	Dec. 31, 2013
Prepaid Expense and Other Assets, Current [Abstract]	'
Other Current Assets	'
	Other Current Assets
	TransUnion Holding
	Other current assets of TransUnion Holding consisted of the following:
	(in millions)	December 31,		December 31,
		2013		2012
	Deferred income tax assets	$	22.1	$	36.3
	Prepaid expenses	34.9		33.8
	Income taxes receivable	6.8		4.7
	Deferred financing fees	6.8		5.7
	Other	2.9		2.2
	Total other current assets	$	73.5	$	82.7
	TransUnion Corp
	Other current assets of TransUnion Corp Successor consisted of the following:
	(in millions)	December 31,		December 31,
		2013		2012
	Deferred income tax assets	$	37.1	$	18.9
	Prepaid expenses	34.9		33.8
	Income taxes receivable	5.7		3.8
	Deferred financing fees	0.4		—
	Other	2.9		2.2
	Total other current assets	$	81	$	58.7

Property_Plant_and_Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Abstract]	'
Property, Plant and Equipment	'
	Property, Plant and Equipment
	Property, plant and equipment, including those acquired by capital lease, consisted of the following:
	(in millions)	December 31, 2013			December 31, 2012
	Computer equipment and furniture	$	107.8		$	75.5
	Building and building improvements	64.3			42.7
	Purchased software	45.3			26.2
	Land	3.2			3.2
	Total cost of property, plant and equipment	220.6			147.6
	Less: accumulated depreciation	(70.2		)	(26.4		)
	Total property, plant and equipment, net of accumulated depreciation	$	150.4		$	121.2
	Depreciation expense, including depreciation of assets recorded under capital leases, for TransUnion Holding and TransUnion Corp Successor for the year ended December 31, 2013, was $44.0 million. Depreciation expense for TransUnion Holding from the date of inception through December 31, 2013, and for TransUnion Corp Successor for the eight months ended December 31, 2012, was $26.7 million. Depreciation expense for TransUnion Corp. Predecessor for the four months ended April 30, 2012 and the year ended December 31, 2011, was $12.4 million and $39.3 million, respectively.

Goodwill

Goodwill	12 Months Ended
	Dec. 31, 2013
Goodwill [Abstract]	'
Goodwill	'
	Goodwill
	Goodwill is tested for impairment at the reporting unit level on an annual basis, in the fourth quarter, or on an interim basis if changes in circumstances could reduce the fair value of a reporting unit below its carrying value. Our reporting units are consistent with our operating segments for the U.S. Information Services and Interactive segment. The reporting units for our International segment are the geographic regions of Africa, Canada, Latin America and Asia.
	Our impairment tests are performed using a discounted cash flow analysis that requires certain assumptions and estimates regarding economic factors and future profitability. Goodwill impairment tests performed during 2013, 2012 and 2011 resulted in no impairment. At December 31, 2013, there was no accumulated goodwill impairment loss.
	As a result of the 2012 Change in Control Transaction, the excess of the purchase price over the fair value of the net tangible and identifiable intangible assets acquired was recorded as goodwill. See Note 2, “2012 Change in Control Transaction.”
	Goodwill allocated to our segments as of December 31, 2013, December 31, 2012, April 30, 2012, and December 31, 2011, and the changes in the carrying amount of goodwill during those periods consist of the following:
	(in millions)	USIS			International			Interactive			Total
	TransUnion Corp. Predecessor balance, December 31, 2011	$	147.5		$	81.8		$	45.9		$	275.2
	Acquisitions	—			0.8			—			0.8
	Tax deductible goodwill adjustment	—			(10.3		)	—			(10.3		)
	Foreign exchange rate adjustment	—			1.8			—			1.8
	TransUnion Corp. Predecessor balance, April 30, 2012	$	147.5		$	74.1		$	45.9		$	267.5
	Purchase accounting adjustments related to acquisition of TransUnion Corp.	987.8			455.3			90.9			1,534.00
	Acquisitions	—			9.9			—			9.9
	Tax deductible goodwill adjustment	—			6.7			—			6.7
	Additional purchase price related to acquisition of Brazil subsidiary	—			1.8			—			1.8
	Goodwill related to disposed equity method investment	—			(0.2		)	—			(0.2		)
	Foreign exchange rate adjustment	—			(15.5		)	—			(15.5		)
	TransUnion Holding and TransUnion Corp. Successor balance, December 31, 2012	$	1,135.30		$	532.1		$	136.8		$	1,804.20
	Purchase accounting adjustments	(4.7		)	(3.8		)	(0.6		)	(9.1		)
	Acquisitions	125.9			25.4			—			151.3
	Tax deductible goodwill adjustment	—			(2.1		)	—			(2.1		)
	Foreign exchange rate adjustment	—			(33.9		)	—			(33.9		)
	Sale of Africa subsidiary	—			(0.7		)	—			(0.7		)
	TransUnion Holding and TransUnion Corp. Successor balance, December 31, 2013	$	1,256.50		$	517		$	136.2		$	1,909.70
	See Note 2, “Change in Control Transaction,” and Note 3, “Business Acquisitions,” for information on our purchase accounting adjustments and business acquisitions.

Intangible_Assets

Intangible Assets	12 Months Ended
	Dec. 31, 2013
Intangible Assets, Net (Excluding Goodwill) [Abstract]	'
Intangible Assets	'
	Intangible Assets
	Intangible assets are initially recorded at their acquisition cost, or fair value if acquired as part of a business combination, and amortized over their estimated useful lives.
	As a result of the 2012 Change in Control Transaction, during 2012 the following purchase accounting fair value increase adjustments were made to intangible assets: database and credit files, $705.1 million; internal use software, $261.2 million; customer relationships, $256.1 million; and trademarks, copyrights and patents, $537.0 million. Noncompete agreements were reduced by $3.3 million. All accumulated amortization was reduced to zero in connection with the 2012 Change in Control Transaction. See Note 2, “Change in Control Transaction.” Increases to the gross amount of intangible assets during 2013 include expenditures to develop internal use software and increases due to business acquisitions, partially offset by the impact of foreign exchange rate adjustments.
	Intangible assets consisted of the following:
		31-Dec-13							31-Dec-12
	(in millions)	Gross		Accumulated			Net		Gross		Accumulated			Net
				Amortization							Amortization
	Database and credit files	$	761.8	$	(84.3	)	$	677.5	$	763.6	$	(33.9	)	$	729.7
	Internal use software	510.4		(94.7		)	415.7		380.3		(34.8		)	345.5
	Customer relationships	336.1		(25.8		)	310.3		306.7		(10.3		)	296.4
	Trademarks, copyrights and patents	550.7		(22.2		)	528.5		545.5		(7.4		)	538.1
	Noncompete and other agreements	2.5		(0.5		)	2		2.1		(0.2		)	1.9
	Total intangible assets	$	2,161.50	$	(227.5	)	$	1,934.00	$	1,998.20	$	(86.6	)	$	1,911.60
	All amortizable intangibles are amortized on a straight-line basis over their estimated useful lives. Database and credit files are amortized over a twelve- to fifteen-year period. Internal use software is amortized over a three- to seven-year period. Customer relationships are amortized over a ten- to twenty-year period. Trademarks are generally amortized over a forty-year period. Copyrights, patents, noncompete and other agreements are amortized over varying periods based on their estimated economic life.
	Amortization expense related to intangible assets for TransUnion Holding and TransUnion Corp for the year ended December 31, 2013, was $142.8 million. Amortization expense for TransUnion Holding from inception through December 31, 2012, and for TransUnion Corp Successor for the eight months ended December 31, 2012, was $88.3 million. Amortization expense for TransUnion Corp Predecessor for the four months ended April 30, 2012, and the year ended December 31, 2011 was $16.8 million and $46.0 million, respectively.
	Estimated future amortization expense related to purchased intangible assets at December 31, 2013, is as follows:
	(in millions)	Annual
		Amortization
		Expense
	2014	$	155.5
	2015	154.8
	2016	148.7
	2017	143.2
	2018	141.3
	Thereafter	1,190.50
	Total future amortization expense	$	1,934.00

Other_Assets

Other Assets	12 Months Ended
	Dec. 31, 2013
Other Assets [Abstract]	'
Other Assets	'
	Other Assets
	TransUnion Holding
	Other assets of TransUnion Holding consisted of the following:
	(in millions)	December 31,		December 31,
		2013		2012
	Investments in affiliated companies	$	92.4	$	88.6
	Deferred financing fees	29.7		34
	Deposits	15.8		6.3
	Other	0.7		0.9
	Total other assets	$	138.6	$	129.8
	Deposits increased due to acquisition related deposits made during 2013.
	TransUnion Corp
	Other assets of TransUnion Corp Successor consisted of the following:
	(in millions)	December 31,		December 31,
		2013		2012
	Investments in affiliated companies	$	92.4	$	88.6
	Deposits	15.8		6.3
	Deferred financing fees	1.6		—
	Other	0.8		0.8
	Total other assets	$	110.6	$	95.7
	Deposits increased due to acquisition related deposits made during 2013.

Investments_in_Affiliated_Comp

Investments in Affiliated Companies	12 Months Ended
	Dec. 31, 2013
Investments in Affiliated Companies [Abstract]	'
Investments in Affiliated Companies	'
	Investments in Affiliated Companies
	Investments in affiliated companies represent our investment in non-consolidated domestic and foreign entities. These entities are in businesses similar to ours, such as credit reporting, credit scoring and credit monitoring services. All of the investments in affiliated companies are owned by TransUnion Corp. TransUnion Holding has no equity method investments other than the equity method investments owned by TransUnion Corp.
	We use the equity method to account for investments in affiliates where we have at least a 20% ownership interest or where we are able to exercise significant influence. For these investments, we adjust the carrying value for our proportionate share of the affiliates’ earnings, losses and distributions, as well as for purchases and sales of our ownership interest.
	We use the cost method to account for all other nonmarketable investments. For these investments, we adjust the carrying value for purchases and sales of our ownership interests and for distributions received from the affiliates.
	For all investments, we adjust the carrying value if we determine that an other-than-temporary impairment in value has occurred. There were no impairments of investments in affiliated companies taken in 2013, 2012 or 2011.
	Investments in affiliated companies consisted of the following:
	(in millions)	December 31,			December 31,
		2013			2012
	Trans Union de Mexico, S.A. (25.69% ownership interest)	$	50		$	49.4
	Credit Information Bureau (India) Ltd. (27.5% ownership interest)	28.4			26.6
	All other equity method investments	6.1			4.7
	Total equity method investments	$	84.5		$	80.7
	Total cost method investments	7.9			7.9
	Total investments in affiliated companies	$	92.4		$	88.6
	These balances are included in other assets on the balance sheet.
	Earnings from equity method investments, included in non-operating income and expense, and dividends received from equity method investments consisted of the following:
	(in millions)		TransUnion			TransUnion		TransUnion		TransUnion Corp		TransUnion Corp
			Holding and			Holding		Corp Successor		Predecessor		Predecessor
			TransUnion			From the Date of		Eight Months		Four Months		Year Ended
			Corp Successor			Inception through		Ended		Ended		31-Dec-11
			Year Ended December, 2013			31-Dec-12		31-Dec-12		April 30, 2012
	Earnings from equity method investments		$	13.7		$	8	$	8	$	4.1	$	11.4
	Dividends received from equity method investments		$	10.1		$	9.3	$	9.3	$	0.4	$	8
	Under SEC Regulation S-X, Rule 4-08(g), our investments in TransUnion de Mexico, S.A. and Credit Information Bureau (India) Ltd. are considered significant equity method investments for TransUnion Holding. TransUnion de Mexico, S.A. is also considered a significant equity method investment for TransUnion Corp. The summarized financial information and earnings from the significant equity method investments required by SEC Regulation S-X, Rule 1-02(bb)(i) and (ii) consisted of the following:
	(in millions)		31-Dec-13			31-Dec-12
	Current assets		$	62.6		$	61.4
	Noncurrent assets		$	19.8		$	22.1
	Current liabilities		$	22.4		$	23.2
	Noncurrent liabilities		$	1.4		$	1.3
	(in millions)		Year Ended December 31, 2013			Eight Months Ended December 31, 2012		Four Months Ended April 30, 2012		Year Ended December 31, 2011
	Revenue		$	95.2		$	60.5	$	30.2	$	81.9
	Operating Income		$	47.6		$	27.3	$	13.4	$	41
	Income from continuing operations		$	39		$	22.3	$	11.1	$	33.1
	Net income		$	39		$	22.3	$	11.1	$	33.1
	Dividends received from cost method investments were $0.7 million in 2013. Dividends received from cost method investments from the date of inception through December 31, 2012 and for the eight months ended December 31, 2012, for TransUnion Holding and TransUnion Corp Successor, respectively, were $0.6 million. TransUnion Corp Predecessor did not receive any dividends from cost method investments for the four months ended April 30, 2012. Dividends received from cost method investments for TransUnion Corp Predecessor were $0.6 million in 2011. These dividends have been included in other income.

Other_Current_Liabilities

Other Current Liabilities	12 Months Ended
	Dec. 31, 2013
Other Liabilities, Current [Abstract]	'
Other Current Liabilities	'
	Other Current Liabilities
	TransUnion Holding
	Other current liabilities of TransUnion Holding consisted of the following:
	(in millions)	December 31,		December 31,
		2013		2012
	Accrued payroll	$	63.7	$	64.2
	Accrued interest	23.1		25.8
	Accrued litigation	13.8		5.6
	Accrued employee benefits	9.6		10.6
	Deferred revenue	9.1		12.5
	Other	14.2		10.6
	Total other current liabilities	$	133.5	$	129.3
	TransUnion Corp
	Other current liabilities of TransUnion Corp Successor consisted of the following:
	(in millions)	December 31,		December 31,
		2013		2012
	Accrued payroll	$	63.7	$	64.2
	Payable to TransUnion Holding	52.7		—
	Accrued litigation	13.8		5.6
	Accrued employee benefits	9.6		10.6
	Deferred revenue	9.1		12.5
	Accrued interest	4.9		3.7
	Other	13.9		10.4
	Total other current liabilities	$	167.7	$	107
	The payable to TransUnion Holding represents the amount owed by TransUnion Corp for using the TransUnion Holding tax loss to offset TransUnion Corp taxable income consistent with the intercompany tax sharing agreement. This amount eliminates on the TransUnion Holding consolidated balance sheet but does not eliminate on the TransUnion Corp consolidated balance sheet.

Other_Liabilities

Other Liabilities	12 Months Ended
	Dec. 31, 2013
Other Liabilities, Noncurrent [Abstract]	'
Other Liabilities	'
	Other Liabilities
	TransUnion Holding
	Other liabilities of TransUnion Holding consisted of the following:
	(in millions)	December 31,		December 31,
		2013		2012
	Retirement benefits	$	10.4	$	10.6
	Unrecognized tax benefits	4.6		4.9
	Other	7.6		6.4
	Total other liabilities	$	22.6	$	21.9
	TransUnion Corp
	Other liabilities of TransUnion Corp Successor consisted of the following:
	(in millions)	December 31,		December 31,
		2013		2012
	Retirement benefits	$	10.4	$	10.6
	Unrecognized tax benefits	4.5		4.8
	Other	7.6		6.2
	Total other liabilities	$	22.5	$	21.6

Debt

Debt	12 Months Ended
	Dec. 31, 2013
Debt Instruments [Abstract]	'
Debt	'
	Debt
	Debt outstanding consisted of the following:
		TransUnion Holding						TransUnion Corp Successor
	(in millions)	December 31,			December 31,			December 31,			December 31,
		2013			2012			2013			2012
	Senior secured term loan, payable in quarterly installments through February 10, 2019, including variable interest (4.25% at December 31, 2013) at LIBOR or alternate base rate, plus applicable margin, including original discount of $0.2 million at December 31, 2013	$	1,123.50		$	923.4		$	1,123.50		$	923.4
	Senior secured revolving line of credit, due on February 10, 2017, variable interest (4.63% weighted average at December 31, 2013) at LIBOR or alternate base rate, plus applicable margin	—			—			—			—
	Senior notes, principal due June 15, 2018, semi-annual interest payments, 11.375% fixed interest per annum, including unamortized fair value adjustment of $95.9 million and $113.4 million as of December 31, 2013 and 2012, respectively (11.375% notes)	740.9			758.4			740.9			758.4
	Senior unsecured PIK toggle notes, principal due June 15, 2018, semi-annual interest payments, 9.625% fixed interest per annum (9.625% notes)	600			600			—			—
	Senior unsecured PIK toggle notes, principal due June 15, 2018, semi-annual interest payments, 8.125% fixed interest per annum, including issuance discount of $1.7 million and $2.0 million at December 31, 2013 and 2012, respectively (8.125% notes)	398.3			398			—			—
	Note payable for 2011 acquisition, payable in annual installments through April 15, 2013, excluding imputed interest of 10.0%	—			0.9			—			0.9
	Capital lease obligations	4.2			0.2			4.2			0.2
	Total debt	$	2,866.90		$	2,680.90		$	1,868.60		$	1,682.90
	Less short-term debt and current maturities	(13.8		)	(10.6		)	(13.8		)	(10.6		)
	Total long-term debt	$	2,853.10		$	2,670.30		$	1,854.80		$	1,672.30
	Excluding potential additional principal payments due on the senior secured credit facility beginning in 2014 based on excess cash flows of the prior year, scheduled future maturities of total debt at December 31, 2013, was as follows:
	(in millions)	TransUnion			TransUnion
		Holding			Corp
					Successor
	2014	$	13.8		$	13.8
	2015	12.6			12.6
	2016	12.6			12.6
	2017	11.6			11.6
	2018	1,656.60			656.6
	Thereafter	1,065.30			1,065.30
	Unamortized premiums and discounts on notes	94.4			96.1
	Total	$	2,866.90		$	1,868.60
	Interest expense for the periods presented consisted of the following:
		TransUnion			TransUnion			TransUnion			TransUnion			TransUnion
		Holding			Holding			Corp Successor			Corp Successor			Corp Predecessor			TransUnion
		Twelve Months Ended			Inception			Twelve			Eight			Four			Corp Predecessor
					Through			Months Ended			Months Ended			Months Ended			Twelve
																	Months Ended
	(in millions)	December 31,			December 31,			December 31,			December 31,			April 30,			December 31,
		2013			2012			2013			2012			2012			2011
	Senior secured term loan	$	44.2		$	35		$	44.2		$	35		$	15.6		$	49.9
	Senior secured revolving line of credit	0.7			—			0.7			—			—			—
	11.375% notes	55.9			38.1			55.9			38.1			25.1			75.1
	9.625% notes	62.2			46.7			—			—			—			—
	8.125 % notes	34.1			5.5			—			—			—			—
	Other	0.5			(0.3		)	0.6			(0.3		)	(0.2		)	1.4
	Total interest	$	197.6		$	125		$	101.4		$	72.8		$	40.5		$	126.4
	Loan fees, included in other income and expense, for the periods presented consisted the following:
		TransUnion			TransUnion			TransUnion			TransUnion			TransUnion
		Holding			Holding			Corp Successor			Corp Successor			Corp Predecessor			TransUnion
		Twelve Months Ended			Inception			Twelve			Eight			Four			Corp Predecessor
					Through			Months Ended			Months Ended			Months Ended			Twelve
																	Months Ended
	(in millions)	December 31,			December 31,			December 31,			December 31,			April 30,			December 31,
		2013			2012			2013			2012			2012			2011
	Loss on early extinguishment of senior secured term loan	$	—		$	—		$	—		$	—		$	—		$	59.3
	Senior secured term loan	2.4			—			2.4			—			—			—
	Senior secured revolving line of credit	1.1			0.7			1.1			0.7			0.4			1.3
	9.625% notes	—			1			—			—			—			—
	Other	0.3			0.2			0.3			0.2			2.7			0.3
	Total loan fees	$	3.8		$	1.9		$	3.8		$	0.9		$	3.1		$	60.9
	TransUnion Holding
	9.625% notes
	In connection with the acquisition of TransUnion Corp, on March 21, 2012, TransUnion Holding issued $600.0 million principal amount of 9.625%/10.375% senior unsecured PIK toggle notes (“9.625% notes”) due June 15, 2018, in a private placement to certain investors. Pursuant to an exchange offer completed in October 2012, these notes were registered with the SEC. TransUnion Holding is required to pay interest on the 9.625% notes in cash unless certain conditions described in the indenture governing the notes are satisfied, in which case TransUnion Holding will be entitled to pay interest for such period by increasing the principal amount of the notes or by issuing new notes (such increase being referred to as “PIK,” or paid-in-kind interest) to the extent described in the indenture.
	The indenture governing the 9.625% notes contains nonfinancial covenants that include restrictions on our ability to pay dividends or distributions, repurchase equity, prepay junior debt, make certain investments, incur additional debt, issue certain stock, incur liens on property, merge, consolidate or sell certain assets, enter into transactions with affiliates, and allow to exist certain restrictions on the ability of subsidiaries to pay dividends or make other payments to TransUnion Holding. We are in compliance with all covenants under the indenture.
	8.125% notes
	On November 1, 2012, TransUnion Holding issued $400.0 million principal amount of 8.125%/8.875% senior unsecured PIK toggle notes (“8.125% notes”) due June 15, 2018, at an offering price of 99.5% in a private placement to certain investors. The proceeds were used to pay a $373.8 million dividend to our shareholders and to pay various costs associated with issuing the debt and obtaining consents from our existing debt holders. Pursuant to an exchange offer completed in August 2013, these notes were registered with the SEC. TransUnion Holding is required to pay interest on the 8.125% notes in cash unless certain conditions described in the indenture governing the notes are satisfied, in which case TransUnion Holding will be entitled to pay interest for such period by increasing the principal amount of the notes or by issuing new notes to the extent described in the indenture.
	The indenture governing the 8.125% notes and the nonfinancial covenants are substantially identical to those governing the 9.625% notes. We are in compliance with all covenants under the indenture.
TransUnion Holdings relies on cash distribution paid by TransUnion Corp Holding to fund its debt service obligations. The indentures governing TransUnion Corp's various debt obligations contain certain restrictions on TransUnion Corp's ability to make cash distributions. We do not expect these restrictions to impact TransUnion Corp's ability to make sufficient distributions to TransUnion Holding to fund TransUnion Holding's debt service obligations in the foreseeable future. As of December 31, 2013 TransUnion Corp’s capacity to make these distributions was restricted to approximately $140 million.
Transunion Corp
Senior secured credit facility
On June 15, 2010, the Company entered into, and on February 10, 2011, amended and restated, a senior secured credit facility ("credit facility") with various lenders. The credit facility consists of a seven-year senior secured term loan ("term loan") and a $210.0 million senior secured revolving line of credit ("revolving line of credit"). Interest rates on the term loan and revolving line of credit are based on the London Interbank Offered Rate (“LIBOR”) unless otherwise elected. As of December 31, 2013, the term loan was subject to a floor of 1.25% plus an applicable margin of 3.00%. The revolving line of credit had three tranches subject to floors from 1.25% to 1.75%, plus applicable margins from 2.75% to 5.00%, depending on the tranche and our senior secured net leverage ratio. There is a 0.5% annual commitment fee payable quarterly based on the undrawn portion of the revolving line of credit.
During 2013, the Company borrowed an additional $145.0 million and an additional $65.0 million against the senior secured term loan and made principal repayments of $10.0 million. The $145.0 million was used to partially fund the acquisition of the net assets from TLO, LLC. The $65.0 million was used to pay down our senior secured revolving line of credit balance, which was used during the third quarter of 2013 to fund an acquisition. As of December 31, 2013, the Company could borrow up to the full $210.0 million under the revolving line of credit.
Under the term loan, the Company is required to make principal payments of 0.25% of the original principal balance after amendments at the end of each quarter, with the remaining principal balance due February 10, 2019. The Company will also be required to make additional principal payments beginning in 2014 based on excess cash flows of the prior year. Depending on the senior secured net leverage ratio for the year, a principal payment of between zero and fifty percent of the excess cash flows will be due the following year. No payment will be due in 2014 based on 2013 excess cash flows. Under the revolving line of credit, the first $25.0 million commitment expires June 15, 2015, the next $30.0 million commitment expires February 10, 2016, and the remaining $155.0 million commitment expires on February 10, 2017.
With certain exceptions, the obligations are secured by a first-priority security interest in substantially all of the assets of Trans Union LLC, including its investments in subsidiaries. The credit facility contains various restrictions and nonfinancial covenants, along with a senior secured net leverage ratio test that only applies to periods in which we have outstanding amounts borrowed against the revolving line of credit. The nonfinancial covenants include restrictions on dividends, investments, dispositions, future borrowings and other specified payments, as well as additional reporting and disclosure requirements. The credit facility restrictions and covenants exclude any impact of the purchase accounting fair value adjustments or the increased amortization expense resulting from the 2012 Change in Control Transaction. We are in compliance with all of the covenants under the credit facility.
On April 30, 2012, we entered into swap agreements that effectively fixed the interest payments on a portion of the term loan at 2.033%, plus the applicable margin, beginning March 28, 2013. Under the swap agreements, which we have designated as cash flow hedges, we pay a fixed rate of interest of 2.033% and receive a variable rate of interest equal to the greater of 1.50% or the 3-month LIBOR. The net amount to be paid or received has been and will continue to be recorded as an adjustment to interest expense. The change in fair value of the swap instrument is recorded in accumulated other comprehensive income (loss), net of tax, in the consolidated statements of comprehensive income to the extent the hedge is effective, and in other income and expense in the consolidated statements of income to the extent the hedge is ineffective. The total notional amount of the swaps at December 31, 2013 was $462.5 million and is scheduled to decrease as scheduled principal payments are made on the term loan. The total fair value of the swap instruments as of December 31, 2013, was a liability of $1.0 million and was included in other liabilities on our consolidated balance sheet. The net of tax unrealized loss on the swap instruments as of December 31, 2013, of $0.6 million was included in accumulated other comprehensive income (loss). Through December 31, 2013, there were no gains or losses related to hedge ineffectiveness. If we elect a non-LIBOR interest rate on our term loan, or if we pay down our term loan below the notional amount of the swaps, the resulting ineffectiveness would be reclassified from accumulated other comprehensive income (loss) on our consolidated balance sheet to other income and expense on our consolidated statement of income. The cash flows on the hedge instrument began on June 28, 2013, and we do not expect to elect a non-LIBOR loan or to pay down our term loan below the notional amount of the swaps in the next 12 months.
11.375% notes
In connection with the 2010 Change in Control Transaction, as defined in our Annual Report on Form 10-K for the year ended December 31, 2012, previously filed with the SEC, on June 15, 2010, Trans Union LLC and its wholly-owned subsidiary TransUnion Financing Corporation, issued $645.0 million principal amount of 11.375% senior unsecured notes ("11.375% notes")due June 15, 2018, in a private placement to certain investors. Pursuant to an exchange offer completed in April 2011, these notes were subsequently registered with the SEC. As a result of the 2012 Change in Control Transaction, a purchase accounting fair value adjustment increase of $124.2 million was allocated to the senior notes.
The indenture governing the senior notes contains nonfinancial covenants that include restrictions on dividends, investments, dispositions, future borrowings and other specified payments, as well as additional reporting and disclosure requirements. The covenants exclude the impact of the purchase accounting fair value adjustments and the increased amortization expense resulting from the 2012 Change in Control Transaction. We are in compliance with all covenants under the indenture.
Note Payable for 2011 acquisition of noncontrolling interests
On April 15, 2011, we acquired the remaining 20% ownership interest in our South Africa subsidiary, TransUnion Analytic and Decision Services (Proprietary) Limited, from the noncontrolling shareholders. In connection with this acquisition, we issued a note to the sellers for $2.0 million. The note was an unsecured, non-interest bearing note, discounted by $0.2 million for imputed interest, was due in annual installments of $1.0 million on April 15, 2012, and April 15, 2013, and has been paid off as of the balance sheet date. Interest expense was calculated under the effective interest method using an imputed interest rate of 10.0%.
TransUnion Holding and TransUnion Corp
Fair Value of Fixed Rate Notes
The fair value of our fixed-rate debt is determined using Level 2 inputs, quoted market prices for publicly traded instruments. As of December 31, 2013, the fair value of our 9.625%, 8.125% and 11.375% notes were $645.8 million, $425.0 million and $703.1 million, respectively, compared to book value of $600.0 million, $398.3 million and $740.9 million, respectively.

Income_Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Income Taxes	'
	Income Taxes
	The provision (benefit) for income taxes on income (loss) from continuing operations consisted of the following:
		TransUnion							TransUnion Corp
		Holding
	(in millions)	Twelve Months Ended December 31, 2013			From Date of Inception Through December 31, 2012				Successor Twelve Months Ended December 31, 2013				Successor Eight Months Ended December 31, 2012					Predecessor Four Months Ended April 30,			Predecessor Twelve Months Ended December 31, 2011
																		2012
	Federal
	Current	$	0.1		$	0.1			$	15.3			$	—				$	1		$	(3.0	)
	Deferred	(15.5		)	(3.0		)		(13.3		)		13.2					(16.1		)	(1.3		)
	State
	Current	—			(0.5		)		0.2				0.4					0.1			1.6
	Deferred	(0.3		)	(0.3		)		1.6				0.4					(1.5		)	(1.4		)
	Foreign
	Current	18.4			12.1				18.4				12.1					5.7			22.7
	Deferred	(0.4		)	(1.8		)		(0.4		)		(1.8		)			(0.7		)	(0.8		)
	Total provision (benefit) for income taxes	$	2.3		$	6.6			$	21.8			$	24.3				$	(11.5	)	$	17.8
	The components of income (loss) from continuing operations before income taxes consisted of the following:
		TransUnion							TransUnion Corp
		Holding
	(in millions)	Twelve Months Ended December 31, 2013			From Date of Inception Through December 31, 2012				Successor Twelve Months Ended December 31, 2013				Successor Eight Months Ended December 31, 2012					Predecessor Four Months Ended April 30,			Predecessor Twelve Months Ended December 31, 2011
																		2012
	Domestic	$	(72.9	)	$	(33.3	)		$	24.9			$	36.2				$	(79.5	)	$	0.2
	Foreign	47			36				47				36					15.6			66.9
	Total income (loss) from continuing operations before income taxes	$	(25.9	)	$	2.7			$	71.9			$	72.2				$	(63.9	)	$	67.1
	The provision for income taxes on the loss of discontinued operations for the year ended December 31, 2011, was $0.1 million.
	The effective income tax rate reconciliation consisted of the following:
		TransUnion Holding													TransUnion Corp Successor
	(in millions)	Twelve Months Ended December 31, 2013						From Date of Inception Through December 31, 2012							Twelve Months Ended December 31, 2013						Eight Months Ended December 31, 2012
	Income taxes at 35% statutory rate	$	(9.1	)	35	%		$	0.9			35	%		$	25.1			35	%	$	25.3		35	%
	Increase (decrease) resulting from:
	State taxes	(0.1		)	0.4	%		(0.9		)		(35.0	)%		1.6				2.2	%	0.7			1	%
	Foreign rate differential	(0.9		)	3.5	%		(4.0		)		(148.1	)%		(0.9		)		(1.3	)%	(4.0		)	(5.5	)%
	Change in control transaction expenses	—			—			1.8				66.7	%		—				—		0.2			0.3	%
	Application of ASC 740-30 to foreign earnings	15.1			(58.0	)%		4.3				159.2	%		(1.6		)		(2.3	)%	(1.9		)	(2.7	)%
	Impact of foreign dividends	(1.7		)	6.4	%		5				185.2	%		(1.7		)		(2.3	)%	4.9			6.8	%
	Other	(1.0		)	3.9	%		(0.5		)		(18.6	)%		(0.7		)		(1.0	)%	(0.9		)	(1.2	)%
	Total	$	2.3		(8.8	)%		$	6.6			244.4	%		$	21.8			30.3	%	$	24.3		33.7	%
		TransUnion Corp Predecessor
	(in millions)	Four Months Ended April 30, 2012						Twelve Months Ended December 31, 2011
	Income taxes at 35% statutory rate	$	(22.4	)	35	%		$	23.5			35	%
	Increase (decrease) resulting from:
	State taxes	(1.4		)	2.2	%		(0.4		)		(0.6	)%
	Foreign rate differential	(1.2		)	1.9	%		(3.9		)		(5.8	)%
	Change in control transaction expenses	2.7			(4.2	)%		(4.5		)		(6.7	)%
	Application of ASC 740-30 to foreign earnings	8.1			(12.7	)%		2.5				3.7	%
	Impact of foreign dividends	2			(3.1	)%		2				3	%
	Other	0.7			(1.1	)%		(1.4		)		(2.1	)%
	Total	$	(11.5	)	18	%		$	17.8			26.5	%
	TransUnion Holding
	For 2013, we reported a loss before income taxes with an income tax expense, resulting in a negative effective tax rate for this period that is not meaningful. The increase in tax expense, compared to a statutory-rate tax benefit, was due to the tax on our unremitted foreign earnings that are not considered indefinitely reinvested outside the U.S.
	TU Holding entered into an intercompany tax allocation agreement with TransUnion Corp in 2013, effective for all taxable periods from May 1, 2012, forward, in which they are members of the same consolidated federal or state tax groups. The agreement allocates the consolidated tax liability from those filings among the various members of the group, and we recorded its effects in the respective company balance sheets during 2013.
	Effective January 1, 2012, the look-through rule under subpart F of the U.S. Internal Revenue Code expired. Beginning in 2012, under ASC 740-30, we recorded tax expense for the income tax we would incur if our foreign earnings were distributed up our foreign chain of ownership, but not remitted to the U.S. As part of the American Taxpayer Relief Act of 2012 enacted into law on January 2, 2013, the look-through rule was retroactively reinstated to January 1, 2012, and we reversed the tax expense we recorded for subpart F in 2012 during the first quarter of 2013.
	The effective tax rate was 244.4% for the period of inception through December 31, 2012. This rate was higher than the 35% U.S. federal statutory rate due primarily to the lapse of the look-through rule and the reduction in available foreign tax credits, the unfavorable impact of ASC 740-30 and tax non-deductibility of certain costs incurred in connection with the 2012 Change in Control Transaction, partially offset by a favorable tax rate differential on the Company’s foreign earnings.
	As a result of the 2012 Change in Control Transaction and increased debt service requirements resulting from the additional debt incurred by TransUnion Holding, we asserted under ASC 740-30 that all unremitted foreign earnings of TransUnion Corp accumulated as of April 30, 2012, were not indefinitely reinvested outside the U.S. Accordingly, in 2012 we recorded a deferred tax liability for the full estimated U.S. tax cost, net of related foreign tax credits, associated with remitting these earnings back to the U.S.
	TransUnion Corp
	For 2013, the effective tax rate of 30.3% was lower than the U.S. federal statutory rate of 35% due primarily to the retroactive reinstatement of the look-through rule, which allowed us to reverse the tax expense we recorded for subpart F in 2012, as well as the favorable tax rate differential on foreign earnings.
	As a result of the 2012 Change in Control Transaction, TransUnion Corp had two taxable years in 2012, one for the Predecessor and one for the Successor. Effective April 30, 2012, TransUnion Corp and its U.S. subsidiaries joined in the filing of a consolidated U.S. federal tax return with TransUnion Holding. The tax expense of TransUnion Corp Successor is calculated as if TransUnion Corp files a separate U.S. tax return, which excludes the operations of TransUnion Holding.
	The effective tax rate was 33.7% for the eight months ended December 31, 2012. This rate was lower than the statutory rate due primarily to the favorable tax rate differential on foreign earnings and the favorable impact of a reduction in foreign withholding tax, partially offset by the lapse of the look-through rule and the reduction in available foreign tax credits.
	For the four months ended April 30, 2012, we reported a loss before income taxes. The effective tax-benefit rate for this period of 18.0% was lower than the statutory rate due primarily to the impact of recording tax expense on our unremitted foreign earnings, the non-deductibility of certain costs incurred in connection with the 2012 Change in Control Transaction and limitations on our foreign tax credits.
	For 2011, the effective tax rate of 26.5% was lower than the statutory rate due primarily to the additional tax-deductible transaction costs resulting from our analysis of the fees incurred in the 2010 Change in Control Transaction and lower tax rates in foreign countries, primarily Canada and Puerto Rico, partially offset by the impact of foreign dividends and foreign tax credits.
	Components of net deferred income tax consisted of the following:
		TransUnion							TransUnion Corp
		Holding							Successor
(in millions)	December 31,			December 31,				December 31,				December 31,
	2013			2012				2013				2012
Deferred income tax assets:
Compensation	$	6.8		$	4.7			$	6.8			$	4.7
Employee benefits	6.3			6.3				6.3				6.3
Legal reserves and settlements	3.5			1.9				3.5				1.9
Hedge investments	0.4			2.2				0.4				2.2
Financing related costs	39.4			46.4				39.4				46.4
Loss and credit carryforwards	72.5			71				69.3				51.3
Other	8.6			6.3				5.4				2.8
Gross deferred income tax assets	$	137.5		$	138.8			$	131.1			$	115.6
Valuation allowance	(25.9		)	(27.2		)		(25.9		)		(27.2		)
Total deferred income tax assets, net	$	111.6		$	111.6			$	105.2			$	88.4
Deferred income tax liabilities:
Depreciation and amortization	$	(647.3	)	$	(662.1	)		$	(647.3	)		$	(662.1	)
Investments in affiliated companies	(17.1		)	(17.1		)		(17.1		)		(17.1		)
Taxes on undistributed foreign earnings	(57.1		)	(49.7		)		(22.9		)		(32.2		)
Other	(4.9		)	(3.9		)		(4.8		)		(3.9		)
Total deferred income tax liability	$	(726.4	)	$	(732.8	)		$	(692.1	)		$	(715.3	)
Net deferred income tax liability	$	(614.8	)	$	(621.2	)		$	(586.9	)		$	(626.9	)
The temporary differences resulting from differing treatment of items for tax and accounting purposes result in deferred tax assets and liabilities. If deferred tax assets are not likely to be recovered in future years, a valuation allowance is recorded. During 2013, our valuation allowance decreased $1.3 million due to the expiration of capital loss carryforwards. As of December 31, 2013 and 2012, a valuation allowance of $25.9 million and $27.2 million, respectively, was recorded against the deferred tax assets generated by capital loss, foreign loss and foreign tax credit carryforwards. Our capital loss carryforwards will expire over the next 2 years our U.S. net operating loss carryforward will expire in twenty years and our foreign loss and foreign credit carryforwards will expire over the next ten years.
No provision has been made for U.S. income taxes or foreign withholding taxes on $67.3 million of unremitted earnings from certain non-U.S. subsidiaries accumulated after April 30, 2012, since these earnings are intended to be permanently reinvested in operations outside the United States. It is impractical at this time to determine the tax impact if these earnings were distributed. Remitting these earnings to the U.S. would result in additional tax expense.
The total amount of unrecognized tax benefits of TransUnion Holding as of December 31, 2013 and 2012, was $4.6 million and $4.9 million, respectively. The amount of unrecognized tax benefits of TransUnion Holding as of December 31, 2013 and 2012, that would affect the effective tax rate if recognized, was $4.6 million and $4.9 million, respectively. The total amount of unrecognized tax benefits of TransUnion Corp as of December 31, 2013 and 2012, was $4.5 million and $4.8 million, respectively. The amount of unrecognized tax benefits of TransUnion Corp as of December 31, 2013 and 2012, that would affect the effective tax rate if recognized, was $4.5 million and $4.8 million, respectively.
The total amount of unrecognized tax benefits consisted of the following:
	TransUnion							TransUnion Corp
	Holding							Successor
(in millions)	December 31,			December 31,				December 31,				December 31,
	2013			2012				2013				2012
Balance as of beginning of period	$	4.9		$	3.2			$	4.8			$	3.2
Additions for tax positions of prior years	—			0.2				—				0.2
Reductions for tax positions of prior years	(0.1		)	—				(0.1		)		—
Additions for tax positions of current year	—			1.7				—				1.6
Reductions relating to settlement and lapse of statute	(0.2		)	(0.2		)		(0.2		)		(0.2		)
Balance as of December 31	$	4.6		$	4.9			$	4.5			$	4.8
Consistent with prior periods, we classify interest on unrecognized tax benefits as interest expense and tax penalties as other income or expense on the statement of income. We classify any interest or penalties related to unrecognized tax benefits as other liabilities on the balance sheet. Interest expense related to taxes was insignificant for the years ended December 31, 2013 and 2012. The accrued interest payable for taxes as of December 31, 2013 and 2012 was $0.7 million and $0.5 million, respectively. There was no significant expense recognized, or significant liability recorded, for tax penalties as of December 31, 2013 or 2012.
We are regularly audited by federal, state, local and foreign taxing authorities. Given the uncertainties inherent in the audit process, it is reasonably possible that certain audits could result in a significant increase or decrease in the total amount of unrecognized tax benefits. An estimate of the range of the increase or decrease in unrecognized tax benefits due to audit results cannot be made at this time. As of December 31, 2013, tax years 2006 and forward remained open for examination in some state and foreign jurisdictions, and tax years 2009 and forward remained open for the U.S. federal audit.

StockBased_Compensation

Stock-Based Compensation	12 Months Ended
	Dec. 31, 2013
Share-based Compensation [Abstract]	'
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	'
	Stock-Based Compensation
	In connection with the 2012 Change in Control Transaction, the 2010 Management Equity Plan (the "2010 Plan") was cancelled and replaced with the TransUnion Holding Company, Inc. 2012 Management Equity Plan (the "2012 Plan") as approved by stockholders. Under the 2012 Plan, stock-based awards may be issued to executive officers, employees and independent directors of the Company. A total of 8.9 million shares have been authorized for grant under the 2012 Plan. As of December 31, 2012, 0.8 million shares remain available for future issuance under the 2012 plan.
	For the year ended December 31, 2013, and from the date of inception through December 31, 2012, TransUnion Holding recognized stock-based compensation of $6.9 million and $3.0 million, with related income tax benefits of approximately $2.5 million and $1.1 million, respectively. For the year ended December 31, 2013, and for the eight months ended December 31, 2012, TransUnion Corp Successor recognized $6.9 million and $2.6 million of stock-based compensation, with a related income tax benefit of approximately $2.5 million and $0.9 million, respectively. For the four months ended April 30, 2012 and the year ended December 31, 2011 TransUnion Corp Predecessor recognized $90.0 million and $4.6 million of stock-based compensation, with related income tax benefits of approximately $32.4 million and $1.7 million, respectively.
	In connection with the 2012 Change in Control Transaction, all outstanding awards under the 2010 Plan immediately vested and TransUnion Corp Predecessor recognized $88.0 million of additional stock-based compensation, with a related income tax benefit of approximately approximately $31.7 million. All options outstanding were then cancelled and existing option holders received $91.2 million in cash consideration for the value of their options.
	Stock Options
	Stock-options granted under the 2012 Plan have a ten-year term. For stock options granted to employees, 40% generally vest based on the passage of time (service condition options), and 60% vest based on the passage of time and meeting certain shareholder return on investment conditions (market condition options). All stock options granted to independent directors vest based on the passage of time.
	Service condition options are valued using the Black-Scholes valuation model and vest over a five-year service period, with 20% generally vesting on either the first anniversary of the 2012 Change in Control Transaction or one year after the grant date, and 5% vesting each quarter thereafter. Compensation costs for the service condition awards are recognized straight line over the requisite service period for the entire award. Market condition options are valued using a risk-neutral Monte Carlo valuation model, with assumptions similar to those used to value the service condition awards, and vest over a five-year service period, contingent on meeting the market conditions.
	The assumptions used to value the service condition options and the weighted-average grant date fair value for the periods presented were as follows:
			TransUnion Holding Options							TransUnion Corp Options
			For the Year Ended December 31, 2013				From Date of Inception Through December 31, 2012			For the Four Months Ended April 30, 2012			For the Year Ended December 31, 2011
	Service condition options:
	Dividend yield		—				—			—			—
	Expected volatility		60%-70%				59		%	30		%	30		%
	Risk-free interest rate		0.86%-0.97%				0.89		%	2.4		%	2.40%-2.77%
	Expected life, in years		5.85-6.09				6.19			6.5			6.5
	Weighted-average grant date fair value		$	5.61			$	4.97		$	15.74		$	10.24
	Market condition options:
	Weighted-average grant date fair value		$	5.19			$	4.08		$	15.15		$	5.42
	The dividend yield was estimated to be zero because we do not expect to pay dividends in the future. The expected volatility was estimated based on comparable company volatility. The risk-free interest rate was derived from the constant maturity treasury curve for terms matching the expected life of the award. The expected life was calculated using the simplified method described in SAB No. 110 because we do not have sufficient historical data related to exercise behavior.
	In connection with a special dividend of $3.41 per common share paid on November 1, 2012, the Company’s compensation committee of the board of directors approved an equitable adjustment to reduce the exercise price of options outstanding at November 9, 2012, from $10.07 to $6.65 per share. Since the Company’s options do not contain mandatory anti-dilution provisions, the adjustment was treated as a modification of the options’ terms and conditions, resulting in $2.8 million of additional compensation expense that is being recognized over the remaining requisite service period as of the modification date.
	Stock option activity for the year ended December 31, 2013, consisted of the following:
	(in millions, except share and per share information)	Shares			Weighted				Weighted	Aggregate
					Average				Average	Intrinsic
					Exercise				Remaining	Value
					Price				Contractual	(in millions)
									Term
									(in years)
	Outstanding at December 31, 2012	6,532,809			$	6.65
	Granted	1,601,152			$	10.23
	Exercised	(97,356	)		$	6.65
	Forfeited	(929,688	)		$	6.65
	Expired	(528	)		$	6.65
	Outstanding at December 31, 2013	7,106,389			$	7.46			8.8	$	28.2
	Vested and expected to vest at December 31, 2013	6,597,718			$	7.46			8.8	$	26.2
	Exercisable at December 31, 2013	587,669			$	6.65			8.7	$	2.8
	As of December 31, 2013, stock-based compensation expense remaining to be recognized in future years related to options, excluding an estimate for forfeitures, was $11.7 million for service condition options and $15.5 million for market condition options, with weighted-average recognition periods of 3.9 years and 3.5 years, respectively. During 2013, cash received from the exercise of stock options was $0.4 million, with a tax benefit realized from these exercises of approximately $0.1 million.
	The intrinsic value of options exercised and the fair value of options vested for the periods presented are as follows:
			TransUnion Holding Options							TransUnion Corp Options
	(in millions)		For the Year Ended December 31, 2013				From Date of Inception Through December 31, 2012			For the Four Months Ended April 30, 2012			For the Year Ended December 31, 2011
	Intrinsic value of options exercised		$	0.3			$	—		$	—		$	0.1
	Total fair value of options vested		$	3.7			$	—		$	18.2		$	2.7
	For the four months ended April 30, 2012, the total fair value of options vested includes the fair value of options that vested in connection with the 2012 Change in Control Transaction.
	Stock appreciation rights
	During the year ended December 31, 2013 and from the date of inception through December 31, 2012, the Company granted 0.1 million and 0.9 million stock appreciation rights (“SARs”), with weighted-average exercise prices of and $9.52 and $6.65, respectively. The SARs have a ten-year term, with 40% vesting over a five-year service period and 60% vesting over a five-year service period contingent on meeting certain market conditions. The SARs provide for cash settlement and are being accounted for as liability awards, with expense recognized based on the awards fair value and the percentage of requisite service rendered at the end of each reporting period in accordance with ASC 718-30-30-3.
	In connection with a special dividend of $3.41 per common share paid on November 1, 2012, the Company’s compensation committee of the board of directors approved an equitable adjustment to reduce the exercise price of the SARs outstanding at November 9, 2012, from $10.07 to $6.65 per share.
	As of December 31, 2013, 0.1 million SARs had vested, 0.2 million SARs had been forfeited, and less than 0.1 million SARs had been exercised. During 2013, $0.1 million of share-based liabilities were paid for SARs that were exercised during the year. Stock-based compensation expense remaining to be recognized in future years related to SARs was $2.3 million based on the fair value of the awards at December 31, 2013.
	Restricted stock
	Restricted stock activity for the year ended December 31, 2013, consisted of the following:
		Shares			Weighted
					Average
					Grant Date
					Fair Value
	Nonvested at December 31, 2012	25,082			$	6.65
	Granted	—			—
	Vested	—			—
	Forfeited	—			—
	Nonvested at December 31, 2013	25,082			$	6.65
	During 2012, the Company granted 25,082 shares of restricted stock that cliff vest after three years under the 2012 Management Equity Plan. As of December 31, 2013, stock-based compensation expense remaining to be recognized in future years related to restricted stock was $0.2 million with a weighted-average recognition period of 2 years.
	In connection with a special dividend of $3.41 per common share paid on November 1, 2012, the grant date fair value of restricted stock issued was reset from $10.07 to to $6.65 per share.

Fair_Value

Fair Value	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Fair Value	'
	Fair Value
	Financial instruments measured at fair value on a recurring basis as of December 31, 2013, consisted of the following:
	(in millions)	Total			Level 1		Level 2			Level 3
	Trading securities	$	9.9		$	9.9	$	—		$	—
	Interest rate swaps	(1.0		)	—		(1.0		)	—
	Total financial instruments at fair value	$	8.9		$	9.9	$	(1.0	)	$	—
	Level 1 investments, which use quoted market prices in active markets for identical assets to establish fair value, consist of exchange-traded mutual funds and publicly traded equity investments valued at their current market prices. Level 1 investments consist of trading securities related to a nonqualified deferred compensation plan held in trust for the benefit of plan participants. Level 2 investments consist of interest rate swaps that are further discussed in Note 12, “Debt.” We determined the fair value of the interest rate swaps using standard valuation models with market-based observable inputs including forward and spot exchange rates and interest rate curves. At December 31, 2013, we did not have any investments valued using Level 3 inputs.
	On September 4, 2013, we acquired a 100% ownership interest in eScan, a healthcare service business. In connection with this acquisition, the company issued a contingent obligation to the sellers that is a Level 3 instrument. The obligation has a maximum payout of $17.0 million, contingent upon eScan meeting certain performance criteria in future years. We have recorded an estimate of $2.2 million in other liabilities for this contingency and expect to complete the valuation during 2014.

Operating_Segments

Operating Segments	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Operating Segments	'
	Operating Segments
	Operating segments are businesses for which separate financial information is available and evaluated regularly by the chief operating decision-maker in deciding how to allocate resources. This segment financial information is reported on the basis that is used for the internal evaluation of operating performance. The accounting policies of the segments are the same as described in Note 1, “Significant Accounting and Reporting Policies.”
	We evaluate the performance of segments based on revenue and operating income. Intersegment sales and transfers have been eliminated and were not material.
	The following is a more detailed description of the three operating segments and the Corporate unit, which provides support services to each operating segment:
	U.S. Information Services
	U.S. Information Services (“USIS”) provides credit reports, credit scores, verification services, analytical services, decisioning technology and other service to businesses in the United States through both direct and indirect channels. These services are offered to customers in the financial services, healthcare, insurance and other markets. These business customers use our products and services to acquire new customers, identify cross-selling opportunities, measure and manage debt portfolio risk, collect debt, and manage fraud. This segment also provides mandated consumer services, including dispute investigations, free annual credit reports and other requirements of the United States Fair Credit Reporting Act (“FCRA”), the Fair and Accurate Credit Transactions Act of 2003 (“FACTA”), and other credit-related legislation.
	International
	The International segment provides services similar to our USIS and Interactive segments to business customers outside the United States and automotive information and commercial data to customers in select geographies. Depending on the maturity of the credit economy in each location, services may include credit reports, analytical and decision services, and risk management services. These services are offered to customers in a number of industries, including financial services, insurance, automotive, collections and communications, and are delivered through both direct and indirect channels. The International segment also provides consumer services similar to those offered in our Interactive segment, such as credit reports, credit scores and credit monitoring services. The two market groups in the International segment are developed markets, which includes Canada, Hong Kong and Puerto Rico, and emerging markets, which includes South Africa, Mexico, Brazil, the Dominican Republic, India and other emerging markets.
	Interactive
	Interactive provides services to consumers, including credit reports, credit scores and credit and identity monitoring services, through both direct and indirect channels. The majority of revenue is derived from subscribers who pay a monthly fee for access to their credit report and score, and for alerts related to changes in their credit reports.
	Corporate
	Corporate provides shared services for the Company and conducts enterprise functions. Certain costs incurred in Corporate that are not directly attributable to one or more of the operating segments remain in Corporate. These costs are typically for enterprise-level functions and are primarily administrative in nature.
	Selected financial information consisted of the following:
		TransUnion Corp Successor									TransUnion Corp Predecessor
		Year Ended December 31,				Eight Months					Four Months			Year Ended
						Ended December 31,					Ended April, 30			December 31,
	(in millions)	2013				2012					2012			2011
	Revenue
	U.S. Information Services	$	740.6			$	487.4				$	238.1		$	660.1
	International	238.9				157.8					76.6			216.1
	Interactive	203.7				121.8					58.3			147.8
	Total	$	1,183.20			$	767				$	373		$	1,024.00
	Operating income (loss)
	U.S. Information Services	$	154.7			$	121.9				$	33.2		$	185.8
	International	19.5				19.1					5.3			66.7
	Interactive	65.6				48.7					13			56.5
	Corporate	(69.3		)		(47.6		)			(51.7		)	(56.3		)
	Total	$	170.5			$	142.1				$	(0.2	)	$	252.7
	Reconciliation of operating income (loss) to income from continuing operations before income tax:
	Operating income from segments	$	170.5			$	142.1				$	(0.2	)	$	252.7
	Non-operating income and expense	(98.6		)		(69.9		)			(63.7		)	(185.6		)
	Income (loss) from continuing operations before income tax	$	71.9			$	72.2				$	(63.9	)	$	67.1
	On a stand-alone non-consolidated basis, TransUnion Holding had no revenue, a $1.3 million operating loss, and $96.5 million of non-operating expenses for the twelve months ended December 31, 2013, and no revenue, a $0.9 million operating loss, and $68.6 million of non-operating expenses from the date of inception through December 31, 2012.
	Earnings from equity method investments, included in non-operating income and expense was as follows:
		TransUnion Corp									TransUnion Corp Predecessor
		Successor
		Year Ended December 31,				Eight Months					Four Months			Year Ended
						Ended December 31,					Ended April, 30			December 31,
	(in millions)	2013				2012					2012			2011
	U.S. Information Services	$	1.4			$	0.9				$	0.5		$	1.1
	International	12.3				7.1					3.6			10.3
	Interactive	—				—					—			—
	Total	$	13.7			$	8				$	4.1		$	11.4
	TransUnion Holding has no equity method investments other than the equity method investments owned by TransUnion Corp.
	Total assets, by segment, consisted of the following:
		TransUnion
		Corp
		Successor
	(in millions)	December 31,					December 31,
		2013					2012
	U.S. Information Services	$	2,894.70				$	2,685.30
	International	1,166.80					1,199.00
	Interactive	268.3					271.9
	Corporate	142					164.5
	Total	$	4,471.80				$	4,320.70
	On a stand-alone non-consolidated basis, TransUnion Holding had additional Corporate assets of $20.5 million and $58.1 million as of December 31, 2013 and December 31, 2012, respectively.
	Cash paid for capital expenditures, by segment, was as follows:
		TransUnion Corp									TransUnion Corp  Predecessor
		Successor
		Year Ended				Eight Months Ended					Four Months Ended
	(in millions)	31-Dec-13				31-Dec-12					30-Apr-12
	U.S. Information Services	$	46.9			$	30.8				$	14.3
	International	17.1				8.6					2.4
Interactive	3.9				2.8					1.3
Corporate	13.8				6.6					2.4
Total	$	81.7			$	48.8				$	20.4
TransUnion Holding had no capital expenditures other than the capital expenditures incurred by TransUnion Corp.
Depreciation and amortization expense of continuing operations, by segment, was as follows:
	TransUnion Corp									TransUnion Corp Predecessor
	Successor
	Year Ended December 31,				Eight Months					Four Months			Year Ended
					Ended December 31,					Ended April 30,			December 31,
(in millions)	2013				2012					2012			2011
U.S. Information Services	$	129.3			$	78.9				$	22.3		$	66.9
International	39.9				25.8					3.7			7.8
Interactive	8.9				5.2					1.3			4.3
Corporate	8.7				5.1					1.9			6.3
Total	$	186.8			$	115				$	29.2		$	85.3
TransUnion Holding had no depreciation and amortization expense other than the depreciation and amortization expense incurred by TransUnion Corp.
Revenue based on the country where it was earned, was a follows:
	TransUnion							TransUnion Corp Predecessor
	Corp Successor
	Year Ended December 31,			Eight Months				Four Months			Year Ended
				Ended December 31,				Ended April 30,			December 31,
(in millions)	2013			2012				2012			2011
United States	80	%		79	%			79	%		79	%
South Africa	6	%		7	%			8	%		9	%
Canada	5	%		5	%			6	%		6	%
Other	9	%		9	%			7	%		6	%
TransUnion Holding had no revenue other than the revenue earned by TransUnion Corp.
Long-lived assets, other than financial instruments and deferred tax assets, based on the location of the legal entity that owns the asset, was as follows:
	Percent of Long-Lived
	Assets
Country	2013			2012			2011
United States	85	%		81	%		80	%
South Africa	3	%		5	%		5	%
Canada	3	%		4	%		2	%
Other	9	%		10	%		13	%
TransUnion Holding owns no long-lived assets other than the long-lived assets owned by TransUnion Corp.

Commitments

Commitments	12 Months Ended
	Dec. 31, 2013
Commitments [Abstract]	'
Commitments	'
	Commitments
	Future minimum payments for noncancelable operating leases, purchase obligations and other liabilities of the Company in effect as of December 31, 2013, are payable as follows:
	(in millions)	Operating		Purchase		Total
		Leases		Obligations
	2014	$	11.3	$	174.8	$	186.1
	2015	8.7		29		37.7
	2016	7.1		14.2		21.3
	2017	5.9		8.5		14.4
	2018	5.5		5.9		11.4
	Thereafter	10.3		3.2		13.5
	Totals	$	48.8	$	235.6	$	284.4
	Purchase obligations include $100.3 million of trade accounts payable and a contingent obligation that were included on the balance sheet of TransUnion Holding as of December 31, 2013. Rental expense related to operating leases of TransUnion Holding and TransUnion Corp Successor was $11.0 million and $7.4 million for the year ended December 31, 2013 and the eight months ended December 31, 2012, respectively. Rental expense related to operating leases of TransUnion Corp Predecessor was $3.7 million and $13.8 million for the four months ended April 30, 2012, and the year ended December 31, 2011, respectively. TransUnion Holding had no operating leases other than the operating leases of TransUnion Corp.
	Licensing agreements
	We have agreements with Fair Isaac Corporation to license credit-scoring algorithms and the right to sell credit scores derived from those algorithms. Payment obligations under these agreements vary due to factors such as the volume of credit scores we sell, what type of credit scores we sell, and how our customers use the credit scores. There are no minimum payments required under these licensing agreements; however we do have a significant level of sales volume related to these credit scores.

Contingencies

Contingencies	12 Months Ended
	Dec. 31, 2013
Commitments and Contingencies Disclosure [Abstract]	'
Contingencies	'
	Contingencies
	Litigation
	Due to the nature of our businesses, claims against us will occur in the ordinary course of business. Some of these claims are, or purport to be, class actions that seek substantial damage amounts, including punitive damages. Claimants may seek modifications of business practices, financial incentives or replacement of products or services. We regularly review all claims to determine whether a loss is probable and, if probable, whether the loss can be reasonably estimated. If a loss is probable and can be reasonably estimated, an appropriate reserve is accrued, taking into consideration legal positions, contractual obligations and applicable insurance coverages, and included in other current liabilities. We believe that the reserves established for pending or threatened claims are appropriate based on the facts currently known. Due to the uncertainties inherent in the investigation and resolution of a claim, however, additional losses may be incurred that could materially affect our financial results. Legal fees for ongoing litigation are considered a period cost and are expensed as incurred.
	As of December 31, 2013 and 2012, TransUnion Corp had accrued $13.8 million and $5.6 million, respectively, for pending or anticipated claims of our continuing operations. These amounts were recorded in other accrued liabilities on the consolidated balance sheets and the associated expenses were recorded in selling, general and administrative expenses on the consolidated statements of income. TransUnion Holding had no litigation accruals or expense other than the accruals and expense of TransUnion Corp.

RelatedParty_Transactions

Related-Party Transactions	12 Months Ended
	Dec. 31, 2013
Related Party Transactions [Abstract]	'
Related-Party Transactions	'
	Related-Party Transactions
	Stockholder Agreement
	In connection with the 2012 Change in Control Transaction, TransUnion Holding, GSC and Advent entered into the Major Stockholders’ Agreement. Under the terms of the agreement, GSC and Advent have the right to appoint all members of TransUnion Holding’s board of directors.
	Consulting Agreement
	In connection with the 2012 Change in Control Transaction, TransUnion Holding, GSC and Advent entered into the Consulting Agreement. Under the terms of the agreement, GSC and Advent are to receive an advisory fee of $0.3 million each, increasing 5% annually, in exchange for services provided, including (i) general executive and management services; (ii) identification, support, negotiation and analysis of acquisitions and dispositions; (iii) support, negotiation and analysis of financing alternatives, including in connection with acquisitions, capital expenditures and refinancing of existing debt; (iv) finance functions, including assistance in the preparation of financial projections and monitoring of compliance with financing agreements; (v) human resources functions, including searching and recruiting of executives; and (vi) other services as mutually agreed upon. For the twelve months ended December 31, 2013 and from the date of inception through December 31, 2012, TransUnion Holding incurred fees from Advent totaling $0.3 million and $0.1 million , respectively. For the twelve months ended December 31, 2013 and from the date of inception through December 31, 2012, TransUnion Holding incurred fees from GSC totaling $0.3 million and $0.1 million, respectively.
	In connection with his resignation as President and Chief Executive Officer of the Company, TransUnion Holding and Siddharth N. (Bobby) Mehta, a director of the Company, entered into a Consulting Agreement, dated December 6, 2012, pursuant to which Mr. Mehta provides advice and consultation to assist Mr. Peck in the transition of duties as Chief Executive Officer and to Mr. Peck and the Board of Directors with respect to the Company's strategic operating plan and strategic opportunities or transactions considered by the Company from time to time. Pursuant to the terms of the agreement, Mr. Mehta receives a consulting services fee of $0.2 million on or before January 10 of each year during the term of the agreement. Either party may terminate the agreement by providing notice of non-renewal at least sixty (60) days prior to the end of the then-current term.
	Other Fees
	In connection with the 2012 Change in Control Transaction and the issuance of the 8.125% notes, in 2012 TransUnion Holding paid acquisition-related and underwriting fees of $11.9 million and $0.2 million to affiliates of GSC and Advent, respectively, and TransUnion Corp Predecessor paid $1.4 million of acquisition-related fees to affiliates of GSC.
	Legal Services
	TransUnion Corp Successor paid $0.5 million for the eight months ended December 31, 2012 and TransUnion Corp Predecessor paid $0.1 million and $1.3 million for the four months ended April 30, 2012, and the year ended December 31, 2011, respectively, to the law firm of Neal, Gerber & Eisenberg LLP for legal services. Marshall E. Eisenberg, a partner in the law firm, is a co-trustee of certain Pritzker family U.S. situs trusts that beneficially owned in excess of 5% of the Company’s common stock prior to the 2012 Change in Control Transaction.
	TransUnion Corp Successor paid $0.4 million for the eight months ended December 31, 2012 and TransUnion Corp Predecessor paid $3.5 million and $4.4 million for the four months ended April 30, 2012, and the year ended December 31, 2011, respectively, to the law firm of Latham and Watkins LLP. Michael A. Pucker, a partner in the law firm, is an immediate family member of a co-trustee of certain Pritzker family U.S. situs trusts that beneficially owned in excess of 5% of the Company’s common stock prior to the 2012 Change in Control Transaction.
	Payables
	Other liabilities of both TransUnion Holding and TransUnion Corp Successor at December 31, 2013, included $3.2 million owed to certain Pritzker family business interests related to tax indemnification payments arising in connection with the 2010 Change in Control Transaction. This amount is subject to future adjustments based on a final determination of tax expense.
	Issuances of Common Stock
	On August 30, 2013 the Company issued an aggregate of 87,566 shares of common stock to Christopher Cartwright , the Executive Vice President of our USIS segment, at a purchase price of $11.42 per share.
	On March 26, 2013 and on December 31, 2012, the Company issued an aggregate 26,326 and 199,237 shares of common stock, respectively, to James M. Peck, the President and Chief Executive Officer of the Company, at a purchase price of $6.65 per share.
	On December 21, 2012, the Company issued an aggregate of 225,563 shares of common stock to David M. Neenan, the Executive Vice President of our International segment, at a purchase price of $6.65 per share.
	Investment Purchase
	On October 14, 2013, the Company purchased an aggregate 33,410 shares of common stock from Jeff Hellinga, the former Executive Vice President of our USIS segment, at a purchase price of $11.42 per share, in connection with him leaving the Company.
	On August 28, 2013, the Company purchased an aggregate 76,213 shares of common stock from Mark Marinko, the former executive Vice President of our Interactive segment, at a purchase price of $11.42 per share, in connection with him leaving the Company.
	On January 7, 2013, the Company purchased an aggregate 297,955 shares of common stock from Siddharth N. (Bobby) Mehta, the former President and Chief Executive Office of the Company, at a purchase price of $6.65 per share, in connection with his resignation as President and Chief Executive Officer the Company.
	On August 27, 2012, the Company purchased an aggregate 69,625 shares of common stock from Andrew Knight, at that time the Executive Vice President of our International segment, at a purchase price of $10.07 per share, in connection with him leaving the Company.

Quarterly_Financial_Data_Unaud

Quarterly Financial Data (Unaudited)	12 Months Ended
	Dec. 31, 2013
Quarterly Financial Data [Abstract]	'
Quarterly Financial Data (Unaudited)	'
	Quarterly Financial Data (Unaudited)
	TransUnion Holding
	The quarterly financial data of TransUnion Holding, for 2013 and 2012 consisted of the following:
		Three Months Ended
	(in millions) (1)	March  31,			June 30,			September 30,			December 31,
		2013			2013			2013			2013
	Revenue	$	290.5		$	300.8		$	299.5		$	292.4
	Operating income	44.2			39.5			49.3			36.3
	Net income (loss)	(5.0		)	(6.1		)	(1.4		)	(15.7		)
	Net income (loss) attributable to TransUnion Holding	(6.3		)	(7.8		)	(3.4		)	(17.6		)
	-1	The sum of the quarterly totals may not equal the annual totals due to rounding.
		Three Months Ended
	(in millions)(1)	March  31,			June  30,			September 30,			December 31,
		2012(2)(3)			2012(3)			2012			2012
	Revenue	$	—		$	190.9		$	291.7		$	284.4
	Operating income	—			36.5			61.3			43.4
	Net income (loss)	(8.5		)	(2.3		)	13.5			(6.7		)
	Net income (loss) attributable to TransUnion Holding	(8.5		)	(3.5		)	11.3			(8.2		)
	(1)	The sum of the quarterly totals may not equal the annual totals due to rounding.
	(2)	Period is from inception of TransUnion Holding, February 15, 2012, through March 31, 2012.
	(3)	The financial results of TransUnion Holding include the consolidated results of TransUnion Corp subsequent to April 30, 2012, the date of acquisition. See Note 1, “Significant Accounting and Reporting Policies,” and Note 2, “Change in Control Transaction,” for further information. For the period of inception through March 31, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $7.0 million of acquisition fees related to the 2012 Change in Control Transaction. For the three months ended June 30, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $8.2 million of acquisition fees related to the 2012 Change in Control Transaction.
	TransUnion Corp
	The quarterly financial data of TransUnion Corp for 2013 and 2012 consisted of the following:
		Successor Three Months Ended
	(in millions) (1)	March  31,			June 30,			September 30,			December 31,
		2013			2013			2013			2013
	Revenue	$	290.5		$	300.8		$	299.5		$	292.4
	Operating income	44.5			39.8			49.7			36.5
	Net income (loss)	11.5			11.9			19.5			7.2
	Net income (loss) attributable to TransUnion Corp	10.2			10.2			17.5			5.3
	_____________________
	-1	The sum of the quarterly totals may not equal the annual totals due to rounding.
		Predecessor							Successor			Successor
		Three Months			One Month				Two Months			Three Months		Three Months
		Ended March 31,			Ended April 30,				Ended June 30,			Ended		Ended
												September 30,		December 31,
	(in millions)(1)	2012(2)			2012(2)				2012(2)			2012		2012
	Revenue	$	280.6		$	92.4			$	190.9		$	291.7	$	284.4
	Operating income (loss)	65.6			(65.8		)		37			61.6		43.6
	Net income (loss)	12.1			(64.5		)		10.8			23		14.1
	Net income (loss) attributable to TransUnion Corp	10.2			(65.1		)		9.6			20.8		12.6
	_____________________
	(1)	The sum of the quarterly totals may not equal the annual totals due to rounding.
	(2)	For the three months ended March 31, 2012, net income (loss) and net income (loss) attributable to TransUnion Corp included $2.6 million of acquisition fees related to the 2012 Change in Control Transaction. For the one month ended April 30, 2012, net income (loss) and net income (loss) attributable to TransUnion Corp included $18.3 million of acquisition fees related to the 2012 Change in Control Transaction. For the one month ended April 30, 2012, operating income (loss), net income (loss) and net income (loss) attributable to TransUnion Corp all included $90.0 million of accelerated stock-based compensation and related expense as a result of the 2012 Change in Control Transaction. For the two months ended June 30, 2012, operating income (loss), net income (loss) and net income (loss) attributable to TransUnion Corp all included $0.3 million of accelerated stock-based compensation and related expense as a result of the 2012 Change in Control Transaction.

Accumulated_Other_Comprehensiv

Accumulated Other Comprehensive Income (Loss)	12 Months Ended
	Dec. 31, 2013
Stockholders' Equity Note [Abstract]	'
Accumulated Other Comprehensive Income (Loss)	'
	Accumulated Other Comprehensive Income (Loss)
	The following table sets forth the changes in each component of accumulated other comprehensive income (loss), net of tax:
	(in millions)	Foreign			Net			Accumulated
		Currency			Unrealized			Other
		Translation			Gain/(Loss)			Comprehensive
		Adjustment			On Hedges			Income /
								(Loss)
	TransUnion Corp. Predecessor balance at December 31, 2011	$	(3.6	)	$	—		$	(3.6	)
	Change	2.2			—			2.2
	TransUnion Corp. Predecessor balance at April 30, 2012	$	(1.4	)	$	—		$	(1.4	)
	Purchase accounting adjustments	1.4			—			1.4
	Change	(20.7		)	(3.7		)	(24.4		)
	TransUnion Corp Successor and TransUnion Holding balance at December 31, 2012	$	(20.7	)	$	(3.7	)	$	(24.4	)
	Change	(51.9		)	$	3.1		(48.8		)
	TransUnion Corp Successor and TransUnion Holding balance at December 31, 2013	$	(72.6	)	$	(0.6	)	$	(73.2	)

Financial_Statements_of_Guaran

Financial Statements of Guarantors	12 Months Ended
	Dec. 31, 2013
Guarantees [Abstract]	'
Financial Statements of Guarantors	'
	Financial Statements of Guarantors
	As discussed in Note 12, “Debt,” the obligations under the 11.375% notes are unsecured obligations of Trans Union LLC and TransUnion Financing Corporation. However they are guaranteed by TransUnion Corp and certain wholly owned domestic subsidiaries of Trans Union LLC. TransUnion Holding does not guarantee the 11.375% notes. The guarantees of the guarantors are joint, several, full and unconditional. The accompanying consolidating financial information presents the financial position, results of operations and cash flows of the parent guarantor, the issuers, the guarantor subsidiaries as a group, and the non-guarantor subsidiaries as a group. Each entity’s investments in its subsidiaries, if any, are presented under the equity method. The domestic tax provision and related taxes receivable and payable, and the domestic deferred tax assets and liabilities, are prepared on a consolidated basis and are not fully allocated to individual legal entities. As a result, the information presented is not intended to present the financial position or results of operations of those entities on a stand-alone basis.
	TRANSUNION CORP. AND SUBSIDIARIES
	Consolidating Balance Sheet—Successor
	December 31, 2013
	(in millions)
		Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
		TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
		Corp			LLC and												Consolidated
					TransUnion
					Financing
					Corporation
	Assets
	Current assets:
	Cash and cash equivalents	$	19.3		$	—		$	—		$	91.9		$	—		$	111.2
	Trade accounts receivable, net	—			95.3			26.3			43.4			—			165
	Due from affiliates	—			—			—			58.3			(58.3		)	—
	Other current assets	36.9			37.8			1.2			5.1			—			81
	Total current assets	56.2			133.1			27.5			198.7			(58.3		)	357.2
	Property, plant and equipment, net	—			108.1			19.2			23.1			—			150.4
	Marketable securities	—			9.9			—			—			—			9.9
	Goodwill	—			1,145.60			262.1			502			—			1,909.70
	Other intangibles, net	—			1,537.40			213.6			183			—			1,934.00
	Other assets	1,615.50			1,084.10			34.4			51.9			(2,675.3		)	110.6
	Total assets	$	1,671.70		$	4,018.20		$	556.8		$	958.7		$	(2,733.6	)	$	4,471.80
	Liabilities and stockholders’ equity
	Current liabilities:
	Trade accounts payable	$	—		$	55.7		$	25.3		$	19.2		$	—		$	100.2
	Due to Affiliates	37.9			1.4			12						(51.3		)	—
	Current portion of long-term debt	—			12.8			1			7			(7.0		)	13.8
	Other current liabilities	62.7			70.6			8.4			26			—			167.7
	Total current liabilities	100.6			140.5			46.7			52.2			(58.3		)	281.7
	Long-term debt	—			1,852.80			2			6.5			(6.5		)	1,854.80
	Deferred taxes	(13.5		)	542.6			25.9			69			—			624
	Other liabilities	—			15.3			5.7			1.5			—			22.5
	Total liabilities	87.1			2,551.20			80.3			129.2			(64.8		)	2,783.00
	Redeemable noncontrolling interests	—			—			—			17.6			—			17.6
	Total TransUnion Corp stockholders’ equity	1,584.60			1,467.00			476.5			725.3			(2,668.8		)	1,584.60
	Noncontrolling interests	—			—			—			86.6			—			86.6
	Total stockholders’ equity	1,584.60			1,467.00			476.5			811.9			(2,668.8		)	1,671.20
	Total liabilities and stockholders’ equity	$	1,671.70		$	4,018.20		$	556.8		$	958.7		$	(2,733.6	)	$	4,471.80
	TRANSUNION CORP. AND SUBSIDIARIES
	Consolidating Balance Sheet—Successor
	December 31, 2012
	(in millions)
		Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
		TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
		Corp			LLC and												Consolidated
					TransUnion
					Financing
					Corporation
	Assets
	Current assets:
	Cash and cash equivalents	$	75.3		$	—		$	—		$	79		$	—		$	154.3
	Trade accounts receivable, net	—			98			19.5			46.1			—			163.6
	Due from affiliates	—			—			46.2			56.7			(102.9		)	—
	Other current assets	(0.3		)	52.7			(0.7		)	7			—			58.7
	Total current assets	75			150.7			65			188.8			(102.9		)	376.6
	Property, plant and equipment, net	—			95.8			7.8			17.6			—			121.2
	Marketable securities	—			11.4			—			—			—			11.4
	Goodwill	—			961.6			324.6			518			—			1,804.20
	Other intangibles, net	—			1,629.60			75.8			206.2			—			1,911.60
	Other assets	1,611.80			1,235.20			17.6			42.4			(2,811.3		)	95.7
Total assets	$	1,686.80		$	4,084.30		$	490.8		$	973		$	(2,914.2	)	$	4,320.70
Liabilities and stockholders’ equity
Current liabilities:
Trade accounts payable	$	—		$	43.2		$	18.9		$	15.4		$	—		$	77.5
Due to affiliates	14.9			82.5			—			—			(97.4		)	—
Current portion of long-term debt	—			9.5			—			6.6			(5.5		)	10.6
Other current liabilities	7.9			68.4			7.2			23.5			—			107
Total current liabilities	22.8			203.6			26.1			45.5			(102.9		)	195.1
Long-term debt	—			1,672.30			—			6.5			(6.5		)	1,672.30
Deferred taxes	(13.9		)	569.1			1.8			88.8			—			645.8
Other liabilities	—			20.5			0.2			0.9			—			21.6
Total liabilities	8.9			2,465.50			28.1			141.7			(109.4		)	2,534.80
Redeemable noncontrolling interests	—			—			—			14.7			—			14.7
Total TransUnion Corp stockholders’ equity	1,677.90			1,618.80			462.7			723.3			(2,804.8		)	1,677.90
Noncontrolling interests	—			—			—			93.3			—			93.3
Total stockholders’ equity	1,677.90			1,618.80			462.7			816.6			(2,804.8		)	1,771.20
Total liabilities and stockholders’ equity	$	1,686.80		$	4,084.30		$	490.8		$	973		$	(2,914.2	)	$	4,320.70
TRANSUNION CORP. AND SUBSIDIARIES
Consolidating Statement of Income—Successor
For the Year Ended December 31, 2013
(in millions)
	Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
	TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
	Corp			LLC and												Consolidated
				TransUnion
				Financing
				Corporation
Revenue	$	—		$	700.7		$	279.7		$	260.6		$	(57.8	)	$	1,183.20
Operating expenses
Cost of services	—			311.3			118.9			81.3			(39.1		)	472.4
Selling, general and administrative	—			208.7			81.6			83			(19.8		)	353.5
Depreciation and amortization	—			146.9			15.6			24.3			—			186.8
Total operating expenses	—			666.9			216.1			188.6			(58.9		)	1,012.70
Operating income	—			33.8			63.6			72			1.1			170.5
Non-operating income and expense
Interest expense	—			(101.3		)	0.1			(1.1		)	0.9			(101.4		)
Interest income	—			0.9			—			1.6			(0.8		)	1.7
Earnings from equity method investments	43.6			91.3			16.4			4.5			(142.1		)	13.7
Other income and (expense), net	(0.1		)	(3.8		)	(2.1		)	(5.4		)	(1.2		)	(12.6		)
Total non-operating income and expense	43.5			(12.9		)	14.4			(0.4		)	(143.2		)	(98.6		)
Income (loss) before income taxes	43.5			20.9			78			71.6			(142.1		)	71.9
(Provision) benefit for income taxes	(0.3		)	22.7			(28.6		)	(15.6		)	—			(21.8		)
Net income (loss)	43.2			43.6			49.4			56			(142.1		)	50.1
Less: net income attributable to noncontrolling interests	—			—			—			(6.9		)	—			(6.9		)
Net income (loss) attributable to TransUnion Corp	$	43.2		$	43.6		$	49.4		$	49.1		$	(142.1	)	$	43.2
TRANSUNION CORP. AND SUBSIDIARIES
Consolidating Statement of Comprehensive Income—Successor
For the Year Ended December 31, 2013
(in millions)
	Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
	TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
	Corp			LLC and												Consolidated
				TransUnion
				Financing
				Corporation
Net income (loss)	$	43.2		$	43.6		$	49.4		$	56		$	(142.1	)	$	50.1
Other comprehensive income (loss), net of tax
Foreign currency translation adjustment	(51.8		)	(51.8		)	—			(56.4		)	103.6			(56.4		)
Net unrealized loss on hedges	3			3			—			—			(3.0		)	3
Total other comprehensive income (loss), net of tax	(48.8		)	(48.8		)	—			(56.4		)	100.6			(53.4		)
Comprehensive income (loss)	(5.6		)	(5.2		)	49.4			(0.4		)	(41.5		)	(3.3		)
Less: comprehensive income attributable to noncontrolling interests	—			—			—			(2.3		)	—			(2.3		)
Comprehensive income (loss) attributable to TransUnion Corp	$	(5.6	)	$	(5.2	)	$	49.4		$	(2.7	)	$	(41.5	)	$	(5.6	)
TRANSUNION CORP. AND SUBSIDIARIES
Consolidating Statement of Income—Successor
For the Eight Months Ended December 31, 2012
(in millions)
	Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
	TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
	Corp			LLC and												Consolidated
				TransUnion
				Financing
				Corporation
Revenue	$	—		$	465.7		$	168.2		$	176.1		$	(43.0	)	$	767
Operating expenses
Cost of services	—			202.3			72.9			52.9			(29.9		)	298.2
Selling, general and administrative	—			135.5			39.3			50.9			(14.0		)	211.7
Depreciation and amortization	—			91.3			7.7			16			—			115
Total operating expenses	—			429.1			119.9			119.8			(43.9		)	624.9
Operating income	—			36.6			48.3			56.3			0.9			142.1
Non-operating income and expense
Interest expense	—			(73.1		)	—			0.1			0.2			(72.8		)
Interest income	—			0.2			—			0.8			(0.2		)	0.8
Earnings from equity method investments	61.5			59.3			—			2.7			(115.5		)	8
Other income and (expense), net	(0.3		)	1.4			—			(6.1		)	(0.9		)	(5.9		)
Total non-operating income and expense	61.2			(12.2		)	—			(2.5		)	(116.4		)	(69.9		)
Income (loss) before income taxes	61.2			24.4			48.3			53.8			(115.5		)	72.2
(Provision) benefit for income taxes	(18.2		)	37.1			(21.8		)	(21.4		)	—			(24.3		)
Net income (loss)	43			61.5			26.5			32.4			(115.5		)	47.9
Less: net income attributable to noncontrolling interests	—			—			—			(4.9		)	—			(4.9		)
Net income (loss) attributable to TransUnion Corp	$	43		$	61.5		$	26.5		$	27.5		$	(115.5	)	$	43
TRANSUNION CORP. AND SUBSIDIARIES
Consolidating Statement of Comprehensive Income—Successor
For the Eight Months Ended December 31, 2012
(in millions)
	Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
	TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
	Corp			LLC and												Consolidated
				TransUnion
				Financing
				Corporation
Net income (loss)	$	43		$	61.5		$	26.5		$	32.4		$	(115.5	)	$	47.9
Other comprehensive income (loss), net of tax
Foreign currency translation adjustment	(20.7		)	(20.7		)	—			(22.7		)	41.4			(22.7		)
Net unrealized loss on hedges	(3.7		)	(3.7		)	—			—			3.7			(3.7		)
Total other comprehensive income (loss), net of tax	(24.4		)	(24.4		)	—			(22.7		)	45.1			(26.4		)
Comprehensive income (loss)	18.6			37.1			26.5			9.7			(70.4		)	21.5
Less: comprehensive income attributable to noncontrolling interests	—			—			—			(2.9		)	—			(2.9		)
Comprehensive income (loss) attributable to TransUnion Corp	$	18.6		$	37.1		$	26.5		$	6.8		$	(70.4	)	$	18.6
TRANSUNION CORP. AND SUBSIDIARIES
Consolidating Statement of Income—Predecessor
For the Four Months Ended April 30, 2012
(in millions)
	Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
	TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
	Corp			LLC and												Consolidated
				TransUnion
				Financing
				Corporation
Revenue	$	—		$	228.7		$	82.5		$	84.6		$	(22.8	)	$	373
Operating expenses
Cost of services	—			122.6			36.1			29.6			(16.3		)	172
Selling, general and administrative	0.1			120			30.5			28.3			(6.9		)	172
Depreciation and amortization	—			19.8			5.9			3.5			—			29.2
Total operating expenses	0.1			262.4			72.5			61.4			(23.2		)	373.2
Operating income (loss)	(0.1		)	(33.7		)	10			23.2			0.4			(0.2		)
Non-operating income and expense
Interest expense	(0.3		)	(40.2		)	—			(0.3		)	0.3			(40.5		)
Interest income	0.3			0.3			—			0.3			(0.3		)	0.6
Earnings (loss) from equity method investments	(51.8		)	28.3			—			1.3			26.3			4.1
Other income and (expense), net	(20.9		)	(4.9		)	—			(1.7		)	(0.4		)	(27.9		)
Total non-operating income and expense	(72.7		)	(16.5		)	—			(0.4		)	25.9			(63.7		)
Income (loss) before income taxes	(72.8		)	(50.2		)	10			22.8			26.3			(63.9		)
(Provision) benefit for income taxes	17.9			(1.6		)	—			(4.8		)	—			11.5
Net income (loss)	(54.9		)	(51.8		)	10			18			26.3			(52.4		)
Less: net income attributable to noncontrolling interests	—			—			—			(2.5		)	—			(2.5		)
Net income (loss) attributable to TransUnion Corp	$	(54.9	)	$	(51.8	)	$	10		$	15.5		$	26.3		$	(54.9	)
TRANSUNION CORP. AND SUBSIDIARIES
Consolidating Statement of Comprehensive Income—Predecessor
For the Four Months Ended April 30, 2012
(in millions)
	Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
	TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
	Corp			LLC and												Consolidated
				TransUnion
				Financing
				Corporation
Net income (loss)	$	(54.9	)	$	(51.8	)	$	10		$	18		$	26.3		$	(52.4	)
Other comprehensive income (loss), net of tax
Foreign currency translation adjustment	2.2			2.2			—			2.5			(4.4		)	2.5
Total other comprehensive income (loss), net of tax	2.2			2.2			—			2.5			(4.4		)	2.5
Comprehensive income (loss)	(52.7		)	(49.6		)	10			20.5			21.9			(49.9		)
Less: comprehensive income attributable to noncontrolling interests	—			—			—			(2.8		)	—			(2.8		)
Comprehensive income (loss) attributable to TransUnion Corp	$	(52.7	)	$	(49.6	)	$	10		$	17.7		$	21.9		$	(52.7	)
TRANSUNION CORP. AND SUBSIDIARIES
Consolidating Statement of Income—Predecessor
For the Twelve Months Ended December 31, 2011
(in millions)
	Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
	TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
	Corp			LLC and												Consolidated
				TransUnion
				Financing
				Corporation
Revenue	$	—		$	637.3		$	209.4		$	238.4		$	(61.1	)	$	1,024.00
Operating expenses
Cost of services	—			295.1			88.3			79.5			(41.4		)	421.5
Selling, general and administrative	0.3			166.9			63			55.4			(21.1		)	264.5
Depreciation and amortization	—			60.9			17.1			7.3			—			85.3
Total operating expenses	0.3			522.9			168.4			142.2			(62.5		)	771.3
Operating income (loss)	(0.3		)	114.4			41			96.2			1.4			252.7
Non-operating income and expense
Interest expense	(1.3		)	(124.9		)	—			(0.2		)	—			(126.4		)
Interest income	—			0.1			—			0.6			—			0.7
Earnings from equity method investments	42.9			89.9			—			3.2			(124.6		)	11.4
Other income and (expense), net	—			(61.9		)	(0.1		)	(7.9		)	(1.4		)	(71.3		)
Total non-operating income and expense	41.6			(96.8		)	(0.1		)	(4.3		)	(126.0		)	(185.6		)
Income (loss) before income taxes	41.3			17.6			40.9			91.9			(124.6		)	67.1
Benefit (provision) for income taxes	(0.5		)	25.3			(20.9		)	(21.7		)	—			(17.8		)
Income (loss) from continuing operations	40.8			42.9			20			70.2			(124.6		)	49.3
Discontinued operations, net of tax	—			—			—			(0.5		)	—			(0.5		)
Net income (loss)	40.8			42.9			20			69.7			(124.6		)	48.8
Less: net income attributable to noncontrolling interests	—			—			—			(8.0		)	—			(8.0		)
Net income (loss) attributable to TransUnion Corp	$	40.8		$	42.9		$	20		$	61.7		$	(124.6	)	$	40.8
TRANSUNION CORP. AND SUBSIDIARIES
Consolidating Statement of Comprehensive Income—Predecessor
For the Twelve Months Ended December 31, 2011
(in millions)
	Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
	TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
	Corp			LLC and												Consolidated
				TransUnion
				Financing
				Corporation
Net income (loss)	$	40.8		$	42.9		$	20		$	69.7		$	(124.6	)	$	48.8
Other comprehensive income (loss), net of tax
Foreign currency translation adjustment	(12.9		)	(12.9		)	—			(14.5		)	25.8			(14.5		)
Total other comprehensive income (loss), net of tax	(12.9		)	(12.9		)	—			(14.5		)	25.8			(14.5		)
Comprehensive income (loss)	27.9			30			20			55.2			(98.8		)	34.3
Less: comprehensive income attributable to noncontrolling interests	—			—			—			(6.4		)	—			(6.4		)
Comprehensive income (loss) attributable to TransUnion Corp	$	27.9		30			$	20		$	48.8		$	(98.8	)	$	27.9
TRANSUNION CORP. AND SUBSIDIARIES
Consolidating Statement of Cash Flows—Successor
For the Twelve Months Ended December 31, 2013
(in millions)
	Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
	TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
	Corp			LLC and												Consolidated
				TransUnion
				Financing
				Corporation
Cash flows from operating activities:
Net income (loss)	$	43.2		$	43.6		$	49.4		$	56		$	(142.1	)	$	50.1
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	—			146.9			15.6			24.3			—			186.8
Stock-based compensation	—			5.9			0.2			0.1			—			6.2
Deferred financing fees	—			2.5			—			—			—			2.5
Provision (reduction) for losses on trade accounts receivable	—			0.3			(0.2		)	0.7			—			0.8
Deferred taxes	0.7			(13.0		)	4.8			(4.6		)	—			(12.1		)
Amortization of 11.375% notes purchase accounting fair value adjustment	—			(17.4		)	—			—			—			(17.4		)
Earnings from equity method investments, net of dividends	—			(1.5		)	—			(2.1		)	—			(3.6		)
Equity in net income from subsidiaries	(43.6		)	(82.1		)	(16.4		)	—			142.1			—
Dividends from subsidiaries	153.2			—			—			—			(153.2		)	—
(Gain) loss on sale or exchange of property	—			(0.8		)	(2.8		)	2.6			—			(1.0		)
Other	—			(1.1		)	—			0.2			—			(0.9		)
Changes in assets and liabilities:
Trade accounts receivable	—			2.4			(4.4		)	(1.1		)	—			(3.1		)
Other current and long-term assets	20.8			(75.7		)	56.5			(5.7		)	—			(4.1		)
Trade accounts payable	—			(2.4		)	5.6			2.9			—			6.1
Other current and long-term liabilities	17.3			4.1			2.1			5.3			—			28.8
Cash provided by (used in) operating activities	191.6			11.7			110.4			78.6			(153.2		)	239.1
TRANSUNION CORP. AND SUBSIDIARIES
Consolidating Statement of Cash Flows—Successor—Continued
For the Twelve Months Ended December 31, 2013
(in millions)
	Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
	TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
	Corp			LLC and												Consolidated
				TransUnion
				Financing
				Corporation
Cash flows from investing activities:
Capital expenditures for property and equipment	—			(55.4		)	(14.1		)	(12.2		)	—			(81.7		)
Investments in trading securities	—			(1.8		)	—			—			—			(1.8		)
Proceeds from sale of trading securities	—			4.4			—			—			—			4.4
Proceeds from sale of other assets	—			0.9			3.2			0.2			—			4.3
Acquisitions and purchases of noncontrolling interests, net of cash acquired	(152.4		)	—			(99.6		)	(30.3		)	—			(282.3		)
Acquisition related deposits	(1.0		)	—			—			(9.0		)	—			(10.0		)
Issuance of notes receivable	—			(32.0		)	—			—			32			—
Proceeds from notes receivable	—			30.5			—			—			(30.5		)	—
Other	—			—			0.1			—			—			0.1
Cash used in investing activities	(153.4		)	(53.4		)	(110.4		)	(51.3		)	1.5			(367.0		)
Cash flows from financing activities:
Proceeds from senior secured term loan	—			1,133.40			—			—			—			1,133.40
Extinguishment of senior secured term loan	—			(923.4		)	—			—			—			(923.4		)
Proceeds from revolving line of credit	—			65			—			—			—			65
Payment on revolving line of credit	—			(65.0		)	—			—			—			(65.0		)
Repayments of debt	—			(10.8		)	—			(31.6		)	30.5			(11.9		)
Debt financing fees	—			(4.3		)	—			—			—			(4.3		)
Distributions to noncontrolling interests	—			—			—			(8.0		)	—			(8.0		)
Dividends to Parent	(94.2		)	(153.2		)	—			—			153.2			(94.2		)
Proceeds from notes payable	—			—			—			32			(32.0		)	—
Cash provided by (used in) financing activities	(94.2		)	41.7			—			(7.6		)	151.7			91.6
Effect of exchange rate changes on cash and cash equivalents	—			—			—			(6.8		)	—			(6.8		)
Net change in cash and cash equivalents	(56.0		)	—			—			12.9			—			(43.1		)
Cash and cash equivalents, beginning of period	75.3			—			—			79			—			154.3
Cash and cash equivalents, end of period	$	19.3		$	—		$	—		$	91.9		$	—		$	111.2
TRANSUNION CORP. AND SUBSIDIARIES
Consolidating Statement of Cash Flows—Successor
For the Eight Months Ended December 31, 2012
(in millions)
	Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
	TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
	Corp			LLC and												Consolidated
				TransUnion
				Financing
				Corporation
Cash flows from operating activities:
Net income (loss)	$	43		$	61.5		$	26.5		$	32.4		$	(115.5	)	$	47.9
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	—			91.3			7.7			16			—			115
Stock-based compensation	—			2.2			0.1			—			—			2.3
Provision (reduction) for losses on trade accounts receivable	—			—			(2.1		)	0.2			—			(1.9		)
Change in control transaction fees	0.4			—			—			—			—			0.4
Deferred taxes	14.6			(12.1		)	5			4.3			—			11.8
Amortization of 11.375% notes purchase accounting fair value adjustment	—			(10.8		)	—			—			—			(10.8		)
Earnings from equity method investments, net of dividends	—			1.4			—			(0.1		)	—			1.3
Equity in net income from subsidiaries	(61.5		)	(54.0		)	—			—			115.5			—
Other	—			(0.5		)	—			3.1			—			2.6
Changes in assets and liabilities:
Trade accounts receivable	—			2.3			2.1			(5.4		)	—			(1.0		)
Other current and long-term assets	72			(27.4		)	(28.0		)	(13.8		)	—			2.8
Trade accounts payable	—			5.6			(3.4		)	(3.4		)	—			(1.2		)
Other current and long-term liabilities	(80.9		)	(1.1		)	(1.1		)	5.6			—			(77.5		)
Cash provided by (used in) operating activities	(12.4		)	58.4			6.8			38.9			—			91.7
TRANSUNION CORP. AND SUBSIDIARIES
Consolidating Statement of Cash Flows—Successor—Continued
For the Eight Months Ended December 31, 2012
(in millions)
	Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
	TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
	Corp			LLC and												Consolidated
				TransUnion
				Financing
				Corporation
Cash flows from investing activities:
Capital expenditures for property and equipment	—			(36.9		)	(6.9		)	(5.0		)	—			(48.8		)
Investments in trading securities	—			(0.5		)	—			—			—			(0.5		)
Acquisitions and purchases of noncontrolling interests, net of cash acquired	—			—			—			(14.2		)	—			(14.2		)
Acquisition related deposits	—			—			—			3.7			—			3.7
Proceeds from notes receivable	—			—			—			3.9			(3.9		)	—
Other	—			—			0.1			(1.5		)	—			(1.4		)
Cash used in investing activities	—			(37.4		)	(6.8		)	(13.1		)	(3.9		)	(61.2		)
Cash flows from financing activities:
Repayments of debt	—			(21.0		)	—			(0.1		)	3.9			(17.2		)
Change in control transaction fees	(0.4		)	—			—			—			—			(0.4		)
Distributions to noncontrolling interests	—			—			—			(7.2		)	—			(7.2		)
Dividends to TransUnion Holding	(27.9		)	—			—			—			—			(27.9		)
Stockholder contributions	80.8			—			—			—			—			80.8
Cash provided by (used in) financing activities	52.5			(21.0		)	—			(7.3		)	3.9			28.1
Effect of exchange rate changes on cash and cash equivalents	—			—			—			(0.7		)	—			(0.7		)
Net change in cash and cash equivalents	40.1			—			—			17.8			—			57.9
Cash and cash equivalents, beginning of period	35.2			—			—			61.2			—			96.4
Cash and cash equivalents, end of period	$	75.3		$	—		$	—		$	79		$	—		$	154.3
TRANSUNION CORP. AND SUBSIDIARIES
Consolidating Statement of Cash Flows—Predecessor
For the Four Months Ended April 30, 2012
(in millions)
	Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
	TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
	Corp			LLC and												Consolidated
				TransUnion
				Financing
				Corporation
Cash flows from operating activities:
Net income (loss)	$	(54.9	)	$	(51.8	)	$	10		$	18		$	26.3		$	(52.4	)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	—			19.8			5.9			3.5			—			29.2
Stock-based compensation	—			1.8			—			0.2			—			2
Deferred financing fees	—			3.9			—			—			—			3.9
Provision (reduction) for losses on trade accounts receivable	—			0.4			2.5			0.2			—			3.1
Change in control transaction fees	20.9			—			—			—			—			20.9
Deferred taxes	(17.6		)	—			—			(0.7		)	—			(18.3		)
Earnings from equity method investments, net of dividends	—			(2.4		)	—			(1.3		)	—			(3.7		)
Equity in net (income) loss from subsidiaries	51.8			(25.5		)	—			—			(26.3		)	—
Loss (gain) on sale or exchange of property	—			0.1			—			—			—			0.1
Other	(0.1		)	(0.6		)	—			(0.1		)	0.1			(0.7		)
Changes in assets and liabilities:
Trade accounts receivable	—			(11.3		)	(7.0		)	(6.4		)	—			(24.7		)
Other current and long-term assets	(34.3		)	47.9			(15.8		)	3.7			—			1.5
Trade accounts payable	(0.1		)	(5.8		)	6.2			1.3			—			1.6
Other current and long-term liabilities	69.1			20			2.7			(1.9		)	—			89.9
Cash provided by (used in) operating activities	34.8			(3.5		)	4.5			16.5			0.1			52.4
TRANSUNION CORP. AND SUBSIDIARIES
Consolidating Statement of Cash Flows—Predecessor—Continued
For the Four Months Ended April 30, 2012
(in millions)
	Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
	TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
	Corp			LLC and												Consolidated
				TransUnion
				Financing
				Corporation
Cash flows from investing activities:
Capital expenditures for property and equipment	—			(15.6		)	(3.6		)	(1.2		)	—			(20.4		)
Proceeds from sale of trading securities	—			1.1			—			—			—			1.1
Investments in trading securities	—			(1.1		)	—			—			—			(1.1		)
Acquisitions and purchases of noncontrolling interests, net of cash acquired	—			—			—			(0.1		)	—			(0.1		)
Proceeds from notes receivable	—			22.6			—			—			(22.6		)	—
Issuance of notes receivable	—			—			—			(4.1		)	4.1			—
Other	—			—			(0.1		)	1			—			0.9
Cash provided by (used in) investing activities	—			7			(3.7		)	(4.4		)	(18.5		)	(19.6		)
Cash flows from financing activities:
Repayments of debt	(10.3		)	(2.5		)	(0.9		)	(23.5		)	22.6			(14.6		)
Debt financing fees	—			(6.1		)	—			—			—			(6.1		)
Distribution of merger consideration	(1.3		)	—			—			—			—			(1.3		)
Change in control transaction fees	(20.9		)	—			—			—			—			(20.9		)
Proceeds from issuance of debt	—			4.1			—			—			(4.1		)	—
Treasury stock purchases	(1.3		)	—			—			—			—			(1.3		)
Dividends to noncontrolling interests	—			—			—			(0.4		)	—			(0.4		)
Other	(0.4		)	—			—			0.1			(0.1		)	(0.4		)
Cash provided by (used in) financing activities	(34.2		)	(4.5		)	(0.9		)	(23.8		)	18.4			(45.0		)
Effect of exchange rate changes on cash and cash equivalents	—			—			—			0.8			—			0.8
Net change in cash and cash equivalents	0.6			(1.0		)	(0.1		)	(10.9		)	—			(11.4		)
Cash and cash equivalents, beginning of period	34.6			1			0.1			72.1			—			107.8
Cash and cash equivalents, end of period	$	35.2		$	—		$	—		$	61.2		$	—		$	96.4
TRANSUNION CORP. AND SUBSIDIARIES
Consolidating Statement of Cash Flows—Predecessor
For the Twelve Months Ended December 31, 2011
(in millions)
	Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
	TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
	Corp			LLC and												Consolidated
				TransUnion
				Financing
				Corporation
Cash flows from operating activities:
Net income (loss)	$	40.8		$	42.9		$	20		$	69.7		$	(124.6	)	$	48.8
Less: income (loss) from discontinued operations, net of tax	—			—			—			(0.5		)	—			(0.5		)
Income (loss) from continuing operations	40.8			42.9			20			70.2			(124.6		)	49.3
Adjustments to reconcile income (loss) from continuing operations to net cash provided by (used in) operating activities:
Depreciation and amortization	—			60.9			17.1			7.3			—			85.3
Loss on early extinguishment of debt	—			59.3			—			—			—			59.3
Stock-based compensation	—			4.1			0.1			0.4			—			4.6
Deferred financing fees	—			4.2			—			—			—			4.2
Provision for losses on trade accounts receivable	—			1			0.3			0.6			—			1.9
Deferred taxes	(0.1		)	(4.6		)	1.1			0.1			—			(3.5		)
Earnings from equity method investments, net of dividends	—			(1.9		)	—			(1.5		)	—			(3.4		)
Loss (gain) on sale or exchange of property	—			—			(0.3		)	—			—			(0.3		)
Other	—			0.3			1.8			0.7			—			2.8
Equity in net income from subsidiaries	(42.9		)	(81.7		)	—			—			124.6			—
Changes in assets and liabilities:
Trade accounts receivable	—			(4.2		)	(2.8		)	(4.6		)	—			(11.6		)
Other current and long-term assets	(49.1		)	5.3			14			26.5			—			(3.3		)
Trade accounts payable	0.1			6.4			5.3			3.1			—			14.9
Other current and long-term liabilities	13.6			(14.1		)	—			4.8			—			4.3
Cash provided by (used in) operating activities of continuing operations	(37.6		)	77.9			56.6			107.6			—			204.5
Cash used in operating activities of discontinued operations	—			—			—			(1.3		)	—			(1.3		)
Cash provided by (used in) operating activities	(37.6		)	77.9			56.6			106.3			—			203.2
Cash flows from investing activities:
Capital expenditures for property and equipment	—			(60.0		)	(5.3		)	(8.7		)	—			(74.0		)
TRANSUNION CORP. AND SUBSIDIARIES
Consolidating Statement of Cash Flows—Predecessor—Continued
For the Twelve Months Ended December 31, 2011
(in millions)
	Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
	TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
	Corp			LLC and												Consolidated
				TransUnion
				Financing
				Corporation
Investments in trading securities	—			(1.2		)	—			—			—			(1.2		)
Proceeds from sale of trading securities	—			9.9			—			—			—			9.9
Proceeds from sale and redemption of investments in available-for-sale securities	—			—			0.2			—			—			0.2
Investments in held-to-maturity securities	—			—			—			(6.3		)	—			(6.3		)
Proceeds from held-to-maturity securities	—			—			—			6.3			—			6.3
Acquisitions and purchases of noncontrolling interests, net of cash acquired	—			—			(50.7		)	(54.5		)	—			(105.2		)
Acquisition related deposits	—			—			—			(8.6		)	—			(8.6		)
Other	—			(2.5		)	—			(0.2		)	—			(2.7		)
Cash used in investing activities	—			(53.8		)	(55.8		)	(72.0		)	—			(181.6		)
Cash flows from financing activities:
Proceeds from senior secured term loan	—			950			—			—			—			950
Extinguishment of senior secured term loan	—			(945.2		)	—			—			—			(945.2		)
Prepayment fee on early extinguishment of senior secured term loan	—			(9.5		)	—			—			—			(9.5		)
Repayments of debt	(3.9		)	(7.1		)	(0.7		)	—			—			(11.7		)
Treasury stock purchases	(0.2		)	—			—			—			—			(0.2		)
Distribution of merger consideration	(4.3		)	—			—			—			—			(4.3		)
Debt financing fees	—			(11.3		)	—			—			—			(11.3		)
Distributions to noncontrolling interests	—			—			—			(8.5		)	—			(8.5		)
Stockholder contribution	—			—			—			0.3			—			0.3
Other	(0.8		)	—			—			—			—			(0.8		)
Cash used in financing activities	(9.2		)	(23.1		)	(0.7		)	(8.2		)	—			(41.2		)
Effect of exchange rate changes on cash and cash equivalents	—			—			—			(3.8		)	—			(3.8		)
Net change in cash and cash equivalents	(46.8		)	1			0.1			22.3			—			(23.4		)
Cash and cash equivalents, beginning of period	81.4			—			—			49.8			—			131.2
Cash and cash equivalents, end of period	$	34.6		$	1		$	0.1		$	72.1		$	—		$	107.8

Condensed_Financial_Informatio

Condensed Financial Information of TransUnion Holding Company, Inc.	12 Months Ended
	Dec. 31, 2013
Condensed Financial Information of Parent Company Only Disclosure [Abstract]	'
Condensed Financial Information of TransUnion Holding Company, Inc.	'
	Schedule I—Condensed Financial Information of TransUnion Holding Company, Inc.
	TRANSUNION HOLDING COMPANY, INC.
	Parent Company Only
	Balance Sheet
	(in millions, except per share data)
		December 31,			December 31,
		2013			2012
	Assets
	Current assets:
	Due from TransUnion Corp	$	52.7		$	—
	Other current assets	7.5			5.7
	Total current assets	60.2			5.7
	Investment in TransUnion Corp	1,584.60			1,666.60
	Other assets	28.1			34.1
	Total assets	$	1,672.90		$	1,706.40
	Liabilities and stockholders’ equity
	Current liabilities:
	Trade accounts payable	$	0.2		$	0.9
	Other current liabilities	33.4			22.4
	Total current liabilities	33.6			23.3
	Long-term debt	998.3			998
	Other liabilities	13.1			0.1
	Total liabilities	1,045.00			1,021.40
	Stockholders’ equity:
	Common stock, $0.01 par value; 200.0 million shares authorized at December 31, 2013 and December 31, 2012, 110.7 million and 110.2 million shares issued as of December 31, 2013 and December 31, 2012, respectively; and 110.2 million and 110.1 million shares outstanding as of December 31, 2013 and December 31, 2012, respectively	1.1			1.1
	Additional paid-in capital	1,121.80			1,109.40
	Treasury stock at cost; 0.5 million and 0.1 million shares at December 31, 2013 and December 31, 2012, respectively	(4.1		)	(0.7		)
	Retained earnings (accumulated deficit)	(417.7		)	(400.4		)
	Accumulated other comprehensive income	(73.2		)	(24.4		)
	Total stockholders’ equity	627.9			685
	Total liabilities and stockholders’ equity	$	1,672.90		$	1,706.40
	See accompanying notes to condensed financial statements.
	Schedule I —Condensed Financial Information of TransUnion Holding Company, Inc.
	TRANSUNION HOLDING COMPANY, INC.
	Parent Company Only
	Statement of Income
	(in millions)
		Twelve Months Ended			From the Date
		December 31, 2013			of Inception
					Through
					December 31, 2012
	Revenue	$	—		$	—
	Operating expenses
	Selling, general and administrative	1.3			0.9
	Total operating expenses	1.3			0.9
	Operating income (loss)	(1.3		)	(0.9		)
	Non-operating income and expense
	Interest expense	(96.3		)	(52.2		)
	Equity Income from TransUnion Corp	43.2			43
	Other income and (expense), net	(0.2		)	(16.5		)
	Total non-operating income and expense	(53.3		)	(25.7		)
	Income (loss) from operations before income taxes	(54.6		)	(26.6		)
	Provision for income taxes	37.3			—
	Net loss	$	(17.3	)	$	(26.6	)
	See accompanying notes to condensed financial statements.
	Schedule I —Condensed Financial Information of TransUnion Holding Company, Inc.
	TRANSUNION HOLDING COMPANY, INC.
	Parent Company Only
	Statements of Comprehensive Income
	(in millions)
		Twelve Months Ended			From the Date
		31-Dec-13			of Inception
					Through December 31, 2012
Net loss	$	(17.3	)	$	(26.6	)
Other comprehensive loss, net of tax
Foreign currency translation adjustment	(51.8		)	(20.7		)
Net unrealized gain (loss) on hedges (net of tax at 36%)	3			(3.7		)
Total other comprehensive loss, net of tax	(48.8		)	(24.4		)
Comprehensive loss attributable to TransUnion Holding Company, Inc.	$	(66.1	)	$	(51.0	)
Schedule I —Condensed Financial Information of TransUnion Holding Company, Inc.
TRANSUNION HOLDING COMPANY, INC.
Parent Company Only
Statement of Cash Flows
(in millions)
	Twelve Months Ended			From the Date of
				Inception Through
	December 31, 2013			31-Dec-12
Cash used in operating activities	$	(1.5	)	$	(16.4	)
Cash flows from investing activities:
Acquisition of TransUnion Corp.	—			(1,582.3		)
Capital investment in TransUnion Corp.	—			(80.8		)
Cash used in investing activities	—			(1,663.1		)
Cash flows from financing activities:
Proceeds from 9.625% notes	—			600
Proceeds from 8.125% notes	—			398
Debt financing fees	(0.9		)	(41.3		)
Proceeds from issuance of common stock	5.8			1,097.30
Treasury stock purchases	(3.4		)	(0.7		)
Dividends	—			(373.8		)
Cash provided by financing activities	1.5			1,679.50
Net change in cash and cash equivalents	—			—
Cash and cash equivalents, beginning of period	—			—
Cash and cash equivalents, end of period	$	—		$	—
See accompanying notes to condensed financial statements.
Schedule I —Condensed Financial Information of TransUnion Holding Company, Inc.
TRANSUNION HOLDING COMPANY, INC.
Parent Company Only
Notes To Financial Statements
Note 1. Basis of Presentation
In the TransUnion Holding parent company only financial statements, the Company’s investment in subsidiaries is stated at cost plus equity in the undistributed earnings of subsidiaries since the date of acquisition. The Company’s share of net income of its subsidiaries is included in consolidated income using the equity method. The parent company only financial information should be read in conjunction with the Company’s consolidated financial statements.
Note 2. Income tax
TransUnion Holding entered into an intercompany tax allocation agreement with TransUnion Corp. in 2013, effective for all taxable periods from May 1, 2012, forward, in which they are members of the same consolidated federal or state tax groups. The agreement allocates the consolidated tax liability from those filings among the various members of the group.We recorded the cumulative effect of the intercompany tax allocation agreement to TransUnion Holding's balance sheet and statement of income during 2013.
Note 3. Dividends from subsidiaries
Cash dividends paid to TransUnion Holding from its consolidated subsidiaries were $94.2 million and $27.9 million for the year ended December 31, 2013 and from inception through December 31, 2012, respectively.

Valuation_and_Qualifying_Accou

Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2013
Valuation and Qualifying Accounts [Abstract]	'
Valuation and Qualifying Accounts	'
	Schedule II—Valuation and Qualifying Accounts
	TRANSUNION HOLDING COMPANY, INC.
	(in millions)	Balance at		Charged to			Charged to			Deductions(1)			Balance at
		Acquisition		Costs and			Other						End of
		Date		Expenses			Accounts						Year
	Allowance for doubtful accounts:
	Year ended December 31,
	2013	$	1.7	$	(0.8	)	$	—		$	(0.2	)	$	0.7
	2012	$	—	$	(1.9	)	$	3.7		$	(0.1	)	$	1.7
	Allowance for deferred tax assets(2):
	Year ended December 31,
	2013	$	27.2	$	4.8		$	—		$	(6.1	)	$	25.9
	2012	$	—	$	5		$	24.8		$	(2.6	)	$	27.2
	____________________
	(1)	For the allowance for doubtful accounts, includes write-offs of uncollectable accounts.
	Schedule II—Valuation and Qualifying Accounts
	TRANSUNION CORP.
	(in millions)	Balance at		Charged to			Charged to			Deductions(1)			Balance at
		Beginning		Costs and			Other						End of
		of Year		Expenses			Accounts						Year
	Allowance for doubtful accounts(2):
	Year ended December 31,
	2013	$	1.7	$	(0.8	)	$	—		$	(0.2	)	$	0.7
	2012	1.2		1.3			—			(0.8		)	1.7
	2011	$	1.7	$	1.9		$	(0.3	)	$	(2.1	)	$	1.2
	Allowance for deferred tax assets(2):
	Year ended December 31,
	2013	$	27.2	$	4.8		$	—		$	(6.1	)	$	25.9
	2012	16.9		15.6			7.4			(12.7		)	27.2
	2011	$	12.8	$	4.6		$	0.2		$	(0.7	)	$	16.9
	____________________
	(1)	For the allowance for doubtful accounts, includes write-offs of uncollectable accounts.
	(2)	Excludes discontinued operations.

Significant_Accounting_and_Rep1

Significant Accounting and Reporting Policies (Policies)	12 Months Ended
	Dec. 31, 2013
Accounting Policies [Abstract]	'
Description of Business	'
	Description of Business
	TransUnion develops, maintains and enhances a number of secured proprietary information databases to support its operations. These databases contain payment history, accounts receivable information, and other information such as bankruptcies, liens and judgments for consumers and businesses. We maintain reference databases of current consumer names, addresses and telephone numbers which are used for identity verification and fraud management solutions. We obtain this information from a variety of sources, including credit-granting institutions and public records. We build and maintain these databases using our proprietary information management systems, and make the data available to our customers through a variety of services. These services are offered to customers in a number of industries including financial services, insurance, collections and healthcare. We have operations in the United States, Africa, Canada and other international locations.
Basis of Presentation	'
	Basis of Presentation
	This Annual Report on Form 10-K is a combined report being filed separately by TransUnion Holding Company, Inc. ("TransUnion Holding") and TransUnion Corp., ("TransUnion Corp") a direct 100% owned subsidiary of TransUnion Holding. Substantially all of TransUnion Holding’s operations are conducted by TransUnion Corp. All of the significant accounting and reporting policies pertain to both TransUnion Holding and TransUnion Corp.
	Unless the context indicates otherwise, any reference in this report to "TransUnion," the “Company,” “we,” “us,” and “our” refers to TransUnion Holding with its direct and indirect subsidiaries, including TransUnion Corp, or to TransUnion Corp and its subsidiaries for periods prior to the forming of TransUnion Holding. Each registrant included herein is filing on its own behalf all of the information contained in this annual report that pertains to such registrant. When appropriate, TransUnion Holding and TransUnion Corp are named explicitly for their specific related disclosures. Each registrant included herein is not filing any information that does not relate to such registrant, and therefore makes no representation as to any such information.
	Where the information provided is substantially the same for each company, such information has been combined in this Annual Report on Form 10-K. Where information is not substantially the same for each company, we have provided separate information. In addition, separate financial statements for each company are included above.
2012 Change in Control Transaction	'
	2012 Change in Control Transaction
	TransUnion Holding was formed by affiliates of Advent International Corporation (“Advent”) and Goldman Sachs & Co. (“GSC”) on February 15, 2012 as a vehicle to acquire 100% of the outstanding common stock of TransUnion Corp. On April 30, 2012, pursuant to an Agreement and Plan of Merger, TransUnion Holding acquired TransUnion Corp. To partially fund the acquisition, TransUnion Holding issued $600.0 million aggregate principal amount of 9.625%/10.375% senior PIK toggle notes due 2018 (9.625% notes). We refer to these transactions collectively as the “2012 Change in Control Transaction.”
	The 2012 Change in Control Transaction was accounted for using the acquisition method of accounting in accordance with Accounting Standards Codification (“ASC”) 805, Business Combinations, with the basis of the assets acquired and liabilities assumed recorded at fair value to reflect the purchase price. Under the guidance provided by the Securities and Exchange Commission ("SEC") Staff Accounting Bulletin Topic 5J, “New Basis of Accounting Required in Certain Circumstances,” the fair value adjustments of the assets acquired and liabilities assumed have been pushed down and recorded on TransUnion Corp’s books.
	TransUnion Corp continues to operate as the same legal entity subsequent to the 2012 Change in Control Transaction. On TransUnion Corp’s financial statements, periods prior to May 1, 2012, reflect the financial position, results of operations, and changes in financial position of TransUnion Corp prior to the 2012 Change in Control Transaction (referred to herein as the “Predecessor”) and periods after April 30, 2012, reflect the financial position, results of operations, and changes in financial position of TransUnion Corp after the 2012 Change in Control Transaction (referred to herein as the “Successor”). Periods after the 2012 Change in Control Transaction are not comparable to prior periods due primarily to additional amortization of intangibles resulting from the fair value adjustments of the assets acquired and liabilities assumed.
	The accompanying consolidated financial statements of TransUnion Holding Company and Subsidiaries and of TransUnion Corp and Subsidiaries have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”). Our consolidated financial statements reflect all adjustments which, in the opinion of management, are necessary for a fair presentation of the periods presented. All significant intercompany transactions and balances have been eliminated.
Subsequent events	'
	Subsequent Events
	Events and transactions occurring through the date of issuance of the financial statements included in this annual report on Form 10-K have been evaluated by management, and when appropriate, recognized or disclosed in the financial statements.
Principles of consolidation	'
	Principles of Consolidation
	The consolidated financial statements of TransUnion Holding include the accounts of TransUnion Holding and its 100% owned subsidiary, TransUnion Corp. The consolidated financial statements of TransUnion Corp include the accounts of TransUnion Corp and all of its majority-owned or controlled subsidiaries. Investments in unconsolidated entities in which the Company has at least a 20% ownership interest, or where it is able to exercise significant influence, are accounted for using the equity method. Nonmarketable investments in unconsolidated entities in which the Company has less than a 20% ownership interest, or where it is not able to exercise significant influence, are accounted for using the cost method and periodically reviewed for impairment.
Use of Estimates	'
	Use of Estimates
	The preparation of consolidated financial statements and related disclosures in accordance with GAAP requires management to make estimates and judgments that affect the amounts reported. We believe that the estimates used in preparation of the accompanying consolidated financial statements are reasonable, based upon information available to management at this time. These estimates and judgments affect the reported amounts of assets, liabilities and disclosure of contingent assets and liabilities at the balance sheet date, as well as the amounts of revenue and expense during the reporting period. Estimates are inherently uncertain and actual results could differ materially from the estimated amounts.
Reclassification, Policy [Policy Text Block]	'
	Reclassifications
	We have broken out prior years' deferred tax liabilities on our balance sheets and earnings from equity method investments on our statements of income to conform to the current year's presentation.
Segments	'
	Segments
	We manage our business and report our financial results in three operating segments: U.S. Information Services (“USIS”); International; and Interactive. We also report expenses for Corporate, which provides support services to each operating segment. Details of our segment results are discussed in Note 16, “Operating Segments.”
Revenue Recognition and Deferred Revenue	'
	Revenue Recognition and Deferred Revenue
	Revenue is recognized when persuasive evidence of an arrangement exists, delivery has occurred or services have been rendered, the pricing is fixed or determinable and the collectability is reasonably assured. For multiple element arrangements, we separate deliverables into units of accounting and recognize revenue for each unit of accounting based on evidence of each unit’s relative selling price to the total arrangement consideration, assuming all other revenue recognition criteria have been met.
	A significant portion of our revenue is derived from providing information services to our customers. This revenue is recognized when services are provided, assuming all criteria for revenue recognition are met. A smaller portion of our revenue relates to subscription-based contracts where a customer pays a predetermined fee for a predetermined, or unlimited, number of transactions or services during the subscription period. Revenue related to subscription-based contracts having a preset number of transactions is recognized as the services are provided, using an effective transaction rate as the actual transactions are completed. Any remaining revenue related to unfulfilled units is not recognized until the end of the related contract’s subscription period. Revenue related to subscription-based contracts having an unlimited volume is recognized straight line over the contract term.
	Deferred revenue generally consists of amounts billed in excess of revenue recognized for the sale of data services, subscriptions and set up fees. Deferred revenue is included in other current liabilities.
Costs of Services	'
	Costs of Services
	Costs of services include data acquisition and royalty fees, personnel costs related to our databases and software applications, consumer and call center support costs, hardware and software maintenance costs, telecommunication expenses, research and development costs and occupancy costs associated with the facilities where these functions are performed. Research and development costs of TransUnion Holding and TransUnion Corp Successor for the year ended December 31, 2013, was $4.9 million. Research and development costs of TransUnion Holding from the date of inception through December 31, 2012, and for TransUnion Corp Successor for the eight months ended December 31, 2012, was $7.6 million. Research and development costs for TransUnion Corp Predecessor for the four months ended April 30, 2012, and the year ended December 31, 2011, were $3.7 million and $7.8 million, respectively.
Selling, General and Administrative Expenses	'
	Selling, General and Administrative Expenses
	Selling, general and administrative expenses include personnel-related costs for sales, administrative and management employees, costs for professional and consulting services, advertising and occupancy and facilities expense of these functions. Advertising costs are expensed as incurred. Advertising costs of TransUnion Holding and TransUnion Corp Successor for the year ended December 31, 2013, were $32.3 million. Advertising costs of TransUnion Holding from the date of inception through December 31, 2012, and for TransUnion Corp Successor for the eight months ended December 31, 2012, were $19.2 million. Advertising costs of TransUnion Corp Predecessor for the four months ended April 30, 2012, and the year ended December 31, 2011, were $15.5 million and $32.8 million, respectively.
Stock-Based Compensation	'
	Stock-Based Compensation
	Compensation expense for all stock-based compensation awards is determined using the grant date fair value and includes an estimate for expected forfeitures. Expense is recognized on a straight-line basis over the requisite service period of the award, which is generally equal to the vesting period. The details of our stock-based compensation program are discussed in Note 14, “Stock-Based Compensation.”
Income Taxes	'
	Income Taxes
	Deferred income tax assets and liabilities are determined based on the estimated future tax effects of temporary differences between the financial statement and tax basis of assets and liabilities, as measured by current enacted tax rates. The effect of a tax rate change on deferred tax assets and liabilities is recognized in operations in the period that includes the enactment date of the change. We periodically assess the recoverability of our deferred tax assets, and a valuation allowance is recorded against deferred tax assets if it is more likely than not that some portion of the deferred tax assets will not be realized. See Note 13, “Income Taxes,” for additional information.
Foreign Currency Translation	'
	Foreign Currency Translation
	The functional currency for each of our foreign subsidiaries is generally that subsidiary’s local currency. We translate the assets and liabilities of foreign subsidiaries at the year-end exchange rate, and translate revenues and expenses at the monthly average rates during the year. We record the resulting translation adjustment as a component of other comprehensive income in stockholders’ equity.
	Transaction gains and losses that arise from exchange rate fluctuations on transactions denominated in a currency other than the functional currency are included in the results of operations as incurred. The exchange rate loss of TransUnion Holding and TransUnion Corp Successor for the year ended December 31, 2013, was $0.8 million. The exchange rate gain of TransUnion Holding from the date of inception through December 31, 2012, and for TransUnion Corp Successor for the eight months ended December 31, 2012, was the less than $0.1 million. The exchange rate gain of TransUnion Corp Predecessor for the four months ended April 30, 2012, was $0.2 million and the exchange rate loss of TransUnion Corp Predecessor for the year ended December 31, 2011, was $2.8 million.
Cash and Cash Equivalents	'
	Cash and Cash Equivalents
	We consider investments in highly liquid debt instruments with original maturities of three months or less to be cash equivalents.
Trade Accounts Receivable	'
	Trade Accounts Receivable
	Trade accounts receivable are recorded at the invoiced amount and do not bear interest. The allowance for doubtful accounts is based on our historical write-off experience, analysis of the aging of outstanding receivables, customer payment patterns and the establishment of specific reserves for customers in adverse financial condition or for existing contractual disputes. Adjustments to the allowance are recorded as a bad debt expense in selling, general and administrative expenses. Trade receivables are written off against the allowance when they are determined to be no longer collectible. We reassess the adequacy of the allowance for doubtful accounts each reporting period.
Long-Lived Assets	'
	Long-Lived Assets
	Property, Plant, Equipment and Intangibles
	Property, plant and equipment was adjusted to fair value on the date of the 2012 Change in Control Transaction. All subsequent purchases of property, plant and equipment have been recorded at cost. Property, plant and equipment is depreciated primarily using the straight-line method over the estimated useful lives of the assets. Buildings and building improvements are generally depreciated over twenty years. Computer equipment and purchased software are depreciated over three to seven years. Leasehold improvements are depreciated over the shorter of the estimated useful life of the asset or the lease term. Other assets are depreciated over five to seven years. Intangibles, other than indefinite-lived intangibles, are amortized using the straight-line method over their economic life, generally three to forty years. Assets to be disposed of are separately presented in the consolidated balance sheet and reported at the lower of the carrying amount or fair value, less costs to sell, and are no longer depreciated. See Note 2, “Change in Control Transaction,” Note 5, “Property, Plant and Equipment,” and Note 7, “Purchased Intangible Assets,” for additional information about these assets.
	Internal Use Software
	We monitor the activities of each of our internal use software and system development projects and analyze the associated costs, making an appropriate distinction between costs to be expensed and costs to be capitalized. Costs incurred during the preliminary project stage are expensed as incurred. Many of the costs incurred during the application development stage are capitalized, including costs of software design and configuration, development of interfaces, coding, testing and installation of the software. Once the software is ready for its intended use, it is amortized on a straight-line basis over its useful life, generally three to seven years.
	Impairment of Long-Lived Assets
	We review long-lived assets that are subject to amortization for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to the estimated undiscounted future cash flows expected to be generated by the asset. If the carrying amount of an asset exceeds its estimated future cash flows, an impairment charge is recognized equal to the amount by which the carrying amount of the asset exceeds the fair value of the asset. During 2011, we recorded a $2.0 million impairment of software due to a regulatory change that requires a software platform change in our USIS segment. No significant impairment charges were recorded during 2013 or 2012.
Marketable Securities	'
	Marketable Securities
	We classify our investments in debt and equity securities in accordance with our intent and ability to hold the investments. Held-to-maturity securities are carried at amortized cost, which approximates fair value, and are classified as either short-term or long-term investments based on the contractual maturity date. Earnings from these securities are reported as a component of interest income. Available-for-sale securities are carried at fair market value, with the unrealized gains and losses, net of tax, included in accumulated other comprehensive income. Trading securities are carried at fair market value, with unrealized gains and losses included in income.
	At December 31, 2013 and 2012, all of the Company's Marketable Securities consisted of trading securities. These securities relate to a nonqualified deferred compensation plan held in trust for the benefit of plan participants. There were no significant realized or unrealized gains or losses for these securities for any of the periods presented. We follow the fair value guidance issued by the FASB to measure the fair value of our financial assets as further described in Note 15, "Fair Value."
	We periodically review our marketable securities to determine if there is an other-than-temporary impairment on any security. If it is determined that an other-than-temporary decline in value exists, we write down the investment to its market value and record the related impairment loss in other income.
Goodwill and Other Indefinite-Lived Intangibles	'
	Goodwill and Other Indefinite-Lived Intangibles
	Goodwill and other indefinite-lived intangible assets are allocated to various reporting units, which are an operating segment or one level below an operating segment. We test goodwill and indefinite-lived intangible assets for impairment on an annual basis, in the fourth quarter, or on an interim basis if an indicator of impairment is present. For goodwill, we compare the fair value of each reporting unit to its carrying amount to determine if there is potential goodwill impairment. If the fair value of a reporting unit is less than its carrying value, an impairment loss is recorded to the extent that the fair value of the goodwill within the reporting unit is less than the carrying value of its goodwill. For other indefinite-lived intangibles, we compare the fair value of the asset to its carrying value to determine if there is an impairment. If the fair value of the asset is less than its carrying value, an impairment loss is recorded. We use discounted cash flow techniques to determine the fair value of our reporting units and other indefinite-lived intangibles. See Note 6, “Goodwill,” and Note 7, “Purchased Intangible Assets,” for additional information about these assets.
Benefit Plans	'
	Benefit Plans
	We maintain a 401(k) defined contribution profit sharing plan for eligible employees. We provide a partial matching contribution and a discretionary contribution based on a fixed percentage of a participant’s eligible compensation.Contributions to this plan by TransUnion Holding and TransUnion Corp for the year ended December 31, 2013, were $12.4 million. Contributions to this plan by TransUnion Holding from the date of inception through December 31, 2012 and by TransUnion Corp Successor for the eight months ended December 31, 2012, were $6.9 million. Contributions to this plan by TransUnion Corp Predecessor for the four months ended April 30, 2012, and the year ended December 31, 2011, were $4.8 million and $10.1 million, respectively. We also maintain a nonqualified deferred compensation plan for certain key employees. The deferred compensation plan contains both employee deferred compensation and company contributions. These investments are held in the TransUnion Rabbi Trust, and are included in marketable securities on the balance sheet. The assets held in the Rabbi Trust are for the benefit of the participants in the deferred compensation plan, but are available to our general creditors in the case of our insolvency. The liability for amounts due to these participants is included in other current liabilities and other liabilities on the balance sheet.
Recently adopted accounting pronouncements	'
	Recently Adopted Accounting Pronouncements
	In February 2013, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update No. 2013-2 (“ASU 2013-2”) Reporting of Amounts Reclassified Out of Accumulated Other Comprehensive Income. ASU 2013-2 does not change the current requirements for reporting net income or other comprehensive income, however it increases disclosure requirements for amounts that are reclassified out of accumulated other comprehensive income into net income. ASU 2013-2 is effective for annual and interim periods beginning after December 15, 2012. This guidance was adopted by the Company effective January 1, 2013, and did not have a significant impact on the Company’s consolidated financial statements.
Recent Accounting Pronouncement not yet Adopted	'
	Recent Accounting Pronouncement Not Yet Adopted
	In July 2013, the FASB issued ASU No. 2013-11, Income Taxes (Topic 740): Presentation of an Unrecognized Tax Benefit When a Net Operating Loss Carryforward, a Similar Tax Loss, or a Tax Credit Carryforward Exist ("ASU 2013-11"). ASU 2013-11 provides guidance on the presentation of unrecognized tax benefits to better reflect the manner in which an entity would settle at the reporting date any income taxes that would result from the disallowance of a tax position when net operating loss carryforwards, similar tax losses or tax credit carryforwards exist. The objective of ASU 2013-11 is to eliminate the diversity in practice of how companies present unrecognized tax benefits under these circumstances. ASU 2013-11 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2013. We do not expect the requirements of ASU 2013-11 to have a significant impact on the Company's consolidated financial statements.

Change_in_Control_Transactions1

Change in Control Transactions (Tables)	12 Months Ended
	Dec. 31, 2013
Business Combinations [Abstract]	'
Allocation of purchase price value of the assets acquired and the liabilities assumed	'
	The allocation of the purchase price to the identifiable assets acquired and liabilities assumed as of April 30, 2012, consisted of the following:
	(in millions)	Fair Value
	Trade accounts receivable	$	162.4
	Property and equipment	112.9
	Identifiable intangible assets	1,986.40
	Goodwill(1)	1,794.80
	All other assets	302.3
	Total assets acquired	$	4,358.80
	Existing debt (including fair value adjustment)	(1,710.8		)
	All other liabilities	(945.4		)
	Noncontrolling interests	(109.9		)
	Net assets of acquired company	$	1,592.70
	(1)	For tax purposes, $128.8 million of goodwill is tax deductible.
Identifiable Intangible Assets	'
	The fair values of the intangible assets acquired consisted of the following:
	(in millions)	Fair Value			Estimated
					Useful Life
	Database and credit files	$	765		15 years
	Technology and software	364.6			7 years
	Trade names and trademarks	546.1			40 years
	Customer relationships	308			20 years
	Other	2.7			5 years
	Total identifiable intangible assets	$	1,986.40
	The preliminary fair value of the assets acquired and liabilities assumed as of December 31, 2013, consisted of the following:
	(in millions)	Fair Value
	Other current assets	$	0.3
	Property and equipment	10.6
	Identifiable intangible assets	88.4
	Goodwill(1)	58.9
	Total assets acquired	$	158.2
	Total liabilities assumed	(5.8		)
	Net assets of acquired company	$	152.4
	(1)	All of the goodwill is deductible for tax purposes.

Business_Acquisitions_Tables

Business Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2013
Business Acquisition [Line Items]	'
Fair Values of Intangible Assets	'
	The fair values of the intangible assets acquired consisted of the following:
	(in millions)	Fair Value			Estimated
					Useful Life
	Database and credit files	$	765		15 years
	Technology and software	364.6			7 years
	Trade names and trademarks	546.1			40 years
	Customer relationships	308			20 years
	Other	2.7			5 years
	Total identifiable intangible assets	$	1,986.40
	The preliminary fair value of the assets acquired and liabilities assumed as of December 31, 2013, consisted of the following:
	(in millions)	Fair Value
	Other current assets	$	0.3
	Property and equipment	10.6
	Identifiable intangible assets	88.4
	Goodwill(1)	58.9
	Total assets acquired	$	158.2
	Total liabilities assumed	(5.8		)
	Net assets of acquired company	$	152.4
	(1)	All of the goodwill is deductible for tax purposes.

Other_Current_Assets_Tables

Other Current Assets (Tables)	12 Months Ended
	Dec. 31, 2013
Other Current Assets [Line Items]	'
Other current assets	'
	Other current assets of TransUnion Holding consisted of the following:
	(in millions)	December 31,		December 31,
		2013		2012
	Deferred income tax assets	$	22.1	$	36.3
	Prepaid expenses	34.9		33.8
	Income taxes receivable	6.8		4.7
	Deferred financing fees	6.8		5.7
	Other	2.9		2.2
	Total other current assets	$	73.5	$	82.7
Transunion Corp [Member]	'
Other Current Assets [Line Items]	'
Other current assets	'
	Other current assets of TransUnion Corp Successor consisted of the following:
	(in millions)	December 31,		December 31,
		2013		2012
	Deferred income tax assets	$	37.1	$	18.9
	Prepaid expenses	34.9		33.8
	Income taxes receivable	5.7		3.8
	Deferred financing fees	0.4		—
	Other	2.9		2.2
	Total other current assets	$	81	$	58.7

Property_Plant_and_Equipment_T

Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2013
Property, Plant and Equipment [Abstract]	'
Property, plant and equipment	'
	Property, plant and equipment, including those acquired by capital lease, consisted of the following:
	(in millions)	December 31, 2013			December 31, 2012
	Computer equipment and furniture	$	107.8		$	75.5
	Building and building improvements	64.3			42.7
	Purchased software	45.3			26.2
	Land	3.2			3.2
	Total cost of property, plant and equipment	220.6			147.6
	Less: accumulated depreciation	(70.2		)	(26.4		)
	Total property, plant and equipment, net of accumulated depreciation	$	150.4		$	121.2

Goodwill_Tables

Goodwill (Tables)	12 Months Ended
	Dec. 31, 2013
Goodwill [Abstract]	'
Changes in the carrying amount of goodwill	'
	Goodwill allocated to our segments as of December 31, 2013, December 31, 2012, April 30, 2012, and December 31, 2011, and the changes in the carrying amount of goodwill during those periods consist of the following:
	(in millions)	USIS			International			Interactive			Total
	TransUnion Corp. Predecessor balance, December 31, 2011	$	147.5		$	81.8		$	45.9		$	275.2
	Acquisitions	—			0.8			—			0.8
	Tax deductible goodwill adjustment	—			(10.3		)	—			(10.3		)
	Foreign exchange rate adjustment	—			1.8			—			1.8
	TransUnion Corp. Predecessor balance, April 30, 2012	$	147.5		$	74.1		$	45.9		$	267.5
	Purchase accounting adjustments related to acquisition of TransUnion Corp.	987.8			455.3			90.9			1,534.00
	Acquisitions	—			9.9			—			9.9
	Tax deductible goodwill adjustment	—			6.7			—			6.7
	Additional purchase price related to acquisition of Brazil subsidiary	—			1.8			—			1.8
	Goodwill related to disposed equity method investment	—			(0.2		)	—			(0.2		)
	Foreign exchange rate adjustment	—			(15.5		)	—			(15.5		)
	TransUnion Holding and TransUnion Corp. Successor balance, December 31, 2012	$	1,135.30		$	532.1		$	136.8		$	1,804.20
	Purchase accounting adjustments	(4.7		)	(3.8		)	(0.6		)	(9.1		)
	Acquisitions	125.9			25.4			—			151.3
	Tax deductible goodwill adjustment	—			(2.1		)	—			(2.1		)
	Foreign exchange rate adjustment	—			(33.9		)	—			(33.9		)
	Sale of Africa subsidiary	—			(0.7		)	—			(0.7		)
	TransUnion Holding and TransUnion Corp. Successor balance, December 31, 2013	$	1,256.50		$	517		$	136.2		$	1,909.70

Intangible_Assets_Tables

Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2013
Intangible Assets, Net (Excluding Goodwill) [Abstract]	'
Intangible assets	'
	Intangible assets consisted of the following:
		31-Dec-13							31-Dec-12
	(in millions)	Gross		Accumulated			Net		Gross		Accumulated			Net
				Amortization							Amortization
	Database and credit files	$	761.8	$	(84.3	)	$	677.5	$	763.6	$	(33.9	)	$	729.7
	Internal use software	510.4		(94.7		)	415.7		380.3		(34.8		)	345.5
	Customer relationships	336.1		(25.8		)	310.3		306.7		(10.3		)	296.4
	Trademarks, copyrights and patents	550.7		(22.2		)	528.5		545.5		(7.4		)	538.1
	Noncompete and other agreements	2.5		(0.5		)	2		2.1		(0.2		)	1.9
	Total intangible assets	$	2,161.50	$	(227.5	)	$	1,934.00	$	1,998.20	$	(86.6	)	$	1,911.60
Estimated future amortization expense related to purchased intangible	'
	Estimated future amortization expense related to purchased intangible assets at December 31, 2013, is as follows:
	(in millions)	Annual
		Amortization
		Expense
	2014	$	155.5
	2015	154.8
	2016	148.7
	2017	143.2
	2018	141.3
	Thereafter	1,190.50
	Total future amortization expense	$	1,934.00

Other_Assets_Tables

Other Assets (Tables)	12 Months Ended
	Dec. 31, 2013
Other Assets [Line Items]	'
Other assets	'
	Other assets of TransUnion Holding consisted of the following:
	(in millions)	December 31,		December 31,
		2013		2012
	Investments in affiliated companies	$	92.4	$	88.6
	Deferred financing fees	29.7		34
	Deposits	15.8		6.3
	Other	0.7		0.9
	Total other assets	$	138.6	$	129.8
Transunion Corp [Member]	'
Other Assets [Line Items]	'
Other assets	'
	Other assets of TransUnion Corp Successor consisted of the following:
	(in millions)	December 31,		December 31,
		2013		2012
	Investments in affiliated companies	$	92.4	$	88.6
	Deposits	15.8		6.3
	Deferred financing fees	1.6		—
	Other	0.8		0.8
	Total other assets	$	110.6	$	95.7

Investment_in_Affiliated_Compa

Investment in Affiliated Companies (Tables)	12 Months Ended
	Dec. 31, 2013
Investments in Affiliated Companies [Abstract]	'
Summary of Investments in affiliated companies	'
	Investments in affiliated companies consisted of the following:
	(in millions)	December 31,			December 31,
		2013			2012
	Trans Union de Mexico, S.A. (25.69% ownership interest)	$	50		$	49.4
	Credit Information Bureau (India) Ltd. (27.5% ownership interest)	28.4			26.6
	All other equity method investments	6.1			4.7
	Total equity method investments	$	84.5		$	80.7
	Total cost method investments	7.9			7.9
	Total investments in affiliated companies	$	92.4		$	88.6
Schedule of equity investments income statement information	'
	Earnings from equity method investments, included in non-operating income and expense, and dividends received from equity method investments consisted of the following:
	(in millions)		TransUnion			TransUnion		TransUnion		TransUnion Corp		TransUnion Corp
			Holding and			Holding		Corp Successor		Predecessor		Predecessor
			TransUnion			From the Date of		Eight Months		Four Months		Year Ended
			Corp Successor			Inception through		Ended		Ended		31-Dec-11
			Year Ended December, 2013			31-Dec-12		31-Dec-12		April 30, 2012
	Earnings from equity method investments		$	13.7		$	8	$	8	$	4.1	$	11.4
	Dividends received from equity method investments		$	10.1		$	9.3	$	9.3	$	0.4	$	8
Significant equity method investments - summarized financial information balance sheet	'
	The summarized financial information and earnings from the significant equity method investments required by SEC Regulation S-X, Rule 1-02(bb)(i) and (ii) consisted of the following:
	(in millions)		31-Dec-13			31-Dec-12
	Current assets		$	62.6		$	61.4
	Noncurrent assets		$	19.8		$	22.1
	Current liabilities		$	22.4		$	23.2
	Noncurrent liabilities		$	1.4		$	1.3
Equity method investment summarized financial information	'
	(in millions)		Year Ended December 31, 2013			Eight Months Ended December 31, 2012		Four Months Ended April 30, 2012		Year Ended December 31, 2011
	Revenue		$	95.2		$	60.5	$	30.2	$	81.9
	Operating Income		$	47.6		$	27.3	$	13.4	$	41
	Income from continuing operations		$	39		$	22.3	$	11.1	$	33.1
	Net income		$	39		$	22.3	$	11.1	$	33.1

Other_Current_Liabilities_Tabl

Other Current Liabilities (Tables)	12 Months Ended
	Dec. 31, 2013
Other current liabilities	'
	Other current liabilities of TransUnion Holding consisted of the following:
	(in millions)	December 31,		December 31,
		2013		2012
	Accrued payroll	$	63.7	$	64.2
	Accrued interest	23.1		25.8
	Accrued litigation	13.8		5.6
	Accrued employee benefits	9.6		10.6
	Deferred revenue	9.1		12.5
	Other	14.2		10.6
	Total other current liabilities	$	133.5	$	129.3
Transunion Corp [Member]	'
Other current liabilities	'
	Other current liabilities of TransUnion Corp Successor consisted of the following:
	(in millions)	December 31,		December 31,
		2013		2012
	Accrued payroll	$	63.7	$	64.2
	Payable to TransUnion Holding	52.7		—
	Accrued litigation	13.8		5.6
	Accrued employee benefits	9.6		10.6
	Deferred revenue	9.1		12.5
	Accrued interest	4.9		3.7
	Other	13.9		10.4
	Total other current liabilities	$	167.7	$	107

Other_Liabilities_Tables

Other Liabilities (Tables)	12 Months Ended
	Dec. 31, 2013
Other Liabilities [Line Items]	'
Schedule of Other Non Current Liabilities	'
	Other liabilities of TransUnion Holding consisted of the following:
	(in millions)	December 31,		December 31,
		2013		2012
	Retirement benefits	$	10.4	$	10.6
	Unrecognized tax benefits	4.6		4.9
	Other	7.6		6.4
	Total other liabilities	$	22.6	$	21.9
Transunion Corp [Member]	'
Other Liabilities [Line Items]	'
Schedule of Other Non Current Liabilities	'
	Other liabilities of TransUnion Corp Successor consisted of the following:
	(in millions)	December 31,		December 31,
		2013		2012
	Retirement benefits	$	10.4	$	10.6
	Unrecognized tax benefits	4.5		4.8
	Other	7.6		6.2
	Total other liabilities	$	22.5	$	21.6

Debt_Tables

Debt (Tables)	12 Months Ended
	Dec. 31, 2013
Debt Instruments [Abstract]	'
Debt outstanding	'
	Debt outstanding consisted of the following:
		TransUnion Holding						TransUnion Corp Successor
	(in millions)	December 31,			December 31,			December 31,			December 31,
		2013			2012			2013			2012
	Senior secured term loan, payable in quarterly installments through February 10, 2019, including variable interest (4.25% at December 31, 2013) at LIBOR or alternate base rate, plus applicable margin, including original discount of $0.2 million at December 31, 2013	$	1,123.50		$	923.4		$	1,123.50		$	923.4
	Senior secured revolving line of credit, due on February 10, 2017, variable interest (4.63% weighted average at December 31, 2013) at LIBOR or alternate base rate, plus applicable margin	—			—			—			—
	Senior notes, principal due June 15, 2018, semi-annual interest payments, 11.375% fixed interest per annum, including unamortized fair value adjustment of $95.9 million and $113.4 million as of December 31, 2013 and 2012, respectively (11.375% notes)	740.9			758.4			740.9			758.4
	Senior unsecured PIK toggle notes, principal due June 15, 2018, semi-annual interest payments, 9.625% fixed interest per annum (9.625% notes)	600			600			—			—
	Senior unsecured PIK toggle notes, principal due June 15, 2018, semi-annual interest payments, 8.125% fixed interest per annum, including issuance discount of $1.7 million and $2.0 million at December 31, 2013 and 2012, respectively (8.125% notes)	398.3			398			—			—
	Note payable for 2011 acquisition, payable in annual installments through April 15, 2013, excluding imputed interest of 10.0%	—			0.9			—			0.9
	Capital lease obligations	4.2			0.2			4.2			0.2
	Total debt	$	2,866.90		$	2,680.90		$	1,868.60		$	1,682.90
	Less short-term debt and current maturities	(13.8		)	(10.6		)	(13.8		)	(10.6		)
	Total long-term debt	$	2,853.10		$	2,670.30		$	1,854.80		$	1,672.30
Scheduled future maturities	'
	Excluding potential additional principal payments due on the senior secured credit facility beginning in 2014 based on excess cash flows of the prior year, scheduled future maturities of total debt at December 31, 2013, was as follows:
	(in millions)	TransUnion			TransUnion
		Holding			Corp
					Successor
	2014	$	13.8		$	13.8
	2015	12.6			12.6
	2016	12.6			12.6
	2017	11.6			11.6
	2018	1,656.60			656.6
	Thereafter	1,065.30			1,065.30
	Unamortized premiums and discounts on notes	94.4			96.1
	Total	$	2,866.90		$	1,868.60
Interest expenses	'
	Interest expense for the periods presented consisted of the following:
		TransUnion			TransUnion			TransUnion			TransUnion			TransUnion
		Holding			Holding			Corp Successor			Corp Successor			Corp Predecessor			TransUnion
		Twelve Months Ended			Inception			Twelve			Eight			Four			Corp Predecessor
					Through			Months Ended			Months Ended			Months Ended			Twelve
																	Months Ended
	(in millions)	December 31,			December 31,			December 31,			December 31,			April 30,			December 31,
		2013			2012			2013			2012			2012			2011
	Senior secured term loan	$	44.2		$	35		$	44.2		$	35		$	15.6		$	49.9
	Senior secured revolving line of credit	0.7			—			0.7			—			—			—
	11.375% notes	55.9			38.1			55.9			38.1			25.1			75.1
	9.625% notes	62.2			46.7			—			—			—			—
	8.125 % notes	34.1			5.5			—			—			—			—
	Other	0.5			(0.3		)	0.6			(0.3		)	(0.2		)	1.4
	Total interest	$	197.6		$	125		$	101.4		$	72.8		$	40.5		$	126.4
Loan fees included in other income and expense	'
	Loan fees, included in other income and expense, for the periods presented consisted the following:
		TransUnion			TransUnion			TransUnion			TransUnion			TransUnion
		Holding			Holding			Corp Successor			Corp Successor			Corp Predecessor			TransUnion
		Twelve Months Ended			Inception			Twelve			Eight			Four			Corp Predecessor
					Through			Months Ended			Months Ended			Months Ended			Twelve
																	Months Ended
	(in millions)	December 31,			December 31,			December 31,			December 31,			April 30,			December 31,
		2013			2012			2013			2012			2012			2011
	Loss on early extinguishment of senior secured term loan	$	—		$	—		$	—		$	—		$	—		$	59.3
	Senior secured term loan	2.4			—			2.4			—			—			—
	Senior secured revolving line of credit	1.1			0.7			1.1			0.7			0.4			1.3
	9.625% notes	—			1			—			—			—			—
	Other	0.3			0.2			0.3			0.2			2.7			0.3
	Total loan fees	$	3.8		$	1.9		$	3.8		$	0.9		$	3.1		$	60.9

Income_Taxes_Tables

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2013
Income Tax Disclosure [Abstract]	'
Details of provision (benefit) for income taxes on income (loss) from continuing operations	'
	The provision (benefit) for income taxes on income (loss) from continuing operations consisted of the following:
		TransUnion							TransUnion Corp
		Holding
	(in millions)	Twelve Months Ended December 31, 2013			From Date of Inception Through December 31, 2012				Successor Twelve Months Ended December 31, 2013				Successor Eight Months Ended December 31, 2012					Predecessor Four Months Ended April 30,			Predecessor Twelve Months Ended December 31, 2011
																		2012
	Federal
	Current	$	0.1		$	0.1			$	15.3			$	—				$	1		$	(3.0	)
	Deferred	(15.5		)	(3.0		)		(13.3		)		13.2					(16.1		)	(1.3		)
	State
	Current	—			(0.5		)		0.2				0.4					0.1			1.6
	Deferred	(0.3		)	(0.3		)		1.6				0.4					(1.5		)	(1.4		)
	Foreign
	Current	18.4			12.1				18.4				12.1					5.7			22.7
	Deferred	(0.4		)	(1.8		)		(0.4		)		(1.8		)			(0.7		)	(0.8		)
	Total provision (benefit) for income taxes	$	2.3		$	6.6			$	21.8			$	24.3				$	(11.5	)	$	17.8
Summary of components of income (loss) from continuing operations before income taxes	'
	The components of income (loss) from continuing operations before income taxes consisted of the following:
		TransUnion							TransUnion Corp
		Holding
	(in millions)	Twelve Months Ended December 31, 2013			From Date of Inception Through December 31, 2012				Successor Twelve Months Ended December 31, 2013				Successor Eight Months Ended December 31, 2012					Predecessor Four Months Ended April 30,			Predecessor Twelve Months Ended December 31, 2011
																		2012
	Domestic	$	(72.9	)	$	(33.3	)		$	24.9			$	36.2				$	(79.5	)	$	0.2
	Foreign	47			36				47				36					15.6			66.9
	Total income (loss) from continuing operations before income taxes	$	(25.9	)	$	2.7			$	71.9			$	72.2				$	(63.9	)	$	67.1
Reconciliation of the U.S. federal statutory tax rate to our effective tax rate	'
	The effective income tax rate reconciliation consisted of the following:
		TransUnion Holding													TransUnion Corp Successor
	(in millions)	Twelve Months Ended December 31, 2013						From Date of Inception Through December 31, 2012							Twelve Months Ended December 31, 2013						Eight Months Ended December 31, 2012
	Income taxes at 35% statutory rate	$	(9.1	)	35	%		$	0.9			35	%		$	25.1			35	%	$	25.3		35	%
	Increase (decrease) resulting from:
	State taxes	(0.1		)	0.4	%		(0.9		)		(35.0	)%		1.6				2.2	%	0.7			1	%
	Foreign rate differential	(0.9		)	3.5	%		(4.0		)		(148.1	)%		(0.9		)		(1.3	)%	(4.0		)	(5.5	)%
	Change in control transaction expenses	—			—			1.8				66.7	%		—				—		0.2			0.3	%
	Application of ASC 740-30 to foreign earnings	15.1			(58.0	)%		4.3				159.2	%		(1.6		)		(2.3	)%	(1.9		)	(2.7	)%
	Impact of foreign dividends	(1.7		)	6.4	%		5				185.2	%		(1.7		)		(2.3	)%	4.9			6.8	%
	Other	(1.0		)	3.9	%		(0.5		)		(18.6	)%		(0.7		)		(1.0	)%	(0.9		)	(1.2	)%
	Total	$	2.3		(8.8	)%		$	6.6			244.4	%		$	21.8			30.3	%	$	24.3		33.7	%
		TransUnion Corp Predecessor
	(in millions)	Four Months Ended April 30, 2012						Twelve Months Ended December 31, 2011
	Income taxes at 35% statutory rate	$	(22.4	)	35	%		$	23.5			35	%
	Increase (decrease) resulting from:
	State taxes	(1.4		)	2.2	%		(0.4		)		(0.6	)%
	Foreign rate differential	(1.2		)	1.9	%		(3.9		)		(5.8	)%
	Change in control transaction expenses	2.7			(4.2	)%		(4.5		)		(6.7	)%
	Application of ASC 740-30 to foreign earnings	8.1			(12.7	)%		2.5				3.7	%
	Impact of foreign dividends	2			(3.1	)%		2				3	%
	Other	0.7			(1.1	)%		(1.4		)		(2.1	)%
	Total	$	(11.5	)	18	%		$	17.8			26.5	%
Components of net deferred income tax	'
	Components of net deferred income tax consisted of the following:
		TransUnion							TransUnion Corp
		Holding							Successor
	(in millions)	December 31,			December 31,				December 31,				December 31,
		2013			2012				2013				2012
	Deferred income tax assets:
	Compensation	$	6.8		$	4.7			$	6.8			$	4.7
	Employee benefits	6.3			6.3				6.3				6.3
	Legal reserves and settlements	3.5			1.9				3.5				1.9
	Hedge investments	0.4			2.2				0.4				2.2
	Financing related costs	39.4			46.4				39.4				46.4
	Loss and credit carryforwards	72.5			71				69.3				51.3
	Other	8.6			6.3				5.4				2.8
	Gross deferred income tax assets	$	137.5		$	138.8			$	131.1			$	115.6
	Valuation allowance	(25.9		)	(27.2		)		(25.9		)		(27.2		)
	Total deferred income tax assets, net	$	111.6		$	111.6			$	105.2			$	88.4
	Deferred income tax liabilities:
	Depreciation and amortization	$	(647.3	)	$	(662.1	)		$	(647.3	)		$	(662.1	)
	Investments in affiliated companies	(17.1		)	(17.1		)		(17.1		)		(17.1		)
	Taxes on undistributed foreign earnings	(57.1		)	(49.7		)		(22.9		)		(32.2		)
	Other	(4.9		)	(3.9		)		(4.8		)		(3.9		)
	Total deferred income tax liability	$	(726.4	)	$	(732.8	)		$	(692.1	)		$	(715.3	)
	Net deferred income tax liability	$	(614.8	)	$	(621.2	)		$	(586.9	)		$	(626.9	)
Total amount of unrecognized tax benefits	'
	The total amount of unrecognized tax benefits consisted of the following:
		TransUnion							TransUnion Corp
		Holding							Successor
	(in millions)	December 31,			December 31,				December 31,				December 31,
		2013			2012				2013				2012
	Balance as of beginning of period	$	4.9		$	3.2			$	4.8			$	3.2
	Additions for tax positions of prior years	—			0.2				—				0.2
	Reductions for tax positions of prior years	(0.1		)	—				(0.1		)		—
	Additions for tax positions of current year	—			1.7				—				1.6
	Reductions relating to settlement and lapse of statute	(0.2		)	(0.2		)		(0.2		)		(0.2		)
	Balance as of December 31	$	4.6		$	4.9			$	4.5			$	4.8

StockBased_Compensation_Tables

Stock-Based Compensation (Tables)	12 Months Ended
	Dec. 31, 2013
Share-based Compensation [Abstract]	'
Schedule of assumptions used to value the service condition options and the weighted-average grant date fair value	'
	The assumptions used to value the service condition options and the weighted-average grant date fair value for the periods presented were as follows:
			TransUnion Holding Options							TransUnion Corp Options
			For the Year Ended December 31, 2013				From Date of Inception Through December 31, 2012			For the Four Months Ended April 30, 2012			For the Year Ended December 31, 2011
	Service condition options:
	Dividend yield		—				—			—			—
	Expected volatility		60%-70%				59		%	30		%	30		%
	Risk-free interest rate		0.86%-0.97%				0.89		%	2.4		%	2.40%-2.77%
	Expected life, in years		5.85-6.09				6.19			6.5			6.5
	Weighted-average grant date fair value		$	5.61			$	4.97		$	15.74		$	10.24
	Market condition options:
	Weighted-average grant date fair value		$	5.19			$	4.08		$	15.15		$	5.42
Stock-Based compensation	'
	Stock-Based Compensation
	In connection with the 2012 Change in Control Transaction, the 2010 Management Equity Plan (the "2010 Plan") was cancelled and replaced with the TransUnion Holding Company, Inc. 2012 Management Equity Plan (the "2012 Plan") as approved by stockholders. Under the 2012 Plan, stock-based awards may be issued to executive officers, employees and independent directors of the Company. A total of 8.9 million shares have been authorized for grant under the 2012 Plan. As of December 31, 2012, 0.8 million shares remain available for future issuance under the 2012 plan.
	For the year ended December 31, 2013, and from the date of inception through December 31, 2012, TransUnion Holding recognized stock-based compensation of $6.9 million and $3.0 million, with related income tax benefits of approximately $2.5 million and $1.1 million, respectively. For the year ended December 31, 2013, and for the eight months ended December 31, 2012, TransUnion Corp Successor recognized $6.9 million and $2.6 million of stock-based compensation, with a related income tax benefit of approximately $2.5 million and $0.9 million, respectively. For the four months ended April 30, 2012 and the year ended December 31, 2011 TransUnion Corp Predecessor recognized $90.0 million and $4.6 million of stock-based compensation, with related income tax benefits of approximately $32.4 million and $1.7 million, respectively.
	In connection with the 2012 Change in Control Transaction, all outstanding awards under the 2010 Plan immediately vested and TransUnion Corp Predecessor recognized $88.0 million of additional stock-based compensation, with a related income tax benefit of approximately approximately $31.7 million. All options outstanding were then cancelled and existing option holders received $91.2 million in cash consideration for the value of their options.
	Stock Options
	Stock-options granted under the 2012 Plan have a ten-year term. For stock options granted to employees, 40% generally vest based on the passage of time (service condition options), and 60% vest based on the passage of time and meeting certain shareholder return on investment conditions (market condition options). All stock options granted to independent directors vest based on the passage of time.
	Service condition options are valued using the Black-Scholes valuation model and vest over a five-year service period, with 20% generally vesting on either the first anniversary of the 2012 Change in Control Transaction or one year after the grant date, and 5% vesting each quarter thereafter. Compensation costs for the service condition awards are recognized straight line over the requisite service period for the entire award. Market condition options are valued using a risk-neutral Monte Carlo valuation model, with assumptions similar to those used to value the service condition awards, and vest over a five-year service period, contingent on meeting the market conditions.
	The assumptions used to value the service condition options and the weighted-average grant date fair value for the periods presented were as follows:
			TransUnion Holding Options							TransUnion Corp Options
			For the Year Ended December 31, 2013				From Date of Inception Through December 31, 2012			For the Four Months Ended April 30, 2012			For the Year Ended December 31, 2011
	Service condition options:
	Dividend yield		—				—			—			—
	Expected volatility		60%-70%				59		%	30		%	30		%
	Risk-free interest rate		0.86%-0.97%				0.89		%	2.4		%	2.40%-2.77%
	Expected life, in years		5.85-6.09				6.19			6.5			6.5
	Weighted-average grant date fair value		$	5.61			$	4.97		$	15.74		$	10.24
	Market condition options:
	Weighted-average grant date fair value		$	5.19			$	4.08		$	15.15		$	5.42
	The dividend yield was estimated to be zero because we do not expect to pay dividends in the future. The expected volatility was estimated based on comparable company volatility. The risk-free interest rate was derived from the constant maturity treasury curve for terms matching the expected life of the award. The expected life was calculated using the simplified method described in SAB No. 110 because we do not have sufficient historical data related to exercise behavior.
	In connection with a special dividend of $3.41 per common share paid on November 1, 2012, the Company’s compensation committee of the board of directors approved an equitable adjustment to reduce the exercise price of options outstanding at November 9, 2012, from $10.07 to $6.65 per share. Since the Company’s options do not contain mandatory anti-dilution provisions, the adjustment was treated as a modification of the options’ terms and conditions, resulting in $2.8 million of additional compensation expense that is being recognized over the remaining requisite service period as of the modification date.
	Stock option activity for the year ended December 31, 2013, consisted of the following:
	(in millions, except share and per share information)	Shares			Weighted				Weighted	Aggregate
					Average				Average	Intrinsic
					Exercise				Remaining	Value
					Price				Contractual	(in millions)
									Term
									(in years)
	Outstanding at December 31, 2012	6,532,809			$	6.65
	Granted	1,601,152			$	10.23
	Exercised	(97,356	)		$	6.65
	Forfeited	(929,688	)		$	6.65
	Expired	(528	)		$	6.65
	Outstanding at December 31, 2013	7,106,389			$	7.46			8.8	$	28.2
	Vested and expected to vest at December 31, 2013	6,597,718			$	7.46			8.8	$	26.2
	Exercisable at December 31, 2013	587,669			$	6.65			8.7	$	2.8
	As of December 31, 2013, stock-based compensation expense remaining to be recognized in future years related to options, excluding an estimate for forfeitures, was $11.7 million for service condition options and $15.5 million for market condition options, with weighted-average recognition periods of 3.9 years and 3.5 years, respectively. During 2013, cash received from the exercise of stock options was $0.4 million, with a tax benefit realized from these exercises of approximately $0.1 million.
	The intrinsic value of options exercised and the fair value of options vested for the periods presented are as follows:
			TransUnion Holding Options							TransUnion Corp Options
	(in millions)		For the Year Ended December 31, 2013				From Date of Inception Through December 31, 2012			For the Four Months Ended April 30, 2012			For the Year Ended December 31, 2011
	Intrinsic value of options exercised		$	0.3			$	—		$	—		$	0.1
	Total fair value of options vested		$	3.7			$	—		$	18.2		$	2.7
	For the four months ended April 30, 2012, the total fair value of options vested includes the fair value of options that vested in connection with the 2012 Change in Control Transaction.
	Stock appreciation rights
	During the year ended December 31, 2013 and from the date of inception through December 31, 2012, the Company granted 0.1 million and 0.9 million stock appreciation rights (“SARs”), with weighted-average exercise prices of and $9.52 and $6.65, respectively. The SARs have a ten-year term, with 40% vesting over a five-year service period and 60% vesting over a five-year service period contingent on meeting certain market conditions. The SARs provide for cash settlement and are being accounted for as liability awards, with expense recognized based on the awards fair value and the percentage of requisite service rendered at the end of each reporting period in accordance with ASC 718-30-30-3.
	In connection with a special dividend of $3.41 per common share paid on November 1, 2012, the Company’s compensation committee of the board of directors approved an equitable adjustment to reduce the exercise price of the SARs outstanding at November 9, 2012, from $10.07 to $6.65 per share.
	As of December 31, 2013, 0.1 million SARs had vested, 0.2 million SARs had been forfeited, and less than 0.1 million SARs had been exercised. During 2013, $0.1 million of share-based liabilities were paid for SARs that were exercised during the year. Stock-based compensation expense remaining to be recognized in future years related to SARs was $2.3 million based on the fair value of the awards at December 31, 2013.
	Restricted stock
	Restricted stock activity for the year ended December 31, 2013, consisted of the following:
		Shares			Weighted
					Average
					Grant Date
					Fair Value
	Nonvested at December 31, 2012	25,082			$	6.65
	Granted	—			—
	Vested	—			—
	Forfeited	—			—
	Nonvested at December 31, 2013	25,082			$	6.65
	During 2012, the Company granted 25,082 shares of restricted stock that cliff vest after three years under the 2012 Management Equity Plan. As of December 31, 2013, stock-based compensation expense remaining to be recognized in future years related to restricted stock was $0.2 million with a weighted-average recognition period of 2 years.
	In connection with a special dividend of $3.41 per common share paid on November 1, 2012, the grant date fair value of restricted stock issued was reset from $10.07 to to $6.65 per share.
Stock options granted	'
	Stock option activity for the year ended December 31, 2013, consisted of the following:
	(in millions, except share and per share information)	Shares			Weighted				Weighted	Aggregate
					Average				Average	Intrinsic
					Exercise				Remaining	Value
					Price				Contractual	(in millions)
									Term
									(in years)
	Outstanding at December 31, 2012	6,532,809			$	6.65
	Granted	1,601,152			$	10.23
	Exercised	(97,356	)		$	6.65
	Forfeited	(929,688	)		$	6.65
	Expired	(528	)		$	6.65
	Outstanding at December 31, 2013	7,106,389			$	7.46			8.8	$	28.2
	Vested and expected to vest at December 31, 2013	6,597,718			$	7.46			8.8	$	26.2
	Exercisable at December 31, 2013	587,669			$	6.65			8.7	$	2.8
Intrinsic value of options exercised and fair value of options vested	'
	The intrinsic value of options exercised and the fair value of options vested for the periods presented are as follows:
			TransUnion Holding Options							TransUnion Corp Options
	(in millions)		For the Year Ended December 31, 2013				From Date of Inception Through December 31, 2012			For the Four Months Ended April 30, 2012			For the Year Ended December 31, 2011
	Intrinsic value of options exercised		$	0.3			$	—		$	—		$	0.1
	Total fair value of options vested		$	3.7			$	—		$	18.2		$	2.7
Restricted stock activity	'
	Restricted stock activity for the year ended December 31, 2013, consisted of the following:
		Shares			Weighted
					Average
					Grant Date
					Fair Value
	Nonvested at December 31, 2012	25,082			$	6.65
	Granted	—			—
	Vested	—			—
	Forfeited	—			—
	Nonvested at December 31, 2013	25,082			$	6.65

Fair_Value_Tables

Fair Value (Tables)	12 Months Ended
	Dec. 31, 2013
Fair Value Disclosures [Abstract]	'
Financial instruments measured at fair value, on a recurring basis	'
	Financial instruments measured at fair value on a recurring basis as of December 31, 2013, consisted of the following:
	(in millions)	Total			Level 1		Level 2			Level 3
	Trading securities	$	9.9		$	9.9	$	—		$	—
	Interest rate swaps	(1.0		)	—		(1.0		)	—
	Total financial instruments at fair value	$	8.9		$	9.9	$	(1.0	)	$	—

Operating_Segments_Tables

Operating Segments (Tables)	12 Months Ended
	Dec. 31, 2013
Segment Reporting [Abstract]	'
Schedule of segment reporting information, by segment	'
	Selected financial information consisted of the following:
		TransUnion Corp Successor									TransUnion Corp Predecessor
		Year Ended December 31,				Eight Months					Four Months			Year Ended
						Ended December 31,					Ended April, 30			December 31,
	(in millions)	2013				2012					2012			2011
	Revenue
	U.S. Information Services	$	740.6			$	487.4				$	238.1		$	660.1
	International	238.9				157.8					76.6			216.1
	Interactive	203.7				121.8					58.3			147.8
	Total	$	1,183.20			$	767				$	373		$	1,024.00
	Operating income (loss)
	U.S. Information Services	$	154.7			$	121.9				$	33.2		$	185.8
	International	19.5				19.1					5.3			66.7
	Interactive	65.6				48.7					13			56.5
	Corporate	(69.3		)		(47.6		)			(51.7		)	(56.3		)
	Total	$	170.5			$	142.1				$	(0.2	)	$	252.7
	Reconciliation of operating income (loss) to income from continuing operations before income tax:
	Operating income from segments	$	170.5			$	142.1				$	(0.2	)	$	252.7
	Non-operating income and expense	(98.6		)		(69.9		)			(63.7		)	(185.6		)
	Income (loss) from continuing operations before income tax	$	71.9			$	72.2				$	(63.9	)	$	67.1
Other income and expense, net, included earnings (losses) from equity method investments	'
	Earnings from equity method investments, included in non-operating income and expense was as follows:
		TransUnion Corp									TransUnion Corp Predecessor
		Successor
		Year Ended December 31,				Eight Months					Four Months			Year Ended
						Ended December 31,					Ended April, 30			December 31,
	(in millions)	2013				2012					2012			2011
	U.S. Information Services	$	1.4			$	0.9				$	0.5		$	1.1
	International	12.3				7.1					3.6			10.3
	Interactive	—				—					—			—
	Total	$	13.7			$	8				$	4.1		$	11.4
Property, plant and equipment, net of accumulated depreciation and amortization, by segment	'
	Total assets, by segment, consisted of the following:
		TransUnion
		Corp
		Successor
	(in millions)	December 31,					December 31,
		2013					2012
	U.S. Information Services	$	2,894.70				$	2,685.30
	International	1,166.80					1,199.00
	Interactive	268.3					271.9
	Corporate	142					164.5
	Total	$	4,471.80				$	4,320.70
Cash paid for capital expenditures, by segment	'
	Cash paid for capital expenditures, by segment, was as follows:
		TransUnion Corp									TransUnion Corp  Predecessor
		Successor
		Year Ended				Eight Months Ended					Four Months Ended
	(in millions)	31-Dec-13				31-Dec-12					30-Apr-12
	U.S. Information Services	$	46.9			$	30.8				$	14.3
	International	17.1				8.6					2.4
	Interactive	3.9				2.8					1.3
	Corporate	13.8				6.6					2.4
	Total	$	81.7			$	48.8				$	20.4
Depreciation and amortization expense of continuing operations, by segment	'
	Depreciation and amortization expense of continuing operations, by segment, was as follows:
		TransUnion Corp									TransUnion Corp Predecessor
		Successor
		Year Ended December 31,				Eight Months					Four Months			Year Ended
						Ended December 31,					Ended April 30,			December 31,
	(in millions)	2013				2012					2012			2011
	U.S. Information Services	$	129.3			$	78.9				$	22.3		$	66.9
	International	39.9				25.8					3.7			7.8
	Interactive	8.9				5.2					1.3			4.3
	Corporate	8.7				5.1					1.9			6.3
	Total	$	186.8			$	115				$	29.2		$	85.3
Revenue based on the country	'
	Revenue based on the country where it was earned, was a follows:
		TransUnion							TransUnion Corp Predecessor
		Corp Successor
		Year Ended December 31,			Eight Months				Four Months			Year Ended
					Ended December 31,				Ended April 30,			December 31,
	(in millions)	2013			2012				2012			2011
	United States	80	%		79	%			79	%		79	%
	South Africa	6	%		7	%			8	%		9	%
	Canada	5	%		5	%			6	%		6	%
	Other	9	%		9	%			7	%		6	%
Long-lived assets, other than financial instruments and deferred tax assets, based on the location of the legal entity that owns the asset	'
	Long-lived assets, other than financial instruments and deferred tax assets, based on the location of the legal entity that owns the asset, was as follows:
		Percent of Long-Lived
		Assets
	Country	2013			2012			2011
	United States	85	%		81	%		80	%
	South Africa	3	%		5	%		5	%
	Canada	3	%		4	%		2	%
	Other	9	%		10	%		13	%

Commitments_Tables

Commitments (Tables)	12 Months Ended
	Dec. 31, 2013
Commitments [Abstract]	'
Summary of future minimum payments for noncancelable operating leases, purchase obligations and other liabilities	'
	Future minimum payments for noncancelable operating leases, purchase obligations and other liabilities of the Company in effect as of December 31, 2013, are payable as follows:
	(in millions)	Operating		Purchase		Total
		Leases		Obligations
	2014	$	11.3	$	174.8	$	186.1
	2015	8.7		29		37.7
	2016	7.1		14.2		21.3
	2017	5.9		8.5		14.4
	2018	5.5		5.9		11.4
	Thereafter	10.3		3.2		13.5
	Totals	$	48.8	$	235.6	$	284.4

Quarterly_Financial_Data_Unaud1

Quarterly Financial Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2013
Interim Period, Costs Not Allocable [Line Items]	'
Summary of quarterly financial data	'
	The quarterly financial data of TransUnion Holding, for 2013 and 2012 consisted of the following:
		Three Months Ended
	(in millions) (1)	March  31,			June 30,			September 30,			December 31,
		2013			2013			2013			2013
	Revenue	$	290.5		$	300.8		$	299.5		$	292.4
	Operating income	44.2			39.5			49.3			36.3
	Net income (loss)	(5.0		)	(6.1		)	(1.4		)	(15.7		)
	Net income (loss) attributable to TransUnion Holding	(6.3		)	(7.8		)	(3.4		)	(17.6		)
	-1	The sum of the quarterly totals may not equal the annual totals due to rounding.
		Three Months Ended
	(in millions)(1)	March  31,			June  30,			September 30,			December 31,
		2012(2)(3)			2012(3)			2012			2012
	Revenue	$	—		$	190.9		$	291.7		$	284.4
	Operating income	—			36.5			61.3			43.4
	Net income (loss)	(8.5		)	(2.3		)	13.5			(6.7		)
	Net income (loss) attributable to TransUnion Holding	(8.5		)	(3.5		)	11.3			(8.2		)
	(1)	The sum of the quarterly totals may not equal the annual totals due to rounding.
	(2)	Period is from inception of TransUnion Holding, February 15, 2012, through March 31, 2012.
	(3)	The financial results of TransUnion Holding include the consolidated results of TransUnion Corp subsequent to April 30, 2012, the date of acquisition. See Note 1, “Significant Accounting and Reporting Policies,” and Note 2, “Change in Control Transaction,” for further information. For the period of inception through March 31, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $7.0 million of acquisition fees related to the 2012 Change in Control Transaction. For the three months ended June 30, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $8.2 million of acquisition fees related to the 2012 Change in Control Transaction.
Transunion Corp [Member]	'
Interim Period, Costs Not Allocable [Line Items]	'
Summary of quarterly financial data	'
	The quarterly financial data of TransUnion Corp for 2013 and 2012 consisted of the following:
		Successor Three Months Ended
	(in millions) (1)	March  31,			June 30,			September 30,			December 31,
		2013			2013			2013			2013
	Revenue	$	290.5		$	300.8		$	299.5		$	292.4
	Operating income	44.5			39.8			49.7			36.5
	Net income (loss)	11.5			11.9			19.5			7.2
	Net income (loss) attributable to TransUnion Corp	10.2			10.2			17.5			5.3
	_____________________
	-1	The sum of the quarterly totals may not equal the annual totals due to rounding.
		Predecessor							Successor			Successor
		Three Months			One Month				Two Months			Three Months		Three Months
		Ended March 31,			Ended April 30,				Ended June 30,			Ended		Ended
												September 30,		December 31,
	(in millions)(1)	2012(2)			2012(2)				2012(2)			2012		2012
	Revenue	$	280.6		$	92.4			$	190.9		$	291.7	$	284.4
	Operating income (loss)	65.6			(65.8		)		37			61.6		43.6
	Net income (loss)	12.1			(64.5		)		10.8			23		14.1
	Net income (loss) attributable to TransUnion Corp	10.2			(65.1		)		9.6			20.8		12.6
	_____________________
	(1)	The sum of the quarterly totals may not equal the annual totals due to rounding.
	(2)	For the three months ended March 31, 2012, net income (loss) and net income (loss) attributable to TransUnion Corp included $2.6 million of acquisition fees related to the 2012 Change in Control Transaction. For the one month ended April 30, 2012, net income (loss) and net income (loss) attributable to TransUnion Corp included $18.3 million of acquisition fees related to the 2012 Change in Control Transaction. For the one month ended April 30, 2012, operating income (loss), net income (loss) and net income (loss) attributable to TransUnion Corp all included $90.0 million of accelerated stock-based compensation and related expense as a result of the 2012 Change in Control Transaction. For the two months ended June 30, 2012, operating income (loss), net income (loss) and net income (loss) attributable to TransUnion Corp all included $0.3 million of accelerated stock-based compensation and related expense as a result of the 2012 Change in Control Transaction

Accumulated_Other_Comprehensiv1

Accumulated Other Comprehensive Income (Loss) (Tables)	12 Months Ended
	Dec. 31, 2013
Stockholders' Equity Note [Abstract]	'
Component accumulated other comprehensive income (loss)	'
	The following table sets forth the changes in each component of accumulated other comprehensive income (loss), net of tax:
	(in millions)	Foreign			Net			Accumulated
		Currency			Unrealized			Other
		Translation			Gain/(Loss)			Comprehensive
		Adjustment			On Hedges			Income /
								(Loss)
	TransUnion Corp. Predecessor balance at December 31, 2011	$	(3.6	)	$	—		$	(3.6	)
	Change	2.2			—			2.2
	TransUnion Corp. Predecessor balance at April 30, 2012	$	(1.4	)	$	—		$	(1.4	)
	Purchase accounting adjustments	1.4			—			1.4
	Change	(20.7		)	(3.7		)	(24.4		)
	TransUnion Corp Successor and TransUnion Holding balance at December 31, 2012	$	(20.7	)	$	(3.7	)	$	(24.4	)
	Change	(51.9		)	$	3.1		(48.8		)
	TransUnion Corp Successor and TransUnion Holding balance at December 31, 2013	$	(72.6	)	$	(0.6	)	$	(73.2	)

Financial_Statements_of_Guaran1

Financial Statements of Guarantors (Tables)	12 Months Ended
	Dec. 31, 2013
Condensed Financial Statements, Captions [Line Items]	'
Consolidating balance sheet	'
		Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
		TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
		Corp			LLC and												Consolidated
					TransUnion
					Financing
					Corporation
	Assets
	Current assets:
	Cash and cash equivalents	$	19.3		$	—		$	—		$	91.9		$	—		$	111.2
	Trade accounts receivable, net	—			95.3			26.3			43.4			—			165
	Due from affiliates	—			—			—			58.3			(58.3		)	—
	Other current assets	36.9			37.8			1.2			5.1			—			81
	Total current assets	56.2			133.1			27.5			198.7			(58.3		)	357.2
	Property, plant and equipment, net	—			108.1			19.2			23.1			—			150.4
	Marketable securities	—			9.9			—			—			—			9.9
	Goodwill	—			1,145.60			262.1			502			—			1,909.70
	Other intangibles, net	—			1,537.40			213.6			183			—			1,934.00
	Other assets	1,615.50			1,084.10			34.4			51.9			(2,675.3		)	110.6
	Total assets	$	1,671.70		$	4,018.20		$	556.8		$	958.7		$	(2,733.6	)	$	4,471.80
	Liabilities and stockholders’ equity
	Current liabilities:
	Trade accounts payable	$	—		$	55.7		$	25.3		$	19.2		$	—		$	100.2
	Due to Affiliates	37.9			1.4			12						(51.3		)	—
	Current portion of long-term debt	—			12.8			1			7			(7.0		)	13.8
	Other current liabilities	62.7			70.6			8.4			26			—			167.7
	Total current liabilities	100.6			140.5			46.7			52.2			(58.3		)	281.7
	Long-term debt	—			1,852.80			2			6.5			(6.5		)	1,854.80
	Deferred taxes	(13.5		)	542.6			25.9			69			—			624
	Other liabilities	—			15.3			5.7			1.5			—			22.5
	Total liabilities	87.1			2,551.20			80.3			129.2			(64.8		)	2,783.00
	Redeemable noncontrolling interests	—			—			—			17.6			—			17.6
	Total TransUnion Corp stockholders’ equity	1,584.60			1,467.00			476.5			725.3			(2,668.8		)	1,584.60
	Noncontrolling interests	—			—			—			86.6			—			86.6
	Total stockholders’ equity	1,584.60			1,467.00			476.5			811.9			(2,668.8		)	1,671.20
	Total liabilities and stockholders’ equity	$	1,671.70		$	4,018.20		$	556.8		$	958.7		$	(2,733.6	)	$	4,471.80
	Consolidating Balance Sheet—Successor
	December 31, 2012
	(in millions)
		Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
		TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
		Corp			LLC and												Consolidated
					TransUnion
					Financing
					Corporation
	Assets
	Current assets:
	Cash and cash equivalents	$	75.3		$	—		$	—		$	79		$	—		$	154.3
	Trade accounts receivable, net	—			98			19.5			46.1			—			163.6
	Due from affiliates	—			—			46.2			56.7			(102.9		)	—
	Other current assets	(0.3		)	52.7			(0.7		)	7			—			58.7
	Total current assets	75			150.7			65			188.8			(102.9		)	376.6
	Property, plant and equipment, net	—			95.8			7.8			17.6			—			121.2
	Marketable securities	—			11.4			—			—			—			11.4
	Goodwill	—			961.6			324.6			518			—			1,804.20
	Other intangibles, net	—			1,629.60			75.8			206.2			—			1,911.60
	Other assets	1,611.80			1,235.20			17.6			42.4			(2,811.3		)	95.7
	Total assets	$	1,686.80		$	4,084.30		$	490.8		$	973		$	(2,914.2	)	$	4,320.70
	Liabilities and stockholders’ equity
	Current liabilities:
	Trade accounts payable	$	—		$	43.2		$	18.9		$	15.4		$	—		$	77.5
	Due to affiliates	14.9			82.5			—			—			(97.4		)	—
	Current portion of long-term debt	—			9.5			—			6.6			(5.5		)	10.6
	Other current liabilities	7.9			68.4			7.2			23.5			—			107
Total current liabilities	22.8			203.6			26.1			45.5			(102.9		)	195.1
Long-term debt	—			1,672.30			—			6.5			(6.5		)	1,672.30
Deferred taxes	(13.9		)	569.1			1.8			88.8			—			645.8
Other liabilities	—			20.5			0.2			0.9			—			21.6
Total liabilities	8.9			2,465.50			28.1			141.7			(109.4		)	2,534.80
Redeemable noncontrolling interests	—			—			—			14.7			—			14.7
Total TransUnion Corp stockholders’ equity	1,677.90			1,618.80			462.7			723.3			(2,804.8		)	1,677.90
Noncontrolling interests	—			—			—			93.3			—			93.3
Total stockholders’ equity	1,677.90			1,618.80			462.7			816.6			(2,804.8		)	1,771.20
Total liabilities and stockholders’ equity	$	1,686.80		$	4,084.30		$	490.8		$	973		$	(2,914.2	)	$	4,320.70
Consolidating statement of income	'
		Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
		TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
		Corp			LLC and												Consolidated
					TransUnion
					Financing
					Corporation
	Revenue	$	—		$	700.7		$	279.7		$	260.6		$	(57.8	)	$	1,183.20
	Operating expenses
	Cost of services	—			311.3			118.9			81.3			(39.1		)	472.4
	Selling, general and administrative	—			208.7			81.6			83			(19.8		)	353.5
	Depreciation and amortization	—			146.9			15.6			24.3			—			186.8
	Total operating expenses	—			666.9			216.1			188.6			(58.9		)	1,012.70
	Operating income	—			33.8			63.6			72			1.1			170.5
	Non-operating income and expense
	Interest expense	—			(101.3		)	0.1			(1.1		)	0.9			(101.4		)
	Interest income	—			0.9			—			1.6			(0.8		)	1.7
	Earnings from equity method investments	43.6			91.3			16.4			4.5			(142.1		)	13.7
	Other income and (expense), net	(0.1		)	(3.8		)	(2.1		)	(5.4		)	(1.2		)	(12.6		)
	Total non-operating income and expense	43.5			(12.9		)	14.4			(0.4		)	(143.2		)	(98.6		)
	Income (loss) before income taxes	43.5			20.9			78			71.6			(142.1		)	71.9
	(Provision) benefit for income taxes	(0.3		)	22.7			(28.6		)	(15.6		)	—			(21.8		)
	Net income (loss)	43.2			43.6			49.4			56			(142.1		)	50.1
	Less: net income attributable to noncontrolling interests	—			—			—			(6.9		)	—			(6.9		)
	Net income (loss) attributable to TransUnion Corp	$	43.2		$	43.6		$	49.4		$	49.1		$	(142.1	)	$	43.2
	Consolidating Statement of Income—Successor
	For the Eight Months Ended December 31, 2012
	(in millions)
		Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
		TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
		Corp			LLC and												Consolidated
					TransUnion
					Financing
					Corporation
	Revenue	$	—		$	465.7		$	168.2		$	176.1		$	(43.0	)	$	767
	Operating expenses
	Cost of services	—			202.3			72.9			52.9			(29.9		)	298.2
	Selling, general and administrative	—			135.5			39.3			50.9			(14.0		)	211.7
	Depreciation and amortization	—			91.3			7.7			16			—			115
	Total operating expenses	—			429.1			119.9			119.8			(43.9		)	624.9
	Operating income	—			36.6			48.3			56.3			0.9			142.1
	Non-operating income and expense
	Interest expense	—			(73.1		)	—			0.1			0.2			(72.8		)
	Interest income	—			0.2			—			0.8			(0.2		)	0.8
	Earnings from equity method investments	61.5			59.3			—			2.7			(115.5		)	8
	Other income and (expense), net	(0.3		)	1.4			—			(6.1		)	(0.9		)	(5.9		)
	Total non-operating income and expense	61.2			(12.2		)	—			(2.5		)	(116.4		)	(69.9		)
	Income (loss) before income taxes	61.2			24.4			48.3			53.8			(115.5		)	72.2
	(Provision) benefit for income taxes	(18.2		)	37.1			(21.8		)	(21.4		)	—			(24.3		)
	Net income (loss)	43			61.5			26.5			32.4			(115.5		)	47.9
	Less: net income attributable to noncontrolling interests	—			—			—			(4.9		)	—			(4.9		)
	Net income (loss) attributable to TransUnion Corp	$	43		$	61.5		$	26.5		$	27.5		$	(115.5	)	$	43
Schedule Of condensed comprehensive income loss table	'
	Consolidating Statement of Comprehensive Income—Successor
	For the Eight Months Ended December 31, 2012
	(in millions)
		Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
		TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
		Corp			LLC and												Consolidated
					TransUnion
					Financing
					Corporation
	Net income (loss)	$	43		$	61.5		$	26.5		$	32.4		$	(115.5	)	$	47.9
	Other comprehensive income (loss), net of tax
	Foreign currency translation adjustment	(20.7		)	(20.7		)	—			(22.7		)	41.4			(22.7		)
	Net unrealized loss on hedges	(3.7		)	(3.7		)	—			—			3.7			(3.7		)
	Total other comprehensive income (loss), net of tax	(24.4		)	(24.4		)	—			(22.7		)	45.1			(26.4		)
	Comprehensive income (loss)	18.6			37.1			26.5			9.7			(70.4		)	21.5
	Less: comprehensive income attributable to noncontrolling interests	—			—			—			(2.9		)	—			(2.9		)
	Comprehensive income (loss) attributable to TransUnion Corp	$	18.6		$	37.1		$	26.5		$	6.8		$	(70.4	)	$	18.6
	Consolidating Statement of Comprehensive Income—Predecessor
	For the Four Months Ended April 30, 2012
	(in millions)
		Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
		TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
		Corp			LLC and												Consolidated
					TransUnion
					Financing
					Corporation
	Net income (loss)	$	(54.9	)	$	(51.8	)	$	10		$	18		$	26.3		$	(52.4	)
	Other comprehensive income (loss), net of tax
	Foreign currency translation adjustment	2.2			2.2			—			2.5			(4.4		)	2.5
	Total other comprehensive income (loss), net of tax	2.2			2.2			—			2.5			(4.4		)	2.5
	Comprehensive income (loss)	(52.7		)	(49.6		)	10			20.5			21.9			(49.9		)
	Less: comprehensive income attributable to noncontrolling interests	—			—			—			(2.8		)	—			(2.8		)
	Comprehensive income (loss) attributable to TransUnion Corp	$	(52.7	)	$	(49.6	)	$	10		$	17.7		$	21.9		$	(52.7	)
		Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
		TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
		Corp			LLC and												Consolidated
					TransUnion
					Financing
					Corporation
	Net income (loss)	$	43.2		$	43.6		$	49.4		$	56		$	(142.1	)	$	50.1
	Other comprehensive income (loss), net of tax
	Foreign currency translation adjustment	(51.8		)	(51.8		)	—			(56.4		)	103.6			(56.4		)
	Net unrealized loss on hedges	3			3			—			—			(3.0		)	3
	Total other comprehensive income (loss), net of tax	(48.8		)	(48.8		)	—			(56.4		)	100.6			(53.4		)
	Comprehensive income (loss)	(5.6		)	(5.2		)	49.4			(0.4		)	(41.5		)	(3.3		)
	Less: comprehensive income attributable to noncontrolling interests	—			—			—			(2.3		)	—			(2.3		)
	Comprehensive income (loss) attributable to TransUnion Corp	$	(5.6	)	$	(5.2	)	$	49.4		$	(2.7	)	$	(41.5	)	$	(5.6	)
Consolidating statement of cash flows	'
	Consolidating Statement of Cash Flows—Successor
	For the Eight Months Ended December 31, 2012
	(in millions)
		Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
		TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
		Corp			LLC and												Consolidated
					TransUnion
					Financing
					Corporation
	Cash flows from operating activities:
	Net income (loss)	$	43		$	61.5		$	26.5		$	32.4		$	(115.5	)	$	47.9
	Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
	Depreciation and amortization	—			91.3			7.7			16			—			115
	Stock-based compensation	—			2.2			0.1			—			—			2.3
	Provision (reduction) for losses on trade accounts receivable	—			—			(2.1		)	0.2			—			(1.9		)
	Change in control transaction fees	0.4			—			—			—			—			0.4
	Deferred taxes	14.6			(12.1		)	5			4.3			—			11.8
	Amortization of 11.375% notes purchase accounting fair value adjustment	—			(10.8		)	—			—			—			(10.8		)
	Earnings from equity method investments, net of dividends	—			1.4			—			(0.1		)	—			1.3
	Equity in net income from subsidiaries	(61.5		)	(54.0		)	—			—			115.5			—
	Other	—			(0.5		)	—			3.1			—			2.6
	Changes in assets and liabilities:
	Trade accounts receivable	—			2.3			2.1			(5.4		)	—			(1.0		)
	Other current and long-term assets	72			(27.4		)	(28.0		)	(13.8		)	—			2.8
	Trade accounts payable	—			5.6			(3.4		)	(3.4		)	—			(1.2		)
	Other current and long-term liabilities	(80.9		)	(1.1		)	(1.1		)	5.6			—			(77.5		)
	Cash provided by (used in) operating activities	(12.4		)	58.4			6.8			38.9			—			91.7
	Consolidating Statement of Cash Flows—Successor—Continued
	For the Eight Months Ended December 31, 2012
	(in millions)
		Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
		TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
		Corp			LLC and												Consolidated
					TransUnion
					Financing
					Corporation
	Cash flows from investing activities:
	Capital expenditures for property and equipment	—			(36.9		)	(6.9		)	(5.0		)	—			(48.8		)
	Investments in trading securities	—			(0.5		)	—			—			—			(0.5		)
	Acquisitions and purchases of noncontrolling interests, net of cash acquired	—			—			—			(14.2		)	—			(14.2		)
	Acquisition related deposits	—			—			—			3.7			—			3.7
	Proceeds from notes receivable	—			—			—			3.9			(3.9		)	—
	Other	—			—			0.1			(1.5		)	—			(1.4		)
	Cash used in investing activities	—			(37.4		)	(6.8		)	(13.1		)	(3.9		)	(61.2		)
	Cash flows from financing activities:
	Repayments of debt	—			(21.0		)	—			(0.1		)	3.9			(17.2		)
	Change in control transaction fees	(0.4		)	—			—			—			—			(0.4		)
	Distributions to noncontrolling interests	—			—			—			(7.2		)	—			(7.2		)
	Dividends to TransUnion Holding	(27.9		)	—			—			—			—			(27.9		)
	Stockholder contributions	80.8			—			—			—			—			80.8
	Cash provided by (used in) financing activities	52.5			(21.0		)	—			(7.3		)	3.9			28.1
	Effect of exchange rate changes on cash and cash equivalents	—			—			—			(0.7		)	—			(0.7		)
	Net change in cash and cash equivalents	40.1			—			—			17.8			—			57.9
	Cash and cash equivalents, beginning of period	35.2			—			—			61.2			—			96.4
	Cash and cash equivalents, end of period	$	75.3		$	—		$	—		$	79		$	—		$	154.3
		Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
		TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
		Corp			LLC and												Consolidated
					TransUnion
					Financing
					Corporation
	Cash flows from investing activities:
	Capital expenditures for property and equipment	—			(55.4		)	(14.1		)	(12.2		)	—			(81.7		)
Investments in trading securities	—			(1.8		)	—			—			—			(1.8		)
Proceeds from sale of trading securities	—			4.4			—			—			—			4.4
Proceeds from sale of other assets	—			0.9			3.2			0.2			—			4.3
Acquisitions and purchases of noncontrolling interests, net of cash acquired	(152.4		)	—			(99.6		)	(30.3		)	—			(282.3		)
Acquisition related deposits	(1.0		)	—			—			(9.0		)	—			(10.0		)
Issuance of notes receivable	—			(32.0		)	—			—			32			—
Proceeds from notes receivable	—			30.5			—			—			(30.5		)	—
Other	—			—			0.1			—			—			0.1
Cash used in investing activities	(153.4		)	(53.4		)	(110.4		)	(51.3		)	1.5			(367.0		)
Cash flows from financing activities:
Proceeds from senior secured term loan	—			1,133.40			—			—			—			1,133.40
Extinguishment of senior secured term loan	—			(923.4		)	—			—			—			(923.4		)
Proceeds from revolving line of credit	—			65			—			—			—			65
Payment on revolving line of credit	—			(65.0		)	—			—			—			(65.0		)
Repayments of debt	—			(10.8		)	—			(31.6		)	30.5			(11.9		)
Debt financing fees	—			(4.3		)	—			—			—			(4.3		)
Distributions to noncontrolling interests	—			—			—			(8.0		)	—			(8.0		)
Dividends to Parent	(94.2		)	(153.2		)	—			—			153.2			(94.2		)
Proceeds from notes payable	—			—			—			32			(32.0		)	—
Cash provided by (used in) financing activities	(94.2		)	41.7			—			(7.6		)	151.7			91.6
Effect of exchange rate changes on cash and cash equivalents	—			—			—			(6.8		)	—			(6.8		)
Net change in cash and cash equivalents	(56.0		)	—			—			12.9			—			(43.1		)
Cash and cash equivalents, beginning of period	75.3			—			—			79			—			154.3
Cash and cash equivalents, end of period	$	19.3		$	—		$	—		$	91.9		$	—		$	111.2
Consolidating Statement of Cash Flows—Predecessor
For the Four Months Ended April 30, 2012
(in millions)
	Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
	TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
	Corp			LLC and												Consolidated
				TransUnion
				Financing
				Corporation
Cash flows from operating activities:
Net income (loss)	$	(54.9	)	$	(51.8	)	$	10		$	18		$	26.3		$	(52.4	)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	—			19.8			5.9			3.5			—			29.2
Stock-based compensation	—			1.8			—			0.2			—			2
Deferred financing fees	—			3.9			—			—			—			3.9
Provision (reduction) for losses on trade accounts receivable	—			0.4			2.5			0.2			—			3.1
Change in control transaction fees	20.9			—			—			—			—			20.9
Deferred taxes	(17.6		)	—			—			(0.7		)	—			(18.3		)
Earnings from equity method investments, net of dividends	—			(2.4		)	—			(1.3		)	—			(3.7		)
Equity in net (income) loss from subsidiaries	51.8			(25.5		)	—			—			(26.3		)	—
Loss (gain) on sale or exchange of property	—			0.1			—			—			—			0.1
Other	(0.1		)	(0.6		)	—			(0.1		)	0.1			(0.7		)
Changes in assets and liabilities:
Trade accounts receivable	—			(11.3		)	(7.0		)	(6.4		)	—			(24.7		)
Other current and long-term assets	(34.3		)	47.9			(15.8		)	3.7			—			1.5
Trade accounts payable	(0.1		)	(5.8		)	6.2			1.3			—			1.6
Other current and long-term liabilities	69.1			20			2.7			(1.9		)	—			89.9
Cash provided by (used in) operating activities	34.8			(3.5		)	4.5			16.5			0.1			52.4
	Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
	TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
	Corp			LLC and												Consolidated
				TransUnion
				Financing
				Corporation
Cash flows from operating activities:
Net income (loss)	$	43.2		$	43.6		$	49.4		$	56		$	(142.1	)	$	50.1
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Depreciation and amortization	—			146.9			15.6			24.3			—			186.8
Stock-based compensation	—			5.9			0.2			0.1			—			6.2
Deferred financing fees	—			2.5			—			—			—			2.5
Provision (reduction) for losses on trade accounts receivable	—			0.3			(0.2		)	0.7			—			0.8
Deferred taxes	0.7			(13.0		)	4.8			(4.6		)	—			(12.1		)
Amortization of 11.375% notes purchase accounting fair value adjustment	—			(17.4		)	—			—			—			(17.4		)
Earnings from equity method investments, net of dividends	—			(1.5		)	—			(2.1		)	—			(3.6		)
Equity in net income from subsidiaries	(43.6		)	(82.1		)	(16.4		)	—			142.1			—
Dividends from subsidiaries	153.2			—			—			—			(153.2		)	—
(Gain) loss on sale or exchange of property	—			(0.8		)	(2.8		)	2.6			—			(1.0		)
Other	—			(1.1		)	—			0.2			—			(0.9		)
Changes in assets and liabilities:
Trade accounts receivable	—			2.4			(4.4		)	(1.1		)	—			(3.1		)
Other current and long-term assets	20.8			(75.7		)	56.5			(5.7		)	—			(4.1		)
Trade accounts payable	—			(2.4		)	5.6			2.9			—			6.1
Other current and long-term liabilities	17.3			4.1			2.1			5.3			—			28.8
Cash provided by (used in) operating activities	191.6			11.7			110.4			78.6			(153.2		)	239.1
TransUnion Corp-Predecessor	'
Condensed Financial Statements, Captions [Line Items]	'
Consolidating statement of income	'
	Consolidating Statement of Income—Predecessor
	For the Twelve Months Ended December 31, 2011
	(in millions)
		Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
		TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
		Corp			LLC and												Consolidated
					TransUnion
					Financing
					Corporation
	Revenue	$	—		$	637.3		$	209.4		$	238.4		$	(61.1	)	$	1,024.00
	Operating expenses
	Cost of services	—			295.1			88.3			79.5			(41.4		)	421.5
	Selling, general and administrative	0.3			166.9			63			55.4			(21.1		)	264.5
	Depreciation and amortization	—			60.9			17.1			7.3			—			85.3
	Total operating expenses	0.3			522.9			168.4			142.2			(62.5		)	771.3
	Operating income (loss)	(0.3		)	114.4			41			96.2			1.4			252.7
	Non-operating income and expense
	Interest expense	(1.3		)	(124.9		)	—			(0.2		)	—			(126.4		)
	Interest income	—			0.1			—			0.6			—			0.7
	Earnings from equity method investments	42.9			89.9			—			3.2			(124.6		)	11.4
	Other income and (expense), net	—			(61.9		)	(0.1		)	(7.9		)	(1.4		)	(71.3		)
	Total non-operating income and expense	41.6			(96.8		)	(0.1		)	(4.3		)	(126.0		)	(185.6		)
	Income (loss) before income taxes	41.3			17.6			40.9			91.9			(124.6		)	67.1
	Benefit (provision) for income taxes	(0.5		)	25.3			(20.9		)	(21.7		)	—			(17.8		)
	Income (loss) from continuing operations	40.8			42.9			20			70.2			(124.6		)	49.3
	Discontinued operations, net of tax	—			—			—			(0.5		)	—			(0.5		)
	Net income (loss)	40.8			42.9			20			69.7			(124.6		)	48.8
	Less: net income attributable to noncontrolling interests	—			—			—			(8.0		)	—			(8.0		)
	Net income (loss) attributable to TransUnion Corp	$	40.8		$	42.9		$	20		$	61.7		$	(124.6	)	$	40.8
	Consolidating Statement of Income—Predecessor
	For the Four Months Ended April 30, 2012
	(in millions)
		Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
		TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
		Corp			LLC and												Consolidated
					TransUnion
					Financing
					Corporation
	Revenue	$	—		$	228.7		$	82.5		$	84.6		$	(22.8	)	$	373
	Operating expenses
	Cost of services	—			122.6			36.1			29.6			(16.3		)	172
	Selling, general and administrative	0.1			120			30.5			28.3			(6.9		)	172
	Depreciation and amortization	—			19.8			5.9			3.5			—			29.2
	Total operating expenses	0.1			262.4			72.5			61.4			(23.2		)	373.2
	Operating income (loss)	(0.1		)	(33.7		)	10			23.2			0.4			(0.2		)
	Non-operating income and expense
	Interest expense	(0.3		)	(40.2		)	—			(0.3		)	0.3			(40.5		)
	Interest income	0.3			0.3			—			0.3			(0.3		)	0.6
	Earnings (loss) from equity method investments	(51.8		)	28.3			—			1.3			26.3			4.1
	Other income and (expense), net	(20.9		)	(4.9		)	—			(1.7		)	(0.4		)	(27.9		)
	Total non-operating income and expense	(72.7		)	(16.5		)	—			(0.4		)	25.9			(63.7		)
	Income (loss) before income taxes	(72.8		)	(50.2		)	10			22.8			26.3			(63.9		)
	(Provision) benefit for income taxes	17.9			(1.6		)	—			(4.8		)	—			11.5
	Net income (loss)	(54.9		)	(51.8		)	10			18			26.3			(52.4		)
	Less: net income attributable to noncontrolling interests	—			—			—			(2.5		)	—			(2.5		)
	Net income (loss) attributable to TransUnion Corp	$	(54.9	)	$	(51.8	)	$	10		$	15.5		$	26.3		$	(54.9	)
Schedule Of condensed comprehensive income loss table	'
	Consolidating Statement of Comprehensive Income—Predecessor
	For the Twelve Months Ended December 31, 2011
	(in millions)
		Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
		TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
		Corp			LLC and												Consolidated
					TransUnion
					Financing
					Corporation
	Net income (loss)	$	40.8		$	42.9		$	20		$	69.7		$	(124.6	)	$	48.8
	Other comprehensive income (loss), net of tax
	Foreign currency translation adjustment	(12.9		)	(12.9		)	—			(14.5		)	25.8			(14.5		)
	Total other comprehensive income (loss), net of tax	(12.9		)	(12.9		)	—			(14.5		)	25.8			(14.5		)
	Comprehensive income (loss)	27.9			30			20			55.2			(98.8		)	34.3
	Less: comprehensive income attributable to noncontrolling interests	—			—			—			(6.4		)	—			(6.4		)
	Comprehensive income (loss) attributable to TransUnion Corp	$	27.9		30			$	20		$	48.8		$	(98.8	)	$	27.9
Consolidating statement of cash flows	'
	Consolidating Statement of Cash Flows—Predecessor—Continued
	For the Twelve Months Ended December 31, 2011
	(in millions)
		Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
		TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
		Corp			LLC and												Consolidated
					TransUnion
					Financing
					Corporation
	Investments in trading securities	—			(1.2		)	—			—			—			(1.2		)
	Proceeds from sale of trading securities	—			9.9			—			—			—			9.9
	Proceeds from sale and redemption of investments in available-for-sale securities	—			—			0.2			—			—			0.2
	Investments in held-to-maturity securities	—			—			—			(6.3		)	—			(6.3		)
	Proceeds from held-to-maturity securities	—			—			—			6.3			—			6.3
	Acquisitions and purchases of noncontrolling interests, net of cash acquired	—			—			(50.7		)	(54.5		)	—			(105.2		)
	Acquisition related deposits	—			—			—			(8.6		)	—			(8.6		)
	Other	—			(2.5		)	—			(0.2		)	—			(2.7		)
	Cash used in investing activities	—			(53.8		)	(55.8		)	(72.0		)	—			(181.6		)
	Cash flows from financing activities:
	Proceeds from senior secured term loan	—			950			—			—			—			950
	Extinguishment of senior secured term loan	—			(945.2		)	—			—			—			(945.2		)
	Prepayment fee on early extinguishment of senior secured term loan	—			(9.5		)	—			—			—			(9.5		)
	Repayments of debt	(3.9		)	(7.1		)	(0.7		)	—			—			(11.7		)
	Treasury stock purchases	(0.2		)	—			—			—			—			(0.2		)
	Distribution of merger consideration	(4.3		)	—			—			—			—			(4.3		)
	Debt financing fees	—			(11.3		)	—			—			—			(11.3		)
	Distributions to noncontrolling interests	—			—			—			(8.5		)	—			(8.5		)
	Stockholder contribution	—			—			—			0.3			—			0.3
	Other	(0.8		)	—			—			—			—			(0.8		)
	Cash used in financing activities	(9.2		)	(23.1		)	(0.7		)	(8.2		)	—			(41.2		)
	Effect of exchange rate changes on cash and cash equivalents	—			—			—			(3.8		)	—			(3.8		)
	Net change in cash and cash equivalents	(46.8		)	1			0.1			22.3			—			(23.4		)
	Cash and cash equivalents, beginning of period	81.4			—			—			49.8			—			131.2
	Cash and cash equivalents, end of period	$	34.6		$	1		$	0.1		$	72.1		$	—		$	107.8
	Consolidating Statement of Cash Flows—Predecessor—Continued
	For the Four Months Ended April 30, 2012
	(in millions)
		Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
		TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
		Corp			LLC and												Consolidated
					TransUnion
					Financing
					Corporation
	Cash flows from investing activities:
	Capital expenditures for property and equipment	—			(15.6		)	(3.6		)	(1.2		)	—			(20.4		)
	Proceeds from sale of trading securities	—			1.1			—			—			—			1.1
	Investments in trading securities	—			(1.1		)	—			—			—			(1.1		)
	Acquisitions and purchases of noncontrolling interests, net of cash acquired	—			—			—			(0.1		)	—			(0.1		)
	Proceeds from notes receivable	—			22.6			—			—			(22.6		)	—
	Issuance of notes receivable	—			—			—			(4.1		)	4.1			—
	Other	—			—			(0.1		)	1			—			0.9
	Cash provided by (used in) investing activities	—			7			(3.7		)	(4.4		)	(18.5		)	(19.6		)
	Cash flows from financing activities:
	Repayments of debt	(10.3		)	(2.5		)	(0.9		)	(23.5		)	22.6			(14.6		)
	Debt financing fees	—			(6.1		)	—			—			—			(6.1		)
	Distribution of merger consideration	(1.3		)	—			—			—			—			(1.3		)
	Change in control transaction fees	(20.9		)	—			—			—			—			(20.9		)
	Proceeds from issuance of debt	—			4.1			—			—			(4.1		)	—
	Treasury stock purchases	(1.3		)	—			—			—			—			(1.3		)
	Dividends to noncontrolling interests	—			—			—			(0.4		)	—			(0.4		)
	Other	(0.4		)	—			—			0.1			(0.1		)	(0.4		)
	Cash provided by (used in) financing activities	(34.2		)	(4.5		)	(0.9		)	(23.8		)	18.4			(45.0		)
	Effect of exchange rate changes on cash and cash equivalents	—			—			—			0.8			—			0.8
Net change in cash and cash equivalents	0.6			(1.0		)	(0.1		)	(10.9		)	—			(11.4		)
Cash and cash equivalents, beginning of period	34.6			1			0.1			72.1			—			107.8
Cash and cash equivalents, end of period	$	35.2		$	—		$	—		$	61.2		$	—		$	96.4
Consolidating Statement of Cash Flows—Predecessor
For the Twelve Months Ended December 31, 2011
(in millions)
	Parent			Issuers			Guarantor			Non-Guarantor			Eliminations			TransUnion
	TransUnion			Trans Union			Subsidiaries			Subsidiaries						Corp
	Corp			LLC and												Consolidated
				TransUnion
				Financing
				Corporation
Cash flows from operating activities:
Net income (loss)	$	40.8		$	42.9		$	20		$	69.7		$	(124.6	)	$	48.8
Less: income (loss) from discontinued operations, net of tax	—			—			—			(0.5		)	—			(0.5		)
Income (loss) from continuing operations	40.8			42.9			20			70.2			(124.6		)	49.3
Adjustments to reconcile income (loss) from continuing operations to net cash provided by (used in) operating activities:
Depreciation and amortization	—			60.9			17.1			7.3			—			85.3
Loss on early extinguishment of debt	—			59.3			—			—			—			59.3
Stock-based compensation	—			4.1			0.1			0.4			—			4.6
Deferred financing fees	—			4.2			—			—			—			4.2
Provision for losses on trade accounts receivable	—			1			0.3			0.6			—			1.9
Deferred taxes	(0.1		)	(4.6		)	1.1			0.1			—			(3.5		)
Earnings from equity method investments, net of dividends	—			(1.9		)	—			(1.5		)	—			(3.4		)
Loss (gain) on sale or exchange of property	—			—			(0.3		)	—			—			(0.3		)
Other	—			0.3			1.8			0.7			—			2.8
Equity in net income from subsidiaries	(42.9		)	(81.7		)	—			—			124.6			—
Changes in assets and liabilities:
Trade accounts receivable	—			(4.2		)	(2.8		)	(4.6		)	—			(11.6		)
Other current and long-term assets	(49.1		)	5.3			14			26.5			—			(3.3		)
Trade accounts payable	0.1			6.4			5.3			3.1			—			14.9
Other current and long-term liabilities	13.6			(14.1		)	—			4.8			—			4.3
Cash provided by (used in) operating activities of continuing operations	(37.6		)	77.9			56.6			107.6			—			204.5
Cash used in operating activities of discontinued operations	—			—			—			(1.3		)	—			(1.3		)
Cash provided by (used in) operating activities	(37.6		)	77.9			56.6			106.3			—			203.2
Cash flows from investing activities:
Capital expenditures for property and equipment	—			(60.0		)	(5.3		)	(8.7		)	—			(74.0		)

Significant_Accounting_and_Rep2

Significant Accounting and Reporting Policies (Details Textual) (USD $)

12 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

Dec. 31, 2013

Dec. 31, 2012

Apr. 30, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Mar. 21, 2012

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Segment

Internal Use Software [Member]

Maximum [Member]

Maximum [Member]

Minimum [Member]

Minimum [Member]

Building and Building Improvements [Member]

Computer Equipment and Purchased Software [Member]

Computer Equipment and Purchased Software [Member]

Leasehold Improvements [Member]

Leasehold Improvements [Member]

Available-for-sale Securities [Member]

9.625% notes

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Internal Use Software [Member]

Internal Use Software [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

Summary of Significant Accounting Policies (Textual) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Business acquisition, percentage of voting interests acquired

'

'

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Cost of services included research and development costs

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$7,600,000

$4,900,000

$3,700,000

$7,800,000

Advertising costs

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

19,200,000

32,300,000

15,500,000

32,800,000

Exchange rate gains (losses)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

100,000

-800,000

200,000

-2,800,000

Expenses related to defined contribution profit sharing plan

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

6,900,000

12,400,000

4,800,000

10,100,000

Senior notes issued notes to investor

'

'

'

'

'

'

'

'

'

'

'

'

'

'

600,000,000

'

'

'

'

Interest rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

9.63%

'

'

'

'

PIK rate percentage on notes

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10.38%

'

'

'

'

Senior note maturity date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'2018

'

'

'

'

Senior notes issued notes to investor

'

'

'

'

'

'

'

'

'

'

'

'

'

'

600,000,000

'

'

'

'

Interest rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

9.63%

'

'

'

'

PIK rate percentage on notes

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10.38%

'

'

'

'

Senior Note maturity date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'6/15/2018

'

'

'

'

Property, Plant and Equipment [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage Of Share Owned By Shareholders

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Estimated useful life of the asset

'

'

'

'

'

'

'

'

'20 years

'7 years

'3 years

'7 years

'5 years

'

'

'

'

'

'

Other-than-temporary impairments of marketable securities

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

'

'

'

'

Finite-Lived Intangible Assets [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Estimated useful life

'

'

'

'

'40 years

'7 years

'3 years

'3 years

'

'

'

'

'

'

'

'

'

'

'

Impairment of intangible assets, finite-lived

$0

$0

'

$2,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Summary of Significant Accounting Policies (Additional Textual) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Ownership interest

20.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Nonmarketable investments in TransUnion Corp

20.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of operating segments

3

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Change_in_Control_Transactions2

Change in Control Transactions (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012
In Millions, unless otherwise specified
Allocation of purchase price value of the assets acquired and the liabilities assumed	'	'	'
Identifiable intangible assets	'	'	$1,986.40
Goodwill	-1,909.70	-1,804.20	'
Transunion Corp [Member] | Successor [Member]	'	'	'
Allocation of purchase price value of the assets acquired and the liabilities assumed	'	'	'
Goodwill	-1,909.70	-1,804.20	'
TransUnion Change in Control [Member]	'	'	'
Allocation of purchase price value of the assets acquired and the liabilities assumed	'	'	'
Trade accounts receivable	'	'	162.4
Property and equipment	'	'	-112.9
Identifiable intangible assets	'	'	1,986.40
Goodwill	'	'	-1,794.80
All other assets	'	'	-302.3
Total assets acquired	'	'	4,358.80
Existing debt (including fair value adjustment)	'	'	-1,710.80
All other liabilities	'	'	-945.4
Noncontrolling interests	'	'	-109.9
Net assets of acquired company	'	'	$1,592.70

Change_in_Control_Transactions3

Change in Control Transactions (Details 1) (USD $)	1 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Apr. 30, 2012	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]	'	'
Identifiable intangible assets	$1,986.40	'
Database and credit files [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Identifiable intangible assets	765	'
Identifiable Intangible Assets	'	'
Estimated useful life	'15 years	'
Technology and software [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Identifiable intangible assets	364.6	'
Identifiable Intangible Assets	'	'
Estimated useful life	'7 years	'
Trade names and trademarks [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Identifiable intangible assets	546.1	'
Identifiable Intangible Assets	'	'
Estimated useful life	'40 years	'40 years
Customer relationships [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Identifiable intangible assets	308	'
Identifiable Intangible Assets	'	'
Estimated useful life	'20 years	'
Other [Member]	'	'
Finite-Lived Intangible Assets [Line Items]	'	'
Identifiable intangible assets	$2.70	'
Identifiable Intangible Assets	'	'
Estimated useful life	'5 years	'

Change_in_Control_Transactions4

Change in Control Transactions (Details Textual) (USD $)

1 Months Ended

2 Months Ended

3 Months Ended

10 Months Ended

12 Months Ended

2 Months Ended

8 Months Ended

12 Months Ended

1 Months Ended

3 Months Ended

4 Months Ended

12 Months Ended

Apr. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Mar. 21, 2012

Jun. 30, 2012

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Mar. 31, 2012

Apr. 30, 2012

Dec. 31, 2011

Apr. 30, 2012

Apr. 30, 2012

Apr. 30, 2012

9.625% notes

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

Affiliates of Advent [Member]

Affiliates of GSC [Member]

Members of management [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Change in Control Transactions (Textual) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Merger Agreement, TransUnion Holding

30-Apr-12

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Aggregate purchase price

$1,592,700,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Senior unsecured debt raised

'

'

'

'

'

'

600,000,000

'

'

'

'

'

'

'

'

'

'

Business acquisition, percentage of voting interests acquired

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

49.50%

49.50%

1.00%

Debt Related Commitment Fees and Debt Issuance Costs

'

'

'

'

'

'

'

'

'

'

'

'

2,700,000

'

'

'

'

Short-term Debt [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Senior notes issued notes to investor

'

'

'

'

'

'

600,000,000

'

'

'

'

'

'

'

'

'

'

Stock-based compensation expense

'

'

'

'

'

'

'

300,000

'

'

90,000,000

'

'

'

'

'

'

Change in Control Transactions (Additional Textual) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Business Combination, goodwill tax deductible

128,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Weighted-average useful life of identifiable intangible assets

'

'

'

'

'21 years 2 months 12 days

'

'

'

'

'

'

'

'

'

'

'

'

Repayment of bank debt

'

'

'

17,200,000

11,900,000

'

'

'

17,200,000

11,900,000

'

'

14,600,000

11,700,000

'

'

'

Provision for income taxes

'

'

'

-6,600,000

-2,300,000

'

'

'

-24,300,000

-21,800,000

'

'

11,500,000

-17,800,000

'

'

'

Interest rate

'

'

'

'

'

'

9.63%

'

'

'

'

'

'

'

'

'

'

Acquisition costs

'

$8,200,000

$7,000,000

$15,200,000

$3,700,000

$36,500,000

'

'

$400,000

'

$18,300,000

$2,600,000

$20,900,000

'

'

'

'

Business_Acquisitions_Details

Business Acquisitions (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012	Dec. 16, 2013
In Millions, unless otherwise specified				TLO [Member]
Allocation of purchase price value of the assets acquired and the liabilities assumed	'	'	'	'
Trade accounts receivable and other current assets	'	'	'	$0.30
Property and equipment	'	'	'	10.6
Identifiable intangible assets	'	'	1,986.40	88.4
Goodwill	1,909.70	1,804.20	'	58.9
Total assets acquired	'	'	'	158.2
Total liabilities assumed	'	'	'	-5.8
Net assets of acquired company	'	'	'	$152.40

Business_Acquisitions_Details_

Business Acquisitions (Details Textual) (USD $)	1 Months Ended	2 Months Ended	3 Months Ended	10 Months Ended	12 Months Ended			0 Months Ended
In Millions, unless otherwise specified	Apr. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Oct. 13, 2011	Dec. 16, 2013	Sep. 04, 2013	Mar. 01, 2013	Dec. 28, 2011
							Financial Healthcare Systems [Member]	Databusiness [Member]	eScan [Member]	ZipCode [Member]	Crivo [Member]
Business Acquisitions (Textual) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Ownership interest	100.00%	'	'	'	'	'	100.00%	100.00%	100.00%	80.00%	80.00%
Acquisition costs	'	$8.20	$7	$15.20	$3.70	$36.50	'	'	'	'	'
Sale of stock, consideration received on transaction	$1,592.70	'	'	'	'	'	'	$152.40	'	'	'

Other_Current_Assets_Details

Other Current Assets (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Other current assets	'	'
Deferred income tax assets	$22.10	$36.30
Prepaid expenses	34.9	33.8
Income taxes receivable	6.8	4.7
Deferred financing fees	6.8	5.7
Other	2.9	2.2
Total other current assets	73.5	82.7
TransUnion Corp-Successor | Transunion Corp [Member]	'	'
Other current assets	'	'
Deferred income tax assets	37.1	18.9
Prepaid expenses	34.9	33.8
Income taxes receivable	5.7	3.8
Deferred financing fees	0.4	0
Other	2.9	2.2
Total other current assets	$81	$58.70

Property_Plant_and_Equipment_D

Property, Plant and Equipment (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Property, plant and equipment	'	'
Computer equipment and furniture	$107.80	$75.50
Building and building improvements	64.3	42.7
Purchased software	45.3	26.2
Land	3.2	3.2
Total cost of property, plant and equipment	220.6	147.6
Less: accumulated depreciation	-70.2	-26.4
Total property, plant and equipment, net of accumulated depreciation	$150.40	$121.20

Property_Plant_and_Equipment_D1

Property, Plant and Equipment (Details Textual) (USD $)	10 Months Ended	12 Months Ended	8 Months Ended	12 Months Ended	4 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Apr. 30, 2012	Dec. 31, 2011
			Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]
			TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Predecessor	TransUnion Corp-Predecessor
Property, Plant and Equipment (Textual) [Abstract]	'	'	'	'	'	'
Accumulated depreciation	$26.40	$70.20	$26.40	$70.20	'	'
Depreciation expense	$26.70	$44	$26.70	$44	$12.40	$39.30

Goodwill_Details

Goodwill (Details) (USD $)

8 Months Ended

12 Months Ended

4 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

8 Months Ended

12 Months Ended

8 Months Ended

4 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Apr. 30, 2012

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Successor

USIS [Member]

USIS [Member]

USIS [Member]

International [Member]

International [Member]

International [Member]

International [Member]

Interactive [Member]

Interactive [Member]

Interactive [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

TransUnion Corp-Predecessor

Crivo [Member]

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Changes in the carrying amount of goodwill

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Beginning balance

'

$1,804.20

$275.20

$1,909.70

$1,804.20

'

$1,135.30

$147.50

'

$532.10

'

$81.80

'

$136.80

$45.90

Acquisitions

9.9

151.3

0.8

'

'

0

125.9

0

9.9

25.4

1.8

0.8

0

0

0

Foreign exchange rate adjustment

-15.5

-33.9

1.8

'

'

0

0

0

-15.5

-33.9

'

1.8

0

0

0

Goodwill, written off related to sale of business unit

'

-0.7

'

'

'

'

0

'

-0.2

-0.7

'

'

'

0

'

Tax deductible goodwill adjustment

6.7

-2.1

-10.3

'

'

0

0

0

6.7

-2.1

'

-10.3

0

0

0

Purchase accounting adjustments related to acquisition of TransUnion Corp

1,534

-9.1

'

'

'

987.8

-4.7

'

455.3

-3.8

'

'

90.9

-0.6

'

Additional purchase price related to acquisition of Brazil subsidiary

1.8

'

'

'

'

0

'

'

'

'

'

'

0

'

'

Goodwill related to disposed equity method investment

-0.2

'

'

'

'

0

'

'

'

'

'

'

0

'

'

Ending balance

$1,804.20

$1,909.70

$267.50

$1,909.70

$1,804.20

$1,135.30

$1,256.50

$147.50

$532.10

$517

'

$74.10

$136.80

$136.20

$45.90

Goodwill_Details_Textual

Goodwill (Details Textual) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
		TransUnion Corp-Predecessor	TransUnion Corp-Predecessor
Goodwill (Textual) [Abstract]	'	'	'
Goodwill impairment	$0	$0	$0
Accumulated goodwill impairment losses	$0	'	'

Intangible_Assets_Details

Intangible Assets (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012
Intangible assets	'	'	'
Gross	$2,161,500,000	$1,998,200,000	'
Accumulated amortization	-227,500,000	-86,600,000	0
Total future amortization expense	1,934,000,000	1,911,600,000	'
Database and credit files [Member]	'	'	'
Intangible assets	'	'	'
Gross	761,800,000	763,600,000	'
Accumulated amortization	-84,300,000	-33,900,000	'
Total future amortization expense	677,500,000	729,700,000	'
Internally developed software [Member]	'	'	'
Intangible assets	'	'	'
Gross	510,400,000	380,300,000	'
Accumulated amortization	-94,700,000	-34,800,000	'
Total future amortization expense	415,700,000	345,500,000	'
Internally developed software [Member] | TransUnion Corp-Successor	'	'	'
Intangible assets	'	'	'
Accumulated amortization	'	'	0
Customer relationships [Member]	'	'	'
Intangible assets	'	'	'
Gross	336,100,000	306,700,000	'
Accumulated amortization	-25,800,000	-10,300,000	'
Total future amortization expense	310,300,000	296,400,000	'
Customer relationships [Member] | TransUnion Corp-Successor	'	'	'
Intangible assets	'	'	'
Accumulated amortization	'	'	0
Trademarks, copyrights and patents [Member]	'	'	'
Intangible assets	'	'	'
Gross	550,700,000	545,500,000	'
Accumulated amortization	-22,200,000	-7,400,000	'
Total future amortization expense	528,500,000	538,100,000	'
Trademarks, copyrights and patents [Member] | TransUnion Corp-Successor	'	'	'
Intangible assets	'	'	'
Accumulated amortization	'	'	0
Noncompete and other agreements [Member]	'	'	'
Intangible assets	'	'	'
Gross	2,500,000	2,100,000	'
Accumulated amortization	-500,000	-200,000	'
Total future amortization expense	2,000,000	1,900,000	'
Noncompete and other agreements [Member] | TransUnion Corp-Successor	'	'	'
Intangible assets	'	'	'
Accumulated amortization	'	'	$0

Intangible_Assets_Details_1

Intangible Assets (Details 1) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Estimated future amortization expense related to purchased intangible	'	'
2014	$155.50	'
2015	154.8	'
2016	148.7	'
2017	143.2	'
2018	141.3	'
Thereafter	1,190.50	'
Total future amortization expense	$1,934	$1,911.60

Intangible_Assets_Details_Text

Intangible Assets (Details Textual) (USD $)

Dec. 31, 2013

Dec. 31, 2012

Apr. 30, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Apr. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Apr. 30, 2012

Apr. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Apr. 30, 2012

Apr. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Apr. 30, 2012

Dec. 31, 2013

Dec. 31, 2012

Apr. 30, 2012

Dec. 31, 2013

Dec. 31, 2013

Apr. 30, 2012

Apr. 30, 2012

Apr. 30, 2012

Apr. 30, 2012

Apr. 30, 2012

Maximum [Member]

Minimum [Member]

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

Database and credit files [Member]

Database and credit files [Member]

Database and credit files [Member]

Database and credit files [Member]

Database and credit files [Member]

Internally developed software [Member]

Internally developed software [Member]

Internally developed software [Member]

Customer relationships [Member]

Customer relationships [Member]

Customer relationships [Member]

Customer relationships [Member]

Customer relationships [Member]

Customer relationships [Member]

Trademarks, copyrights and patents [Member]

Trademarks, copyrights and patents [Member]

Trademarks, copyrights and patents [Member]

Trademarks, copyrights and patents [Member]

Noncompete agreements [Member]

Noncompete agreements [Member]

Noncompete agreements [Member]

Internal Use Software [Member]

Internal Use Software [Member]

TransUnion Change in Control [Member]

TransUnion Change in Control [Member]

TransUnion Change in Control [Member]

TransUnion Change in Control [Member]

TransUnion Change in Control [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Maximum [Member]

Minimum [Member]

TransUnion Corp-Successor

Maximum [Member]

Minimum [Member]

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

Maximum [Member]

Minimum [Member]

Database and credit files [Member]

Internally developed software [Member]

Customer relationships [Member]

Trademarks, copyrights and patents [Member]

Noncompete agreements [Member]

Intangible Assets (Textual) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Purchase accounting fair value increase adjustments

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

($705,100,000)

($261,200,000)

($256,100,000)

($537,000,000)

$3,300,000

Accumulated amortization

227,500,000

86,600,000

0

'

'

86,600,000

227,500,000

'

'

'

84,300,000

33,900,000

'

'

94,700,000

34,800,000

0

'

25,800,000

10,300,000

'

'

0

'

22,200,000

7,400,000

0

500,000

200,000

0

'

'

'

'

'

'

'

Amortizable intangibles estimated Useful lives

'

'

'

'40 years

'3 years

'

'

'

'

'15 years

'

'

'15 years

'12 years

'

'

'

'20 years

'

'

'20 years

'10 years

'

'40 years

'40 years

'

'

'

'

'

'7 years

'3 years

'

'

'

'

'

Amortization expense for intangible assets

'

'

'

'

'

$88,300,000

$142,800,000

$16,800,000

$46,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Other_Assets_Details

Other Assets (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Other assets	'	'
Investments in affiliated companies	$92.40	$88.60
Deferred financing fees	29.7	34
Deposits	15.8	6.3
Other	0.7	0.9
Total other assets	138.6	129.8
TransUnion Corp-Successor | Transunion Corp [Member]	'	'
Other assets	'	'
Investments in affiliated companies	92.4	88.6
Deferred financing fees	1.6	0
Deposits	15.8	6.3
Other	0.8	0.8
Total other assets	$110.60	$95.70

Investments_in_Affiliated_Comp1

Investments in Affiliated Companies (Details) (USD $)

10 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

8 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Apr. 30, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Apr. 30, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Successor

Equity Method Significant Subsidiary - TU Mexico [Member]

Equity Method Significant Subsidiary - TU Mexico [Member]

Equity Method Significant Subsidiaries [Member]

Equity Method Significant Subsidiaries [Member]

Equity Method Significant Subsidiaries [Member]

Equity Method Significant Subsidiaries [Member]

Equity Method Significant Subsidiary - CIBIL [Member]

Equity Method Significant Subsidiary - CIBIL [Member]

Equity Method - All Other Subsidiaries [Member]

Equity Method - All Other Subsidiaries [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Schedule of Investments [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Impairments of investments in affiliated companies

'

'

$0

$0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Equity method investments

80.7

84.5

80.7

'

'

'

'

'

50

49.4

'

'

'

'

28.4

26.6

6.1

4.7

Cost method investments

7.9

7.9

7.9

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures

88.6

92.4

88.6

'

'

'

88.6

92.4

'

'

'

'

'

'

'

'

'

'

Earnings from equity method investments

8

13.7

'

'

4.1

11.4

8

13.7

'

'

'

'

'

'

'

'

'

'

Dividends received from equity method investments

9.3

10.1

'

'

0.4

8

9.3

'

'

'

'

'

'

'

'

'

'

'

Current assets

'

'

'

'

'

'

'

'

'

'

'

61.4

62.6

'

'

'

'

'

Noncurrent assets

'

'

'

'

'

'

'

'

'

'

'

22.1

19.8

'

'

'

'

'

Current liabilities

'

'

'

'

'

'

'

'

'

'

'

23.2

22.4

'

'

'

'

'

Noncurrent liabilities

'

'

'

'

'

'

'

'

'

'

'

1.3

1.4

'

'

'

'

'

Revenue

'

'

'

'

'

'

'

'

'

'

30.2

60.5

95.2

81.9

'

'

'

'

Operating Income

'

'

'

'

'

'

'

'

'

'

13.4

27.3

47.6

41

'

'

'

'

Income from continuing operations

'

'

'

'

'

'

'

'

'

'

11.1

22.3

39

33.1

'

'

'

'

Net income

'

'

'

'

'

'

'

'

'

'

$11.10

$22.30

$39

$33.10

'

'

'

'

Investments_in_Affiliated_Comp2

Investments in Affiliated Companies (Details Textual) (USD $)	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2013
In Millions, unless otherwise specified		Cost-method Investments [Member]	Transunion Corp [Member]	Transunion Corp [Member]	Equity Method Investments [Member]
			Cost-method Investments [Member]	Cost-method Investments [Member]
			TransUnion Corp-Predecessor	TransUnion Corp-Successor
Percentage of ownership interest	20.00%	'	'	'	'
Other-than-temporary impairments of marketable securities	'	'	'	'	$0
Dividends received from cost method investments	'	$0.70	$0.60	$0.60	'

Other_Current_Liabilities_Deta

Other Current Liabilities (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Other current liabilities	'	'
Accrued payroll	$63.70	$64.20
Accrued interest	23.1	25.8
Estimated litigation liability, current	13.8	5.6
Deferred revenue	9.1	12.5
Accrued employee benefits	9.6	10.6
Other	14.2	10.6
Total other current liabilities	133.5	129.3
TransUnion Corp-Successor | Transunion Corp [Member]	'	'
Other current liabilities	'	'
Accrued payroll	63.7	64.2
Payable to TransUnion Holding	52.7	0
Accrued interest	4.9	3.7
Estimated litigation liability, current	13.8	5.6
Deferred revenue	9.1	12.5
Accrued employee benefits	9.6	10.6
Other	13.9	10.4
Total other current liabilities	$167.70	$107

Other_Liabilities_Details

Other Liabilities (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Other liabilities	'	'
Retirement benefits	$10.40	$10.60
Unrecognized tax benefits	4.6	4.9
Other	7.6	6.4
Total other liabilities	22.6	21.9
TransUnion Corp-Successor | Transunion Corp [Member]	'	'
Other liabilities	'	'
Retirement benefits	10.4	10.6
Unrecognized tax benefits	4.5	4.8
Other	7.6	6.2
Total other liabilities	$22.50	$21.60

Debt_Details

Debt (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Debt Instrument [Line Items]	'	'
Debt and capital lease obligations	$2,866.90	$2,680.90
Current portion of long-term debt	-13.8	-10.6
Debt outstanding	'	'
Long-term debt	2,853.10	2,670.30
Total debt	2,866.90	'
Senior Secured Term Loan [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt and capital lease obligations	1,123.50	'
Senior Loans [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt and capital lease obligations	'	923.4
Senior Secured Revolving Line Of Credit [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt and capital lease obligations	0	0
11.375% Senior notes [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt and capital lease obligations	740.9	758.4
Debt outstanding	'	'
Total debt	740.9	'
9.625% Senior Note [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt and capital lease obligations	600	600
8.125 % Senior Note [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt and capital lease obligations	398.3	398
Debt outstanding	'	'
Total debt	398.3	'
10.0% Note payable [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt and capital lease obligations	0	0.9
Capital lease obligations [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt and capital lease obligations	4.2	0.2
TransUnion Corp-Successor | Transunion Corp [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt and capital lease obligations	1,868.60	1,682.90
Current portion of long-term debt	-13.8	-10.6
Debt outstanding	'	'
Long-term debt	1,854.80	1,672.30
Total debt	1,868.60	'
TransUnion Corp-Successor | Transunion Corp [Member] | Senior Loans [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt and capital lease obligations	1,123.50	923.4
TransUnion Corp-Successor | Transunion Corp [Member] | Senior Secured Revolving Line Of Credit [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt and capital lease obligations	0	0
TransUnion Corp-Successor | Transunion Corp [Member] | 11.375% Senior notes [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt and capital lease obligations	740.9	758.4
TransUnion Corp-Successor | Transunion Corp [Member] | 9.625% Senior Note [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt and capital lease obligations	0	0
TransUnion Corp-Successor | Transunion Corp [Member] | 8.125 % Senior Note [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt and capital lease obligations	0	0
TransUnion Corp-Successor | Transunion Corp [Member] | 10.0% Note payable [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt and capital lease obligations	0	0.9
TransUnion Corp-Successor | Transunion Corp [Member] | Capital lease obligations [Member]	'	'
Debt Instrument [Line Items]	'	'
Debt and capital lease obligations	$4.20	$0.20

Debt_Details_1

Debt (Details 1) (USD $)	Dec. 31, 2013
In Millions, unless otherwise specified
Scheduled future maturities	'
2014	$13.80
2015	12.6
2016	12.6
2017	11.6
2018	1,656.60
Thereafter	1,065.30
Unamortized premiums and discounts on notes	94.4
Total debt	2,866.90
TransUnion Corp-Successor | Transunion Corp [Member]	'
Scheduled future maturities	'
2014	13.8
2015	12.6
2016	12.6
2017	11.6
2018	656.6
Thereafter	1,065.30
Unamortized premiums and discounts on notes	96.1
Total debt	$1,868.60

Debt_Details_2

Debt (Details 2) (USD $)

10 Months Ended

12 Months Ended

10 Months Ended

12 Months Ended

10 Months Ended

12 Months Ended

10 Months Ended

12 Months Ended

10 Months Ended

12 Months Ended

10 Months Ended

12 Months Ended

10 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Apr. 30, 2012

Dec. 31, 2011

Apr. 30, 2012

Dec. 31, 2011

Apr. 30, 2012

Dec. 31, 2011

Apr. 30, 2012

Dec. 31, 2011

Apr. 30, 2012

Dec. 31, 2011

Apr. 30, 2012

Dec. 31, 2011

Senior secured term loan [Member]

Senior secured term loan [Member]

Senior Secured Revolving Line Of Credit [Member]

Senior Secured Revolving Line Of Credit [Member]

Eleven Point Three Seven Five Percent Senior Notes [Member]

Eleven Point Three Seven Five Percent Senior Notes [Member]

9.625% Senior Note [Member]

9.625% Senior Note [Member]

8.125% notes

8.125% notes

Other debt [Member]

Other debt [Member]

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

Predecessor [Member]

Predecessor [Member]

Predecessor [Member]

Predecessor [Member]

Predecessor [Member]

Predecessor [Member]

Predecessor [Member]

Predecessor [Member]

Predecessor [Member]

Predecessor [Member]

Predecessor [Member]

Predecessor [Member]

Predecessor [Member]

Predecessor [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Senior secured term loan [Member]

Senior secured term loan [Member]

Senior Secured Revolving Line Of Credit [Member]

Senior Secured Revolving Line Of Credit [Member]

Eleven Point Three Seven Five Percent Senior Notes [Member]

Eleven Point Three Seven Five Percent Senior Notes [Member]

9.625% Senior Note [Member]

9.625% Senior Note [Member]

8.125% notes

8.125% notes

Other debt [Member]

Other debt [Member]

Senior secured term loan [Member]

Senior secured term loan [Member]

Senior Secured Revolving Line Of Credit [Member]

Senior Secured Revolving Line Of Credit [Member]

Eleven Point Three Seven Five Percent Senior Notes [Member]

Eleven Point Three Seven Five Percent Senior Notes [Member]

9.625% Senior Note [Member]

9.625% Senior Note [Member]

8.125% notes

8.125% notes

Other debt [Member]

Other debt [Member]

Interest Expenses

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total interest expense

$125

$197.60

$35

$44.20

$0

$0.70

$38.10

$55.90

$46.70

$62.20

$5.50

$34.10

($0.30)

$0.50

$72.80

$101.40

$35

$44.20

$0

$0.70

$38.10

$55.90

$0

$0

$0

$0

($0.30)

$0.60

$40.50

$126.40

$15.60

$49.90

$0

$0

$25.10

$75.10

$0

$0

$0

$0

($0.20)

$1.40

Debt_Details_3

Debt (Details 3) (USD $)	4 Months Ended	8 Months Ended	10 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Apr. 30, 2012	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2011
Loan fees included in other interest and expense	'	'	'	'	'
Total loan fees	'	'	$1.90	$3.80	'
Senior Loans [Member]	'	'	'	'	'
Loan fees included in other interest and expense	'	'	'	'	'
Loss on early extinguishment of debt	'	'	0	0	'
Total loan fees	'	'	0	2.4	'
Senior Secured Revolving Line Of Credit [Member]	'	'	'	'	'
Loan fees included in other interest and expense	'	'	'	'	'
Total loan fees	'	'	0.7	1.1	'
9.625% notes	'	'	'	'	'
Loan fees included in other interest and expense	'	'	'	'	'
Total loan fees	0	0	1	0	0
Other debt [Member]	'	'	'	'	'
Loan fees included in other interest and expense	'	'	'	'	'
Total loan fees	'	'	0.2	0.3	'
TransUnion Corp-Successor | Transunion Corp [Member]	'	'	'	'	'
Loan fees included in other interest and expense	'	'	'	'	'
Loss on early extinguishment of debt	'	0	'	0	'
Total loan fees	'	0.9	'	3.8	'
TransUnion Corp-Successor | Transunion Corp [Member] | Senior Loans [Member]	'	'	'	'	'
Loan fees included in other interest and expense	'	'	'	'	'
Loss on early extinguishment of debt	'	0	'	0	'
Total loan fees	'	0	'	2.4	'
TransUnion Corp-Successor | Transunion Corp [Member] | Senior Secured Revolving Line Of Credit [Member]	'	'	'	'	'
Loan fees included in other interest and expense	'	'	'	'	'
Total loan fees	'	0.7	'	1.1	'
TransUnion Corp-Successor | Transunion Corp [Member] | Other debt [Member]	'	'	'	'	'
Loan fees included in other interest and expense	'	'	'	'	'
Total loan fees	'	0.2	'	0.3	'
TransUnion Corp-Predecessor | Transunion Corp [Member]	'	'	'	'	'
Loan fees included in other interest and expense	'	'	'	'	'
Loss on early extinguishment of debt	0	'	'	'	59.3
Total loan fees	3.1	'	'	'	60.9
TransUnion Corp-Predecessor | Transunion Corp [Member] | Senior Loans [Member]	'	'	'	'	'
Loan fees included in other interest and expense	'	'	'	'	'
Loss on early extinguishment of debt	0	'	'	'	59.3
Total loan fees	0	'	'	'	0
TransUnion Corp-Predecessor | Transunion Corp [Member] | Senior Secured Revolving Line Of Credit [Member]	'	'	'	'	'
Loan fees included in other interest and expense	'	'	'	'	'
Total loan fees	0.4	'	'	'	1.3
TransUnion Corp-Predecessor | Transunion Corp [Member] | Other debt [Member]	'	'	'	'	'
Loan fees included in other interest and expense	'	'	'	'	'
Total loan fees	$2.70	'	'	'	$0.30

Debt_Details_Textual

Debt (Details Textual) (USD $)

3 Months Ended

10 Months Ended

12 Months Ended

12 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

1 Months Ended

4 Months Ended

12 Months Ended

12 Months Ended

4 Months Ended

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Mar. 21, 2012

Nov. 01, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Apr. 15, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 16, 2013

Nov. 22, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2013

Apr. 30, 2012

Apr. 30, 2012

Dec. 31, 2011

Dec. 31, 2011

Apr. 15, 2012

Apr. 15, 2011

Jun. 15, 2010

Dec. 31, 2013

Apr. 30, 2012

Apr. 30, 2012

Senior Secured Term Loan [Member]

Senior Loans [Member]

11.375% Senior notes [Member]

11.375% Senior notes [Member]

9.625%/10.375% senior PIK toggle notes due 2018 [Member]

9.625% Senior Note [Member]

9.625% Senior Note [Member]

8.125 % Senior Note [Member]

8.125 % Senior Note [Member]

8.125 % Senior Note [Member]

10.0% Note payable [Member]

Senior Unsecured PIK Toggle Notes Nine Point Six Two Five [Member]

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

Swap [Member]

Swap [Member]

Swap [Member]

10.0% Note payable [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp-Successor

TransUnion Corp-Successor

Senior Loans [Member]

Senior Loans [Member]

Senior Loans [Member]

Senior Loans [Member]

Senior Loans [Member]

Senior Secured Revolving Line Of Credit [Member]

Senior Secured Revolving Line Of Credit [Member]

Senior Secured Revolving Line Of Credit [Member]

11.375% Senior notes [Member]

Senior Secured Revolving Line Of Credit - Tranche 1 [Member]

Senior Secured Revolving Line Of Credit Tranche 2 [Member]

Senior Secured Revolving Line Of Credit Tranche 3 [Member]

Notes Payable [Member]

Notes Payable [Member]

Notes Payable [Member]

11.375% Senior notes [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

Minimum [Member]

Maximum [Member]

Minimum [Member]

Maximum [Member]

Debt Instrument [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Maturity Date

'

'

'

'

10-Feb-19

'

15-Jun-18

'

'

15-Jun-18

'

'

15-Jun-18

'

15-Apr-13

'

'

'

'

'

'

'

'

'

10-Feb-17

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Interest Rate, Stated Percentage

'

'

'

'

'

'

11.38%

'

'

9.63%

'

'

8.13%

'

10.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, Unamortized Discount

'

'

'

'

'

'

'

'

'

'

'

'

$2,000,000

$1,700,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Proceeds from issuance of debt

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

145,000,000

65,000,000

'

'

'

'

'

'

'

'

'

'

'

0

'

'

'

'

'

'

'

'

Debt (Textual) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Variable interest rate

'

'

'

'

4.25%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

4.63%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt Instrument, unamortized premium

'

'

'

'

200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fixed interest rate

'

'

'

'

'

'

11.38%

'

'

'

9.63%

8.13%

8.13%

'

'

9.63%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

11.38%

'

'

'

PIK rate percentage on notes

'

'

'

'

'

'

'

'

'

'

10.38%

8.88%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Maturity date

'

'

'

'

'

'

'

'

'

'

'6/15/2018

'6/15/2018

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unamortized fair value adjustment

'

'

'

'

'

'

95,900,000

113,400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Senior notes issued notes to investor

'

'

'

'

'

'

'

'

'

'

600,000,000

400,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

645,000,000

'

'

'

Offering price

'

'

'

'

'

'

'

'

'

'

'

99.50%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Dividends, cash

373,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Statutory accounting practices, statutory amount available for dividend payments

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

140,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Line of credit facility, current borrowing capacity

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

210,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Repayment of term loan

'

17,200,000

11,900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

17,200,000

11,900,000

'

'

10,000,000

'

'

'

'

'

'

'

'

'

'

14,600,000

11,700,000

'

'

'

'

'

'

'

Revolving line of credit rate margin

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

3.00%

'

'

'

2.75%

5.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Debt instrument floor interest rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.25%

1.75%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Annual commitment fee

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.50%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Principal payments percentage

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.25%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Revolving line of credit, expiration date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

15-Jun-15

10-Feb-16

10-Feb-17

'

'

'

'

'

'

'

'

'

'

Additional principal payments beginning date

'

'

'

'

'

'2014

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of excess cash flows to determine principal payment

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.00%

50.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Senior secured revolving line of credit

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

25,000,000

30,000,000

155,000,000

'

'

'

'

'

'

'

'

'

'

Percentage variable rate of interest

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.50%

'

Period of LIBOR interest rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'3 months

'

'

'

'

'

'

'

'

'

Fixed rate of interest

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

2.03%

'

Derivative, description of variable rate basis

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'Interest equal to the greater of 1.50% or the 3-month LIBOR

Notional amount of swaps

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

462,500,000

'

'

Fair value of swap instrument, liability

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,000,000

'

'

Unrealized loss, net of tax, on swap instruments

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

600,000

'

'

Imputed interest rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10.00%

'

'

'

'

'

'

Purchase accounting adjustment, senior notes

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

124,200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

Note payable for acquisition of noncontrolling interests

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0

'

'

'

'

'

'

'

'

'

'

'

'

'

0

1,800,000

2,000,000

'

'

'

'

'

'

LIBOR Floor Rate

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1.25%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Discount on unsecured non interest bearing note

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

200,000

'

'

'

'

'

'

Business acquisition, percentage of voting interests acquired

'

'

'

100.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

20.00%

'

'

'

'

Unsecured, non-interest bearing note, due in annual installments

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

1,000,000

'

'

'

'

'

Carrying value of long term debts

'

'

2,866,900,000

'

'

'

740,900,000

'

600,000,000

'

'

'

398,300,000

'

'

'

'

'

1,868,600,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Long term debt fair value

'

'

'

'

'

'

$703,100,000

'

'

$645,800,000

'

'

$425,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Income_Taxes_Details

Income Taxes (Details) (USD $)	10 Months Ended	12 Months Ended	8 Months Ended	12 Months Ended	4 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Apr. 30, 2012	Dec. 31, 2011
			TransUnion Corp [Member]	TransUnion Corp [Member]	TransUnion Corp [Member]	TransUnion Corp [Member]
			TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Predecessor	TransUnion Corp-Predecessor
Federal	'	'	'	'	'	'
Current	$0.10	$0.10	$0	$15.30	$1	($3)
Deferred	-3	-15.5	13.2	-13.3	-16.1	-1.3
State	'	'	'	'	'	'
Current	-0.5	0	0.4	0.2	0.1	1.6
Deferred	-0.3	-0.3	0.4	1.6	-1.5	-1.4
Foreign	'	'	'	'	'	'
Current	12.1	18.4	12.1	18.4	5.7	22.7
Deferred	-1.8	-0.4	-1.8	-0.4	-0.7	-0.8
Total provision (benefit) for income taxes	$6.60	$2.30	$24.30	$21.80	($11.50)	$17.80

Income_Taxes_Details_1

Income Taxes (Details 1) (USD $)	10 Months Ended	12 Months Ended	8 Months Ended	12 Months Ended	4 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Apr. 30, 2012	Dec. 31, 2011
			TransUnion Corp [Member]	TransUnion Corp [Member]	TransUnion Corp [Member]	TransUnion Corp [Member]
			TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Predecessor	TransUnion Corp-Predecessor
Summary of components of income (loss) from continuing operations before income taxes	'	'	'	'	'	'
Domestic	($33.30)	($72.90)	$36.20	$24.90	($79.50)	$0.20
Foreign	36	47	36	47	15.6	66.9
Total income (loss) from continuing operations before income taxes	$2.70	($25.90)	$72.20	$71.90	($63.90)	$67.10

Income_Taxes_Details_2

Income Taxes (Details 2) (USD $)	10 Months Ended	12 Months Ended	8 Months Ended	4 Months Ended	12 Months Ended		8 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2013
			TransUnion Corp [Member]	TransUnion Corp [Member]	TransUnion Corp [Member]	TransUnion Corp [Member]	TransUnion Corp [Member]	TransUnion Corp [Member]
				TransUnion Corp-Predecessor	TransUnion Corp-Predecessor	TransUnion Corp-Predecessor	TransUnion Corp-Successor	TransUnion Corp-Successor
Reconciliation of the U.S. federal statutory tax rate to our effective tax rate	'	'	'	'	'	'	'	'
Income taxes at 35% statutory rate, Value	$0.90	($9.10)	'	($22.40)	'	$23.50	$25.30	$25.10
Income taxes at 35% statutory rate, Percent	35.00%	35.00%	'	35.00%	'	35.00%	35.00%	35.00%
Increase (decrease) resulting from:	'	'	'	'	'	'	'	'
State taxes net of federal income tax benefit	-0.9	-0.1	'	-1.4	'	-0.4	0.7	1.6
State taxes net of federal income tax benefit, percent	-35.00%	0.40%	'	2.20%	'	-0.60%	1.00%	2.20%
Foreign rate differential	-4	-0.9	'	-1.2	'	-3.9	-4	-0.9
Foreign rate differential, percent	-148.10%	3.50%	'	1.90%	'	-5.80%	-5.50%	-1.30%
Nondeductible change in control transaction expenses	1.8	0	'	2.7	'	-4.5	0.2	0
Nondeductible change in control transaction expenses, percent	66.70%	0.00%	'	-4.20%	'	-6.70%	0.30%	0.00%
Application of ASC 740-30 to foreign earnings	4.3	15.1	'	8.1	'	2.5	-1.9	-1.6
Application of ASC 740-30 to foreign earnings, percent	159.20%	-58.00%	'	-12.70%	'	3.70%	-2.70%	-2.30%
Impact of foreign dividends and foreign tax credits	5	-1.7	'	2	'	2	4.9	-1.7
Impact of foreign dividends and foreign tax credits, percent	185.20%	6.40%	'	-3.10%	'	3.00%	6.80%	-2.30%
Other	-0.5	-1	'	0.7	'	-1.4	-0.9	-0.7
Other, percent	-18.60%	3.90%	'	-1.10%	'	-2.10%	-1.20%	-1.00%
Total provision (benefit) for income taxes	$6.60	$2.30	'	($11.50)	'	$17.80	$24.30	$21.80
Total, percent	244.40%	-8.80%	33.70%	18.00%	26.50%	26.50%	33.70%	30.30%

Income_Taxes_Details_3

Income Taxes (Details 3) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Deferred income tax assets:	'	'
Deferred compensation	$6.80	$4.70
Employee benefits	6.3	6.3
Legal reserves and settlements	3.5	1.9
Hedge investments	0.4	2.2
Financing related costs	39.4	46.4
Loss and credit carryforwards	72.5	71
Other	8.6	6.3
Gross deferred income tax assets	137.5	138.8
Valuation allowance	-25.9	-27.2
Total deferred income tax assets, net	111.6	111.6
Deferred income tax liabilities:	'	'
Depreciation and amortization	-647.3	-662.1
Investments in affiliated companies	-17.1	-17.1
Taxes on undistributed foreign earnings	-57.1	-49.7
Other	-4.9	-3.9
Total deferred income tax liability	-726.4	-732.8
Net deferred income tax liability	-614.8	-621.2
TransUnion Corp [Member] | TransUnion Corp-Successor	'	'
Deferred income tax assets:	'	'
Deferred compensation	6.8	4.7
Employee benefits	6.3	6.3
Legal reserves and settlements	3.5	1.9
Hedge investments	0.4	2.2
Financing related costs	39.4	46.4
Loss and credit carryforwards	69.3	51.3
Other	5.4	2.8
Gross deferred income tax assets	131.1	115.6
Valuation allowance	-25.9	-27.2
Total deferred income tax assets, net	105.2	88.4
Deferred income tax liabilities:	'	'
Depreciation and amortization	-647.3	-662.1
Investments in affiliated companies	-17.1	-17.1
Taxes on undistributed foreign earnings	-22.9	-32.2
Other	-4.8	-3.9
Total deferred income tax liability	-692.1	-715.3
Net deferred income tax liability	($586.90)	($626.90)

Income_Taxes_Details_4

Income Taxes (Details 4) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Unrecognized tax benefits	'	'
Balance as of beginning of period	$4.90	$3.20
Additions for tax positions of prior years	0	0.2
Reductions for tax positions of prior years	-0.1	0
Additions for tax positions of current year	0	1.7
Reductions relating to settlement and lapse of statute	-0.2	-0.2
Balance as of December 31	4.6	4.9
TransUnion Corp [Member] | TransUnion Corp-Successor	'	'
Unrecognized tax benefits	'	'
Balance as of beginning of period	4.8	3.2
Additions for tax positions of prior years	0	0.2
Reductions for tax positions of prior years	-0.1	0
Additions for tax positions of current year	0	1.6
Reductions relating to settlement and lapse of statute	-0.2	-0.2
Balance as of December 31	$4.50	$4.80

Income_Taxes_Details_Textual

Income Taxes (Details Textual) (USD $)	10 Months Ended	12 Months Ended			8 Months Ended		12 Months Ended		4 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2011	Apr. 30, 2012	Dec. 31, 2012	Dec. 31, 2011
					TransUnion Corp [Member]	TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Predecessor	TransUnion Corp-Predecessor	TransUnion Corp-Predecessor
						TransUnion Corp [Member]	TransUnion Corp [Member]	TransUnion Corp [Member]	TransUnion Corp [Member]	TransUnion Corp [Member]	TransUnion Corp [Member]
Income Taxes (Textual) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Total unrecognized tax benefits	$4.90	$4.60	$4.90	$3.20	'	$4.80	$4.50	$3.20	'	'	'
Unrecognized tax benefits that would impact effective tax rate	4.9	4.6	4.9	'	'	4.8	4.5	'	'	'	'
Effective tax rate	244.40%	-8.80%	'	'	33.70%	33.70%	30.30%	'	18.00%	26.50%	26.50%
U.S. federal statutory rate	35.00%	35.00%	'	'	'	35.00%	35.00%	'	35.00%	'	35.00%
Capital loss carryforwards will expire	'	'2 years	'	'	'	'	'	'	'	'	'
Deferred tax liabilities, undistributed foreign earnings	49.7	57.1	49.7	'	'	32.2	22.9	'	'	'	'
Operating loss carry forward expiration period	'	'20 years	'	'	'	'	'	'	'	'	'
Income Taxes (Additional Textual) [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Provision benefit for income taxes discontinued operations	'	'	'	'	'	'	'	'	'	'	0.1
Valuation allowance increased	'	1.3	'	'	'	'	'	'	'	'	'
Valuation allowance	27.2	25.9	27.2	'	'	27.2	25.9	'	'	'	'
Foreign loss and credit carryforwards will expire	'	'10 years	'	'	'	'	'	'	'	'	'
Accrued interest payable for taxes	0.5	0.7	0.5	'	'	'	'	'	'	'	'
Significant expense recognized, or significant liability recorded, for tax penalties	'	0	0	'	'	'	'	'	'	'	'
Undistributed earnings of foreign subsidiaries	'	$67.30	'	'	'	'	'	'	'	'	'

StockBased_Compensation_Detail

Stock-Based Compensation (Details) (USD $)

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

In Millions, except Share data, unless otherwise specified

Equity Option [Member]

Equity Option [Member]

Equity Option [Member]

Equity Option [Member]

Equity Option [Member]

Equity Option [Member]

Equity Option [Member]

Equity Option [Member]

Equity Option [Member]

Equity Option [Member]

Equity Option [Member]

Equity Option [Member]

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

Service Condition Option [Member]

Service Condition Option [Member]

Service Condition Option [Member]

Service Condition Option [Member]

Market Condition Option [Member]

Market Condition Option [Member]

Market Condition Option [Member]

Market Condition Option [Member]

Transunion Corp [Member]

Transunion Corp [Member]

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based compensation arrangement by share-based payment award, options, outstanding, number

'

6,532,809

7,106,389

'

'

'

'

'

'

'

'

'

'

Share-based compensation, shares authorized under stock option plans, exercise price range, exercisable options, weighted average exercise price

'

$6.65

$7.46

'

'

'

'

'

'

'

'

'

'

Share-based compensation arrangement by share-based payment award, options, outstanding, weighted average remaining contractual term

'

'

'8 years 9 months

'

'

'

'

'

'

'

'

'

'

Share-based compensation arrangement by share-based payment award, options, outstanding, intrinsic value

'

'

$28.20

'

'

'

'

'

'

'

'

'

'

Share-based compensation arrangement by share-based payment award, options, vested and expected to vest, outstanding, number

'

'

6,597,718

'

'

'

'

'

'

'

'

'

'

Share-based compensation arrangement by share-based payment award, options, vested and expected to vest, outstanding, weighted average exercise price

'

'

$7.46

'

'

'

'

'

'

'

'

'

'

Share-based compensation arrangement by share-based payment award, fair value assumptions, expected dividend rate

'

'

'

'

'

0.00%

0.00%

0.00%

0.00%

'

'

'

'

Share-based compensation arrangement by share-based payment award, fair value assumptions, expected volatility rate

'

'

'

'

'

59.00%

'

30.00%

30.00%

'

'

'

'

Stock option activity consisted of the following:

'

'

'

'

'

'

'

'

'

'

'

'

'

Beginning, aggregate intrinsic value

'

0

0.3

0

0.1

'

'

'

'

'

'

'

'

Shares, granted

'

'

1,601,152

'

'

'

'

'

'

'

'

'

'

Weighted average exercise price, granted

'

'

$10.23

'

'

'

'

'

'

'

'

'

'

Shares, exercised

'

'

-97,356

'

'

'

'

'

'

'

'

'

'

Weighted average exercise price, exercised

'

'

$6.65

'

'

'

'

'

'

'

'

'

'

Shares, forfeited

'

'

-929,688

'

'

'

'

'

'

'

'

'

'

Weighted average exercise price, forfeited

'

'

$6.65

'

'

'

'

'

'

'

'

'

'

Shares, expired

'

'

-528

'

'

'

'

'

'

'

'

'

'

Weighted average exercise price, expired

'

'

$6.65

'

'

'

'

'

'

'

'

'

'

Ending, aggregate intrinsic value

'

0

0.3

0

0.1

'

'

'

'

'

'

'

'

Shares, exercisable vested and expected to vest

'

'

587,669

'

'

'

'

'

'

'

'

'

'

Exercisable vested and expected to vest, weighted average exercise price

'

'

$6.65

'

'

'

'

'

'

'

'

'

'

Share-based compensation arrangement by share-based payment award, options, exercisable, weighted average remaining contractual term

'

'

'8 years 8 months

'

'

'

'

'

'

'

'

'

'

Exercisable vested and expected to vest, weighted average remaining contractual term

'

'

'8 years 9 months

'

'

'

'

'

'

'

'

'

'

Exercisable vested and expected to vest, aggregate intrinsic value

$2.80

'

$26.20

'

'

'

'

'

'

'

'

'

'

Risk-free rate of return

'

'

'

'

'

0.89%

'

2.40%

'

'

'

'

'

Share-based compensation arrangement by share-based payment award, fair value assumptions, expected term

'

'

'

'

'

'6 years 2 months 9 days

'5 years 10 months 6 days

'6 years 6 months

'6 years 6 months

'

'

'

'

Share-based compensation arrangement by share-based payment award, options, grants in period, weighted average grant date fair value

'

'

'

'

'

$4.97

$5.61

$15.74

$10.24

$4.08

$5.19

$15.15

$5.42

Stock_Based_Compensation_Detai

Stock Based Compensation (Details 1) (USD $)

10 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

10 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

In Millions, except Share data, unless otherwise specified

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2011

Dec. 31, 2013

Dec. 31, 2011

Equity Option [Member]

Equity Option [Member]

Restricted Stock [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Service Condition Option [Member]

Service Condition Option [Member]

Service Condition Option [Member]

Service Condition Option [Member]

Minimum [Member]

Minimum [Member]

Maximum [Member]

Maximum [Member]

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

Equity Option [Member]

Equity Option [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Service Condition Option [Member]

Service Condition Option [Member]

Service Condition Option [Member]

Service Condition Option [Member]

Equity Option [Member]

Equity Option [Member]

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

Equity Option [Member]

Equity Option [Member]

Equity Option [Member]

Equity Option [Member]

Equity Option [Member]

Equity Option [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Intrinsic value of stock options exercised

$0

$0.30

'

$0

$0.10

'

'

'

'

'

'

'

'

Share-based compensation arrangement by share-based payment award, fair value assumptions, expected volatility rate

'

'

'

'

'

59.00%

'

30.00%

30.00%

60.00%

'

70.00%

'

Share-based compensation arrangement by share-based payment award, options, grants in period, gross

'

1,601,152

'

'

'

'

'

'

'

'

'

'

'

Restricted stock activity consisted of the following:

'

'

'

'

'

'

'

'

'

'

'

'

'

Beginning balance, shares

'

'

25,082

'

'

'

'

'

'

'

'

'

'

Beginning balance, weighted average grant date fair value

'

'

$6.65

'

'

'

'

'

'

'

'

'

'

Shares, granted

'

'

0

'

'

'

'

'

'

'

'

'

'

Weighted average grant date fair value, granted

'

'

$0

'

'

'

'

'

'

'

'

'

'

Shares, vested

'

'

0

'

'

'

'

'

'

'

'

'

'

Weighted average grant date fair value, vested

'

'

$0

'

'

'

'

'

'

'

'

'

'

Shares, forfeited

'

'

0

'

'

'

'

'

'

'

'

'

'

Weighted average grant date fair value, forfeited

'

'

$0

'

'

'

'

'

'

'

'

'

'

Ending balance, shares

'

'

25,082

'

'

'

'

'

'

'

'

'

'

Ending Balance, weighted average grant date fair value

'

'

$6.65

'

'

'

'

'

'

'

'

'

'

Risk-free rate of return

'

'

'

'

'

0.89%

'

2.40%

'

0.86%

2.40%

0.97%

2.77%

Share-based compensation arrangement by share-based payment award, fair value assumptions, expected term

'

'

'

'

'

'6 years 2 months 9 days

'5 years 10 months 6 days

'6 years 6 months

'6 years 6 months

'

'

'6 years 1 month 2 days

'

Total fair value of options vested

$0

$3.70

'

$18.20

$2.70

'

'

'

'

'

'

'

'

Stock_Based_Compensation_Detai1

Stock Based Compensation (Details Textual) (USD $)

3 Months Ended

10 Months Ended

12 Months Ended

12 Months Ended

10 Months Ended

12 Months Ended

12 Months Ended

3 Months Ended

10 Months Ended

12 Months Ended

10 Months Ended

12 Months Ended

10 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

In Millions, except Share data, unless otherwise specified

Dec. 31, 2012

Mar. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Nov. 01, 2012

Dec. 31, 2013

Dec. 31, 2012

Nov. 09, 2012

Nov. 01, 2012

Dec. 31, 2012

Dec. 31, 2013

Nov. 09, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Nov. 09, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2012

Dec. 31, 2011

Apr. 30, 2012

Dec. 31, 2011

Apr. 30, 2012

Dec. 31, 2011

Apr. 30, 2012

Dec. 31, 2011

Restricted Stock [Member]

Restricted Stock [Member]

Restricted Stock [Member]

Restricted Stock [Member]

Stock Appreciation Rights [Member]

Stock Appreciation Rights [Member]

Stock Appreciation Rights [Member]

Stock Appreciation Rights [Member]

Stock Appreciation Rights [Member]

Stock Option [Member]

Stock Option [Member]

Stock Option [Member]

Stock Option [Member]

Stock Option [Member]

Stock Option [Member]

Stock Option [Member]

Stock Option [Member]

Maximum [Member]

Maximum [Member]

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

Service Condition Option [Member]

Market Condition Option [Member]

Service Condition Option [Member]

Service Condition Option [Member]

Market Condition Option [Member]

Market Condition Option [Member]

Stock Option [Member]

Stock Option [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

TransUnion Corp [Member]

Service Condition Option [Member]

Service Condition Option [Member]

Stock Option [Member]

Stock Option [Member]

Stock Option [Member]

Stock Option [Member]

Stock Option [Member]

Stock Option [Member]

Service Condition Option [Member]

Service Condition Option [Member]

Market Condition Option [Member]

Market Condition Option [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock issued during period, shares, restricted stock award, net of forfeitures

'

'

'

'

'

'

25,082

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock Based Compensation (Textual) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock-based compensation expense

'

'

$3

$6.90

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$2.60

$6.90

$90

'

$4.60

'

'

'

'

'

'

Income tax benefit

'

'

1.1

2.5

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.9

2.5

32.4

'

1.7

'

'

'

'

'

'

Additional stock-based compensation expense

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

88

'

'

'

'

'

'

'

'

Additional stock-based compensation expense

2.8

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Additional stock based compensation net of tax recognized in connection with current year change in control transaction

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

31.7

'

'

'

'

'

'

'

'

Shares authorized for grant

'

'

'

8,900,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Term of Stock option and SARs

'

'

'

'

'

'

'

'

'

'

'10 years

'

'

'

'

'

'10 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Special dividend paid

'

'

'

'

$3.41

'

'

'

$3.41

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Exercise price of Stock option and SARs

'

'

'

'

'

$10.07

'

'

'

'

$10.07

'

'

'

'

'

'

$10.07

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Exercise price of Stock option and SARs after modification

'

'

'

'

'

'

'

$6.65

'

'

'

$6.65

'

'

'

'

'

$6.65

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of stock options and stock appreciation rights vest granted based on service condition award

'

'

'

'

'

'

'

'

'

'

'

'

40.00%

'

'

'

'

'

'

40.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Percentage of stock options and stock appreciation rights vest granted based on market condition award

'

'

'

'

'

'

'

'

'

'

'

'

'

60.00%

'

'

'

'

'

'

'

60.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

Service condition awards vesting percentage on either the first anniversary or one year after the grant date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

20.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

One year after the grant date control transaction

'

'

'

'

'

'

'

'

'

'

'

'

'

'

5.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Existing option holders received in cash consideration for the value of their options

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

91.2

'

'

'

'

'

'

'

Share-based compensation arrangement by share-based payment award, options, grants in period, weighted average grant date fair value

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$4.97

$5.61

$4.08

$5.19

'

'

'

'

'

'

'

'

'

$15.74

$10.24

$15.15

$5.42

Expected volatility

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

59.00%

'

'

'

70.00%

'

'

'

'

'

'

'

'

30.00%

30.00%

'

'

Risk-free rate of return

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.89%

'

'

'

0.97%

2.77%

'

'

'

'

'

'

'

2.40%

'

'

'

Stock options exercised

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

97,356

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Intrinsic value of stock options exercised

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0

0.3

'

'

'

'

'

'

'

'

'

'

'

'

0

0.1

'

'

'

'

Stock-based compensation expense remaining to be recognized in future years for service condition options

'

'

'

'

'

'

'

'

'

'

2.3

'

'

'

'

'

'

'

'

11.7

'

15.5

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares, granted

'

'

'

'

'

'

'

'

'

900,000

100,000

'

'

'

'

'

1,601,152

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based compensation, shares authorized under stock option plans, exercise price range, outstanding options, weighted average exercise price

'

'

'

'

'

'

'

'

'

$6.65

$9.52

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock-based compensation expense remaining to be recognized with a weighted-average recognition period for service condition options

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'3 years 10 months 20 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock-based compensation expense remaining to be recognized with a weighted-average recognition period for market condition options

'

'

'

'2 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'3 years 6 months

'

'

'

'

'

'

'

'

'

'

'

'

'

Employee service share-based compensation, cash received from exercise of stock options

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

0.4

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Employee service share-based compensation, tax benefit realized from exercise of stock options

'

'

'

0.1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Shares, granted

'

'

'

'

'

0

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Vesting period for restricted stock granted

'

'3 years

'

'

'

'

'

'

'

'

'

'

'5 years

'5 years

'

'

'

'

'

'5 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Total fair value of restricted stock vested

'

'

'

'

'

0

'

'

'

'

100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based compensation arrangement by share-based payment award, equity instruments other than options, forfeited in period

'

'

'

'

'

0

'

'

'

'

200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Stock issued during period, shares, share-based compensation, gross

'

'

'

'

'

'

'

'

'

'

100,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Share-based compensation arrangement by share-based payment award, equity instruments other than options, share-based liabilities paid

'

'

'

'

'

'

'

'

'

'

0.1

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Employee service share-based compensation, nonvested awards, compensation not yet recognized, share-based awards other than options

'

'

'

'

'

$0.20

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair_Value_Details

Fair Value (Details) (USD $)	Apr. 30, 2012	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2013	Dec. 31, 2013	Sep. 30, 2013	Sep. 04, 2013
In Millions, unless otherwise specified		Fair Value, Recurring [Member]	Level 1 [Member]	Level 2 [Member]	Level 3 [Member]	eScan Data Systems, Inc. [Member]	eScan Data Systems, Inc. [Member]	eScan Data Systems, Inc. [Member]
			Fair Value, Recurring [Member]	Fair Value, Recurring [Member]	Fair Value, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'	'	'	'	'	'
Business acquisition, percentage of voting interests acquired	100.00%	'	'	'	'	'	'	100.00%
Financial instruments measured at fair value, on a recurring basis	'	'	'	'	'	'	'	'
Trading securities	'	$9.90	$9.90	$0	$0	'	'	'
Interest rate swaps	'	-1	0	-1	0	'	'	'
Total financial instruments at fair value	'	8.9	9.9	-1	0	'	'	'
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	'	'	'	'	'	'	17	'
Business Combination, Contingent Consideration, Liability	'	'	'	'	'	$2.20	'	'

Operating_Segments_Details

Operating Segments (Details) (USD $)

3 Months Ended

10 Months Ended

12 Months Ended

2 Months Ended

3 Months Ended

8 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

1 Months Ended

3 Months Ended

4 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Dec. 31, 2012

Dec. 31, 2013

Jun. 30, 2012

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Mar. 31, 2012

Apr. 30, 2012

Dec. 31, 2011

Apr. 30, 2012

Dec. 31, 2011

Apr. 30, 2012

Dec. 31, 2011

Apr. 30, 2012

Dec. 31, 2011

Apr. 30, 2012

Dec. 31, 2011

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

U.S. Information Services [Member]

U.S. Information Services [Member]

International [Member]

International [Member]

Interactive [Member]

Interactive [Member]

Corporate [Member]

Corporate [Member]

U.S. Information Services [Member]

U.S. Information Services [Member]

International [Member]

International [Member]

Interactive [Member]

Interactive [Member]

Corporate [Member]

Corporate [Member]

Financial information by segments

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Revenue

'

'

'

'

'

'

'

$767

$1,183.20

'

'

'

'

'

'

'

$767

$1,183.20

$487.40

$740.60

$157.80

$238.90

$121.80

$203.70

'

'

'

'

$373

$1,024

$238.10

$660.10

$76.60

$216.10

$58.30

$147.80

'

'

Operating income

36.3

49.3

39.5

44.2

43.4

61.3

36.5

[1]

141.2

169.2

37

[2]

36.5

49.7

39.8

44.5

43.6

61.6

142.1

170.5

121.9

154.7

19.1

19.5

48.7

65.6

-47.6

-69.3

-65.8

[2]

65.6

[2]

-0.2

252.7

33.2

185.8

5.3

66.7

13

56.5

-51.7

-56.3

Non-operating income and expense

'

'

'

'

'

'

'

-138.5

-195.1

'

'

'

'

'

'

'

-69.9

-98.6

'

'

'

'

'

'

'

'

'

'

-63.7

-185.6

'

'

'

'

'

'

'

'

Income (loss) before income taxes

'

'

'

'

'

'

'

$2.70

($25.90)

'

'

'

'

'

'

'

$72.20

$71.90

'

'

'

'

'

'

'

'

'

'

($63.90)

$67.10

'

'

'

'

'

'

'

'

[1]

The financial results of TransUnion Holding include the consolidated results of TransUnion Corp subsequent to April 30, 2012, the date of acquisition. See Note 1, “Significant Accounting and Reporting Policies,” and Note 2, “Change in Control Transaction,” for further information. For the period of inception through March 31, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $7.0 million of acquisition fees related to the 2012 Change in Control Transaction. For the three months ended June 30, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $8.2 million of acquisition fees related to the 2012 Change in Control Transaction.

[2]

For the three months ended March 31, 2012, net income (loss) and net income (loss) attributable to TransUnion Corp included $2.6 million of acquisition fees related to the 2012 Change in Control Transaction. For the one month ended April 30, 2012, net income (loss) and net income (loss) attributable to TransUnion Corp included $18.3 million of acquisition fees related to the 2012 Change in Control Transaction. For the one month ended April 30, 2012, operating income (loss), net income (loss) and net income (loss) attributable to TransUnion Corp all included $90.0 million of accelerated stock-based compensation and related expense as a result of the 2012 Change in Control Transaction. For the two months ended June 30, 2012, operating income (loss), net income (loss) and net income (loss) attributable to TransUnion Corp all included $0.3 million of accelerated stock-based compensation and related expense as a result of the 2012 Change in Control Transaction.

Operating_Segments_Details_1

Operating Segments (Details 1) (USD $)	3 Months Ended								10 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012		Dec. 31, 2012	Dec. 31, 2013
Reconciliation of operating income (loss) to income from continuing operations before income tax:	'	'	'	'	'	'	'		'	'
Operating income from segments	$36.30	$49.30	$39.50	$44.20	$43.40	$61.30	$36.50	[1]	$141.20	$169.20
Non-operating income and expense	'	'	'	'	'	'	'		-138.5	-195.1
Income (loss) from continuing operations before income taxes	'	'	'	'	'	'	'		$2.70	($25.90)
[1]	The financial results of TransUnion Holding include the consolidated results of TransUnion Corp subsequent to April 30, 2012, the date of acquisition. See Note 1, “Significant Accounting and Reporting Policies,” and Note 2, “Change in Control Transaction,” for further information. For the period of inception through March 31, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $7.0 million of acquisition fees related to the 2012 Change in Control Transaction. For the three months ended June 30, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $8.2 million of acquisition fees related to the 2012 Change in Control Transaction.

Operating_Segments_Details_2

Operating Segments (Details 2) (USD $)

10 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

U.S. Information Services [Member]

U.S. Information Services [Member]

U.S. Information Services [Member]

U.S. Information Services [Member]

International [Member]

International [Member]

International [Member]

International [Member]

Interactive [Member]

Interactive [Member]

Interactive [Member]

Interactive [Member]

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

Other income and expense, net, included earnings (losses) from equity method investments

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Other income and expense, net from equity method investments

$8

$13.70

$8

$13.70

$4.10

$11.40

$0.90

$1.40

$0.50

$1.10

$7.10

$12.30

$3.60

$10.30

$0

$0

$0

$0

Operating_Segments_Details_3

Operating Segments (Details 3) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Property, plant and equipment, net of accumulated depreciation and amortization, by segment	'	'
Assets	$4,492.30	$4,378.80
Transunion Corp [Member] | TransUnion Corp-Successor	'	'
Property, plant and equipment, net of accumulated depreciation and amortization, by segment	'	'
Assets	4,471.80	4,320.70
Transunion Corp [Member] | TransUnion Corp-Successor | U.S. Information Services [Member]	'	'
Property, plant and equipment, net of accumulated depreciation and amortization, by segment	'	'
Assets	2,894.70	2,685.30
Transunion Corp [Member] | TransUnion Corp-Successor | International [Member]	'	'
Property, plant and equipment, net of accumulated depreciation and amortization, by segment	'	'
Assets	1,166.80	1,199
Transunion Corp [Member] | TransUnion Corp-Successor | Interactive [Member]	'	'
Property, plant and equipment, net of accumulated depreciation and amortization, by segment	'	'
Assets	268.3	271.9
Transunion Corp [Member] | TransUnion Corp-Successor | Corporate [Member]	'	'
Property, plant and equipment, net of accumulated depreciation and amortization, by segment	'	'
Assets	$142	$164.50

Operating_Segments_Details_4

Operating Segments (Details 4) (USD $)

10 Months Ended

12 Months Ended

4 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

8 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2012

Dec. 31, 2013

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

U.S. Information Services [Member]

U.S. Information Services [Member]

U.S. Information Services [Member]

International [Member]

International [Member]

International [Member]

Interactive [Member]

Interactive [Member]

Interactive [Member]

Corporate [Member]

Corporate [Member]

Corporate [Member]

Cash paid for capital expenditures, by segment

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Payments to acquire property, plant, and equipment

$48.80

$81.70

$20.40

$48.80

$81.70

$14.30

$30.80

$46.90

$2.40

$8.60

$17.10

$1.30

$2.80

$3.90

$2.40

$6.60

$13.80

Operating_Segments_Details_5

Operating Segments (Details 5) (USD $)

10 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Apr. 30, 2012

Dec. 31, 2011

Apr. 30, 2012

Dec. 31, 2011

Apr. 30, 2012

Dec. 31, 2011

Apr. 30, 2012

Dec. 31, 2011

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

U.S. Information Services [Member]

U.S. Information Services [Member]

International [Member]

International [Member]

Interactive [Member]

Interactive [Member]

Corporate [Member]

Corporate [Member]

U.S. Information Services [Member]

U.S. Information Services [Member]

International [Member]

International [Member]

Interactive [Member]

Interactive [Member]

Corporate [Member]

Corporate [Member]

Depreciation and amortization expense of continuing operations, by segment

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Depreciation and amortization expense of continuing operations, by segment

$115

$186.80

$115

$186.80

$78.90

$129.30

$25.80

$39.90

$5.20

$8.90

$5.10

$8.70

$29.20

$85.30

$22.30

$66.90

$3.70

$7.80

$1.30

$4.30

$1.90

$6.30

Operating_Segments_Details_6

Operating Segments (Details 6) (Transunion Corp [Member])

8 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

United States [Member]

United States [Member]

United States [Member]

United States [Member]

South Africa [Member]

South Africa [Member]

South Africa [Member]

South Africa [Member]

Canada [Member]

Canada [Member]

Canada [Member]

Canada [Member]

Other Country [Member]

Other Country [Member]

Other Country [Member]

Other Country [Member]

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

Revenue based on the country

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Revenue earned

79.00%

80.00%

79.00%

79.00%

7.00%

6.00%

8.00%

9.00%

5.00%

5.00%

6.00%

6.00%

9.00%

9.00%

7.00%

6.00%

Operating_Segments_Details_7

Operating Segments (Details 7) (Transunion Corp [Member])

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2011

Dec. 31, 2011

Dec. 31, 2011

Dec. 31, 2011

Successor [Member]

Successor [Member]

Successor [Member]

Successor [Member]

Successor [Member]

Successor [Member]

Successor [Member]

Successor [Member]

Predecessor [Member]

Predecessor [Member]

Predecessor [Member]

Predecessor [Member]

United States [Member]

United States [Member]

South Africa [Member]

South Africa [Member]

Canada [Member]

Canada [Member]

Other Country [Member]

Other Country [Member]

United States [Member]

South Africa [Member]

Canada [Member]

Other Country [Member]

Long-lived assets, other than financial instruments and deferred tax assets, based on the location of the legal entity that owns the asset

'

'

'

'

'

'

'

'

'

'

'

'

Long-lived assets, other than financial instruments and deferred tax assets

85.00%

81.00%

3.00%

5.00%

3.00%

4.00%

9.00%

10.00%

80.00%

5.00%

2.00%

13.00%

Operating_Segments_Details_Tex

Operating Segments (Details Textual) (USD $)	3 Months Ended								10 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012		Dec. 31, 2012	Dec. 31, 2013
										Segment
Operating Segments (Textual) [Abstract]	'	'	'	'	'	'	'		'	'
Number of operating segments	'	'	'	'	'	'	'		'	3
Non-operating income and expense	'	'	'	'	'	'	'		($138.50)	($195.10)
Revenue	'	'	'	'	'	'	'		767	1,183.20
Operating income	36.3	49.3	39.5	44.2	43.4	61.3	36.5	[1]	141.2	169.2
Assets	4,492.30	'	'	'	4,378.80	'	'		4,378.80	4,492.30
Capital expenditures	'	'	'	'	'	'	'		48.8	81.7
Depreciation and amortization	'	'	'	'	'	'	'		115	186.8
Equity method investments	84.5	'	'	'	80.7	'	'		80.7	84.5
Number of market groups in the international segment	'	'	'	'	'	'	'		'	2
TransUnion Holding Company Inc Stand Alone [Member]	'	'	'	'	'	'	'		'	'
Operating Segments (Textual) [Abstract]	'	'	'	'	'	'	'		'	'
Non-operating income and expense	'	'	'	'	'	'	'		68.6	96.5
Revenue	'	'	'	'	'	'	'		0	0
Operating income	'	'	'	'	'	'	'		0.9	1.3
Capital expenditures	'	'	'	'	'	'	'		'	0
Depreciation and amortization	'	'	'	'	'	'	'		'	0
Long-lived assets other than the long-lived	0	'	'	'	'	'	'		'	0
Equity method investments	0	'	'	'	'	'	'		'	0
Corporate [Member] | TransUnion Holding Company Inc Stand Alone [Member]	'	'	'	'	'	'	'		'	'
Operating Segments (Textual) [Abstract]	'	'	'	'	'	'	'		'	'
Assets	$20.50	'	'	'	$58.10	'	'		$58.10	$20.50
[1]	The financial results of TransUnion Holding include the consolidated results of TransUnion Corp subsequent to April 30, 2012, the date of acquisition. See Note 1, “Significant Accounting and Reporting Policies,” and Note 2, “Change in Control Transaction,” for further information. For the period of inception through March 31, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $7.0 million of acquisition fees related to the 2012 Change in Control Transaction. For the three months ended June 30, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $8.2 million of acquisition fees related to the 2012 Change in Control Transaction.

Commitments_Details

Commitments (Details) (USD $)	Dec. 31, 2013
In Millions, unless otherwise specified
Summary of future minimum payments for noncancelable operating leases, purchase obligations and other liabilities	'
Operating Leases, 2014	$11.30
Operating Leases, 2015	8.7
Operating Leases, 2016	7.1
Operating Leases, 2017	5.9
Operating Leases, 2018	5.5
Operating Leases, Thereafter	10.3
Totals, Operating Leases	48.8
Purchase Obligations, 2014	174.8
Purchase Obligations, 2015	29
Purchase Obligations, 2016	14.2
Purchase Obligations, 2017	8.5
Purchase Obligations, 2018	5.9
Purchase Obligations, Thereafter	3.2
Totals, Purchase Obligations	235.6
Total, 2014	186.1
Total, 2015	37.7
Total, 2016	21.3
Total, 2017	14.4
Total, 2018	11.4
Total, Thereafter	13.5
Totals	$284.40

Commitments_Details_Textual

Commitments (Details Textual) (USD $)	8 Months Ended	12 Months Ended		4 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2013	Apr. 30, 2012	Dec. 31, 2011
			TransUnion Holding Company, Inc. [Member]	TransUnion Corp-Predecessor	TransUnion Corp-Predecessor
Commitments (Textual) [Abstract]	'	'	'	'	'
Rental expense	$7.40	$11	'	$3.70	$13.80
Operating lease other than of TransUnion Corp	'	48.8	0	'	'
Commitments (Additional Textual) [Abstract]	'	'	'	'	'
Trade accounts payable	78.4	100.3	'	'	'
Minimum payment under licensing agreements	'	$0	'	'	'

Contingencies_Details

Contingencies (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012
In Millions, unless otherwise specified
Contingencies (Textual) [Abstract]	'	'
Anticipated claims of continuing operations related to TransUnion Corp	$13.80	$5.60

RelatedParty_Transactions_Deta

Related-Party Transactions (Details) (USD $)

2 Months Ended

3 Months Ended

10 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

4 Months Ended

10 Months Ended

12 Months Ended

10 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

0 Months Ended

0 Months Ended

In Millions, except Share data, unless otherwise specified

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2012

Apr. 30, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2012

Apr. 30, 2012

Dec. 31, 2013

Oct. 14, 2013

Aug. 28, 2013

Aug. 27, 2012

Aug. 30, 2013

Dec. 21, 2012

Jan. 07, 2013

Mar. 26, 2013

Dec. 31, 2012

Neal Gerber and Eisenberg LLP [Member]

Neal Gerber and Eisenberg LLP [Member]

Neal Gerber and Eisenberg LLP [Member]

Latham and Watkins LLP [Member]

Latham and Watkins LLP [Member]

Latham and Watkins LLP [Member]

Pritzker Family US Situs Trusts [Member]

Advent International Corporation [Member]

Advent International Corporation [Member]

Advent International Corporation [Member]

Goldman Sachs and Company [Member]

Goldman Sachs and Company [Member]

Director [Member]

Affiliates of Goldman Sachs & Co [Member]

Affiliates of Goldman Sachs & Co [Member]

Pritzker family business interests [Member]

Pritzker family business interests [Member]

Vice President [Member]

Vice President [Member]

Vice President [Member]

Vice President [Member]

Vice President [Member]

President [Member]

President [Member]

President [Member]

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

Related Party Transactions (Textual) [Abstract]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Advisory fee

'

'

'

$0.30

'

'

'

'

'

'

'

'

'

'

'

'

'

$0.20

'

'

'

'

'

'

'

'

'

'

'

'

Annual increase in advisor fee to GSC & Advent

'

'

'

5.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Related party transaction, expenses from transactions with related party

'

'

'

'

'

'

'

'

'

'

'

'

0.1

0.3

'

0.1

0.3

'

'

'

'

'

'

'

'

'

'

'

'

'

Acquisition costs

8.2

7

15.2

3.7

36.5

'

'

'

'

'

'

'

'

'

0.2

'

'

'

11.9

1.4

'

'

'

'

'

'

'

'

'

'

Legal services

'

'

'

'

'

0.5

0.1

1.3

0.4

3.5

4.4

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Beneficially owned excess

'

'

'

'

'

'

'

'

'

'

'

5.00%

'

'

'

'

'

'

'

'

5.00%

'

'

'

'

'

'

'

'

'

Other liabilities

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$3.20

'

'

'

'

'

'

'

'

Common stock, shares issued

'

'

110,200,000

110,700,000

110,200,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

87,566

225,563

'

26,326

199,237

Purchase price of common shares

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$11.42

$6.65

'

$6.65

$6.65

Aggregate purchase of common stock

'

'

'

400,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

33,410

76,213

69,625

'

'

297,955

'

'

Purchase price of aggregate common stock

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

$11.42

$11.42

$10.07

'

'

$6.65

'

'

Quarterly_Financial_Data_Unaud2

Quarterly Financial Data (Unaudited) (Details) (USD $)	3 Months Ended										10 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2012	Dec. 31, 2013
Summary of quarterly financial data	'	'	'	'	'	'	'		'		'	'
Revenue	$292.40	$299.50	$300.80	$290.50	$284.40	$291.70	$190.90	[1]	'		'	'
Operating income	36.3	49.3	39.5	44.2	43.4	61.3	36.5	[1]	'		141.2	169.2
Net loss	-15.7	-1.4	-6.1	-5	-6.7	13.5	-2.3	[1]	-8.5	[1],[2]	-3.9	-28.2
Net income (loss) attributable to TransUnion Corp.	($17.60)	($3.40)	($7.80)	($6.30)	($8.20)	$11.30	($3.50)	[1]	($8.50)	[1],[2]	($8.80)	($35.10)
[1]	The financial results of TransUnion Holding include the consolidated results of TransUnion Corp subsequent to April 30, 2012, the date of acquisition. See Note 1, “Significant Accounting and Reporting Policies,” and Note 2, “Change in Control Transaction,” for further information. For the period of inception through March 31, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $7.0 million of acquisition fees related to the 2012 Change in Control Transaction. For the three months ended June 30, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $8.2 million of acquisition fees related to the 2012 Change in Control Transaction.
[2]	Period is from inception of TransUnion Holding, February 15, 2012, through March 31, 2012.

Quarterly_Financial_Data_Unaud3

Quarterly Financial Data (Unaudited) (Details 1) (USD $)	3 Months Ended										10 Months Ended	12 Months Ended	2 Months Ended		3 Months Ended						8 Months Ended	12 Months Ended	1 Months Ended		3 Months Ended		4 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2012	Dec. 31, 2013	Jun. 30, 2012		Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2012	Dec. 31, 2013	Apr. 30, 2012		Mar. 31, 2012		Apr. 30, 2012	Dec. 31, 2011
													Transunion Corp [Member]		Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]		Transunion Corp [Member]		Transunion Corp [Member]	Transunion Corp [Member]
													TransUnion Corp-Successor		TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Predecessor		TransUnion Corp-Predecessor		TransUnion Corp-Predecessor	TransUnion Corp-Predecessor
Summary of quarterly financial data	'	'	'	'	'	'	'		'		'	'	'		'	'	'	'	'	'	'	'	'		'		'	'
Revenue	$292.40	$299.50	$300.80	$290.50	$284.40	$291.70	$190.90	[1]	'		'	'	$190.90	[2]	$292.40	$299.50	$300.80	$290.50	$284.40	$291.70	'	'	$92.40	[2]	$280.60	[2]	'	'
Operating income	36.3	49.3	39.5	44.2	43.4	61.3	36.5	[1]	'		141.2	169.2	37	[2]	36.5	49.7	39.8	44.5	43.6	61.6	142.1	170.5	-65.8	[2]	65.6	[2]	-0.2	252.7
Net loss	-15.7	-1.4	-6.1	-5	-6.7	13.5	-2.3	[1]	-8.5	[1],[3]	-3.9	-28.2	10.8	[2]	7.2	19.5	11.9	11.5	14.1	23	47.9	50.1	-64.5	[2]	12.1	[2]	-52.4	48.8
Net income (loss) attributable to TransUnion Corp.	($17.60)	($3.40)	($7.80)	($6.30)	($8.20)	$11.30	($3.50)	[1]	($8.50)	[1],[3]	($8.80)	($35.10)	$9.60	[2]	$5.30	$17.50	$10.20	$10.20	$12.60	$20.80	$43	$43.20	($65.10)	[2]	$10.20	[2]	($54.90)	$40.80
[1]	The financial results of TransUnion Holding include the consolidated results of TransUnion Corp subsequent to April 30, 2012, the date of acquisition. See Note 1, “Significant Accounting and Reporting Policies,” and Note 2, “Change in Control Transaction,” for further information. For the period of inception through March 31, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $7.0 million of acquisition fees related to the 2012 Change in Control Transaction. For the three months ended June 30, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $8.2 million of acquisition fees related to the 2012 Change in Control Transaction.
[2]	For the three months ended March 31, 2012, net income (loss) and net income (loss) attributable to TransUnion Corp included $2.6 million of acquisition fees related to the 2012 Change in Control Transaction. For the one month ended April 30, 2012, net income (loss) and net income (loss) attributable to TransUnion Corp included $18.3 million of acquisition fees related to the 2012 Change in Control Transaction. For the one month ended April 30, 2012, operating income (loss), net income (loss) and net income (loss) attributable to TransUnion Corp all included $90.0 million of accelerated stock-based compensation and related expense as a result of the 2012 Change in Control Transaction. For the two months ended June 30, 2012, operating income (loss), net income (loss) and net income (loss) attributable to TransUnion Corp all included $0.3 million of accelerated stock-based compensation and related expense as a result of the 2012 Change in Control Transaction.
[3]	Period is from inception of TransUnion Holding, February 15, 2012, through March 31, 2012.

Quarterly_Financial_Data_Unaud4

Quarterly Financial Data (Unaudited) (Details Textual) (USD $)	2 Months Ended	3 Months Ended	10 Months Ended	12 Months Ended		1 Months Ended	3 Months Ended	4 Months Ended	2 Months Ended	8 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012	Mar. 31, 2012	Apr. 30, 2012	Jun. 30, 2012	Dec. 31, 2012
						Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]
						TransUnion Corp-Predecessor	TransUnion Corp-Predecessor	TransUnion Corp-Predecessor	Successor [Member]	Successor [Member]
Quarterly Financial Data (Textual) [Abstract]	'	'	'	'	'	'	'	'	'	'
Acquisition fees	$8.20	$7	$15.20	$3.70	$36.50	$18.30	$2.60	$20.90	'	$0.40
Accelerated stock-based compensation and related expense	'	'	'	'	'	$90	'	'	$0.30	'

Accumulated_Other_Comprehensiv2

Accumulated Other Comprehensive Income (Loss) (Details) (USD $)	4 Months Ended	8 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Apr. 30, 2012	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2011
Component accumulated other comprehensive income (loss)	'	'	'	'
Foreign currency translation adjustment purchase accounting adjustments	'	$1.40	'	'
Other comprehensive income (loss), net of tax, portion attributable to parent	'	-24.4	-48.8	'
Accumulated other comprehensive income (loss), total	'	-24.4	-73.2	'
Foreign Currency Gain (Loss) [Member]	'	'	'	'
Component accumulated other comprehensive income (loss)	'	'	'	'
Foreign currency translation adjustment purchase accounting adjustments	'	1.4	'	'
Other comprehensive income (loss), net of tax, portion attributable to parent	'	-20.7	-51.9	'
Accumulated other comprehensive income (loss), total	'	-20.7	-72.6	'
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]	'	'	'	'
Component accumulated other comprehensive income (loss)	'	'	'	'
Foreign currency translation adjustment purchase accounting adjustments	'	0	'	'
Other comprehensive income (loss), net of tax, portion attributable to parent	0	-3.7	3.1	'
Accumulated other comprehensive income (loss), total	0	-3.7	-0.6	0
Transunion Corp [Member] | TransUnion Corp-Predecessor	'	'	'	'
Component accumulated other comprehensive income (loss)	'	'	'	'
Other comprehensive income (loss), net of tax, portion attributable to parent	2.2	'	'	'
Accumulated other comprehensive income (loss), total	-1.4	'	'	-3.6
Transunion Corp [Member] | Foreign Currency Gain (Loss) [Member] | TransUnion Corp-Predecessor	'	'	'	'
Component accumulated other comprehensive income (loss)	'	'	'	'
Other comprehensive income (loss), net of tax, portion attributable to parent	2.2	'	'	'
Accumulated other comprehensive income (loss), total	($1.40)	'	'	($3.60)

Financial_Statements_of_Guaran2

Financial Statements of Guarantors (Details) (USD $)	Dec. 31, 2013	Dec. 31, 2012	Feb. 15, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Apr. 30, 2012	Apr. 30, 2012	Dec. 31, 2011	Dec. 31, 2010
In Millions, unless otherwise specified				Parent TransUnion Corp. [Member]	Parent TransUnion Corp. [Member]	Issuers Trans Union LLC and TransUnion Financing Corporation [Member]	Issuers Trans Union LLC and TransUnion Financing Corporation [Member]	Guarantor Subsidiaries [Member]	Guarantor Subsidiaries [Member]	Non-Guarantor Subsidiaries [Member]	Non-Guarantor Subsidiaries [Member]	Eliminations [Member]	Eliminations [Member]	Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]
				TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Successor	TransUnion Corp-Predecessor	TransUnion Corp-Predecessor	TransUnion Corp-Predecessor
Current assets:	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'
Cash and cash equivalents	$111.20	$154.30	$0	$19.30	$75.30	$0	$0	$0	$0	$91.90	$79	$0	$0	$111.20	$154.30	$96.40	$96.40	$107.80	$131.20
Trade accounts receivable, net	165	163.6	'	0	0	95.3	98	26.3	19.5	43.4	46.1	0	0	165	163.6	'	'	'	'
Due from affiliates	'	'	'	0	0	0	0	0	46.2	58.3	56.7	-58.3	-102.9	0	0	'	'	'	'
Other current assets	73.5	82.7	'	36.9	-0.3	37.8	52.7	1.2	-0.7	5.1	7	0	0	81	58.7	'	'	'	'
Total current assets	349.7	400.6	'	56.2	75	133.1	150.7	27.5	65	198.7	188.8	-58.3	-102.9	357.2	376.6	'	'	'	'
Property, plant and equipment, net	150.4	121.2	'	0	0	108.1	95.8	19.2	7.8	23.1	17.6	0	0	150.4	121.2	'	'	'	'
Marketable securities	9.9	11.4	'	0	0	9.9	11.4	0	0	0	0	0	0	9.9	11.4	'	'	'	'
Goodwill	1,909.70	1,804.20	'	0	0	1,145.60	961.6	262.1	324.6	502	518	0	0	1,909.70	1,804.20	'	267.5	275.2	'
Other intangibles, net of accumulated amortization of $227.5 and $86.6	1,934	1,911.60	'	0	0	1,537.40	1,629.60	213.6	75.8	183	206.2	0	0	1,934	1,911.60	'	'	'	'
Other assets	138.6	129.8	'	1,615.50	1,611.80	1,084.10	1,235.20	34.4	17.6	51.9	42.4	-2,675.30	-2,811.30	110.6	95.7	'	'	'	'
Total assets	4,492.30	4,378.80	'	1,671.70	1,686.80	4,018.20	4,084.30	556.8	490.8	958.7	973	-2,733.60	-2,914.20	4,471.80	4,320.70	'	'	'	'
Current liabilities:	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'
Trade accounts payable	100.3	78.4	'	0	0	55.7	43.2	25.3	18.9	19.2	15.4	0	0	100.2	77.5	'	'	'	'
Due to Affiliates	'	'	'	37.9	14.9	1.4	82.5	12	0	'	0	-51.3	-97.4	0	0	'	'	'	'
Current portion of long-term debt	13.8	10.6	'	0	0	12.8	9.5	1	0	7	6.6	-7	-5.5	13.8	10.6	'	'	'	'
Other current liabilities	133.5	129.3	'	62.7	7.9	70.6	68.4	8.4	7.2	26	23.5	0	0	167.7	107	'	'	'	'
Total current liabilities	247.6	218.3	'	100.6	22.8	140.5	203.6	46.7	26.1	52.2	45.5	-58.3	-102.9	281.7	195.1	'	'	'	'
Long-term debt	2,853.10	2,670.30	'	0	0	1,852.80	1,672.30	2	0	6.5	6.5	-6.5	-6.5	1,854.80	1,672.30	'	'	'	'
Deferred taxes	636.9	657.5	'	-13.5	-13.9	542.6	569.1	25.9	1.8	69	88.8	0	0	624	645.8	'	'	'	'
Other liabilities	22.6	21.9	'	0	0	15.3	20.5	5.7	0.2	1.5	0.9	0	0	22.5	21.6	'	'	'	'
Total liabilities	3,760.20	3,568	'	87.1	8.9	2,551.20	2,465.50	80.3	28.1	129.2	141.7	-64.8	-109.4	2,783	2,534.80	'	'	'	'
Redeemable noncontrolling interests	17.6	14.7	'	0	0	0	0	0	0	17.6	14.7	0	0	17.6	14.7	'	'	'	'
Total TransUnion Corp stockholders’ equity	627.9	702.8	'	1,584.60	1,677.90	1,467	1,618.80	476.5	462.7	725.3	723.3	-2,668.80	-2,804.80	1,584.60	1,677.90	'	'	'	'
Noncontrolling interests	86.6	93.3	'	0	0	0	0	0	0	86.6	93.3	0	0	86.6	93.3	'	'	'	'
Total stockholders’ equity	714.5	796.1	'	1,584.60	1,677.90	1,467	1,618.80	476.5	462.7	811.9	816.6	-2,668.80	-2,804.80	1,671.20	1,771.20	'	'	'	'
Total liabilities and stockholders’ equity	$4,492.30	$4,378.80	'	$1,671.70	$1,686.80	$4,018.20	$4,084.30	$556.80	$490.80	$958.70	$973	($2,733.60)	($2,914.20)	$4,471.80	$4,320.70	'	'	'	'

Financial_Statements_of_Guaran3

Financial Statements of Guarantors (Details 1) (USD $)	3 Months Ended										10 Months Ended	12 Months Ended	8 Months Ended	12 Months Ended	4 Months Ended	12 Months Ended	8 Months Ended	12 Months Ended	4 Months Ended	12 Months Ended	8 Months Ended	12 Months Ended	4 Months Ended	12 Months Ended	8 Months Ended	12 Months Ended	4 Months Ended	12 Months Ended	8 Months Ended	12 Months Ended	4 Months Ended	12 Months Ended	2 Months Ended		3 Months Ended						8 Months Ended	12 Months Ended	1 Months Ended		3 Months Ended		4 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Apr. 30, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2013	Apr. 30, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2013	Apr. 30, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2013	Apr. 30, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2013	Apr. 30, 2012	Dec. 31, 2011	Jun. 30, 2012		Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Dec. 31, 2012	Dec. 31, 2013	Apr. 30, 2012		Mar. 31, 2012		Apr. 30, 2012	Dec. 31, 2011
													Parent TransUnion Corp. [Member]	Parent TransUnion Corp. [Member]	Parent TransUnion Corp. [Member]	Parent TransUnion Corp. [Member]	Issuers Trans Union LLC and TransUnion Financing Corporation [Member]	Issuers Trans Union LLC and TransUnion Financing Corporation [Member]	Issuers Trans Union LLC and TransUnion Financing Corporation [Member]	Issuers Trans Union LLC and TransUnion Financing Corporation [Member]	Guarantor Subsidiaries [Member]	Guarantor Subsidiaries [Member]	Guarantor Subsidiaries [Member]	Guarantor Subsidiaries [Member]	Non-Guarantor Subsidiaries [Member]	Non-Guarantor Subsidiaries [Member]	Non-Guarantor Subsidiaries [Member]	Non-Guarantor Subsidiaries [Member]	Eliminations [Member]	Eliminations [Member]	Eliminations [Member]	Eliminations [Member]	Transunion Corp [Member]		Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]	Transunion Corp [Member]		Transunion Corp [Member]		Transunion Corp [Member]	Transunion Corp [Member]
													Successor [Member]	Successor [Member]	TransUnion Corp-Predecessor	TransUnion Corp-Predecessor	Successor [Member]	Successor [Member]	TransUnion Corp-Predecessor	TransUnion Corp-Predecessor	Successor [Member]	Successor [Member]	TransUnion Corp-Predecessor	TransUnion Corp-Predecessor	Successor [Member]	Successor [Member]	TransUnion Corp-Predecessor	TransUnion Corp-Predecessor	Successor [Member]	Successor [Member]	TransUnion Corp-Predecessor	TransUnion Corp-Predecessor	Successor [Member]		Successor [Member]	Successor [Member]	Successor [Member]	Successor [Member]	Successor [Member]	Successor [Member]	Successor [Member]	Successor [Member]	TransUnion Corp-Predecessor		TransUnion Corp-Predecessor		TransUnion Corp-Predecessor	TransUnion Corp-Predecessor
Consolidating Statement of Income	'	'	'	'	'	'	'		'		'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'		'	'	'	'	'	'	'	'	'		'		'	'
Revenue	'	'	'	'	'	'	'		'		$767	$1,183.20	$0	$0	$0	$0	$465.70	$700.70	$228.70	$637.30	$168.20	$279.70	$82.50	$209.40	$176.10	$260.60	$84.60	$238.40	($43)	($57.80)	($22.80)	($61.10)	'		'	'	'	'	'	'	$767	$1,183.20	'		'		$373	$1,024
Operating expenses	'	'	'	'	'	'	'		'		'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'		'	'	'	'	'	'	'	'	'		'		'	'
Cost of services	'	'	'	'	'	'	'		'		298.2	472.4	0	0	0	0	202.3	311.3	122.6	295.1	72.9	118.9	36.1	88.3	52.9	81.3	29.6	79.5	-29.9	-39.1	-16.3	-41.4	'		'	'	'	'	'	'	298.2	472.4	'		'		172	421.5
Selling, general and administrative	'	'	'	'	'	'	'		'		212.6	354.8	0	0	0.1	0.3	135.5	208.7	120	166.9	39.3	81.6	30.5	63	50.9	83	28.3	55.4	-14	-19.8	-6.9	-21.1	'		'	'	'	'	'	'	211.7	353.5	'		'		172	264.5
Depreciation and amortization	'	'	'	'	'	'	'		'		115	186.8	0	0	0	0	91.3	146.9	19.8	60.9	7.7	15.6	5.9	17.1	16	24.3	3.5	7.3	0	0	0	0	'		'	'	'	'	'	'	115	186.8	'		'		29.2	85.3
Total operating expenses	'	'	'	'	'	'	'		'		625.8	1,014	0	0	0.1	0.3	429.1	666.9	262.4	522.9	119.9	216.1	72.5	168.4	119.8	188.6	61.4	142.2	-43.9	-58.9	-23.2	-62.5	'		'	'	'	'	'	'	624.9	1,012.70	'		'		373.2	771.3
Operating income	36.3	49.3	39.5	44.2	43.4	61.3	36.5	[1]	'		141.2	169.2	0	0	-0.1	-0.3	36.6	33.8	-33.7	114.4	48.3	63.6	10	41	56.3	72	23.2	96.2	0.9	1.1	0.4	1.4	37	[2]	36.5	49.7	39.8	44.5	43.6	61.6	142.1	170.5	-65.8	[2]	65.6	[2]	-0.2	252.7
Non-operating income and expense	'	'	'	'	'	'	'		'		'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'	'		'	'	'	'	'	'	'	'	'		'		'	'
Interest expense	'	'	'	'	'	'	'		'		-125	-197.6	0	0	-0.3	-1.3	-73.1	-101.3	-40.2	-124.9	0	0.1	0	0	0.1	-1.1	-0.3	-0.2	0.2	0.9	0.3	0	'		'	'	'	'	'	'	-72.8	-101.4	'		'		-40.5	-126.4
Earnings from equity method investments	'	'	'	'	'	'	'		'		8	13.7	61.5	43.6	-51.8	42.9	59.3	91.3	28.3	89.9	0	16.4	0	0	2.7	4.5	1.3	3.2	-115.5	-142.1	26.3	-124.6	'		'	'	'	'	'	'	8	13.7	'		'		4.1	11.4
Interest income	'	'	'	'	'	'	'		'		0.8	1.7	0	0	0.3	0	0.2	0.9	0.3	0.1	0	0	0	0	0.8	1.6	0.3	0.6	-0.2	-0.8	-0.3	0	'		'	'	'	'	'	'	0.8	1.7	'		'		0.6	0.7
Other income and (expense), net	'	'	'	'	'	'	'		'		-22.3	-12.9	-0.3	-0.1	-20.9	0	1.4	-3.8	-4.9	-61.9	0	-2.1	0	-0.1	-6.1	-5.4	-1.7	-7.9	-0.9	-1.2	-0.4	-1.4	'		'	'	'	'	'	'	-5.9	-12.6	'		'		-27.9	-71.3
Total non-operating income and expense	'	'	'	'	'	'	'		'		-138.5	-195.1	61.2	43.5	-72.7	41.6	-12.2	-12.9	-16.5	-96.8	0	14.4	0	-0.1	-2.5	-0.4	-0.4	-4.3	-116.4	-143.2	25.9	-126	'		'	'	'	'	'	'	-69.9	-98.6	'		'		-63.7	-185.6
Income (loss) before income taxes	'	'	'	'	'	'	'		'		2.7	-25.9	61.2	43.5	-72.8	41.3	24.4	20.9	-50.2	17.6	48.3	78	10	40.9	53.8	71.6	22.8	91.9	-115.5	-142.1	26.3	-124.6	'		'	'	'	'	'	'	72.2	71.9	'		'		-63.9	67.1
Provision for income taxes	'	'	'	'	'	'	'		'		-6.6	-2.3	-18.2	-0.3	17.9	-0.5	37.1	22.7	-1.6	25.3	-21.8	-28.6	0	-20.9	-21.4	-15.6	-4.8	-21.7	0	0	0	0	'		'	'	'	'	'	'	-24.3	-21.8	'		'		11.5	-17.8
Income (loss) from continuing operations	'	'	'	'	'	'	'		'		'	'	'	'	'	40.8	'	'	'	42.9	'	'	'	20	'	'	'	70.2	'	'	'	-124.6	'		'	'	'	'	'	'	47.9	50.1	'		'		-52.4	49.3
Discontinued operations, net of tax	'	'	'	'	'	'	'		'		'	'	'	'	'	0	'	'	'	0	'	'	'	0	'	'	'	-0.5	'	'	'	0	'		'	'	'	'	'	'	0	0	'		'		0	-0.5
Net income	-15.7	-1.4	-6.1	-5	-6.7	13.5	-2.3	[1]	-8.5	[1],[3]	-3.9	-28.2	43	43.2	-54.9	40.8	61.5	43.6	-51.8	42.9	26.5	49.4	10	20	32.4	56	18	69.7	-115.5	-142.1	26.3	-124.6	10.8	[2]	7.2	19.5	11.9	11.5	14.1	23	47.9	50.1	-64.5	[2]	12.1	[2]	-52.4	48.8
Less: net income attributable to noncontrolling interests	'	'	'	'	'	'	'		'		-4.9	-6.9	0	0	0	0	0	0	0	0	0	0	0	0	-4.9	-6.9	-2.5	-8	0	0	0	0	'		'	'	'	'	'	'	-4.9	-6.9	'		'		-2.5	-8
Net loss attributable to TransUnion Holding Company, Inc.	($17.60)	($3.40)	($7.80)	($6.30)	($8.20)	$11.30	($3.50)	[1]	($8.50)	[1],[3]	($8.80)	($35.10)	$43	$43.20	($54.90)	$40.80	$61.50	$43.60	($51.80)	$42.90	$26.50	$49.40	$10	$20	$27.50	$49.10	$15.50	$61.70	($115.50)	($142.10)	$26.30	($124.60)	$9.60	[2]	$5.30	$17.50	$10.20	$10.20	$12.60	$20.80	$43	$43.20	($65.10)	[2]	$10.20	[2]	($54.90)	$40.80
[1]	The financial results of TransUnion Holding include the consolidated results of TransUnion Corp subsequent to April 30, 2012, the date of acquisition. See Note 1, “Significant Accounting and Reporting Policies,” and Note 2, “Change in Control Transaction,” for further information. For the period of inception through March 31, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $7.0 million of acquisition fees related to the 2012 Change in Control Transaction. For the three months ended June 30, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $8.2 million of acquisition fees related to the 2012 Change in Control Transaction.
[2]	For the three months ended March 31, 2012, net income (loss) and net income (loss) attributable to TransUnion Corp included $2.6 million of acquisition fees related to the 2012 Change in Control Transaction. For the one month ended April 30, 2012, net income (loss) and net income (loss) attributable to TransUnion Corp included $18.3 million of acquisition fees related to the 2012 Change in Control Transaction. For the one month ended April 30, 2012, operating income (loss), net income (loss) and net income (loss) attributable to TransUnion Corp all included $90.0 million of accelerated stock-based compensation and related expense as a result of the 2012 Change in Control Transaction. For the two months ended June 30, 2012, operating income (loss), net income (loss) and net income (loss) attributable to TransUnion Corp all included $0.3 million of accelerated stock-based compensation and related expense as a result of the 2012 Change in Control Transaction.
[3]	Period is from inception of TransUnion Holding, February 15, 2012, through March 31, 2012.

Financial_Statements_of_Guaran4

Financial Statements of Guarantors (Details 2) (USD $)

3 Months Ended

10 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

2 Months Ended

3 Months Ended

8 Months Ended

12 Months Ended

1 Months Ended

3 Months Ended

4 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Jun. 30, 2012

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Mar. 31, 2012

Apr. 30, 2012

Dec. 31, 2011

Parent TransUnion Corp. [Member]

Parent TransUnion Corp. [Member]

Parent TransUnion Corp. [Member]

Parent TransUnion Corp. [Member]

Issuers Trans Union LLC and TransUnion Financing Corporation [Member]

Issuers Trans Union LLC and TransUnion Financing Corporation [Member]

Issuers Trans Union LLC and TransUnion Financing Corporation [Member]

Issuers Trans Union LLC and TransUnion Financing Corporation [Member]

Guarantor Subsidiaries [Member]

Guarantor Subsidiaries [Member]

Guarantor Subsidiaries [Member]

Guarantor Subsidiaries [Member]

Non-Guarantor Subsidiaries [Member]

Non-Guarantor Subsidiaries [Member]

Non-Guarantor Subsidiaries [Member]

Non-Guarantor Subsidiaries [Member]

Eliminations [Member]

Eliminations [Member]

Eliminations [Member]

Eliminations [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

Statement of Comprehensive Income [Abstract]

'

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'

'

'

Net income

($15.70)

($1.40)

($6.10)

($5)

($6.70)

$13.50

($2.30)

[1]

($8.50)

[1],[2]

($3.90)

($28.20)

$43

$43.20

($54.90)

$40.80

$61.50

$43.60

($51.80)

$42.90

$26.50

$49.40

$10

$20

$32.40

$56

$18

$69.70

($115.50)

($142.10)

$26.30

($124.60)

$10.80

[3]

$7.20

$19.50

$11.90

$11.50

$14.10

$23

$47.90

$50.10

($64.50)

[3]

$12.10

[3]

($52.40)

$48.80

Other comprehensive income (loss), net of tax

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'

'

'

'

'

'

Foreign currency translation adjustment

'

'

'

'

'

'

'

'

-22.7

-56.4

-20.7

-51.8

2.2

-12.9

-20.7

-51.8

2.2

-12.9

0

0

0

0

-22.7

-56.4

2.5

-14.5

41.4

103.6

-4.4

25.8

'

'

'

'

'

'

'

-22.7

-56.4

'

'

2.5

-14.5

Net unrealized loss on hedges

'

'

'

'

'

'

'

'

-3.7

3

-3.7

3

'

'

-3.7

3

'

'

0

0

'

'

0

0

'

'

3.7

-3

'

'

'

'

'

'

'

'

'

-3.7

3

'

'

0

0

Other comprehensive income (loss)

'

'

'

'

'

'

'

'

-26.4

-53.4

-24.4

-48.8

2.2

-12.9

-24.4

-48.8

2.2

-12.9

0

0

0

0

-22.7

-56.4

2.5

-14.5

45.1

100.6

-4.4

25.8

'

'

'

'

'

'

'

-26.4

-53.4

'

'

2.5

-14.5

Comprehensive income (loss)

'

'

'

'

'

'

'

'

-30.3

-81.6

18.6

-5.6

-52.7

27.9

37.1

-5.2

-49.6

30

26.5

49.4

10

20

9.7

-0.4

20.5

55.2

-70.4

-41.5

21.9

-98.8

'

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'

'

'

'

'

21.5

-3.3

'

'

-49.9

34.3

Less: comprehensive income attributable to noncontrolling interests

'

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'

'

'

'

'

'

-2.9

-2.3

0

0

0

0

0

0

0

0

0

0

0

0

-2.9

-2.3

-2.8

-6.4

0

0

0

0

'

'

'

'

'

'

'

-2.9

-2.3

'

'

-2.8

-6.4

Comprehensive Income (Loss), Net of Tax, Attributable to Parent

'

'

'

'

'

'

'

'

($33.20)

($83.90)

$18.60

($5.60)

($52.70)

$27.90

$37.10

($5.20)

($49.60)

$30

$26.50

$49.40

$10

$20

$6.80

($2.70)

$17.70

$48.80

($70.40)

($41.50)

$21.90

($98.80)

'

'

'

'

'

'

'

$18.60

($5.60)

'

'

($52.70)

$27.90

[1]

The financial results of TransUnion Holding include the consolidated results of TransUnion Corp subsequent to April 30, 2012, the date of acquisition. See Note 1, “Significant Accounting and Reporting Policies,” and Note 2, “Change in Control Transaction,” for further information. For the period of inception through March 31, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $7.0 million of acquisition fees related to the 2012 Change in Control Transaction. For the three months ended June 30, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $8.2 million of acquisition fees related to the 2012 Change in Control Transaction.

[2]

Period is from inception of TransUnion Holding, February 15, 2012, through March 31, 2012.

[3]

For the three months ended March 31, 2012, net income (loss) and net income (loss) attributable to TransUnion Corp included $2.6 million of acquisition fees related to the 2012 Change in Control Transaction. For the one month ended April 30, 2012, net income (loss) and net income (loss) attributable to TransUnion Corp included $18.3 million of acquisition fees related to the 2012 Change in Control Transaction. For the one month ended April 30, 2012, operating income (loss), net income (loss) and net income (loss) attributable to TransUnion Corp all included $90.0 million of accelerated stock-based compensation and related expense as a result of the 2012 Change in Control Transaction. For the two months ended June 30, 2012, operating income (loss), net income (loss) and net income (loss) attributable to TransUnion Corp all included $0.3 million of accelerated stock-based compensation and related expense as a result of the 2012 Change in Control Transaction.

Financial_Statements_of_Guaran5

Financial Statements of Guarantors (Details 3) (USD $)

3 Months Ended

10 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

8 Months Ended

12 Months Ended

4 Months Ended

12 Months Ended

2 Months Ended

3 Months Ended

4 Months Ended

8 Months Ended

12 Months Ended

1 Months Ended

3 Months Ended

4 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Dec. 31, 2011

Jun. 30, 2012

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Apr. 30, 2012

Dec. 31, 2012

Dec. 31, 2013

Apr. 30, 2012

Mar. 31, 2012

Apr. 30, 2012

Dec. 31, 2011

Parent TransUnion Corp. [Member]

Parent TransUnion Corp. [Member]

Parent TransUnion Corp. [Member]

Parent TransUnion Corp. [Member]

Issuers Trans Union LLC and TransUnion Financing Corporation [Member]

Issuers Trans Union LLC and TransUnion Financing Corporation [Member]

Issuers Trans Union LLC and TransUnion Financing Corporation [Member]

Issuers Trans Union LLC and TransUnion Financing Corporation [Member]

Guarantor Subsidiaries [Member]

Guarantor Subsidiaries [Member]

Guarantor Subsidiaries [Member]

Guarantor Subsidiaries [Member]

Non-Guarantor Subsidiaries [Member]

Non-Guarantor Subsidiaries [Member]

Non-Guarantor Subsidiaries [Member]

Non-Guarantor Subsidiaries [Member]

Eliminations [Member]

Eliminations [Member]

Eliminations [Member]

Eliminations [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

Transunion Corp [Member]

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Successor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

TransUnion Corp-Predecessor

Cash flows from operating activities:

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'

'

Net income

($15.70)

($1.40)

($6.10)

($5)

($6.70)

$13.50

($2.30)

[1]

($8.50)

[1],[2]

($3.90)

($28.20)

$43

$43.20

($54.90)

$40.80

$61.50

$43.60

($51.80)

$42.90

$26.50

$49.40

$10

$20

$32.40

$56

$18

$69.70

($115.50)

($142.10)

$26.30

($124.60)

$10.80

[3]

$7.20

$19.50

$11.90

$11.50

$14.10

$23

'

$47.90

$50.10

($64.50)

[3]

$12.10

[3]

($52.40)

$48.80

Less: income (loss) from discontinued operations, net of tax

'

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'

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'

'

'

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0

'

'

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0

'

'

'

0

'

'

'

-0.5

'

'

'

0

'

'

'

'

'

'

'

'

0

0

'

'

0

-0.5

Income from continuing operations

'

'

'

'

'

'

'

'

'

'

'

'

'

40.8

'

'

'

42.9

'

'

'

20

'

'

'

70.2

'

'

'

-124.6

'

'

'

'

'

'

'

'

47.9

50.1

'

'

-52.4

49.3

Adjustments to reconcile income (loss) from continuing operations to net cash provided by (used in) operating activities:

'

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Depreciation and amortization

'

'

'

'

'

'

'

'

115

186.8

0

0

0

0

91.3

146.9

19.8

60.9

7.7

15.6

5.9

17.1

16

24.3

3.5

7.3

0

0

0

0

'

'

'

'

'

'

'

'

115

186.8

'

'

29.2

85.3

Loss on early extinguishment of debt

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

'

'

59.3

'

'

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0

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'

'

0

'

'

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0

'

'

'

'

'

'

'

'

0

0

'

'

0

59.3

Stock-based compensation

'

'

'

'

'

'

'

'

2.7

6.3

0

0

0

0

2.2

5.9

1.8

4.1

0.1

0.2

0

0.1

0

0.1

0.2

0.4

0

0

0

0

'

'

'

'

'

'

'

'

2.3

6.2

'

'

2

4.6

Deferred financing fees

'

'

'

'

'

'

'

'

2.1

8.2

'

0

0

0

'

2.5

3.9

4.2

'

0

0

0

'

0

0

0

'

0

0

0

'

'

'

'

'

'

'

'

0

2.5

'

'

3.9

4.2

Provision (reduction) for losses on trade accounts receivable

'

'

'

'

'

'

'

'

-1.9

0.8

0

0

0

0

0

0.3

0.4

1

-2.1

-0.2

2.5

0.3

0.2

0.7

0.2

0.6

0

0

0

0

'

'

'

'

'

'

'

'

-1.9

0.8

'

'

3.1

1.9

Change in control transaction fees

'

'

'

'

'

'

'

'

'

'

0.4

'

20.9

'

0

'

0

'

0

'

0

'

0

'

0

'

0

'

0

'

'

'

'

'

'

'

'

'

0.4

0

'

'

20.9

0

Deferred taxes

'

'

'

'

'

'

'

'

-5.1

-16.2

14.6

0.7

-17.6

-0.1

-12.1

-13

0

-4.6

5

4.8

0

1.1

4.3

-4.6

-0.7

0.1

0

0

0

0

'

'

'

'

'

'

'

'

11.8

-12.1

'

'

-18.3

-3.5

Amortization of senior notes purchase accounting fair value adjustment and note discount

'

'

'

'

'

'

'

'

-10.8

-17.1

0

0

'

'

-10.8

-17.4

'

'

0

0

'

'

0

0

'

'

0

0

'

'

'

'

'

'

'

'

'

'

-10.8

-17.4

'

'

0

0

Equity in net income of affiliates, net of dividends

'

'

'

'

'

'

'

'

1.3

-3.6

0

0

0

0

1.4

-1.5

-2.4

-1.9

0

0

0

0

-0.1

-2.1

-1.3

-1.5

0

0

0

0

'

'

'

'

'

'

'

'

1.3

-3.6

'

'

-3.7

-3.4

Cash dividends paid to parent company by consolidated subsidiaries

'

'

'

'

'

'

'

'

'

'

'

153.2

'

'

'

0

'

'

'

0

'

'

'

0

'

'

'

-153.2

'

'

'

'

'

'

'

'

'

'

'

0

'

'

'

'

(Gains) / losses on sale or exchange of assets

'

'

'

'

'

'

'

'

0

-1

'

0

0

0

'

-0.8

0.1

0

'

-2.8

0

-0.3

'

2.6

0

0

'

0

0

0

'

'

'

'

'

'

'

'

0

-1

'

'

0.1

-0.3

Other

'

'

'

'

'

'

'

'

2.6

-0.9

0

0

-0.1

0

-0.5

-1.1

-0.6

0.3

0

0

0

1.8

3.1

0.2

-0.1

0.7

0

0

0.1

0

'

'

'

'

'

'

'

'

2.6

-0.9

'

'

-0.7

2.8

Equity in net (income) loss from subsidiaries

'

'

'

'

'

'

'

'

'

'

-61.5

-43.6

51.8

-42.9

-54

-82.1

-25.5

-81.7

0

-16.4

0

0

0

0

0

0

115.5

142.1

-26.3

124.6

'

'

'

'

'

'

'

'

0

0

'

'

0

0

Changes in assets and liabilities:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Trade accounts receivable

'

'

'

'

'

'

'

'

-1

-3.1

0

0

0

0

2.3

2.4

-11.3

-4.2

2.1

-4.4

-7

-2.8

-5.4

-1.1

-6.4

-4.6

0

0

0

0

'

'

'

'

'

'

'

'

-1

-3.1

'

'

-24.7

-11.6

Other current and long-term assets

'

'

'

'

'

'

'

'

-78.8

-8.6

72

20.8

-34.3

-49.1

-27.4

-75.7

47.9

5.3

-28

56.5

-15.8

14

-13.8

-5.7

3.7

26.5

0

0

0

0

'

'

'

'

'

'

'

'

2.8

-4.1

'

'

1.5

-3.3

Trade accounts payable

'

'

'

'

'

'

'

'

-0.8

5.9

0

0

-0.1

0.1

5.6

-2.4

-5.8

6.4

-3.4

5.6

6.2

5.3

-3.4

2.9

1.3

3.1

0

0

0

0

'

'

'

'

'

'

'

'

-1.2

6.1

'

'

1.6

14.9

Other current and long-term liabilities

'

'

'

'

'

'

'

'

25.6

14.1

-80.9

17.3

69.1

13.6

-1.1

4.1

20

-14.1

-1.1

2.1

2.7

0

5.6

5.3

-1.9

4.8

0

0

0

0

'

'

'

'

'

'

'

'

-77.5

28.8

'

'

89.9

4.3

Cash provided by operating activities of continuing operations

'

'

'

'

'

'

'

'

'

'

-12.4

191.6

34.8

-37.6

58.4

11.7

-3.5

77.9

6.8

110.4

4.5

56.6

38.9

78.6

16.5

107.6

0

-153.2

0.1

0

'

'

'

'

'

'

'

'

91.7

239.1

'

'

52.4

204.5

Cash used in operating activities of discontinued operations

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

'

'

0

'

'

'

0

'

'

'

-1.3

'

'

'

0

'

'

'

'

'

'

'

'

0

0

'

'

0

-1.3

Net cash provided by (Used in) operating activities

'

'

'

'

'

'

'

'

47

143.4

'

'

'

-37.6

'

'

'

77.9

'

'

'

56.6

'

'

'

106.3

'

'

'

0

'

'

'

'

'

'

'

'

91.7

239.1

'

'

52.4

203.2

Cash flows from investing activities:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Capital expenditures for property and equipment

'

'

'

'

'

'

'

'

-48.8

-81.7

0

0

0

0

-36.9

-55.4

-15.6

-60

-6.9

-14.1

-3.6

-5.3

-5

-12.2

-1.2

-8.7

0

0

0

0

'

'

'

'

'

'

'

-20.4

-48.8

-81.7

'

'

-20.4

-74

Investments in trading securities

'

'

'

'

'

'

'

'

-0.5

-1.8

0

0

0

0

-0.5

-1.8

-1.1

-1.2

0

0

0

0

0

0

0

0

0

0

0

0

'

'

'

'

'

'

'

'

-0.5

-1.8

'

'

-1.1

-1.2

Proceeds from sale of trading securities

'

'

'

'

'

'

'

'

0

4.4

'

0

0

0

'

4.4

1.1

9.9

'

0

0

0

'

0

0

0

'

0

0

0

'

'

'

'

'

'

'

'

0

4.4

'

'

1.1

9.9

Proceeds from sale of other assets

'

'

'

'

'

'

'

'

0

4.3

'

0

'

'

'

0.9

'

'

'

3.2

'

'

'

0.2

'

'

'

0

'

'

'

'

'

'

'

'

'

'

0

4.3

'

'

0

0

Proceeds from sale and redemption of investments in available-for-sale securities

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

'

'

0

'

'

'

0.2

'

'

'

0

'

'

'

0

'

'

'

'

'

'

'

'

0

0

'

'

0

0.2

Investments in held-to-maturity securities

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

'

'

0

'

'

'

0

'

'

'

-6.3

'

'

'

0

'

'

'

'

'

'

'

'

0

0

'

'

0

-6.3

Proceeds from held-to-maturity securities

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

'

'

0

'

'

'

0

'

'

'

6.3

'

'

'

0

'

'

'

'

'

'

'

'

0

0

'

'

0

6.3

Other acquisitions and purchases of noncontrolling interests, net of cash acquired

'

'

'

'

'

'

'

'

-14.2

-282.3

0

-152.4

0

0

0

0

0

0

0

-99.6

0

-50.7

-14.2

-30.3

-0.1

-54.5

0

0

0

0

'

'

'

'

'

'

'

'

-14.2

-282.3

'

'

-0.1

-105.2

Other Payments to Acquire Businesses

'

'

'

'

'

'

'

'

3.7

-10

0

-1

'

0

0

0

'

0

0

0

'

0

3.7

-9

'

-8.6

0

0

'

0

'

'

'

'

'

'

'

'

3.7

-10

'

'

0

-8.6

Proceeds from notes receivable

'

'

'

'

'

'

'

'

'

'

0

0

0

'

0

30.5

22.6

'

0

0

0

'

3.9

0

0

'

-3.9

-30.5

-22.6

'

'

'

'

'

'

'

'

'

0

0

'

'

0

'

Issuance of notes receivable

'

'

'

'

'

'

'

'

'

'

'

0

0

'

'

-32

0

'

'

0

0

'

'

0

-4.1

'

'

32

4.1

'

'

'

'

'

'

'

'

'

'

0

'

'

0

'

Other

'

'

'

'

'

'

'

'

-1.4

0.1

0

0

0

0

0

0

0

-2.5

0.1

0.1

-0.1

0

-1.5

0

1

-0.2

0

0

0

0

'

'

'

'

'

'

'

'

-1.4

0.1

'

'

0.9

-2.7

Cash (used in) provided by investing activities

'

'

'

'

'

'

'

'

-1,547.10

-367

0

-153.4

0

0

-37.4

-53.4

7

-53.8

-6.8

-110.4

-3.7

-55.8

-13.1

-51.3

-4.4

-72

-3.9

1.5

-18.5

0

'

'

'

'

'

'

'

'

-61.2

-367

'

'

-19.6

-181.6

Cash flows from financing activities:

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Proceeds from senior secured term loan

'

'

'

'

'

'

'

'

0

1,133.40

'

0

'

0

'

1,133.40

'

950

'

0

'

0

'

0

'

0

'

0

'

0

'

'

'

'

'

'

'

'

0

1,133.40

'

'

0

950

Proceeds from revolving line of credit

'

'

'

'

'

'

'

'

0

65

'

0

'

'

'

65

'

'

'

0

'

'

'

0

'

'

'

0

'

'

'

'

'

'

'

'

'

'

0

65

'

'

0

0

Repayments of Lines of Credit

'

'

'

'

'

'

'

'

0

-65

'

0

'

'

'

-65

'

'

'

0

'

'

'

0

'

'

'

0

'

'

'

'

'

'

'

'

'

'

0

-65

'

'

0

0

Extinguishment of senior secured term loan

'

'

'

'

'

'

'

'

0

-923.4

'

0

'

0

'

-923.4

'

-945.2

'

0

'

0

'

0

'

0

'

0

'

0

'

'

'

'

'

'

'

'

0

-923.4

'

'

0

-945.2

Prepayment fee on early extinguishment of senior secured term loan

'

'

'

'

'

'

'

'

'

'

'

'

'

0

'

'

'

-9.5

'

'

'

0

'

'

'

0

'

'

'

0

'

'

'

'

'

'

'

'

0

0

'

'

0

-9.5

Repayments of debt

'

'

'

'

'

'

'

'

-17.2

-11.9

0

0

-10.3

-3.9

-21

-10.8

-2.5

-7.1

0

0

-0.9

-0.7

-0.1

-31.6

-23.5

0

3.9

30.5

22.6

0

'

'

'

'

'

'

'

'

-17.2

-11.9

'

'

-14.6

-11.7

Treasury stock purchases

'

'

'

'

'

'

'

'

-0.7

-3.4

'

'

-1.3

-0.2

'

'

0

0

'

'

0

0

'

'

0

0

'

'

0

0

'

'

'

'

'

'

'

'

0

0

'

'

-1.3

-0.2

Distribution of merger consideration

'

'

'

'

'

'

'

'

'

'

'

'

-1.3

-4.3

'

'

0

0

'

'

0

0

'

'

0

0

'

'

0

0

'

'

'

'

'

'

'

'

0

0

'

'

-1.3

-4.3

Debt financing fees

'

'

'

'

'

'

'

'

-41.3

-5.2

'

0

0

0

'

-4.3

-6.1

-11.3

'

0

0

0

'

0

0

0

'

0

0

0

'

'

'

'

'

'

'

'

0

-4.3

'

'

-6.1

-11.3

Change in control transaction fees

'

'

'

'

'

'

'

'

'

'

-0.4

'

-20.9

'

0

'

0

'

0

'

0

'

0

'

0

'

0

'

0

'

'

'

'

'

'

'

'

'

-0.4

0

'

'

-20.9

0

Distributions to noncontrolling interests

'

'

'

'

'

'

'

'

-7.2

-8

0

0

0

0

0

0

0

0

0

0

0

0

-7.2

-8

-0.4

-8.5

0

0

0

0

'

'

'

'

'

'

'

'

-7.2

-8

'

'

-0.4

-8.5

Dividends to TransUnion Holding

'

'

'

'

'

'

'

'

-373.8

0

-27.9

-94.2

'

'

0

-153.2

'

'

0

0

'

'

0

0

'

'

0

153.2

'

'

'

'

'

'

'

'

'

'

-27.9

-94.2

'

'

0

0

Proceeds from issuance of debt

'

'

'

'

'

'

'

'

'

'

'

0

0

'

'

0

4.1

'

'

0

0

'

'

32

0

'

'

-32

-4.1

'

'

'

'

'

'

'

'

'

'

0

'

'

0

'

Stockholder contributions

'

'

'

'

'

'

'

'

'

'

80.8

'

'

0

0

'

'

0

0

'

'

0

0

'

'

0.3

0

'

'

0

'

'

'

'

'

'

'

'

80.8

0

'

'

0

0.3

Other

'

'

'

'

'

'

'

'

'

'

'

'

-0.4

-0.8

'

'

0

0

'

'

0

0

'

'

0.1

0

'

'

-0.1

0

'

'

'

'

'

'

'

'

0

0

'

'

-0.4

-0.8

Cash provided by (used in) financing activities

'

'

'

'

'

'

'

'

1,655.10

187.3

52.5

-94.2

-34.2

-9.2

-21

41.7

-4.5

-23.1

0

0

-0.9

-0.7

-7.3

-7.6

-23.8

-8.2

3.9

151.7

18.4

0

'

'

'

'

'

'

'

'

28.1

91.6

'

'

-45

-41.2

Effect of exchange rate changes on cash and cash equivalents

'

'

'

'

'

'

'

'

-0.7

-6.8

0

0

0

0

0

0

0

0

0

0

0

0

-0.7

-6.8

0.8

-3.8

0

0

0

0

'

'

'

'

'

'

'

'

-0.7

-6.8

'

'

0.8

-3.8

Cash and cash equivalents, beginning of period, including cash of discontinued operations of $11.6 in 2010

'

'

'

'

'

'

'

'

'

'

35.2

75.3

34.6

81.4

0

0

1

0

0

0

0.1

0

61.2

79

72.1

49.8

0

0

0

0

96.4

'

'

'

154.3

'

'

'

96.4

154.3

'

107.8

107.8

131.2

Cash and cash equivalents, end of period

'

'

'

'

'

'

'

'

'

'

75.3

19.3

35.2

34.6

0

0

0

1

0

0

0

0.1

79

91.9

61.2

72.1

0

0

0

0

'

111.2

'

'

'

154.3

'

96.4

154.3

111.2

96.4

'

96.4

107.8

Net change in cash and cash equivalents

'

'

'

'

'

'

'

'

$154.30

($43.10)

$40.10

($56)

$0.60

($46.80)

$0

$0

($1)

$1

$0

$0

($0.10)

$0.10

$17.80

$12.90

($10.90)

$22.30

$0

$0

$0

$0

'

'

'

'

'

'

'

'

$57.90

($43.10)

'

'

($11.40)

($23.40)

[1]

The financial results of TransUnion Holding include the consolidated results of TransUnion Corp subsequent to April 30, 2012, the date of acquisition. See Note 1, “Significant Accounting and Reporting Policies,” and Note 2, “Change in Control Transaction,” for further information. For the period of inception through March 31, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $7.0 million of acquisition fees related to the 2012 Change in Control Transaction. For the three months ended June 30, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $8.2 million of acquisition fees related to the 2012 Change in Control Transaction.

[2]

Period is from inception of TransUnion Holding, February 15, 2012, through March 31, 2012.

[3]

For the three months ended March 31, 2012, net income (loss) and net income (loss) attributable to TransUnion Corp included $2.6 million of acquisition fees related to the 2012 Change in Control Transaction. For the one month ended April 30, 2012, net income (loss) and net income (loss) attributable to TransUnion Corp included $18.3 million of acquisition fees related to the 2012 Change in Control Transaction. For the one month ended April 30, 2012, operating income (loss), net income (loss) and net income (loss) attributable to TransUnion Corp all included $90.0 million of accelerated stock-based compensation and related expense as a result of the 2012 Change in Control Transaction. For the two months ended June 30, 2012, operating income (loss), net income (loss) and net income (loss) attributable to TransUnion Corp all included $0.3 million of accelerated stock-based compensation and related expense as a result of the 2012 Change in Control Transaction.

Condensed_Financial_Informatio1

Condensed Financial Information of TransUnion Holding Company, Inc.(Details) (USD $)

3 Months Ended

10 Months Ended

12 Months Ended

In Millions, unless otherwise specified

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2012

Mar. 31, 2012

Dec. 31, 2012

Dec. 31, 2013

Current assets:

'

'

'

'

'

'

'

'

'

'

Other current assets

$73.50

'

'

'

$82.70

'

'

'

$82.70

$73.50

Total current assets

349.7

'

'

'

400.6

'

'

'

400.6

349.7

Equity method investments

84.5

'

'

'

80.7

'

'

'

80.7

84.5

Other assets

138.6

'

'

'

129.8

'

'

'

129.8

138.6

Total assets

4,492.30

'

'

'

4,378.80

'

'

'

4,378.80

4,492.30

Current liabilities:

'

'

'

'

'

'

'

'

'

'

Trade accounts payable

100.3

'

'

'

78.4

'

'

'

78.4

100.3

Other current liabilities

133.5

'

'

'

129.3

'

'

'

129.3

133.5

Total current liabilities

247.6

'

'

'

218.3

'

'

'

218.3

247.6

Other liabilities

22.6

'

'

'

21.9

'

'

'

21.9

22.6

Total liabilities

3,760.20

'

'

'

3,568

'

'

'

3,568

3,760.20

Stockholders' equity:

'

'

'

'

'

'

'

'

'

'

Common stock, $0.01 par value; one thousand shares authorized, one hundred and 29.8 million shares issued at December 31, 2012, and December 31, 2011, respectively; one hundred and 29.8 million shares outstanding as of December 31, 2012, and December 31, 2011, respectively

1.1

'

'

'

1.1

'

'

'

1.1

1.1

Additional paid-in capital

1,121.80

'

'

'

1,109.40

'

'

'

1,109.40

1,121.80

Treasury stock at cost; 0 shares at December 31, 2012, and less than 0.1 million shares at December 31, 2011

-4.1

'

'

'

-0.7

'

'

'

-0.7

-4.1

Retained earnings (accumulated deficit)

-417.7

'

'

'

-382.6

'

'

'

-382.6

-417.7

Accumulated other comprehensive income (loss)

-73.2

'

'

'

-24.4

'

'

'

-24.4

-73.2

Total stockholders’ equity

714.5

'

'

'

796.1

'

'

'

796.1

714.5

Total liabilities and stockholders’ equity

4,492.30

'

'

'

4,378.80

'

'

'

4,378.80

4,492.30

Statement of Income

'

'

'

'

'

'

'

'

'

'

Revenue

'

'

'

'

'

'

'

'

767

1,183.20

Operating expenses

'

'

'

'

'

'

'

'

'

'

Selling, general and administrative

'

'

'

'

'

'

'

'

212.6

354.8

Total operating expenses

'

'

'

'

'

'

'

'

625.8

1,014

Operating income

36.3

49.3

39.5

44.2

43.4

61.3

36.5

[1]

'

141.2

169.2

Non-operating income and expense

'

'

'

'

'

'

'

'

'

'

Interest expense

'

'

'

'

'

'

'

'

-125

-197.6

Earnings from equity method investments

'

'

'

'

'

'

'

'

8

13.7

Other income and (expense), net

'

'

'

'

'

'

'

'

-22.3

-12.9

Total non-operating income and expense

'

'

'

'

'

'

'

'

-138.5

-195.1

Income (loss) before income taxes

'

'

'

'

'

'

'

'

2.7

-25.9

Provision for income taxes

'

'

'

'

'

'

'

'

-6.6

-2.3

Net income (loss) attributable to TransUnion Corp.

-17.6

-3.4

-7.8

-6.3

-8.2

11.3

-3.5

[1]

-8.5

[1],[2]

-8.8

-35.1

Net loss

-15.7

-1.4

-6.1

-5

-6.7

13.5

-2.3

[1]

-8.5

[1],[2]

-3.9

-28.2

Statement of Comprehensive Income [Abstract]

'

'

'

'

'

'

'

'

'

'

Foreign currency translation adjustment

'

'

'

'

'

'

'

'

-22.7

-56.4

Net unrealized loss on hedges

'

'

'

'

'

'

'

'

-3.7

3

Total other comprehensive loss, net of tax

'

'

'

'

'

'

'

'

-26.4

-53.4

Comprehensive loss attributable to TransUnion Holding Company, Inc.

'

'

'

'

'

'

'

'

-33.2

-83.9

Statement of Cash Flows

'

'

'

'

'

'

'

'

'

'

Net cash provided by (Used in) operating activities

'

'

'

'

'

'

'

'

47

143.4

Cash flows from investing activities:

'

'

'

'

'

'

'

'

'

'

Acquisition of noncontrolling interests in TransUnion Corp. subsidiaries

'

'

'

'

'

'

'

'

-1,485.90

0

Cash (used in) provided by investing activities

'

'

'

'

'

'

'

'

-1,547.10

-367

Cash flows from financing activities:

'

'

'

'

'

'

'

'

'

'

Debt financing fees

'

'

'

'

'

'

'

'

-41.3

-5.2

Proceeds from issuance of common stock

'

'

'

'

'

'

'

'

1,097.30

5.8

Treasury stock purchases

'

'

'

'

'

'

'

'

-0.7

-3.4

Dividends

'

'

'

'

'

'

'

'

-373.8

0

Cash provided by (used in) financing activities

'

'

'

'

'

'

'

'

1,655.10

187.3

Net change in cash and cash equivalents

'

'

'

'

'

'

'

'

154.3

-43.1

9.625% notes

'

'

'

'

'

'

'

'

'

'

Cash flows from financing activities:

'

'

'

'

'

'

'

'

'

'

Proceeds from notes

'

'

'

'

'

'

'

'

600

0

8.125% notes

'

'

'

'

'

'

'

'

'

'

Cash flows from financing activities:

'

'

'

'

'

'

'

'

'

'

Proceeds from notes

'

'

'

'

'

'

'

'

398

0

TransUnion Holding Company, Inc. [Member]

'

'

'

'

'

'

'

'

'

'

Current assets:

'

'

'

'

'

'

'

'

'

'

Due from TransUnion Corp

52.7

'

'

'

0

'

'

'

0

52.7

Other current assets

7.5

'

'

'

5.7

'

'

'

5.7

7.5

Total current assets

60.2

'

'

'

5.7

'

'

'

5.7

60.2

Equity method investments

1,584.60

'

'

'

1,666.60

'

'

'

1,666.60

1,584.60

Other assets

28.1

'

'

'

34.1

'

'

'

34.1

28.1

Total assets

1,672.90

'

'

'

1,706.40

'

'

'

1,706.40

1,672.90

Current liabilities:

'

'

'

'

'

'

'

'

'

'

Trade accounts payable

0.2

'

'

'

0.9

'

'

'

0.9

0.2

Other current liabilities

33.4

'

'

'

22.4

'

'

'

22.4

33.4

Total current liabilities

33.6

'

'

'

23.3

'

'

'

23.3

33.6

Long-term debt

998.3

'

'

'

998

'

'

'

998

998.3

Other liabilities

13.1

'

'

'

0.1

'

'

'

0.1

13.1

Total liabilities

1,045

'

'

'

1,021.40

'

'

'

1,021.40

1,045

Stockholders' equity:

'

'

'

'

'

'

'

'

'

'

Common stock, $0.01 par value; one thousand shares authorized, one hundred and 29.8 million shares issued at December 31, 2012, and December 31, 2011, respectively; one hundred and 29.8 million shares outstanding as of December 31, 2012, and December 31, 2011, respectively

1.1

'

'

'

1.1

'

'

'

1.1

1.1

Additional paid-in capital

1,121.80

'

'

'

1,109.40

'

'

'

1,109.40

1,121.80

Treasury stock at cost; 0 shares at December 31, 2012, and less than 0.1 million shares at December 31, 2011

-4.1

'

'

'

-0.7

'

'

'

-0.7

-4.1

Retained earnings (accumulated deficit)

-417.7

'

'

'

-400.4

'

'

'

-400.4

-417.7

Accumulated other comprehensive income (loss)

-73.2

'

'

'

-24.4

'

'

'

-24.4

-73.2

Total stockholders’ equity

627.9

'

'

'

685

'

'

'

685

627.9

Total liabilities and stockholders’ equity

1,672.90

'

'

'

1,706.40

'

'

'

1,706.40

1,672.90

Statement of Income

'

'

'

'

'

'

'

'

'

'

Revenue

'

'

'

'

'

'

'

'

'

'

Operating expenses

'

'

'

'

'

'

'

'

'

'

Selling, general and administrative

'

'

'

'

'

'

'

'

0.9

1.3

Total operating expenses

'

'

'

'

'

'

'

'

0.9

1.3

Operating income

'

'

'

'

'

'

'

'

-0.9

-1.3

Non-operating income and expense

'

'

'

'

'

'

'

'

'

'

Interest expense

'

'

'

'

'

'

'

'

-52.2

-96.3

Earnings from equity method investments

'

'

'

'

'

'

'

'

43

43.2

Other income and (expense), net

'

'

'

'

'

'

'

'

-16.5

-0.2

Total non-operating income and expense

'

'

'

'

'

'

'

'

-25.7

-53.3

Income (loss) before income taxes

'

'

'

'

'

'

'

'

-26.6

-54.6

Provision for income taxes

'

'

'

'

'

'

'

'

0

-37.3

Net income (loss) attributable to TransUnion Corp.

'

'

'

'

'

'

'

'

-26.6

-17.3

Statement of Comprehensive Income [Abstract]

'

'

'

'

'

'

'

'

'

'

Foreign currency translation adjustment

'

'

'

'

'

'

'

'

-20.7

-51.8

Net unrealized loss on hedges

'

'

'

'

'

'

'

'

-3.7

3

Total other comprehensive loss, net of tax

'

'

'

'

'

'

'

'

-24.4

-48.8

Comprehensive loss attributable to TransUnion Holding Company, Inc.

'

'

'

'

'

'

'

'

-51

-66.1

Statement of Cash Flows

'

'

'

'

'

'

'

'

'

'

Net cash provided by (Used in) operating activities

'

'

'

'

'

'

'

'

-16.4

-1.5

Cash flows from investing activities:

'

'

'

'

'

'

'

'

'

'

Acquisition of noncontrolling interests in TransUnion Corp. subsidiaries

'

'

'

'

'

'

'

'

-1,582.30

0

Capital investment in TransUnion Corp.

'

'

'

'

'

'

'

'

-80.8

0

Cash (used in) provided by investing activities

'

'

'

'

'

'

'

'

-1,663.10

0

Cash flows from financing activities:

'

'

'

'

'

'

'

'

'

'

Debt financing fees

'

'

'

'

'

'

'

'

-41.3

-0.9

Proceeds from issuance of common stock

'

'

'

'

'

'

'

'

1,097.30

5.8

Treasury stock purchases

'

'

'

'

'

'

'

'

-0.7

-3.4

Dividends

'

'

'

'

'

'

'

'

-373.8

0

Cash provided by (used in) financing activities

'

'

'

'

'

'

'

'

1,679.50

1.5

Net change in cash and cash equivalents

'

'

'

'

'

'

'

'

'

'

Cash and cash equivalents, beginning of period, including cash of discontinued operations of $11.6 in 2010

'

'

'

'

'

'

'

'

'

'

Cash and cash equivalents, end of period

'

'

'

'

'

'

'

'

'

'

Proceeds paid to TransUnion Holding from its consolidated subsidiaries

'

'

'

'

'

'

'

'

27.9

94.2

TransUnion Holding Company, Inc. [Member] | 9.625% notes

'

'

'

'

'

'

'

'

'

'

Cash flows from financing activities:

'

'

'

'

'

'

'

'

'

'

Proceeds from notes

'

'

'

'

'

'

'

'

600

0

TransUnion Holding Company, Inc. [Member] | 8.125% notes

'

'

'

'

'

'

'

'

'

'

Cash flows from financing activities:

'

'

'

'

'

'

'

'

'

'

Proceeds from notes

'

'

'

'

'

'

'

'

$398

$0

[1]

The financial results of TransUnion Holding include the consolidated results of TransUnion Corp subsequent to April 30, 2012, the date of acquisition. See Note 1, “Significant Accounting and Reporting Policies,” and Note 2, “Change in Control Transaction,” for further information. For the period of inception through March 31, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $7.0 million of acquisition fees related to the 2012 Change in Control Transaction. For the three months ended June 30, 2012, net income (loss) and net income (loss) attributable to TransUnion Holding included $8.2 million of acquisition fees related to the 2012 Change in Control Transaction.

[2]

Period is from inception of TransUnion Holding, February 15, 2012, through March 31, 2012.

Valuation_and_Qualifying_Accou1

Valuation and Qualifying Accounts (Details) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Allowance for doubtful accounts [Member]	'	'	'
Movement in valuation allowances and reserves	'	'	'
Balance at Beginning of Year	$1.70	$0	'
Charged to Costs and Expenses	-0.8	-1.9	'
Charged to Other Accounts	0	3.7	'
Deductions	-0.2	-0.1	'
Balance at End of Year	0.7	1.7	'
Allowance for doubtful accounts [Member] | Transunion Corp [Member]	'	'	'
Movement in valuation allowances and reserves	'	'	'
Balance at Beginning of Year	1.7	1.2	1.7
Charged to Costs and Expenses	-0.8	1.3	1.9
Charged to Other Accounts	'	0	-0.3
Deductions	-0.2	-0.8	-2.1
Balance at End of Year	0.7	1.7	1.2
Allowance for deferred tax assets [Member]	'	'	'
Movement in valuation allowances and reserves	'	'	'
Balance at Beginning of Year	27.2	0	'
Charged to Costs and Expenses	4.8	5	'
Charged to Other Accounts	0	24.8	'
Deductions	-6.1	-2.6	'
Balance at End of Year	25.9	27.2	'
Allowance for deferred tax assets [Member] | Transunion Corp [Member]	'	'	'
Movement in valuation allowances and reserves	'	'	'
Balance at Beginning of Year	27.2	16.9	12.8
Charged to Costs and Expenses	4.8	15.6	4.6
Charged to Other Accounts	0	7.4	0.2
Deductions	-6.1	-12.7	-0.7
Balance at End of Year	$25.90	$27.20	$16.90