Iron Mountain (IRM) 10-Q 1 Aug 19 2019 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2019	Jul. 26, 2019
Cover page.
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2019
Document Transition Report	false
Entity File Number	1-13045
Entity Registrant Name	IRON MOUNTAIN INC
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	23-2588479
Entity Address, Address Line One	One Federal Street
Entity Address, City or Town	Boston
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	02110
City Area Code	617
Local Phone Number	535-4766
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Small Business Entity	false
Emerging Growth Company	false
Entity Shell Company	false
Title of 12(b) Security	Common Stock, $.01 par value
Trading Symbol	IRM
Security Exchange Name	NYSE
Entity Common Stock, Shares Outstanding		287,106,811
Entity Central Index Key	0001020569
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Amendment Flag	false

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current Assets:
Cash and cash equivalents	$ 161,996	$ 165,485
Accounts receivable (less allowances of $41,305 and $43,584 as of June 30, 2019 and December 31, 2018, respectively)	852,330	846,889
Prepaid expenses and other	200,777	195,740
Total Current Assets	1,215,103	1,208,114
Property, Plant and Equipment:
Property, plant and equipment	7,840,423	7,600,949
Less—Accumulated depreciation	(3,281,864)	(3,111,392)
Property, Plant and Equipment, Net	4,558,559	4,489,557
Other Assets, Net:
Goodwill	4,473,424	4,441,030
Customer relationships, customer inducements and data center lease-based intangibles	1,467,025	1,506,522
Operating lease right-of-use assets (see Note 2.d.)	1,793,807	0
Other	213,064	211,995
Total Other Assets, Net	7,947,320	6,159,547
Total Assets	13,720,982	11,857,218
Current Liabilities:
Current portion of long-term debt	123,527	126,406
Accounts payable	303,988	318,765
Accrued expenses and other current liabilities (includes current portion of operating lease liabilities, see Note 2.d.)	920,493	780,781
Deferred revenue	268,779	264,823
Total Current Liabilities	1,616,787	1,490,775
Long-term Debt, net of current portion	8,390,183	8,016,417
Long-term Operating Lease Liabilities, net of current portion (see Note 2.d.)	1,655,477	0
Other Long-term Liabilities	131,909	111,331
Deferred Rent (see Note 2.d.)	0	121,864
Deferred Income Taxes	194,532	183,836
Commitments and Contingencies (see Note 7)
Redeemable Noncontrolling Interests	73,113	70,532
Iron Mountain Incorporated Stockholders' Equity:
Preferred stock (par value $0.01; authorized 10,000,000 shares; none issued and outstanding)	0	0
Common stock (par value $0.01; authorized 400,000,000 shares; issued and outstanding 287,061,769 and 286,321,009 shares as of June 30, 2019 and December 31, 2018, respectively)	2,870	2,863
Additional paid-in capital	4,281,584	4,263,348
(Distributions in excess of earnings) Earnings in excess of distributions	(2,364,812)	(2,139,493)
Accumulated other comprehensive items, net	(261,821)	(265,664)
Total Iron Mountain Incorporated Stockholders' Equity	1,657,821	1,861,054
Noncontrolling Interests	1,160	1,409
Total Equity	1,658,981	1,862,463
Total Liabilities and Equity	$ 13,720,982	$ 11,857,218

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Accounts receivable, allowances	$ 41,305	$ 43,584
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, authorized shares	10,000,000	10,000,000
Preferred stock, issued shares	0	0
Preferred stock, outstanding shares	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized shares	400,000,000	400,000,000
Common stock, issued shares	287,061,769	286,321,009
Common stock, outstanding shares	287,061,769	286,321,009

CONSOLIDATED STATEMENTS OF OPER

CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues:
Revenues	$ 1,066,907	$ 1,060,823	$ 2,120,770	$ 2,103,281
Operating Expenses:
Cost of sales (excluding depreciation and amortization)	465,102	451,464	926,646	900,185
Selling, general and administrative	252,764	252,225	523,323	529,395
Depreciation and amortization	164,331	156,220	326,814	316,798
(Gain) Loss on disposal/write-down of property, plant and equipment, net (see Notes 2.j. and 2.m.)	(8,405)	(546)	(7,803)	(1,676)
Total Operating Expenses	873,792	859,363	1,768,980	1,744,702
Operating Income (Loss)	193,115	201,460	351,790	358,579
Interest Expense, Net (includes Interest Income)	105,314	102,196	207,750	199,898
Other (Income) Expense, Net	(15,192)	(19,056)	18	1,095
Income (Loss) from Continuing Operations Before Provision (Benefit) for Income Taxes	102,993	118,320	144,022	157,586
Provision (Benefit) for Income Taxes	10,646	26,057	21,199	25,934
Income (Loss) from Continuing Operations	92,347	92,263	122,823	131,652
Income (Loss) from Discontinued Operations, Net of Tax	128	(360)	104	(822)
Net Income (Loss)	92,475	91,903	122,927	130,830
Less: Net Income (Loss) Attributable to Noncontrolling Interests	34	142	925	610
Net Income (Loss) Attributable to Iron Mountain Incorporated	$ 92,441	$ 91,761	$ 122,002	$ 130,220
Earnings (Losses) per Share—Basic:
Income (Loss) from Continuing Operations (in dollars per share)	$ 0.32	$ 0.32	$ 0.43	$ 0.46
Total Income (Loss) from Discontinued Operations, Net of Tax (in dollars per share)	0	0	0	0
Net Income (Loss) Attributable to Iron Mountain Incorporated (in dollars per share)	0.32	0.32	0.43	0.46
Earnings (Losses) per Share—Diluted:
Income (Loss) from Continuing Operations (in dollars per share)	0.32	0.32	0.42	0.46
Total Income (Loss) from Discontinued Operations, Net of Tax (in dollars per share)	0	0	0	0
Net Income (Loss) Attributable to Iron Mountain Incorporated (in dollars per share)	$ 0.32	$ 0.32	$ 0.42	$ 0.45
Weighted Average Common Shares Outstanding-Basic (in shares)	286,925,000	285,984,000	286,727,000	285,622,000
Weighted Average Common Shares Outstanding-Diluted (in shares)	287,481,288	286,569,251	287,487,056	286,281,565
Storage rental
Revenues:
Revenues	$ 669,288	$ 655,439	$ 1,332,262	$ 1,306,588
Service
Revenues:
Revenues	$ 397,619	$ 405,384	$ 788,508	$ 796,693

CONSOLIDATED STATEMENTS OF OP_2

CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Interest income	$ 1,461	$ 2,280	$ 3,246	$ 3,666

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net Income (Loss)	$ 92,475	$ 91,903	$ 122,927	$ 130,830
Other Comprehensive (Loss) Income:
Foreign Currency Translation Adjustment	(5,791)	(139,172)	12,400	(107,521)
Change in Fair Value of Interest Rate Swap Agreements	(4,931)	2,388	(7,605)	2,203
Total Other Comprehensive (Loss) Income	(10,722)	(136,784)	4,795	(105,318)
Comprehensive Income (Loss)	81,753	(44,881)	127,722	25,512
Comprehensive Income (Loss) Attributable to Noncontrolling Interests	173	(3,274)	1,877	(1,247)
Comprehensive Income (Loss) Attributable to Iron Mountain Incorporated	$ 81,580	$ (41,607)	$ 125,845	$ 26,759

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	(Distributions in Excess of Earnings) Earnings in Excess of Distributions	Accumulated Other Comprehensive Items, Net	Noncontrolling Interests	Redeemable Noncontrolling Interests	Over-Allotment Option	Over-Allotment OptionCommon Stock	Over-Allotment OptionAdditional Paid-in Capital	At The Market (ATM) Equity Program	At The Market (ATM) Equity ProgramCommon Stock	At The Market (ATM) Equity ProgramAdditional Paid-in Capital
Increase (Decrease) in Stockholders' Equity
Cumulative-effect adjustment for adoption | Accounting Standards Update 2014-09	$ (30,233)			$ (30,233)
Balance (in shares) at Dec. 31, 2017		283,110,183
Balance at Dec. 31, 2017	2,285,134	$ 2,831	$ 4,164,562	(1,779,674)	$ (103,989)	$ 1,404
Increase (Decrease) in Stockholders' Equity
Issuance of shares under employee stock purchase plan and option plans and stock-based compensation (in shares)		540,558
Issuance of shares under employee stock purchase plan and option plans and stock-based compensation	13,805	$ 6	13,799
Issuance of shares								$ 76,192	$ 22	$ 76,170	$ 8,716	$ 2	$ 8,714
Issuance of shares (in shares)									2,175,000			273,486
Change in value of redeemable noncontrolling interests	(6,351)		(6,351)				$ 6,351
Parent cash dividends declared (see Note 8)	(338,251)			(338,251)
Foreign currency translation adjustment	(105,512)				(105,664)	152
Change in fair value of interest rate swap agreements	2,203				2,203
Net income (loss)	130,171
Net income (loss)	130,830			130,220		(49)
Balance at Jun. 30, 2018	2,035,874	$ 2,861	4,256,894	(2,017,938)	(207,450)	1,507
Balance (in shares) at Jun. 30, 2018		286,099,227
Redeemable Noncontrolling Interest at Dec. 31, 2017							91,418
Increase (Decrease) in Temporary Equity [Roll Forward]
Change in equity related to redeemable noncontrolling interests	(6,351)		(6,351)				6,351
Foreign currency translation adjustment							(2,009)
Net income (loss)							659
Noncontrolling interests dividends							(1,079)
Redeemable Noncontrolling Interest at Jun. 30, 2018							95,340
Increase (Decrease) in Stockholders' Equity
Cumulative-effect adjustment for adoption | Accounting Standards Update 2014-09	(772)			(772)
Balance (in shares) at Mar. 31, 2018		285,923,405
Balance at Mar. 31, 2018	2,241,342	$ 2,859	4,250,757	(1,939,720)	(74,082)	1,528
Increase (Decrease) in Stockholders' Equity
Issuance of shares under employee stock purchase plan and option plans and stock-based compensation (in shares)		175,822
Issuance of shares under employee stock purchase plan and option plans and stock-based compensation	12,373	$ 2	12,371
Change in value of redeemable noncontrolling interests	(6,234)		(6,234)				6,234
Parent cash dividends declared (see Note 8)	(169,207)			(169,207)
Foreign currency translation adjustment	(135,758)				(135,756)	(2)
Change in fair value of interest rate swap agreements	2,388				2,388
Net income (loss)	91,742
Net income (loss)	91,903			91,761		(19)
Balance at Jun. 30, 2018	2,035,874	$ 2,861	4,256,894	(2,017,938)	(207,450)	1,507
Balance (in shares) at Jun. 30, 2018		286,099,227
Redeemable Noncontrolling Interest at Mar. 31, 2018							92,877
Increase (Decrease) in Temporary Equity [Roll Forward]
Change in equity related to redeemable noncontrolling interests	(6,234)		(6,234)				6,234
Foreign currency translation adjustment							(3,414)
Net income (loss)							161
Noncontrolling interests dividends							(518)
Redeemable Noncontrolling Interest at Jun. 30, 2018							95,340
Increase (Decrease) in Stockholders' Equity
Cumulative-effect adjustment for adoption | Accounting Standards Update 2016-02	$ 5,781			5,781
Balance (in shares) at Dec. 31, 2018	286,321,009	286,321,009
Balance at Dec. 31, 2018	$ 1,862,463	$ 2,863	4,263,348	(2,139,493)	(265,664)	1,409
Increase (Decrease) in Stockholders' Equity
Issuance of shares under employee stock purchase plan and option plans and stock-based compensation (in shares)		740,760
Issuance of shares under employee stock purchase plan and option plans and stock-based compensation	19,697	$ 7	19,690
Change in value of redeemable noncontrolling interests	(1,454)		(1,454)				1,454
Parent cash dividends declared (see Note 8)	(353,102)			(353,102)
Foreign currency translation adjustment	11,448				11,448
Change in fair value of interest rate swap agreements	(7,605)				(7,605)
Net income (loss)	121,753
Net income (loss)	122,927			122,002		(249)
Balance at Jun. 30, 2019	$ 1,658,981	$ 2,870	4,281,584	(2,364,812)	(261,821)	1,160
Balance (in shares) at Jun. 30, 2019	287,061,769	287,061,769
Redeemable Noncontrolling Interest at Dec. 31, 2018	$ 70,532						70,532
Increase (Decrease) in Temporary Equity [Roll Forward]
Change in equity related to redeemable noncontrolling interests	(1,454)		(1,454)				1,454
Foreign currency translation adjustment							952
Net income (loss)							1,174
Noncontrolling interests dividends							(999)
Redeemable Noncontrolling Interest at Jun. 30, 2019	73,113						73,113
Balance (in shares) at Mar. 31, 2019		286,829,854
Balance at Mar. 31, 2019	1,737,608	$ 2,868	4,264,978	(2,280,611)	(250,960)	1,333
Increase (Decrease) in Stockholders' Equity
Issuance of shares under employee stock purchase plan and option plans and stock-based compensation (in shares)		231,915
Issuance of shares under employee stock purchase plan and option plans and stock-based compensation	16,774	$ 2	16,772
Change in value of redeemable noncontrolling interests	(166)		(166)				166
Parent cash dividends declared (see Note 8)	(176,642)			(176,642)
Foreign currency translation adjustment	(5,930)				(5,930)
Change in fair value of interest rate swap agreements	(4,931)				(4,931)
Net income (loss)	92,268
Net income (loss)	92,475			92,441		(173)
Balance at Jun. 30, 2019	$ 1,658,981	$ 2,870	4,281,584	$ (2,364,812)	$ (261,821)	$ 1,160
Balance (in shares) at Jun. 30, 2019	287,061,769	287,061,769
Redeemable Noncontrolling Interest at Mar. 31, 2019							73,102
Increase (Decrease) in Temporary Equity [Roll Forward]
Change in equity related to redeemable noncontrolling interests	$ (166)		$ (166)				166
Foreign currency translation adjustment							139
Net income (loss)							207
Noncontrolling interests dividends							(501)
Redeemable Noncontrolling Interest at Jun. 30, 2019	$ 73,113						$ 73,113

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash Flows from Operating Activities:
Net income (loss)	$ 122,927	$ 130,830
Loss (income) from discontinued operations	(104)	822
Adjustments to reconcile net income (loss) to cash flows from operating activities:
Depreciation	228,333	224,933
Amortization (includes amortization of deferred financing costs and discounts of $8,208 and $7,580 for the six months ended June 30, 2019 and 2018, respectively)	106,689	99,445
Revenue reduction associated with amortization of customer inducements and above- and below-market leases	7,178	7,925
Stock-based compensation expense	21,020	16,073
Provision (benefit) for deferred income taxes	2,753	(741)
(Gain) loss on disposal/write-down of property, plant and equipment, net (see Note 2.j.)	(7,803)	(1,676)
Foreign currency transactions and other, net	(7,505)	497
(Increase) decrease in assets	(53,038)	(54,729)
Increase (decrease) in liabilities	9,281	(29,573)
Cash Flows from Operating Activities - Continuing Operations	429,731	393,806
Cash Flows from Operating Activities - Discontinued Operations	0	(477)
Cash Flows from Operating Activities	429,731	393,329
Cash Flows from Investing Activities:
Capital expenditures (see Liquidity and Capital Resources section of Management's Discussion & Analysis of Financial Condition and Results of Operations)	(367,131)	(217,601)
Cash paid for acquisitions, net of cash acquired	(44,651)	(1,666,869)
Acquisition of customer relationships	(33,375)	(23,383)
Customer inducements	(5,841)	(4,041)
Contract fulfillment costs and third-party commissions	(51,346)	(9,809)
Investments in joint ventures (see Note 9)	(19,222)	0
Proceeds from sales of property and equipment and other, net	46,832	207
Cash Flows from Investing Activities—Continuing Operations	(474,734)	(1,921,496)
Cash Flows from Investing Activities—Discontinued Operations	5,061	0
Cash Flows from Investing Activities	(469,673)	(1,921,496)
Cash Flows from Financing Activities:
Repayment of revolving credit facility, term loan facilities and other debt	(2,602,922)	(7,876,796)
Proceeds from revolving credit facility, term loan facilities and other debt	2,998,107	8,944,416
Debt repayment and equity distribution to noncontrolling interests	(999)	(1,079)
Parent cash dividends	(353,357)	(337,052)
Net proceeds associated with the Over-Allotment Option	0	76,192
Net proceeds associated with the At the Market (ATM) Program	0	8,716
Net (payments) proceeds associated with employee stock-based awards	(1,727)	(2,259)
Payment of debt financing and stock issuance costs	0	(13,385)
Cash Flows from Financing Activities - Continuing Operations	39,102	798,753
Cash Flows from Financing Activities - Discontinued Operations	0	0
Cash Flows from Financing Activities	39,102	798,753
Effect of Exchange Rates on Cash and Cash Equivalents	(2,649)	(8,093)
(Decrease) Increase in Cash and Cash Equivalents	(3,489)	(737,507)
Cash and Cash Equivalents, including Restricted Cash, Beginning of Period	165,485	925,699
Cash and Cash Equivalents, including Restricted Cash, End of Period	161,996	188,192
Supplemental Information:
Cash Paid for Interest	201,602	185,804
Cash Paid for Income Taxes, Net	38,302	33,858
Non-Cash Investing and Financing Activities:
Financing Leases (see Note 2.d.)	13,662	34,260
Accrued Capital Expenditures	66,154	49,320
Accrued Purchase Price and Other Holdbacks	2,394	26,089
Dividends Payable	$ 181,731	$ 173,301

CONSOLIDATED STATEMENTS OF CA_2

CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Statement of Cash Flows [Abstract]
Deferred financing costs and discount included in Amortization	$ 8,208	$ 7,580

General

General	6 Months Ended
	Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
General	General The interim condensed consolidated financial statements are presented herein and, in the opinion of management, reflect all adjustments of a normal recurring nature necessary for a fair presentation. Interim results are not necessarily indicative of results for a full year. Iron Mountain Incorporated, a Delaware corporation ("IMI"), and its subsidiaries ("we" or "us") provide storage of physical records and data backup media, information management solutions and enterprise-class colocation and wholesale data center space that help organizations in various locations throughout North America, Europe, Latin America, Asia and Africa. We offer comprehensive records and information management services and data management services, along with the expertise and experience to address complex storage and information management challenges such as rising storage rental costs, legal and regulatory compliance and disaster recovery requirements. We provide secure and reliable data center facilities to protect digital information and ensure the continued operation of our customers’ information technology infrastructure, with flexible deployment options, including both colocation and wholesale space. The unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the United States Securities and Exchange Commission (the "SEC"). Certain information and footnote disclosures normally included in the annual financial statements prepared in accordance with accounting principles generally accepted in the United States of America ("GAAP") have been omitted pursuant to those rules and regulations, but we believe that the disclosures included herein are adequate to make the information presented not misleading. The Condensed Consolidated Financial Statements and Notes thereto, which are included herein, should be read in conjunction with the Consolidated Financial Statements and Notes thereto for the year ended December 31, 2018 included in our Annual Report on Form 10-K filed with the SEC on February 14, 2019 (our "Annual Report"). We have been organized and have operated as a real estate investment trust for United States federal income tax purposes ("REIT") beginning with our taxable year ended December 31, 2014. On January 10, 2018, we completed the acquisition of IO Data Centers, LLC ("IODC") (the "IODC Transaction"). See Note 3. On January 1, 2019, we adopted Accounting Standards Update ("ASU") No. 2016-02, Leases (Topic 842), as amended ("ASU 2016-02"). See Note 2.d.

Summary of Significant Accounti

Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Summary of Significant Accounting Policies	Summary of Significant Accounting PoliciesThis Note 2 to Notes to Condensed Consolidated Financial Statements provides information and disclosure regarding certain of our significant accounting policies and should be read in conjunction with Note 2 to Notes to Consolidated Financial Statements included in our Annual Report, which may provide additional information with regard to the accounting policies set forth herein and other of our significant accounting policies. a. Cash, Cash Equivalents and Restricted Cash Cash and cash equivalents include cash on hand and cash invested in highly liquid short-term securities, which have remaining maturities at the date of purchase of less than 90 days . Cash and cash equivalents are carried at cost, which approximates fair value. At June 30, 2019 and December 31, 2018, we had approximately $9,059 and $15,141 , respectively, of restricted cash held by certain financial institutions related to bank guarantees. b. Goodwill and Other Intangible Assets and Liabilities Goodwill Since December 31, 2018, there have been no changes to our accounting polices related to the accounting for goodwill. As of June 30, 2019 and December 31, 2018 , no factors were identified that would alter our October 1, 2018 goodwill impairment analysis. Our reporting units as of December 31, 2018 are described in detail in Note 2.h. to Notes to Consolidated Financial Statements included in our Annual Report. On March 19, 2019, we divested the business included in our former Consumer Storage reporting unit, which had no goodwill associated with it at December 31, 2018 or at the date of the divestment. See Note 9 for additional information. The goodwill associated with acquisitions completed during the first six months of 2019 (which are described in Note 3) has been incorporated into our reporting units as they existed as of December 31, 2018. The changes in the carrying value of goodwill attributable to each reportable operating segment for the six months ended June 30, 2019 are as follows: North American North American Western European Business Other International Business Global Data Center Business Corporate and Other Business Total Goodwill balance, net of accumulated amortization as of December 31, 2018 $ 2,251,795 $ 493,491 $ 381,806 $ 818,223 $ 425,956 $ 69,759 $ 4,441,030 Deductible goodwill acquired during the year 5,501 — — 2,758 — — 8,259 Non-deductible goodwill acquired during the year — — 5,011 4,387 — 1,904 11,302 Fair value and other adjustments(1) 55 — 959 2,842 258 (422 ) 3,692 Currency effects 7,704 2,093 (2,851 ) 1,907 193 95 9,141 Goodwill balance, net accumulated amortization as of June 30, 2019 $ 2,265,055 $ 495,584 $ 384,925 $ 830,117 $ 426,407 $ 71,336 $ 4,473,424 Accumulated Goodwill Impairment Balance as of December 31, 2018 $ 85,909 $ — $ 46,500 $ — $ — $ 3,011 $ 135,420 Accumulated Goodwill Impairment Balance as of June 30, 2019 $ 85,909 $ — $ 46,500 $ — $ — $ 3,011 $ 135,420 _______________________________________________________________________________ (1) Total fair value and other adjustments primarily include $3,755 in net adjustments related to property, plant and equipment, customer relationships and data center lease-based intangible assets and deferred income taxes and other liabilities offset by $63 of cash received related to certain acquisitions completed in 2018. Finite-lived Intangible Assets and Liabilities Finite-lived intangible assets and liabilities are primarily comprised of customer relationship intangible assets, customer inducements and data center intangible assets and liabilities (which include data center in-place lease intangible assets, data center tenant relationship intangible assets, data center above-market in-place lease intangible assets and data center below-market in-place lease intangible assets). Since December 31, 2018, there have been no changes to our accounting policies related to the accounting for any of our finite-lived intangible assets and liabilities as disclosed in Note 2.i. to Notes to Consolidated Financial Statements included in our Annual Report. The gross carrying amount and accumulated amortization of our finite-lived intangible assets as of June 30, 2019 and December 31, 2018 are as follows: June 30, 2019 December 31, 2018 Gross Carrying Accumulated Net Carrying Gross Carrying Accumulated Net Carrying Assets: Customer relationship intangible assets $ 1,766,769 $ (511,672 ) $ 1,255,097 $ 1,718,919 $ (455,705 ) $ 1,263,214 Customer inducements 52,542 (29,091 ) 23,451 56,478 (34,181 ) 22,297 Data center lease-based intangible assets(1) 266,263 (77,786 ) 188,477 271,818 (50,807 ) 221,011 Third-party commissions asset(2) 31,391 (1,874 ) 29,517 30,071 (1,089 ) 28,982 $ 2,116,965 $ (620,423 ) $ 1,496,542 $ 2,077,286 $ (541,782 ) $ 1,535,504 Liabilities: Data center below-market leases $ 12,765 $ (2,954 ) $ 9,811 $ 12,318 $ (1,642 ) $ 10,676 _______________________________________________________________________________ (1) Includes data center in-place lease intangible assets, data center tenant relationship intangible assets and data center above-market in-place lease intangible assets. (2) Third-party commissions asset is included in Other, a component of Other assets, net in the accompanying Condensed Consolidated Balance Sheets as of June 30, 2019 and December 31, 2018. The third-party commissions asset is primarily comprised of additional payments associated with the execution of future customer contracts through the one-year anniversary of the acquisition of IODC, as described in Note 3. Other finite-lived intangible assets, including trade names, noncompetition agreements and trademarks, are capitalized and amortized and are included in depreciation and amortization in the accompanying Condensed Consolidated Statements of Operations for the three and six months ended June 30, 2019 and 2018. The other finite-lived intangible assets as of June 30, 2019 and December 31, 2018 are as follows: June 30, 2019 December 31, 2018 Gross Carrying Accumulated Net Carrying Gross Carrying Accumulated Net Carrying Other finite-lived intangible assets (included in Other, a component of other assets, net) $ 19,960 $ (16,482 ) $ 3,478 $ 20,310 $ (14,798 ) $ 5,512 Amortization expense associated with finite-lived intangible assets, revenue reduction associated with the amortization of customer inducements and net revenue reduction associated with the amortization of data center above-market leases and data center below-market leases for the three and six months ended June 30, 2019 and 2018 are as follows: Three Months Ended June 30, Six Months Ended 2019 2018 2019 2018 Amortization expense included in depreciation and amortization associated with: Customer relationship and customer inducement intangible assets $ 28,283 $ 28,813 $ 56,164 $ 57,619 Data center in-place leases and tenant relationships 11,372 7,563 23,981 18,401 Third-party commissions asset and other finite-lived intangible assets 2,184 1,659 2,941 2,844 Revenue reduction associated with amortization of: Customer inducements $ 2,598 $ 2,968 $ 5,338 $ 5,553 Data center above-market leases and data center below-market leases 935 1,293 1,840 2,372 c. Revenues Since December 31, 2018, there have been no changes to our accounting policies related to the accounting for revenues as disclosed in Note 2.l. to Notes to Consolidated Financial Statements included in our Annual Report. The costs of the initial intake of customer records into physical storage ("Intake Costs") and capitalized commissions asset (collectively, "Contract Fulfillment Costs") as of June 30, 2019 and December 31, 2018 are as follows: June 30, 2019 December 31, 2018 Description Location in Balance Sheet Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Intake Costs asset Other (within Other Assets, Net) $ 34,915 $ (19,398 ) $ 15,517 $ 39,748 $ (24,504 ) $ 15,244 Capitalized commissions asset Other (within Other Assets, Net) 48,564 (17,895 ) 30,669 58,424 (34,637 ) 23,787 Amortization expense associated with the Intake Costs asset and capitalized commissions asset for the three and six months ended June 30, 2019 and 2018 are as follows: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Intake Costs asset $ 2,835 $ 2,891 $ 5,514 $ 5,621 Capitalized commissions asset 5,935 3,793 9,881 7,380 Deferred revenue liabilities are reflected as follows in our Condensed Consolidated Balance Sheets: Description Location in Balance Sheet June 30, 2019 December 31, 2018 Deferred revenue - Current Deferred revenue $ 268,779 $ 264,823 Deferred revenue - Long-term Other Long-term Liabilities 25,436 26,401 Data Center Lessor Considerations Our data center business features storage rental provided to customers at contractually specified rates over a fixed contractual period. Prior to January 1, 2019, our data center revenue contracts were accounted for in accordance with Accounting Standards Codification (“ASC”) No. 840, Leases ("ASC 840"). On January 1, 2019, we adopted ASU 2016-02, as described in more detail in Note 2.d. Beginning on January 1, 2019, our data center revenue contracts will be accounted for in accordance with ASU 2016-02. ASU 2016-02 provides a practical expedient which allows lessors to account for nonlease components (such as power and connectivity, in the case of our data center business) with the related lease component if both the timing and pattern of transfer are the same for nonlease components and the lease component, and the lease component would be classified as an operating lease. The single combined component is accounted for under ASU 2016-02 if the lease component is the predominant component and is accounted for under ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606) ("ASU 2014-09"), if the nonlease components are the predominant components. We have elected to take this practical expedient. Storage rental revenue associated with our data center business was $60,582 and $120,300 for the three and six months ended June 30, 2019, respectively, which includes approximately $9,900 and $19,000 of revenue associated with power and connectivity for the three and six months ended June 30, 2019, respectively. The revenue related to the service component of our data center business remains unchanged from the adoption of ASU 2016-02 and is recognized in the period the related services are provided. Our accounting treatment for data center revenue was not significantly impacted by the adoption of ASU 2016-02. The future minimum lease payments we expect to receive under non-cancellable data center operating leases, for which we are the lessor, excluding month to month leases, for the next five years are as follows: Future minimum lease payments 2019 (excluding the six months ended June 30, 2019) $ 103,016 2020 155,581 2021 111,945 2022 79,763 2023 61,684 d. Leases We lease facilities for certain warehouses, data centers and office space. We also have land leases, including those on which certain facilities are located. The majority of our leased facilities are classified as operating leases that, on average, have initial lease terms of five to 10 years , with one or more lease renewal options to extend the lease term. Our lease renewal option terms generally range from one to five years . The exercise of the lease renewal option is at our sole discretion and may contain fixed rent, fair market value based rent or Consumer Price Index rent escalation clauses. We include option periods in the lease term when our failure to renew the lease would result in an economic disincentive, thereby making it reasonably certain that we will renew the lease. We recognize straight line rental expense over the life of the lease and any fair market value or Consumer Price Index rent escalations are recognized as variable lease expense in the period in which the obligation is incurred. In addition, we lease certain vehicles and equipment. Vehicle and equipment leases have lease terms ranging from one to seven years . In February 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-02, Leases (Topic 842) which requires lessees to recognize assets and liabilities on the balance sheet for the rights and obligations created by all leases, both operating and financing (formerly referred to as capital leases under ASC 840). ASU 2016-02 requires certain qualitative and quantitative disclosures designed to give financial statement users information on the amount, timing, and uncertainty of cash flows arising from leases. We adopted ASU 2016-02 on January 1, 2019 on a modified retrospective basis under which we recognized and measured leases existing at, or entered into after, the beginning of the period of adoption. Therefore, we applied ASC 840 to all earlier comparative periods (prior to the adoption of ASU 2016-02), including disclosures, and recognized the effects of applying ASU 2016-02 as a cumulative-effect adjustment to retained earnings as of January 1, 2019, the effective date of the standard. As such, the comparative Condensed Consolidated Balance Sheet as of December 31, 2018 has not been restated to reflect the adoption of ASU 2016-02. Accordingly, the majority of the amount presented as deferred rent liabilities on our Consolidated Balance Sheet as of December 31, 2018 is now included in the calculation of operating lease right-of-use assets and any remaining amounts are now classified within other liability line items on our Condensed Consolidated Balance Sheet as of June 30, 2019. The transition guidance associated with ASU 2016-02 also permitted certain practical expedients. We elected the "package of 3" practical expedients permitted under the transition guidance which, among other things, allowed us to carryforward our historical lease classifications. We also adopted an accounting policy which provides that leases with an initial term of 12 months or less will not be included within the lease right-of-use assets and lease liabilities recognized on our Condensed Consolidated Balance Sheets after the adoption of ASU 2016-02. We will continue to recognize the lease payments for those leases with an initial term of 12 months or less in the Condensed Consolidated Statements of Operations on a straight-line basis over the lease term. The lease right-of-use assets and related lease liabilities are classified as either operating or financing. Lease right-of-use assets are calculated as the net present value of future payments plus any capitalized initial direct costs less any tenant improvements or lease incentives. Lease liabilities are calculated as the net present value of future payments. In calculating the present value of the lease payments, we will utilize the rate stated within the lease (in the limited circumstances when such rate is available) or, if no rate is explicitly stated, we have elected to utilize a rate that reflects our securitized incremental borrowing rate by geography for the lease term. In July 2018, the FASB issued ASU 2018-11, Leases - Targeted Improvements ("ASU 2018-11"). ASU 2018-11 provides a practical expedient which allows lessees to account for nonlease components (which include common area maintenance, taxes, and insurance) with the related lease component. Any variable nonlease components are not included within the lease right-of-use asset and lease liability on the Condensed Consolidated Balance Sheets, and instead, are reflected as an expense in the period incurred. We have elected to take this practical expedient upon adoption of ASU 2016-02. At January 1, 2019, we recognized the cumulative effect of initially applying ASU 2016-02 as an adjustment to the opening balance of (Distributions in excess of earnings) Earnings in excess of distributions, resulting in an increase of approximately $5,800 to stockholders' equity due to certain build to suit leases that were accounted for as financing leases under ASC 840, Leases , but are accounted for as operating leases under ASU 2016-02 at January 1, 2019. Operating and financing lease right-of-use assets and lease liabilities as of June 30, 2019 and January 1, 2019 (date of adoption of ASU 2016-02) are as follows: Description Location in Balance Sheet June 30, 2019 January 1, 2019 Assets: Operating lease right-of-use assets(1) Operating lease right-of-use assets $ 1,793,807 $ 1,825,721 Financing lease right-of-use assets, net of accumulated depreciation(2) Property, plant and equipment, net 344,320 361,078 Total $ 2,138,127 $ 2,186,799 Liabilities: Current Operating lease liabilities Accrued expenses and other current liabilities $ 212,968 $ 209,911 Financing lease liabilities Current portion of long-term debt 50,116 50,437 Total current lease liabilities 263,084 260,348 Long-term Operating lease liabilities Long-term operating lease liabilities, net of current portion 1,655,477 1,685,771 Financing lease liabilities Long-term Debt, net of current portion 331,233 350,263 Total long-term lease liabilities 1,986,710 2,036,034 Total $ 2,249,794 $ 2,296,382 ______________________________________________________________ (1) At June 30, 2019, these assets are comprised of approximately 98% real estate related assets (which include land, buildings and racking) and 2% non-real estate related assets (which include warehouse equipment, vehicles, furniture and fixtures and computer hardware and software). (2) At June 30, 2019, these assets are comprised of approximately 62% real estate related assets and 38% non-real estate related assets. The components of the lease expense for the three and six months ended June 30, 2019 are as follows: Description Location in Statement of Operations Three Months Ended Six Months Ended June 30, 2019 Operating lease cost(1) Cost of sales and Selling, general and administrative $ 113,392 $ 222,571 Financing lease cost: Depreciation of financing lease right-of-use assets Depreciation and amortization $ 14,942 $ 31,271 Interest expense for financing lease liabilities Interest expense, net 4,925 11,067 Total financing lease cost $ 19,867 $ 42,338 ______________________________________________________________ (1) Of the $113,392 incurred for the three months ended June 30, 2019, $110,441 is included within Cost of sales and $2,951 is included within Selling, general and administrative expenses. Of the $222,571 incurred for the six months ended June 30, 2019, $216,335 is included within Cost of sales and $6,236 is included within Selling, general and administrative expenses. Operating lease cost includes variable lease costs of $23,847 and $46,610 for the three and six months ended June 30, 2019, respectively. We sublease certain real estate to third parties. We recognized sublease income of $1,671 and $3,554 for the three and six months ended June 30, 2019, respectively. Weighted average remaining lease terms and discount rates as of June 30, 2019 are as follows: Remaining Lease Term: Operating leases 11.0 Years Financing leases 11.0 Years Discount Rate: Operating leases 7.1% Financing leases 5.6% The estimated minimum future lease payments as of June 30, 2019, are as follows: Year Operating Leases(1) Sublease Income Financing Leases(1) 2019 (excluding the six months ended June 30, 2019) $ 171,378 $ (3,494 ) $ 40,635 2020 321,670 (5,728 ) 60,377 2021 295,696 (4,828 ) 54,766 2022 271,552 (4,462 ) 48,071 2023 246,252 (4,333 ) 40,351 Thereafter 1,482,286 (10,185 ) 296,260 Total minimum lease payments 2,788,834 $ (33,030 ) 540,460 Less amounts representing interest or imputed interest (920,389 ) (159,111 ) Present value of lease obligations $ 1,868,445 $ 381,349 The estimated minimum future lease payments as of December 31, 2018 are as follows: Year Operating Leases(1) Sublease Income Financing Leases(1)(2) 2019 $ 323,454 $ (7,525 ) $ 80,513 2020 293,276 (7,200 ) 71,335 2021 267,379 (7,063 ) 61,269 2022 246,128 (6,694 ) 52,832 2023 221,808 (6,409 ) 44,722 Thereafter 1,287,807 (6,279 ) 377,750 Total minimum lease payments $ 2,639,852 $ (41,170 ) 688,421 Less amounts representing interest (241,248 ) Present value of lease obligations $ 447,173 _______________________________________________________________________________ (1) Estimated minimum future lease payments exclude variable common area maintenance charges, insurance and taxes. Differences in estimated lease payments between June 30, 2019 and December 31, 2018 are primarily related to adjustments to account for certain build to suit leases that were accounted for as financing obligations under ASC 840 but are accounted for as operating leases under ASU 2016-02 and foreign currency exchange rate impacts. (2) Includes capital lease and financing obligations associated with build to suit lease transactions at December 31, 2018. As of June 30, 2019, we do not have any material operating or financing leases that are signed but have not yet commenced and we have certain leases with related parties which are not material to our consolidated financial statements. Other information: Supplemental cash flow information relating to our leases for the six months ended June 30, 2019 is as follows: Cash paid for amounts included in measurement of lease liabilities: Six Months Ended Operating cash flows used in operating leases $ 167,426 Financing cash flows used in financing leases $ 31,146 Non-cash items: Operating lease modifications and reassessments $ 14,024 New operating leases (including acquisitions) $ 87,482 New financing leases, modifications and reassessments $ 13,662 e. Stock-Based Compensation We record stock-based compensation expense, utilizing the straight-line method, for the cost of stock options, restricted stock units ("RSUs"), performance units ("PUs") and shares of stock issued under our employee stock purchase plan (together, "Employee Stock-Based Awards"). There have been no significant changes to our accounting policies, assumptions and valuation methodologies related to the accounting for our Employee Stock-Based Awards as disclosed in Note 2.n. to Notes to Consolidated Financial Statements included in our Annual Report. For our Employee Stock-Based Awards made on or after February 20, 2019, we have included the following retirement provision: Upon an employee’s retirement on or after attaining age 58, if the sum of (i) the award recipient’s age at retirement and (ii) the award recipient’s years of service with the company totals at least 70, the award recipient is entitled to continued vesting of any outstanding Employee Stock-Based Awards which include the 2019 Retirement Criteria subsequent to their retirement, provided that, for awards granted in the year of retirement, their retirement occurs on or after July 1st (the “2019 Retirement Criteria”). Accordingly, (i) grants of Employee Stock-Based Awards to an employee who has met the 2019 Retirement Criteria on or before the date of grant, or will meet the Retirement Criteria before July 1 st of the year of the grant, will be expensed between the date of grant and July 1 st of the grant year and (ii) grants of Employee Stock-Based Awards to employees who will meet the 2019 Retirement Criteria during the award’s normal vesting period will be expensed between the date of grant and the date upon which the award recipient meets the 2019 Retirement Criteria. Stock options and RSUs granted to recipients who meet the 2019 Retirement Criteria will continue vesting on the original vesting schedule, and the stock options will remain exercisable up to three years after retirement, or the original expiration date of the stock options, if earlier. PUs granted to recipients who meet the 2019 Retirement Criteria will continue to vest and be delivered in accordance with the original vesting schedule of the applicable PU award and remain subject to the same performance conditions. Stock-based compensation expense for Employee Stock-Based Awards for the three and six months ended June 30, 2019 was $12,501 ( $11,649 after tax or $0.04 per basic and diluted share) and $21,020 ( $19,585 after tax or $0.07 per basic and diluted share), respectively, and for the three and six months ended June 30, 2018 was $8,689 ( $8,032 after tax or $0.03 per basic and diluted share) and $16,073 ( $14,865 after tax or $0.05 per basic and diluted share), respectively. The substantial majority of the stock-based compensation expense for Employee Stock-Based Awards is included in Selling, general and administrative expenses in the accompanying Condensed Consolidated Statements of Operations. As of June 30, 2019 , unrecognized compensation cost related to the unvested portion of our Employee Stock-Based Awards was $61,833 and is expected to be recognized over a weighted-average period of 2.1 years. Stock Options A summary of stock option activity for the six months ended June 30, 2019 is as follows: Stock Options Outstanding at December 31, 2018 4,271,834 Granted 920,706 Exercised (194,480 ) Forfeited (12,525 ) Expired (15,647 ) Outstanding at June 30, 2019 4,969,888 Options exercisable at June 30, 2019 3,160,175 Options expected to vest 1,704,441 Restricted Stock Units The fair value of RSUs vested during the three and six months ended June 30, 2019 and 2018 is as follows: Three Months Ended Six Months Ended 2019 2018 2019 2018 Fair value of RSUs vested $ 2,375 $ 676 $ 17,710 $ 16,006 A summary of RSU activity for the six months ended June 30, 2019 is as follows: RSUs Non-vested at December 31, 2018 1,196,566 Granted 731,801 Vested (527,239 ) Forfeited (55,070 ) Non-vested at June 30, 2019 1,346,058 Performance Units The fair value of earned PUs that vested during the three and six months ended June 30, 2019 and 2018 is as follows: Three Months Ended Six Months Ended 2019 2018 2019 2018 Fair value of earned PUs that vested $ — $ — $ 6,503 $ 3,033 A summary of PU activity for the six months ended June 30, 2019 is as follows: Original PU Adjustment(1) Total Non-vested at December 31, 2018 967,049 (299,948 ) 667,101 Granted 380,856 — 380,856 Vested (169,523 ) — (169,523 ) Forfeited/Performance or Market Conditions Not Achieved (11,093 ) (14,850 ) (25,943 ) Non-vested at June 30, 2019 1,167,289 (314,798 ) 852,491 _______________________________________________________________________________ (1) Represents an increase or decrease in the number of original PUs awarded based on either the final performance criteria or market condition achievement at the end of the performance period of such PUs or a change in estimated awards based on the forecasted performance against the predefined targets. As of June 30, 2019 , we expected 100% achievement of the predefined revenue, return on invested capital and Adjusted EBITDA (as defined in Note 6) targets associated with the awards of PUs made in 2019 , 2018 and 2017 . f. Income (Loss) Per Share—Basic and Diluted Basic income (loss) per common share is calculated by dividing income (loss) by the weighted average number of common shares outstanding. The calculation of diluted income (loss) per share is consistent with that of basic income (loss) per share, but gives effect to all potential common shares (that is, securities such as stock options, RSUs or PUs) that were outstanding during the period, unless the effect is antidilutive. The calculation of basic and diluted income (loss) per share for the three and six months ended June 30, 2019 and 2018 are as follows: Three Months Ended Six Months Ended 2019 2018 2019 2018 Income (loss) from continuing operations $ 92,347 $ 92,263 $ 122,823 $ 131,652 Less: Net income (loss) attributable to noncontrolling interests 34 142 925 610 Income (loss) from continuing operations (utilized in numerator of Earnings Per Share calculation) $ 92,313 $ 92,121 $ 121,898 $ 131,042 Income (loss) from discontinued operations, net of tax $ 128 $ (360 ) $ 104 $ (822 ) Net income (loss) attributable to Iron Mountain Incorporated $ 92,441 $ 91,761 $ 122,002 $ 130,220 Weighted-average shares—basic 286,925,000 285,984,000 286,727,000 285,622,000 Effect of dilutive potential stock options 148,629 237,708 190,016 243,636 Effect of dilutive potential RSUs and PUs 407,659 347,543 570,040 415,929 Weighted-average shares—diluted 287,481,288 286,569,251 287,487,056 286,281,565 Earnings (losses) per share—basic: Income (loss) from continuing operations $ 0.32 $ 0.32 $ 0.43 $ 0.46 Income (loss) from discontinued operations, net of tax — — — — Net income (loss) attributable to Iron Mountain Incorporated(1) $ 0.32 $ 0.32 $ 0.43 $ 0.46 Earnings (losses) per share—diluted: Income (loss) from continuing operations $ 0.32 $ 0.32 $ 0.42 $ 0.46 Income (loss) from discontinued operations, net of tax — — — — Net income (loss) attributable to Iron Mountain Incorporated(1) $ 0.32 $ 0.32 $ 0.42 $ 0.45 Antidilutive stock options, RSUs and PUs, excluded from the calculation 5,004,112 3,272,502 4,494,637 3,257,322 _______________________________________________________________________________ (1) Columns may not foot due to rounding. g. Income Taxes We provide for income taxes during interim periods based on our estimate of the effective tax rate for the year. Our estimate of the effective tax rates for the years ending December 31, 2019 and 2018 reflect the impact of the U.S. tax reform legislation, commonly referred to as the Tax Cuts and Jobs Act (the “Tax Reform Legislation”). See Note 7 to Notes to Consolidated Financial Statements included in our Annual Report for additional information regarding the impact the Tax Reform Legislation had on us. Discrete items and changes in our estimate of the annual effective tax rate are recorded in the period they occur. Our effective tax rate is subject to variability in the future due to, among other items: (1) changes in the mix of income between our qualified REIT subsidiaries ("QRSs") and our domestic taxable REIT subsidiaries ("TRSs"), as well as among the jurisdictions in which we operate; (2) tax law changes; (3) volatility in foreign exchange gains and losses; (4) the timing of the establishment and reversal of tax reserves; and (5) our ability to utilize net operating losses that we generate. Our effective tax rates for the three and six months ended June 30, 2019 and 2018 are as follows: Three Months Ended Six Months Ended 2019(1) 2018(1) 2019(1) 2018(2) Effective Tax Rate 10.3 % 22.0 % 14.7 % 16.5 % _______________________________________________________________________________ (1) The primary reconciling items between the federal statutory tax rate of 21.0% and our overall effective tax rate for the three and six months ended June 30, 2019 and for the three months ended June 30, 2018 were the benefit derived from the dividends paid deduction and the impact of differences in the tax rates at which our foreign earnings are subject, including foreign exchange gains and losses in different jurisdictions with different tax rates. (2) The primary reconciling items between the federal statutory tax rate of 21.0% and our overall effective tax rate for the six months ended June 30, 2018 were the benefit derived from the dividends paid deduction, a discrete tax benefit of approximately $14,000 associated with the resolution of a tax matter and the impact of differences in the tax rates at which our foreign earnings are subject, including foreign exchange gains and losses in different jurisdictions with different tax rates. h. Fair Value Measurements Our financial assets or liabilities that are carried at fair value are required to be measured using inputs from the three levels of the fair value hierarchy. A financial asset or liability's classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. The three levels of the fair value hierarchy are as follows: Level 1—Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that we have the ability to access at the measurement date. Level 2—Inputs include quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (i.e., interest rates, yield curves, etc.), and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs). Level 3—Unobservable inputs that reflect our assumptions about the assumptions that market participants would use in pricing the asset or liability. The assets and liabilities carried at fair value measured on a recurring basis as of J

Acquisitions

Acquisitions	6 Months Ended
	Jun. 30, 2019
Business Combinations [Abstract]
Acquisitions	We account for acquisitions using the acquisition method of accounting, and, accordingly, the assets and liabilities acquired are recorded at their estimated fair values and the results of operations for each acquisition have been included in our consolidated results from their respective acquisition dates. Acquisitions Completed During the Six Months Ended June 30, 201 9 During the six months ended June 30, 2019, in order to enhance our existing operations in the United States, the United Kingdom, Switzerland, Thailand and Latvia and to expand our operations into Bulgaria, we completed the acquisition of six storage and records management companies and one art storage company for total cash consideration of approximately $36,800 . Purchase Price Allocation A summary of the cumulative consideration paid and the preliminary allocation of the purchase price paid for all of our 2019 acquisitions through June 30, 2019 is as follows: Six Months Ended Cash Paid (gross of cash acquired)(1) $ 39,072 Purchase Price Holdbacks and Other 2,394 Total Consideration 41,466 Fair Value of Identifiable Assets Acquired: Cash 2,285 Accounts Receivable, Prepaid Expenses and Other Assets 3,164 Property, Plant and Equipment(2) 4,538 Customer Relationship Intangible Assets 15,670 Operating Lease Right-of-Use Assets 13,256 Accounts Payable, Accrued Expenses and Other Liabilities (2,124 ) Operating Lease Liabilities (13,256 ) Deferred Income Taxes (1,628 ) Total Fair Value of Identifiable Net Assets Acquired 21,905 Goodwill Initially Recorded(3) $ 19,561 _______________________________________________________________________________ (1) Included in cash paid for acquisitions in the Condensed Consolidated Statement of Cash Flows for the six months ended June 30, 2019 is net cash acquired of $2,285 and contingent and other payments, net of $7,864 related to acquisitions made in previous years. (2) Consists primarily of leasehold improvements, racking structures and warehouse equipment. These assets are depreciated using the straight-line method with the useful lives as noted in Note 2.f. to Notes to Consolidated Financial Statements included in our Annual Report. (3) The goodwill associated with acquisitions is primarily attributable to the assembled workforce, expanded market opportunities and costs and other operating synergies anticipated upon the integration of the operations of us and the acquired businesses. See Note 6 to Notes to Consolidated Financial Statements included in our Annual Report for additional information regarding our allocations of the purchase price for acquisitions. The preliminary purchase price allocations that are not finalized as of June 30, 2019 primarily relate to the final assessment of the fair values of intangible assets and liabilities (primarily customer relationship intangible assets), property, plant and equipment (primarily building, building improvements and racking structures), right-of-use assets and liabilities associated with acquired operating leases, contingencies and income taxes (primarily deferred income taxes), primarily associated with the acquisitions we closed in 2019. As the valuation of certain assets and liabilities for purposes of purchase price allocations are preliminary in nature, they are subject to adjustment as additional information is obtained about the facts and circumstances regarding these assets and liabilities that existed at the acquisition date. Any adjustments to our estimates of purchase price allocation will be made in the periods in which the adjustments are determined and the cumulative effect of such adjustments will be calculated as if the adjustments had been completed as of the acquisition dates. Adjustments recorded during the three months ended June 30, 2019 were not material to our results from operations. Acquisition of IO Data Centers in 2018 On January 10, 2018, we completed the IODC Transaction. At the closing of the IODC Transaction, we paid approximately $1,347,000 . In February 2019, we paid approximately $31,000 in additional purchase price associated with the execution of customer contracts from the closing through the one-year anniversary of the IODC Transaction, which was accrued at December 31, 2018. This amount, net of amortization, is reported as a third-party commissions asset as a component of Other within Other assets, net, in our Condensed Consolidated Balance Sheets at June 30, 2019 and December 31, 2018. The unaudited consolidated pro forma financial information (the "Pro Forma Financial Information") below summarizes the combined results of us and IODC on a pro forma basis as if the IODC Transaction had occurred on January 1, 2017. The Pro Forma Financial Information is presented for informational purposes and is not necessarily indicative of the results of operations that would have been achieved if the acquisition had taken place on January 1, 2017. The Pro Forma Financial Information, for the period presented, includes purchase accounting adjustments (including amortization expenses from acquired intangible assets and depreciation of acquired property, plant and equipment). We and IODC collectively incurred $28,064 of operating expenditures to complete the IODC Transaction (including advisory and professional fees). These operating expenditures have been reflected within the results of operations in the Pro Forma Financial Information as if they were incurred on January 1, 2017. Three Months Ended June 30, 2018 Six Months Ended Total Revenues $ 1,060,823 $ 2,106,771 Income from Continuing Operations $ 92,263 $ 141,604 Per Share Income from Continuing Operations - Basic $ 0.32 $ 0.49 Per Share Income from Continuing Operations - Diluted $ 0.32 $ 0.49 In addition to our acquisition of IODC, we completed certain other acquisitions during the first six months of 2019 and in fiscal year 2018. The Pro Forma Financial Information does not reflect these acquisitions due to the insignificant impact of these acquisitions on our consolidated results of operations.

Debt

Debt	6 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
Debt	Long-term debt is as follows: June 30, 2019 December 31, 2018 Debt (inclusive of discount) Unamortized Deferred Financing Costs Carrying Amount Fair Debt (inclusive of discount) Unamortized Deferred Financing Costs Carrying Amount Fair Revolving Credit Facility(1) $ 1,181,376 $ (12,548 ) $ 1,168,828 $ 1,181,376 $ 793,832 $ (14,117 ) $ 779,715 $ 793,832 Term Loan A(1) 234,375 — 234,375 234,375 240,625 — 240,625 240,625 Term Loan B(2) 689,782 (8,118 ) 681,664 668,784 693,169 (8,742 ) 684,427 660,013 Australian Dollar Term Loan (the "AUD Term Loan")(3) 230,048 (2,691 ) 227,357 231,506 233,955 (3,084 ) 230,871 235,645 UK Bilateral Revolving Credit Facility ("UK Bilateral Facility")(4) 177,762 (2,030 ) 175,732 177,762 178,299 (2,357 ) 175,942 178,299 4 3 / 8 % Senior Notes due 2021 (the "4 3 / 8 % Notes")(5) 500,000 (3,295 ) 496,705 505,000 500,000 (4,155 ) 495,845 488,750 6% Senior Notes due 2023 (the "6% Notes due 2023")(5) 600,000 (4,576 ) 595,424 612,000 600,000 (5,126 ) 594,874 606,000 5 3 / 8 % CAD Senior Notes due 2023 (the "CAD Notes") 190,972 (2,335 ) 188,637 192,882 183,403 (2,506 ) 180,897 186,154 5 3 / 4 % Senior Subordinated Notes due 2024 (the "5 3 / 4 % Notes")(5) 1,000,000 (7,096 ) 992,904 1,010,000 1,000,000 (7,782 ) 992,218 940,000 3% Euro Senior Notes due 2025 (the "Euro Notes")(5) 341,128 (3,781 ) 337,347 351,113 343,347 (4,098 ) 339,249 321,029 3 7 / 8 % GBP Senior Notes due 2025 (the "GBP Notes") 507,891 (6,074 ) 501,817 502,192 509,425 (6,573 ) 502,852 453,811 5 3 / 8 % Senior Notes due 2026 (the "5 3 / 8 % Notes") 250,000 (2,971 ) 247,029 252,500 250,000 (3,185 ) 246,815 224,375 4 7 / 8 % Senior Notes due 2027 (the "4 7 / 8 % Notes")(5) 1,000,000 (11,731 ) 988,269 990,000 1,000,000 (12,442 ) 987,558 855,000 5 1 / 4 % Senior Notes due 2028 (the "5 1 / 4 % Notes")(5) 825,000 (10,333 ) 814,667 825,000 825,000 (10,923 ) 814,077 713,625 Real Estate Mortgages, Financing Lease Liabilities and Other 559,622 (425 ) 559,197 559,622 606,702 (171 ) 606,531 606,702 Accounts Receivable Securitization Program(6) 254,962 (149 ) 254,813 254,962 221,673 (218 ) 221,455 221,673 Mortgage Securitization Program(7) 50,000 (1,055 ) 48,945 50,000 50,000 (1,128 ) 48,872 50,000 Total Long-term Debt 8,592,918 (79,208 ) 8,513,710 8,229,430 (86,607 ) 8,142,823 Less Current Portion (123,527 ) — (123,527 ) (126,406 ) — (126,406 ) Long-term Debt, Net of Current Portion $ 8,469,391 $ (79,208 ) $ 8,390,183 $ 8,103,024 $ (86,607 ) $ 8,016,417 ______________________________________________________________ (1) Collectively, the credit agreement ("Credit Agreement"). The Credit Agreement consists of a revolving credit facility (the "Revolving Credit Facility") and a term loan (the "Term Loan A"). The Credit Agreement is scheduled to mature on June 3, 2023. Of the $1,181,376 of outstanding borrowings under the Revolving Credit Facility as of June 30, 2019, 1,028,900 was denominated in United States dollars, 76,800 was denominated in Canadian dollars and 82,500 was denominated in Euros. In addition, we also had various outstanding letters of credit totaling $35,250 . The remaining amount available for borrowing under the Revolving Credit Facility as of June 30, 2019 was $533,374 (which amount represents the maximum availability as of such date). The average interest rate in effect under the Credit Agreement was 4.0% as of June 30, 2019 . The average interest rate in effect under the Revolving Credit Facility as of June 30, 2019 was 4.0% and the interest rate in effect under Term Loan A as of June 30, 2019 was 4.2% . (2) In connection with the 2018 First Amendment (as defined in Note 5 to Notes to Consolidated Financial Statements included in our Annual Report), Iron Mountain Information Management, LLC ("IMIM") entered into an incremental term loan activation notice (the "Activation Notice") with certain lenders pursuant to which the lenders party to the Activation Notice agreed to provide commitments to fund an incremental term loan B in the amount of $700,000 (the "Term Loan B"). On March 26, 2018, IMIM borrowed the full amount of the Term Loan B. The Term Loan B is scheduled to mature on January 2, 2026. The interest rate in effect as of June 30, 2019 was 4.2% . The amount of debt for the Term Loan B reflects an unamortized original issue discount of $1,468 and $1,581 as of June 30, 2019 and December 31, 2018, respectively. (3) The interest rate in effect as of June 30, 2019 was 5.1% . We had 329,688 Australian dollars outstanding on the AUD Term Loan as of June 30, 2019. The amount of debt for the AUD Term Loan reflects an unamortized original issue discount of $1,458 and $1,690 as of June 30, 2019 and December 31, 2018, respectively. (4) The interest rate in effect as of June 30, 2019 was 3.1% . (5) Collectively, the "Parent Notes". (6) The interest rate in effect as of June 30, 2019 was 3.4% . (7) The interest rate in effect as of June 30, 2019 was 3.5% . See Note 4 to Notes to Consolidated Financial Statements included in our Annual Report for additional information regarding our Credit Agreement and our other long-term debt, including the direct obligors of each of our debt instruments as well as information regarding the fair value of our debt instruments (including the levels of the fair value hierarchy used to determine the fair value of our debt instruments). The levels of the fair value hierarchy used to determine the fair value of our debt as of June 30, 2019 are consistent with the levels of the fair value hierarchy used to determine the fair value of our debt as of December 31, 2018 (which are disclosed in our Annual Report). Additionally, see Note 5 to Notes to Consolidated Financial Statements included in our Annual Report for information regarding which of our consolidated subsidiaries guarantee certain of our debt instruments. There have been no material changes to our long-term debt since December 31, 2018. Cash Pooling As described in greater detail in Note 4 to Notes to Consolidated Financial Statements included in our Annual Report, certain of our subsidiaries participate in cash pooling arrangements (the “Cash Pools”) in order to help manage global liquidity requirements. We currently utilize two separate cash pools, one of which we utilize to manage global liquidity requirements for our QRSs (the "QRS Cash Pool") and the other for our TRSs (the "TRS Cash Pool"). The approximate amount of the net cash position for our QRS Cash Pool and the TRS Cash Pool and the approximate amount of the gross position and outstanding debit balances for each of these pools as of June 30, 2019 and December 31, 2018 are as follows: June 30, 2019 December 31, 2018 Gross Cash Position Outstanding Debit Balances Net Cash Position Gross Cash Position Outstanding Debit Balances Net Cash Position QRS Cash Pool $ 308,200 $ (306,500 ) $ 1,700 $ 300,800 $ (298,800 ) $ 2,000 TRS Cash Pool 295,500 (292,700 ) 2,800 281,500 (279,300 ) 2,200 The net cash position balances as of June 30, 2019 and December 31, 2018 are reflected as cash and cash equivalents in the Condensed Consolidated Balance Sheets. Debt Covenants The Credit Agreement, our indentures and other agreements governing our indebtedness contain certain restrictive financial and operating covenants, including covenants that restrict our ability to complete acquisitions, pay cash dividends, incur indebtedness, make investments, sell assets and take certain other corporate actions. The covenants do not contain a rating trigger. Therefore, a change in our debt rating would not trigger a default under the Credit Agreement, our indentures or other agreements governing our indebtedness. The Credit Agreement uses EBITDAR-based calculations as the primary measures of financial performance, including leverage and fixed charge coverage ratios. Our leverage and fixed charge coverage ratios under the Credit Agreement as of June 30, 2019 and December 31, 2018, as well as our leverage ratio under our indentures as of June 30, 2019 and December 31, 2018 are as follows: June 30, 2019 December 31, 2018 Maximum/Minimum Allowable Net total lease adjusted leverage ratio 5.8 5.6 Maximum allowable of 6.5 Net secured debt lease adjusted leverage ratio 2.8 2.6 Maximum allowable of 4.0 Bond leverage ratio (not lease adjusted) 6.1 5.8 Maximum allowable of 6.5-7.0(1) Fixed charge coverage ratio 2.2 2.2 Minimum allowable of 1.5 ______________________________________________________________ (1) The maximum allowable leverage ratio under our indentures for the 4 7 / 8 % Notes, the GBP Notes and the 5 1 / 4 % Notes is 7.0 , while the maximum allowable leverage ratio under the indentures pertaining to our remaining senior and senior subordinated notes is 6.5 . In certain instances as provided in our indentures, we have the ability to incur additional indebtedness that would result in our bond leverage ratio exceeding the maximum allowable ratio under our indentures and still remain in compliance with the covenant. Noncompliance with these leverage and fixed charge coverage ratios would have a material adverse effect on our financial condition and liquidity.

Selected Consolidated Financial

Selected Consolidated Financial Statements of Parent, Guarantors and Non-Guarantors	6 Months Ended
	Jun. 30, 2019
Selected Consolidated Financial Statements of Parent, Guarantors, Canada Company and Non-Guarantors
Selected Consolidated Financial Statements of Parent, Guarantors and Non-Guarantors	The following data summarizes the consolidating results of IMI on the equity method of accounting as of June 30, 2019 and December 31, 2018 and for the three and six months ended June 30, 2019 and 2018 and are prepared on the same basis as the consolidated financial statements. The Parent Notes, the CAD Notes, the GBP Notes, and the 5 3 / 8 % Notes are guaranteed by the subsidiaries referred to below as the Guarantors. These subsidiaries are 100% owned by IMI. The guarantees are full and unconditional, as well as joint and several. Additionally, IMI guarantees the CAD Notes, which were issued by Iron Mountain Canada Operations ULC ("Canada Company"), the GBP Notes, which were issued by Iron Mountain (UK) PLC ("IM UK"), and the 5 3 / 8 % Notes, which were issued by Iron Mountain US Holdings, Inc., which is one of the Guarantors. Canada Company and IM UK do not guarantee the Parent Notes. The subsidiaries that do not guarantee the Parent Notes, the CAD Notes, the GBP Notes, and the 5 3 / 8 % Notes are referred to below as the Non-Guarantors. In the normal course of business, we periodically change the ownership structure of our subsidiaries to meet the requirements of our business. In the event of such changes, we recast the prior period financial information within this footnote to conform to the current period presentation in the period such changes occur. Generally, these changes do not alter the designation of the underlying subsidiaries as Guarantors or Non-Guarantors. However, they may change whether the underlying subsidiary is owned by the Parent, a Guarantor or a Non-Guarantor. If such a change occurs, the amount of investment in subsidiaries in the below Condensed Consolidated Balance Sheets and equity in the earnings (losses) of subsidiaries, net of tax in the below Condensed Consolidated Statements of Operations and Comprehensive Income (Loss) with respect to the relevant Parent, Guarantors, Non-Guarantors and Eliminations columns also would change. CONDENSED CONSOLIDATED BALANCE SHEETS June 30, 2019 Parent Guarantors Non- Eliminations Consolidated Assets Current Assets: Cash and cash equivalents(1) $ 6 $ 124,553 $ 106,923 $ (69,486 ) $ 161,996 Accounts receivable — 65,357 786,973 — 852,330 Intercompany receivable — 1,184,345 — (1,184,345 ) — Prepaid expenses and other — 87,505 113,301 (29 ) 200,777 Total Current Assets 6 1,461,760 1,007,197 (1,253,860 ) 1,215,103 Property, Plant and Equipment, Net 145 3,013,538 1,544,876 — 4,558,559 Other Assets, Net: Long-term notes receivable from affiliates and intercompany receivable 5,072,926 — — (5,072,926 ) — Investment in subsidiaries 1,982,052 1,073,877 — (3,055,929 ) — Goodwill — 2,857,968 1,615,456 — 4,473,424 Operating lease right-of-use assets — 921,540 872,267 — 1,793,807 Other 2 965,060 715,027 — 1,680,089 Total Other Assets, Net 7,054,980 5,818,445 3,202,750 (8,128,855 ) 7,947,320 Total Assets $ 7,055,131 $ 10,293,743 $ 5,754,823 $ (9,382,715 ) $ 13,720,982 Liabilities and Equity Intercompany Payable $ 892,894 $ — $ 291,451 $ (1,184,345 ) $ — Debit Balances Under Cash Pools — — 69,486 (69,486 ) — Current Portion of Long-Term Debt — 54,848 68,708 (29 ) 123,527 Total Other Current Liabilities (includes current portion of operating lease liabilities) 270,521 679,750 542,989 — 1,493,260 Long-Term Debt, Net of Current Portion 4,225,317 2,265,699 1,899,167 — 8,390,183 Long-Term Operating Lease Liabilities, Net of Current Portion — 857,375 798,102 — 1,655,477 Long-Term Notes Payable to Affiliates and Intercompany Payable — 5,072,926 — (5,072,926 ) — Other Long-term Liabilities 8,578 51,721 266,142 — 326,441 Commitments and Contingencies (See Note 7) Redeemable Noncontrolling Interests — — 73,113 — 73,113 Total Iron Mountain Incorporated Stockholders' Equity 1,657,821 1,311,424 1,744,505 (3,055,929 ) 1,657,821 Noncontrolling Interests — — 1,160 — 1,160 Total Equity 1,657,821 1,311,424 1,745,665 (3,055,929 ) 1,658,981 Total Liabilities and Equity $ 7,055,131 $ 10,293,743 $ 5,754,823 $ (9,382,715 ) $ 13,720,982 ______________________________________________________________ (1) Included within Cash and Cash Equivalents at June 30, 2019 is approximately $74,000 and $0 of cash on deposit associated with our Cash Pools for the Guarantors and Non-Guarantors, respectively. CONDENSED CONSOLIDATED BALANCE SHEETS (Continued) December 31, 2018 Parent Guarantors Non- Eliminations Consolidated Assets Current Assets: Cash and cash equivalents(1) $ 132 $ 61,650 $ 169,318 $ (65,615 ) $ 165,485 Accounts receivable — 47,900 798,989 — 846,889 Intercompany receivable — 818,463 — (818,463 ) — Prepaid expenses and other 93 108,879 86,797 (29 ) 195,740 Total Current Assets 225 1,036,892 1,055,104 (884,107 ) 1,208,114 Property, Plant and Equipment, Net 190 3,002,104 1,487,263 — 4,489,557 Other Assets, Net: Long-term notes receivable from affiliates and intercompany receivable 4,954,686 — — (4,954,686 ) — Investment in subsidiaries 1,862,048 983,018 — (2,845,066 ) — Goodwill — 2,858,539 1,582,491 — 4,441,030 Other — 979,483 739,034 — 1,718,517 Total Other Assets, Net 6,816,734 4,821,040 2,321,525 (7,799,752 ) 6,159,547 Total Assets $ 6,817,149 $ 8,860,036 $ 4,863,892 $ (8,683,859 ) $ 11,857,218 Liabilities and Equity Intercompany Payable $ 462,927 $ — $ 355,536 $ (818,463 ) $ — Debit Balances Under Cash Pools — 10,612 55,003 (65,615 ) — Current Portion of Long-Term Debt — 63,703 62,732 (29 ) 126,406 Total Other Current Liabilities 268,373 616,826 479,170 — 1,364,369 Long-Term Debt, Net of Current Portion 4,223,822 1,877,649 1,914,946 — 8,016,417 Long-Term Notes Payable to Affiliates and Intercompany Payable — 4,954,686 — (4,954,686 ) — Other Long-term Liabilities 973 115,994 300,064 — 417,031 Commitments and Contingencies (See Note 7) Redeemable Noncontrolling Interests — — 70,532 — 70,532 Total Iron Mountain Incorporated Stockholders' Equity 1,861,054 1,220,566 1,624,500 (2,845,066 ) 1,861,054 Noncontrolling Interests — — 1,409 — 1,409 Total Equity 1,861,054 1,220,566 1,625,909 (2,845,066 ) 1,862,463 Total Liabilities and Equity $ 6,817,149 $ 8,860,036 $ 4,863,892 $ (8,683,859 ) $ 11,857,218 ______________________________________________________________ (1) Included within Cash and Cash Equivalents at December 31, 2018 is approximately $57,200 and $12,700 of cash on deposit associated with our Cash Pools for the Guarantors and Non-Guarantors, respectively. CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) Three Months Ended June 30, 2019 Parent Guarantors Non- Eliminations Consolidated Revenues: Storage rental $ — $ 411,159 $ 258,129 $ — $ 669,288 Service — 246,090 151,529 — 397,619 Intercompany revenues — 1,158 4,540 (5,698 ) — Total Revenues — 658,407 414,198 (5,698 ) 1,066,907 Operating Expenses: Cost of sales (excluding depreciation and amortization) — 260,675 204,427 — 465,102 Intercompany — 4,540 1,158 (5,698 ) — Selling, general and administrative 62 173,443 79,259 — 252,764 Depreciation and amortization 22 104,594 59,715 — 164,331 Loss (Gain) on disposal/write-down of property, plant and equipment, net — 26,786 (35,191 ) — (8,405 ) Total Operating Expenses 84 570,038 309,368 (5,698 ) 873,792 Operating (Loss) Income (84 ) 88,369 104,830 — 193,115 Interest Expense (Income), Net(1) 49,601 8,640 47,073 — 105,314 Other Expense (Income), Net 359 4,487 (20,038 ) — (15,192 ) (Loss) Income from Continuing Operations Before Provision (Benefit) for Income Taxes (50,044 ) 75,242 77,795 — 102,993 Provision (Benefit) for Income Taxes — 1,153 9,493 — 10,646 Equity in the (Earnings) Losses of Subsidiaries, Net of Tax (142,485 ) (69,710 ) — 212,195 — Income (Loss) from Continuing Operations 92,441 143,799 68,302 (212,195 ) 92,347 Income (Loss) from Discontinued Operations, Net of Tax — 144 (16 ) — 128 Net Income (Loss) 92,441 143,943 68,286 (212,195 ) 92,475 Less: Net Income (Loss) Attributable to Noncontrolling Interests — — 34 — 34 Net Income (Loss) Attributable to Iron Mountain Incorporated $ 92,441 $ 143,943 $ 68,252 $ (212,195 ) $ 92,441 Net Income (Loss) $ 92,441 $ 143,943 $ 68,286 $ (212,195 ) $ 92,475 Other Comprehensive (Loss) Income: Foreign Currency Translation Adjustments (4,280 ) — (1,511 ) — (5,791 ) Change in fair value of interest rate swap agreements (4,931 ) — — — (4,931 ) Equity in Other Comprehensive (Loss) Income of Subsidiaries (1,650 ) 1,121 — 529 — Total Other Comprehensive (Loss) Income (10,861 ) 1,121 (1,511 ) 529 (10,722 ) Comprehensive Income (Loss) 81,580 145,064 66,775 (211,666 ) 81,753 Comprehensive Income (Loss) Attributable to Noncontrolling Interests — — 173 — 173 Comprehensive Income (Loss) Attributable to Iron Mountain Incorporated $ 81,580 $ 145,064 $ 66,602 $ (211,666 ) $ 81,580 _____________________________________________________________ (1) Included within Interest Expense (Income), Net are intercompany management fees and royalty fees, which are eliminated in our consolidated financial statements. CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (Continued) Three Months Ended June 30, 2018 Parent Guarantors Non- Eliminations Consolidated Revenues: Storage rental $ — $ 397,449 $ 257,990 $ — $ 655,439 Service — 244,403 160,981 — 405,384 Intercompany revenues — 1,216 4,305 (5,521 ) — Total Revenues — 643,068 423,276 (5,521 ) 1,060,823 Operating Expenses: Cost of sales (excluding depreciation and amortization) — 251,360 200,104 — 451,464 Intercompany cost of sales — 4,305 1,216 (5,521 ) — Selling, general and administrative 36 167,739 84,450 — 252,225 Depreciation and amortization 32 96,170 60,018 — 156,220 (Gain) Loss on disposal/write-down of property, plant and equipment, net — (462 ) (84 ) — (546 ) Total Operating Expenses 68 519,112 345,704 (5,521 ) 859,363 Operating (Loss) Income (68 ) 123,956 77,572 — 201,460 Interest Expense (Income), Net(1) 50,313 3,005 48,878 — 102,196 Other Expense (Income), Net 2,767 6,575 (28,398 ) — (19,056 ) (Loss) Income from Continuing Operations Before Provision (Benefit) for Income Taxes (53,148 ) 114,376 57,092 — 118,320 Provision (Benefit) for Income Taxes — 12,509 13,548 — 26,057 Equity in the (Earnings) Losses of Subsidiaries, Net of Tax (144,909 ) (38,071 ) — 182,980 — Income (Loss) from Continuing Operations 91,761 139,938 43,544 (182,980 ) 92,263 (Loss) Income from Discontinued Operations — (273 ) (87 ) — (360 ) Net Income (Loss) 91,761 139,665 43,457 (182,980 ) 91,903 Less: Net Income (Loss) Attributable to Noncontrolling Interests — — 142 — 142 Net Income (Loss) Attributable to Iron Mountain Incorporated $ 91,761 $ 139,665 $ 43,315 $ (182,980 ) $ 91,761 Net Income (Loss) $ 91,761 $ 139,665 $ 43,457 $ (182,980 ) $ 91,903 Other Comprehensive (Loss) Income: Foreign Currency Translation Adjustment 10,257 — (149,429 ) — (139,172 ) Change in fair value of interest rate swap agreements 2,388 — — — 2,388 Equity in Other Comprehensive (Loss) Income of Subsidiaries (146,018 ) (129,860 ) — 275,878 — Total Other Comprehensive (Loss) Income (133,373 ) (129,860 ) (149,429 ) 275,878 (136,784 ) Comprehensive (Loss) Income (41,612 ) 9,805 (105,972 ) 92,898 (44,881 ) Comprehensive (Loss) Income Attributable to Noncontrolling Interests — — (3,274 ) — (3,274 ) Comprehensive (Loss) Income Attributable to Iron Mountain Incorporated $ (41,612 ) $ 9,805 $ (102,698 ) $ 92,898 $ (41,607 ) _____________________________________________________________ (1) Included within Interest Expense (Income), Net are intercompany management fees and royalty fees, which are eliminated in our consolidated financial statements. CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (Continued) Six Months Ended June 30, 2019 Parent Guarantors Non- Eliminations Consolidated Revenues: Storage rental $ — $ 814,900 $ 517,362 $ — $ 1,332,262 Service — 485,783 302,725 — 788,508 Intercompany revenues — 2,312 9,463 (11,775 ) — Total Revenues — 1,302,995 829,550 (11,775 ) 2,120,770 Operating Expenses: Cost of sales (excluding depreciation and amortization) — 523,812 402,834 — 926,646 Intercompany cost of sales — 9,463 2,312 (11,775 ) — Selling, general and administrative 149 361,265 161,909 — 523,323 Depreciation and amortization 45 207,548 119,221 — 326,814 Loss (Gain) on disposal/write-down of property, plant and equipment, net — 27,360 (35,163 ) — (7,803 ) Total Operating Expenses 194 1,129,448 651,113 (11,775 ) 1,768,980 Operating (Loss) Income (194 ) 173,547 178,437 — 351,790 Interest Expense (Income), Net(1) 99,226 12,697 95,827 — 207,750 Other Expense (Income), Net 541 5,014 (5,537 ) — 18 (Loss) Income from Continuing Operations Before Provision (Benefit) for Income Taxes (99,961 ) 155,836 88,147 — 144,022 Provision (Benefit) for Income Taxes — 2,454 18,745 — 21,199 Equity in the (Earnings) Losses of Subsidiaries, Net of Tax (221,963 ) (65,552 ) — 287,515 — Income (Loss) from Continuing Operations 122,002 218,934 69,402 (287,515 ) 122,823 Income (Loss) from Discontinued Operations — 120 (16 ) — 104 Net Income (Loss) 122,002 219,054 69,386 (287,515 ) 122,927 Less: Net Income (Loss) Attributable to Noncontrolling Interests — — 925 — 925 Net Income (Loss) Attributable to Iron Mountain Incorporated $ 122,002 $ 219,054 $ 68,461 $ (287,515 ) $ 122,002 Net Income (Loss) $ 122,002 $ 219,054 $ 69,386 $ (287,515 ) $ 122,927 Other Comprehensive Income (Loss): Foreign Currency Translation Adjustments 1,861 — 10,539 — 12,400 Change in fair value of interest rate swap agreements (7,605 ) — — — (7,605 ) Equity in Other Comprehensive Income (Loss) of Subsidiaries 9,587 8,277 — (17,864 ) — Total Other Comprehensive Income (Loss) 3,843 8,277 10,539 (17,864 ) 4,795 Comprehensive Income (Loss) 125,845 227,331 79,925 (305,379 ) 127,722 Comprehensive Income (Loss) Attributable to Noncontrolling Interests — — 1,877 — 1,877 Comprehensive Income (Loss) Attributable to Iron Mountain Incorporated $ 125,845 $ 227,331 $ 78,048 $ (305,379 ) $ 125,845 _____________________________________________________________ (1) Included within Interest Expense (Income), Net are intercompany management fees and royalty fees, which are eliminated in our consolidated financial statements. CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (Continued) Six Months Ended June 30, 2018 Parent Guarantors Non- Eliminations Consolidated Revenues: Storage rental $ — $ 793,925 $ 512,663 $ — $ 1,306,588 Service — 474,633 322,060 — 796,693 Intercompany revenues — 2,421 8,796 (11,217 ) — Total Revenues — 1,270,979 843,519 (11,217 ) 2,103,281 Operating Expenses: Cost of sales (excluding depreciation and amortization) — 497,523 402,662 — 900,185 Intercompany cost of sales — 8,796 2,421 (11,217 ) — Selling, general and administrative 79 353,087 176,229 — 529,395 Depreciation and amortization 65 198,616 118,117 — 316,798 (Gain) Loss on disposal/write-down of property, plant and equipment, net — (818 ) (858 ) — (1,676 ) Total Operating Expenses 144 1,057,204 698,571 (11,217 ) 1,744,702 Operating (Loss) Income (144 ) 213,775 144,948 — 358,579 Interest Expense (Income), Net(1) 100,254 1,497 98,147 — 199,898 Other Expense (Income), Net 1,610 8,135 (8,650 ) — 1,095 (Loss) Income from Continuing Operations Before Provision (Benefit) for Income Taxes (102,008 ) 204,143 55,451 — 157,586 Provision (Benefit) for Income Taxes — 5,797 20,137 — 25,934 Equity in the (Earnings) Losses of Subsidiaries, Net of Tax (232,228 ) (28,981 ) — 261,209 — Income (Loss) from Continuing Operations 130,220 227,327 35,314 (261,209 ) 131,652 (Loss) Income from Discontinued Operations — (695 ) (127 ) — (822 ) Net Income (Loss) 130,220 226,632 35,187 (261,209 ) 130,830 Less: Net Income (Loss) Attributable to Noncontrolling Interests — — 610 — 610 Net Income (Loss) Attributable to Iron Mountain Incorporated $ 130,220 $ 226,632 $ 34,577 $ (261,209 ) $ 130,220 Net Income (Loss) $ 130,220 $ 226,632 $ 35,187 $ (261,209 ) $ 130,830 Other Comprehensive (Loss) Income: Foreign Currency Translation Adjustment 4,622 — (112,143 ) — (107,521 ) Change in fair value of interest rate swap agreements 2,203 — — — 2,203 Equity in Other Comprehensive (Loss) Income of Subsidiaries (110,286 ) (91,524 ) — 201,810 — Total Other Comprehensive (Loss) Income (103,461 ) (91,524 ) (112,143 ) 201,810 (105,318 ) Comprehensive Income (Loss) 26,759 135,108 (76,956 ) (59,399 ) 25,512 Comprehensive (Loss) Income Attributable to Noncontrolling Interests — — (1,247 ) — (1,247 ) Comprehensive Income (Loss) Attributable to Iron Mountain Incorporated $ 26,759 $ 135,108 $ (75,709 ) $ (59,399 ) $ 26,759 ______________________________________________________ (1) Included within Interest Expense (Income), Net are intercompany management fees and royalty fees, which are eliminated in our consolidated financial statements. CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS Six Months Ended June 30, 2019 Parent Guarantors Non- Eliminations Consolidated Cash Flows from Operating Activities: Cash Flows from Operating Activities—Continuing Operations $ (75,316 ) $ 397,474 $ 107,573 $ — $ 429,731 Cash Flows from Operating Activities—Discontinued Operations — — — — — Cash Flows from Operating Activities (75,316 ) 397,474 $ 107,573 $ — $ 429,731 Cash Flows from Investing Activities: Capital expenditures — (201,784 ) (165,347 ) — (367,131 ) Cash paid for acquisitions, net of cash acquired — (9,508 ) (35,143 ) — (44,651 ) Intercompany loans to subsidiaries 430,274 10,696 — (440,970 ) — Acquisitions of customer relationships, customer inducements and data center lease-based intangibles — (68,153 ) (22,409 ) — (90,562 ) Investments in joint ventures (see Note 9) — (19,222 ) — — (19,222 ) Proceeds from sales of property and equipment and other, net — 54 46,778 — 46,832 Cash Flows from Investing Activities—Continuing Operations 430,274 (287,917 ) (176,121 ) (440,970 ) (474,734 ) Cash Flows from Investing Activities—Discontinued Operations — 2,564 2,497 — 5,061 Cash Flows from Investing Activities 430,274 (285,353 ) (173,624 ) (440,970 ) (469,673 ) Cash Flows from Financing Activities: Repayment of revolving credit facility, term loan facilities and other debt — (837,712 ) (1,765,210 ) — (2,602,922 ) Proceeds from revolving credit facility, term loan facilities and other debt — 1,209,304 1,788,803 — 2,998,107 Debit (payments) balances under cash pools — (10,612 ) 14,483 (3,871 ) — Debt (repayment to) financing from and equity (distribution to) contribution from noncontrolling interests, net — — (999 ) — (999 ) Intercompany loans from parent — (410,198 ) (30,772 ) 440,970 — Parent cash dividends (353,357 ) — — — (353,357 ) Net (payments) proceeds associated with employee stock-based awards (1,727 ) — — — (1,727 ) Cash Flows from Financing Activities—Continuing Operations (355,084 ) (49,218 ) 6,305 437,099 39,102 Cash Flows from Financing Activities—Discontinued Operations — — — — — Cash Flows from Financing Activities (355,084 ) (49,218 ) 6,305 437,099 39,102 Effect of exchange rates on cash and cash equivalents — — (2,649 ) — (2,649 ) (Decrease) Increase in cash and cash equivalents (126 ) 62,903 (62,395 ) (3,871 ) (3,489 ) Cash and cash equivalents, including Restricted Cash, beginning of period 132 61,650 169,318 (65,615 ) 165,485 Cash and cash equivalents, including Restricted Cash, $ 6 $ 124,553 $ 106,923 $ (69,486 ) $ 161,996 CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Continued) Six Months Ended June 30, 2018 Parent Guarantors Non- Eliminations Consolidated Cash Flows from Operating Activities: Cash Flows from Operating Activities—Continuing Operations $ (117,979 ) $ 409,167 $ 102,618 $ — $ 393,806 Cash Flows from Operating Activities—Discontinued Operations — (477 ) — — (477 ) Cash Flows from Operating Activities (117,979 ) 408,690 102,618 — 393,329 Cash Flows from Investing Activities: Capital expenditures — (142,737 ) (74,864 ) — (217,601 ) Cash paid for acquisitions, net of cash acquired — (1,314,370 ) (352,499 ) — (1,666,869 ) Intercompany loans to subsidiaries 370,423 19,092 — (389,515 ) — Acquisitions of customer relationships, customer inducements and data center lease-based intangibles — (24,922 ) (12,311 ) — (37,233 ) Proceeds from sales of property and equipment and other, net — — 207 — 207 Cash Flows from Investing Activities—Continuing Operations 370,423 (1,462,937 ) (439,467 ) (389,515 ) (1,921,496 ) Cash Flows from Investing Activities—Discontinued Operations — — — — — Cash Flows from Investing Activities 370,423 (1,462,937 ) (439,467 ) (389,515 ) (1,921,496 ) Cash Flows from Financing Activities: Repayment of revolving credit facility, term loan facilities and other debt — (3,657,315 ) (4,219,481 ) — (7,876,796 ) Proceeds from revolving credit facility, term loan facilities and other debt — 4,531,603 4,412,813 — 8,944,416 Debit (payments) balances under cash pools — (7,657 ) 2,850 4,807 — Debt (repayment to) financing from and equity (distribution to) contribution from noncontrolling interests, net — — (1,079 ) — (1,079 ) Intercompany loans from parent — (384,323 ) (5,192 ) 389,515 — Parent cash dividends (337,052 ) — — — (337,052 ) Net (payments) proceeds associated with employee stock-based awards (2,259 ) — — — (2,259 ) Net proceeds associated with the Over-Allotment Option exercise 76,192 — — — 76,192 Net proceeds associated with the At the Market (ATM) Program 8,716 — — — 8,716 Payment of debt financing and stock issuance costs (412 ) (12,322 ) (651 ) — (13,385 ) Cash Flows from Financing Activities—Continuing Operations (254,815 ) 469,986 189,260 394,322 798,753 Cash Flows from Financing Activities—Discontinued Operations — — — — — Cash Flows from Financing Activities (254,815 ) 469,986 189,260 394,322 798,753 Effect of exchange rates on cash and cash equivalents — — (8,093 ) — (8,093 ) (Decrease) Increase in cash and cash equivalents (2,371 ) (584,261 ) (155,682 ) 4,807 (737,507 ) Cash and cash equivalents, including Restricted Cash, beginning of period 2,433 634,317 383,675 (94,726 ) 925,699 Cash and cash equivalents, including Restricted Cash, end of period $ 62 $ 50,056 $ 227,993 $ (89,919 ) $ 188,192

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Segment Information	Our six reportable operating segments as of December 31, 2018 are described in Note 9 to Notes to Consolidated Financial Statements included in our Annual Report and are as follows: • North American Records and Information Management Business • North American Data Management Business • Western European Business • Other International Business • Global Data Center Business • Corporate and Other Business There have been no changes made to our reportable operating segments since December 31, 2018, other than the impact of the Consumer Storage Transaction (as defined in Note 9). Prior to the Consumer Storage Transaction, our consumer storage business was a component of our Corporate and Other Business Segment. The previously reported segment information has been restated to conform to the current presentation and reflects the changes to our reportable operating segments that occurred in fourth quarter of 2018 as described in Note 9 to Notes to Consolidated Financial Statements included in our Annual Report. The operations associated with acquisitions completed during the first six months of 2019 have been incorporated into our existing reportable operating segments. An analysis of our business segment information and reconciliation to the accompanying Condensed Consolidated Financial Statements is as follows: North American North American Western European Business Other International Business Global Data Center Business Corporate Business Total For the Three Months Ended June 30, 2019 Total Revenues $ 539,273 $ 96,415 $ 127,327 $ 199,823 $ 62,291 $ 41,778 $ 1,066,907 Storage Rental 313,355 66,750 78,554 128,898 60,582 21,149 669,288 Service 225,918 29,665 48,773 70,925 1,709 20,629 397,619 Depreciation and Amortization 62,691 10,100 14,328 30,760 32,671 13,781 164,331 Depreciation 46,655 7,818 10,476 17,833 19,027 11,913 113,722 Amortization 16,036 2,282 3,852 12,927 13,644 1,868 50,609 Adjusted EBITDA 245,585 53,068 44,163 58,749 27,641 (78,264 ) 350,942 Expenditures for Segment Assets 46,545 5,254 24,334 18,829 102,477 12,805 210,244 Capital Expenditures (see Liquidity and Capital Resources section of Management's Discussion & Analysis of Financial Condition and Results of Operations) 28,596 5,254 22,724 11,955 101,032 12,805 182,366 Cash Paid for Acquisitions, Net of Cash Acquired — — 366 4,862 — — 5,228 Acquisitions of Customer Relationships, Customer Inducements and Contract Fulfillment Costs and third-party commissions 17,949 — 1,244 2,012 1,445 — 22,650 For the Three Months Ended June 30, 2018 Total Revenues $ 539,080 $ 100,031 $ 133,440 $ 207,527 $ 54,895 $ 25,850 $ 1,060,823 Storage Rental 305,895 68,808 82,439 129,611 51,945 16,741 655,439 Service 233,185 31,223 51,001 77,916 2,950 9,109 405,384 Depreciation and Amortization 60,970 9,538 17,500 30,364 22,503 15,345 156,220 Depreciation 48,252 7,217 11,821 18,199 13,120 12,892 111,501 Amortization 12,718 2,321 5,679 12,165 9,383 2,453 44,719 Adjusted EBITDA 244,861 55,280 46,594 60,452 24,901 (64,533 ) 367,555 Expenditures for Segment Assets 41,364 3,643 27,559 30,287 265,173 11,052 379,078 Capital Expenditures (see Liquidity and Capital Resources section of Management's Discussion & Analysis of Financial Condition and Results of Operations) 25,122 3,643 25,096 13,921 43,162 11,052 121,996 Cash Paid for Acquisitions, Net of Cash Acquired — — — 16,188 221,707 — 237,895 Acquisitions of Customer Relationships, Customer Inducements and Contract Fulfillment Costs 16,242 — 2,463 178 304 — 19,187 North American North American Western European Business Other International Business Global Data Center Business Corporate Business Total As of and for the Six Months Ended June 30, 2019 Total Revenues $ 1,066,653 $ 193,162 $ 256,080 $ 400,779 $ 123,827 $ 80,269 $ 2,120,770 Storage Rental 620,341 133,322 159,249 258,371 120,300 40,679 1,332,262 Service 446,312 59,840 96,831 142,408 3,527 39,590 788,508 Depreciation and Amortization 122,693 20,302 29,585 61,359 64,303 28,572 326,814 Depreciation 92,407 15,831 21,423 36,051 38,040 24,581 228,333 Amortization 30,286 4,471 8,162 25,308 26,263 3,991 98,481 Adjusted EBITDA 469,268 103,620 83,372 116,873 53,652 (151,337 ) 675,448 Total Assets (1) 5,840,023 877,777 1,406,937 2,703,347 2,330,535 562,363 13,720,982 Expenditures for Segment Assets 102,810 10,886 54,435 50,083 256,182 27,948 502,344 Capital Expenditures (see Liquidity and Capital Resources section of Management's Discussion & Analysis of Financial Condition and Results of Operations) 57,284 10,886 24,840 27,104 222,589 24,428 367,131 Cash Paid for Acquisitions, Net of Cash Acquired 9,876 — 11,850 19,405 — 3,520 44,651 Acquisitions of Customer Relationships and Customer Inducements and Contract Fulfillment Costs and third-party commissions 35,650 — 17,745 3,574 33,593 — 90,562 As of and for the Six Months Ended June 30, 2018 Total Revenues $ 1,065,923 $ 199,995 $ 267,515 $ 418,294 $ 101,498 $ 50,056 $ 2,103,281 Storage Rental 610,714 138,054 166,391 261,358 97,440 32,631 1,306,588 Service 455,209 61,941 101,124 156,936 4,058 17,425 796,693 Depreciation and Amortization 123,722 19,642 35,056 62,237 44,771 31,370 316,798 Depreciation 97,390 15,240 24,579 37,263 24,500 25,961 224,933 Amortization 26,332 4,402 10,477 24,974 20,271 5,409 91,865 Adjusted EBITDA 470,599 109,132 90,560 121,199 45,691 (134,051 ) 703,130 Total Assets (1) 5,010,186 829,682 1,344,699 2,247,071 1,909,088 476,433 11,817,159 Expenditures for Segment Assets 84,545 10,496 35,039 62,447 1,703,185 25,991 1,921,703 Capital Expenditures (see Liquidity and Capital Resources section of Management's Discussion & Analysis of Financial Condition and Results of Operations) 54,992 10,496 31,143 39,063 56,273 25,634 217,601 Cash Paid for Acquisitions, Net of Cash Acquired 1,551 — — 19,396 1,645,922 — 1,666,869 Acquisitions of Customer Relationships, Customer Inducements and Contract Fulfillment Costs 28,002 — 3,896 3,988 990 357 37,233 ______________________________________________________________ (1) Excludes all intercompany receivables or payables and investment in subsidiary balances. Total assets as of June 30, 2019 reflects the adoption of ASU 2016-02. The accounting policies of the reportable operating segments are the same as those described in Note 2 and in Note 2 to Notes to Consolidated Financial Statements included in our Annual Report. Adjusted EBITDA for each segment is defined as income (loss) from continuing operations before interest expense, net, provision (benefit) for income taxes, depreciation and amortization, and also excludes certain items that we believe are not indicative of our core operating results, specifically: (i) (gain) loss on disposal/write-down of property, plant and equipment, net (including real estate); (ii) intangible impairments; (iii) other expense (income), net (which includes foreign currency transaction (gains) losses, net); and (iv) Significant Acquisition Costs (as defined below). Internally, we use Adjusted EBITDA as the basis for evaluating the performance of, and allocating resources to, our operating segments. A reconciliation of Adjusted EBITDA to income (loss) from continuing operations on a consolidated basis for the three and six months ended June 30, 2019 and 2018 is as follows: Three Months Ended Six Months Ended 2019 2018 2019 2018 Adjusted EBITDA $ 350,942 $ 367,555 $ 675,448 $ 703,130 (Add)/Deduct: Provision (Benefit) for Income Taxes 10,646 26,057 21,199 25,934 Other (Income) Expense, Net (15,192 ) (19,056 ) 18 1,095 Interest Expense, Net 105,314 102,196 207,750 199,898 (Gain) loss on disposal/write-down of property, plant and equipment, net (8,405 ) (546 ) (7,803 ) (1,676 ) Depreciation and Amortization 164,331 156,220 326,814 316,798 Significant Acquisition Costs(1) 1,901 10,421 4,647 29,429 Income (Loss) from Continuing Operations $ 92,347 $ 92,263 $ 122,823 $ 131,652 _______________________________________________________________________________ (1) As defined in Note 9 to Notes to Consolidated Financial Statements included in our Annual Report. Information as to our revenues by product and service lines by segment for the three and six months ended June 30, 2019 and 2018 are as follows: North American Records and Information Management Business North American Data Management Business Western European Business Other International Business Global Data Center Business Corporate and Other Business Total Consolidated For the Three Months Ended June 30, 2019 Records Management(1) $ 442,785 $ — $ 109,369 $ 172,433 $ — $ 26,195 $ 750,782 Data Management(1) — 93,152 16,908 18,787 — 15,583 144,430 Information Destruction(1)(2) 96,488 3,263 1,050 8,603 — — 109,404 Data Center — — — — 62,291 — 62,291 Total Revenues $ 539,273 $ 96,415 $ 127,327 $ 199,823 $ 62,291 $ 41,778 $ 1,066,907 For the Three Months Ended June 30, 2018 Records Management(1) $ 441,401 $ — $ 113,925 $ 179,194 $ — $ 11,801 $ 746,321 Data Management(1) — 97,768 19,393 19,227 — 14,049 150,437 Information Destruction(1)(2) 97,679 2,263 122 9,106 — — 109,170 Data Center — — — — 54,895 — 54,895 Total Revenues $ 539,080 $ 100,031 $ 133,440 $ 207,527 $ 54,895 $ 25,850 $ 1,060,823 For the Six Months Ended June 30, 2019 Records Management(1) $ 870,152 $ — $ 218,076 $ 345,410 $ — $ 50,540 $ 1,484,178 Data Management(1) — 187,141 36,794 38,014 — 29,729 291,678 Information Destruction(1)(2) 196,501 6,021 1,210 17,355 — — 221,087 Data Center — — — — 123,827 — 123,827 Total Revenues $ 1,066,653 $ 193,162 $ 256,080 $ 400,779 $ 123,827 $ 80,269 $ 2,120,770 For the Six Months Ended June 30, 2018 Records Management(1) $ 876,403 $ — $ 227,684 $ 360,524 $ — $ 22,205 $ 1,486,816 Data Management(1) — 195,362 39,612 39,705 — 27,851 302,530 Information Destruction(1)(2) 189,520 4,633 219 18,065 — — 212,437 Data Center — — — — 101,498 — 101,498 Total Revenues $ 1,065,923 $ 199,995 $ 267,515 $ 418,294 $ 101,498 $ 50,056 $ 2,103,281 ____________________________________________________________________________ (1) Each of the offerings within our product and service lines has a component of revenue that is storage rental related and a component that is service revenues, except for information destruction, which does not have a storage rental component. (2) Includes secure shredding services.

Commitments and Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	We are involved in litigation from time to time in the ordinary course of business. A portion of the defense and/or settlement costs associated with such litigation is covered by various commercial liability insurance policies purchased by us and, in limited cases, indemnification from third parties. Our policy is to establish reserves for loss contingencies when the losses are both probable and reasonably able to be estimated. We record legal costs associated with loss contingencies as expenses in the period in which they are incurred. There have been no material updates or changes to the matters disclosed in Note 10 to Notes to Consolidated Financial Statements included in our Annual Report. We believe that the resolution of the matters disclosed in Note 10 to Notes to Consolidated Financial Statements included in our Annual Report will not have a material impact on our consolidated financial condition, results of operations or cash flows. We have estimated a reasonably possible range for all loss contingencies, including those disclosed in Note 10 to Notes to Consolidated Financial Statements included in our Annual Report and the item below, and believe it is reasonably possible that we could incur aggregate losses in addition to amounts currently accrued for all matters up to an additional $17,000 over the next several years, of which certain amounts would be covered by insurance or indemnity arrangements. In June 2019, we received a notification of assessment from tax and customs authorities in the Netherlands related to a VAT liability of approximately 16,800 Euros. The notification of assessment is related to our customs clearing and logistics business in the Netherlands, which we acquired through the acquisition of Bonded Services of America, Inc. and Bonded Services Acquisition, Ltd. (collectively, “Bonded”) in September 2017. As part of the import and declaration services we provide in the Netherlands, we file import declaration forms to the customs authorities for all goods imported in a particular month and calculate the amount of VAT that is due on the goods being imported. In certain instances, we remit import VAT to the Dutch tax authorities and subsequently are reimbursed by the entity the goods are being imported on behalf of. In other instances, however, the payment of VAT may be deferred and paid upon the sale of the goods to the ultimate end customer in cases where the entity receiving the goods holds a valid license allowing for the deferment of VAT (referred to as an Article 23 license). In the notification of assessment, the Dutch tax authorities have asserted that (i) we inappropriately deferred VAT for goods imported under Article 23 for certain of our customers between March 2017 and August 2018 and (ii) we are liable for the amount of VAT related to those goods for which VAT was inappropriately deferred. We have responded to the notification of assessment and have requested additional information regarding the matter from the Dutch tax authorities. We believe that the amount, if assessed, would be subject to interest and potential penalties. We have established a reserve for this matter based upon our estimate of the amount of loss that is both probable and estimable. We are in the process of exploring potential recoveries (including insurance recoveries and/or claims against other third parties) against any losses we incur associated with this matter.

Stockholders' Equity Matters

Stockholders' Equity Matters	6 Months Ended
	Jun. 30, 2019
Equity [Abstract]
Stockholders' Equity Matters	Stockholders' Equity Matters Our board of directors has adopted a dividend policy under which we have paid, and in the future intend to pay, quarterly cash dividends on our common stock. The amount and timing of future dividends will continue to be subject to the approval of our board of directors, in its sole discretion, and to applicable legal requirements. In fiscal year 2018 and the first six months of 2019, our board of directors declared the following dividends: Declaration Date Dividend Record Date Total Payment Date February 14, 2018 $ 0.5875 March 15, 2018 $ 167,969 April 2, 2018 May 24, 2018 0.5875 June 15, 2018 168,078 July 2, 2018 July 24, 2018 0.5875 September 17, 2018 168,148 October 2, 2018 October 25, 2018 0.6110 December 17, 2018 174,935 January 3, 2019 February 7, 2019 0.6110 March 15, 2019 175,242 April 2, 2019 May 22, 2019 0.6110 June 17, 2019 175,389 July 2, 2019 At The Market (ATM) Equity Program As described in greater detail in Note 12 to Notes to Consolidated Financial Statements included in our Annual Report, we entered into a distribution agreement with a syndicate of 10 banks (the “Agents”) pursuant to which we may sell, from time to time, up to an aggregate sales price of $500,000 of our common stock through the Agents (the “At The Market (ATM) Equity Program”). There were no shares of common stock sold under the At The Market (ATM) Equity Program during the six months ended June 30, 2019. As of June 30, 2019, the remaining aggregate sale price of shares of our common stock available for distribution under the At The Market (ATM) Equity Program was approximately $431,200 .

Divestments

Divestments	6 Months Ended
	Jun. 30, 2019
Discontinued Operations and Disposal Groups [Abstract]
Divestments	On March 19, 2019, we contributed our customer contracts and certain intellectual property and other assets used by us to operate our consumer storage business in the United States and Canada (the "IM Consumer Storage Assets") and approximately $20,000 in cash (gross of certain transaction expenses) (the "Cash Contribution") to a joint venture entity, Makespace LLC (the "Makespace JV"), established by us and Makespace Labs, Inc. ("Makespace"), a consumer storage services provider (the "Consumer Storage Transaction"). Upon the closing of the Consumer Storage Transaction on March 19, 2019, the Makespace JV owned (i) the IM Consumer Storage Assets, (ii) the Cash Contribution and (iii) the customer contracts, intellectual property and certain other assets used by Makespace to operate its consumer storage business in the United States. As part of the Consumer Storage Transaction, we received an equity interest of approximately 34% in the Makespace JV (the "Makespace Investment"). In connection with the Consumer Storage Transaction and the Makespace Investment, we also entered into a storage and service agreement with the Makespace JV to provide certain storage and related services to the Makespace JV (see Note 11). We have concluded that the divestment of the IM Consumer Storage Assets in the Consumer Storage Transaction does not meet the criteria to be reported as a discontinued operation in our consolidated financial statements, as our decision to divest this business does not represent a strategic shift that will have a major effect on our operations and financial results. Accordingly, the revenues and expenses associated with this business are presented as a component of income (loss) from continuing operations in our Condensed Consolidated Statements of Operations for the six months ended June 30, 2019 through the closing date of the Consumer Storage Transaction and for the three and six months ended June 30, 2018 and the cash flows associated with this business are presented as a component of cash flows from continuing operations in our Condensed Consolidated Statements of Cash Flows for the six months ended June 30, 2019 through the closing date of the Consumer Storage Transaction and for the six months ended June 30, 2018. As a result of the Consumer Storage Transaction, we recorded a gain on sale of approximately $4,200 to Other expense (income), net, in the first quarter of 2019, representing the excess of the fair value of the consideration received over the sum of (i) the carrying value of our consumer storage operations and (ii) the Cash Contribution. At the closing date of the Consumer Storage Transaction, the fair value of the Makespace Investment was approximately $27,500 . We account for the Makespace Investment as an equity method investment. The carrying value of the Makespace Investment at June 30, 2019 is $23,896 , and is presented as a component of Other within Other assets, net in our Condensed Consolidated Balance Sheet.

Significant Acquisition Costs

Significant Acquisition Costs	6 Months Ended
	Jun. 30, 2019
Business Combinations [Abstract]
Significant Acquisition Costs	Significant Acquisition Costs included in the accompanying Condensed Consolidated Statements of Operations for the three and six months ended June 30, 2019 and 2018 are as follows: Three Months Ended Six Months Ended 2019 2018 2019 2018 Cost of sales (excluding depreciation and amortization) $ 1,293 $ 1,827 $ 2,191 $ 2,123 Selling, general and administrative expenses 608 8,594 2,456 27,306 Total Significant Acquisition Costs $ 1,901 $ 10,421 $ 4,647 $ 29,429 Significant Acquisition Costs included in the accompanying Condensed Consolidated Statements of Operations by segment for the three and six months ended June 30, 2019 and 2018 are as follows: Three Months Ended Six Months Ended 2019 2018 2019 2018 North American Records and Information Management Business $ — $ 3,017 $ 378 $ 3,601 North American Data Management Business — 351 — 351 Western European Business 81 1,427 81 3,579 Other International Business 951 896 1,453 1,433 Global Data Center Business 124 1,159 267 11,340 Corporate and Other Business 745 3,571 2,468 9,125 Total Significant Acquisition Costs $ 1,901 $ 10,421 $ 4,647 $ 29,429

Related Party Transactions

Related Party Transactions	6 Months Ended
	Jun. 30, 2019
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions In connection with the Consumer Storage Transaction and the Makespace Investment (both as described more fully in Note 9), we also entered into a storage and service agreement with the Makespace JV to provide certain storage and related services to the Makespace JV (the "Makespace Agreement"). Revenues and expenses associated with the Makespace Agreement are presented as a component of our North American Records and Information Management Business segment. We recognized approximately $7,400 and $7,900 of revenue, respectively, for the three and six months ended June 30, 2019, associated with the Makespace Agreement.

Summary of Significant Accoun_2

Summary of Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Cash, Cash Equivalents and Restricted Cash	Cash, Cash Equivalents and Restricted Cash Cash and cash equivalents include cash on hand and cash invested in highly liquid short-term securities, which have remaining maturities at the date of purchase of less than 90 days . Cash and cash equivalents are carried at cost, which approximates fair value.
Goodwill and Other Intangible Assets and Liabilities	Goodwill and Other Intangible Assets and Liabilities Goodwill Since December 31, 2018, there have been no changes to our accounting polices related to the accounting for goodwill. As of June 30, 2019 and December 31, 2018 , no factors were identified that would alter our October 1, 2018 goodwill impairment analysis. Our reporting units as of December 31, 2018 are described in detail in Note 2.h. to Notes to Consolidated Financial Statements included in our Annual Report. On March 19, 2019, we divested the business included in our former Consumer Storage reporting unit, which had no goodwill associated with it at December 31, 2018 or at the date of the divestment. See Note 9 for additional information. The goodwill associated with acquisitions completed during the first six months of 2019 (which are described in Note 3) has been incorporated into our reporting units as they existed as of December 31, 2018. Finite-lived Intangible Assets and Liabilities Finite-lived intangible assets and liabilities are primarily comprised of customer relationship intangible assets, customer inducements and data center intangible assets and liabilities (which include data center in-place lease intangible assets, data center tenant relationship intangible assets, data center above-market in-place lease intangible assets and data center below-market in-place lease intangible assets). Since December 31, 2018, there have been no changes to our accounting policies related to the accounting for any of our finite-lived intangible assets and liabilities as disclosed in Note 2.i. to Notes to Consolidated Financial Statements included in our Annual Report.
Revenues	Data Center Lessor Considerations Our data center business features storage rental provided to customers at contractually specified rates over a fixed contractual period. Prior to January 1, 2019, our data center revenue contracts were accounted for in accordance with Accounting Standards Codification (“ASC”) No. 840, Leases ("ASC 840"). On January 1, 2019, we adopted ASU 2016-02, as described in more detail in Note 2.d. Beginning on January 1, 2019, our data center revenue contracts will be accounted for in accordance with ASU 2016-02. ASU 2016-02 provides a practical expedient which allows lessors to account for nonlease components (such as power and connectivity, in the case of our data center business) with the related lease component if both the timing and pattern of transfer are the same for nonlease components and the lease component, and the lease component would be classified as an operating lease. The single combined component is accounted for under ASU 2016-02 if the lease component is the predominant component and is accounted for under ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606)
Leases	Leases We lease facilities for certain warehouses, data centers and office space. We also have land leases, including those on which certain facilities are located. The majority of our leased facilities are classified as operating leases that, on average, have initial lease terms of five to 10 years , with one or more lease renewal options to extend the lease term. Our lease renewal option terms generally range from one to five years . The exercise of the lease renewal option is at our sole discretion and may contain fixed rent, fair market value based rent or Consumer Price Index rent escalation clauses. We include option periods in the lease term when our failure to renew the lease would result in an economic disincentive, thereby making it reasonably certain that we will renew the lease. We recognize straight line rental expense over the life of the lease and any fair market value or Consumer Price Index rent escalations are recognized as variable lease expense in the period in which the obligation is incurred. In addition, we lease certain vehicles and equipment. Vehicle and equipment leases have lease terms ranging from one to seven years . In February 2016, the Financial Accounting Standards Board ("FASB") issued ASU 2016-02, Leases (Topic 842) which requires lessees to recognize assets and liabilities on the balance sheet for the rights and obligations created by all leases, both operating and financing (formerly referred to as capital leases under ASC 840). ASU 2016-02 requires certain qualitative and quantitative disclosures designed to give financial statement users information on the amount, timing, and uncertainty of cash flows arising from leases. We adopted ASU 2016-02 on January 1, 2019 on a modified retrospective basis under which we recognized and measured leases existing at, or entered into after, the beginning of the period of adoption. Therefore, we applied ASC 840 to all earlier comparative periods (prior to the adoption of ASU 2016-02), including disclosures, and recognized the effects of applying ASU 2016-02 as a cumulative-effect adjustment to retained earnings as of January 1, 2019, the effective date of the standard. As such, the comparative Condensed Consolidated Balance Sheet as of December 31, 2018 has not been restated to reflect the adoption of ASU 2016-02. Accordingly, the majority of the amount presented as deferred rent liabilities on our Consolidated Balance Sheet as of December 31, 2018 is now included in the calculation of operating lease right-of-use assets and any remaining amounts are now classified within other liability line items on our Condensed Consolidated Balance Sheet as of June 30, 2019. The transition guidance associated with ASU 2016-02 also permitted certain practical expedients. We elected the "package of 3" practical expedients permitted under the transition guidance which, among other things, allowed us to carryforward our historical lease classifications. We also adopted an accounting policy which provides that leases with an initial term of 12 months or less will not be included within the lease right-of-use assets and lease liabilities recognized on our Condensed Consolidated Balance Sheets after the adoption of ASU 2016-02. We will continue to recognize the lease payments for those leases with an initial term of 12 months or less in the Condensed Consolidated Statements of Operations on a straight-line basis over the lease term. The lease right-of-use assets and related lease liabilities are classified as either operating or financing. Lease right-of-use assets are calculated as the net present value of future payments plus any capitalized initial direct costs less any tenant improvements or lease incentives. Lease liabilities are calculated as the net present value of future payments. In calculating the present value of the lease payments, we will utilize the rate stated within the lease (in the limited circumstances when such rate is available) or, if no rate is explicitly stated, we have elected to utilize a rate that reflects our securitized incremental borrowing rate by geography for the lease term. In July 2018, the FASB issued ASU 2018-11, Leases - Targeted Improvements ("ASU 2018-11"). ASU 2018-11 provides a practical expedient which allows lessees to account for nonlease components (which include common area maintenance, taxes, and insurance) with the related lease component. Any variable nonlease components are not included within the lease right-of-use asset and lease liability on the Condensed Consolidated Balance Sheets, and instead, are reflected as an expense in the period incurred. We have elected to take this practical expedient upon adoption of ASU 2016-02. At January 1, 2019, we recognized the cumulative effect of initially applying ASU 2016-02 as an adjustment to the opening balance of (Distributions in excess of earnings) Earnings in excess of distributions, resulting in an increase of approximately $5,800 to stockholders' equity due to certain build to suit leases that were accounted for as financing leases under ASC 840, Leases , but are accounted for as operating leases under ASU 2016-02 at January 1, 2019.
Stock-Based Compensation	Stock-Based CompensationWe record stock-based compensation expense, utilizing the straight-line method, for the cost of stock options, restricted stock units ("RSUs"), performance units ("PUs") and shares of stock issued under our employee stock purchase plan (together, "Employee Stock-Based Awards"). For our Employee Stock-Based Awards made on or after February 20, 2019, we have included the following retirement provision: Upon an employee’s retirement on or after attaining age 58, if the sum of (i) the award recipient’s age at retirement and (ii) the award recipient’s years of service with the company totals at least 70, the award recipient is entitled to continued vesting of any outstanding Employee Stock-Based Awards which include the 2019 Retirement Criteria subsequent to their retirement, provided that, for awards granted in the year of retirement, their retirement occurs on or after July 1st (the “2019 Retirement Criteria”). Accordingly, (i) grants of Employee Stock-Based Awards to an employee who has met the 2019 Retirement Criteria on or before the date of grant, or will meet the Retirement Criteria before July 1 st of the year of the grant, will be expensed between the date of grant and July 1 st of the grant year and (ii) grants of Employee Stock-Based Awards to employees who will meet the 2019 Retirement Criteria during the award’s normal vesting period will be expensed between the date of grant and the date upon which the award recipient meets the 2019 Retirement Criteria. Stock options and RSUs granted to recipients who meet the 2019 Retirement Criteria will continue vesting on the original vesting schedule, and the stock options will remain exercisable up to three years after retirement, or the original expiration date of the stock options, if earlier. PUs granted to recipients who meet the 2019 Retirement Criteria will continue to vest and be delivered in accordance with the original vesting schedule of the applicable PU award and remain subject to the same performance conditions.
Income (Loss) Per Share-Basic and Diluted	Income (Loss) Per Share—Basic and Diluted Basic income (loss) per common share is calculated by dividing income (loss) by the weighted average number of common shares outstanding. The calculation of diluted income (loss) per share is consistent with that of basic income (loss) per share, but gives effect to all potential common shares (that is, securities such as stock options, RSUs or PUs) that were outstanding during the period, unless the effect is antidilutive.
Income Taxes	We provide for income taxes during interim periods based on our estimate of the effective tax rate for the year. Our estimate of the effective tax rates for the years ending December 31, 2019 and 2018 reflect the impact of the U.S. tax reform legislation, commonly referred to as the Tax Cuts and Jobs Act (the “Tax Reform Legislation”). See Note 7 to Notes to Consolidated Financial Statements included in our Annual Report for additional information regarding the impact the Tax Reform Legislation had on us. Discrete items and changes in our estimate of the annual effective tax rate are recorded in the period they occur. Our effective tax rate is subject to variability in the future due to, among other items: (1) changes in the mix of income between our qualified REIT subsidiaries ("QRSs") and our domestic taxable REIT subsidiaries ("TRSs"), as well as among the jurisdictions in which we operate; (2) tax law changes; (3) volatility in foreign exchange gains and losses; (4) the timing of the establishment and reversal of tax reserves; and (5) our ability to utilize net operating losses that we generate.
Fair Value Measurements	Fair Value Measurements Our financial assets or liabilities that are carried at fair value are required to be measured using inputs from the three levels of the fair value hierarchy. A financial asset or liability's classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. The three levels of the fair value hierarchy are as follows: Level 1—Inputs are unadjusted quoted prices in active markets for identical assets or liabilities that we have the ability to access at the measurement date. Level 2—Inputs include quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (i.e., interest rates, yield curves, etc.), and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs). Level 3—Unobservable inputs that reflect our assumptions about the assumptions that market participants would use in pricing the asset or liability.
New Accounting Pronouncements	New Accounting Pronouncements In August 2018, the FASB issued ASU No. 2018-15, Intangibles-Goodwill and Other-Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract (a consensus of the FASB Emerging Issues Task Force) ("ASU 2018-15"). ASU 2018-15 aligns the accounting for costs incurred to implement a cloud computing arrangement that is a service arrangement with the guidance on capitalizing costs associated with developing or obtaining internal-use software. We adopted ASU 2018-15 on January 1, 2019. ASU 2018-15 did not have a material impact on our consolidated financial statements. Subsequent to our conversion to a REIT, we have historically classified gains on sale of real estate, net of tax, as a separate line on our consolidated statements of operations and excluded such amounts from our reported operating income. We presented such amounts net of tax as these gains were presented below the provision (benefit) for income taxes on our consolidated statements of operations. Commencing with the first quarter of 2019, we now present gains on sale of real estate as a component of operating income in the line item (gain) loss on disposal/write-down of property, plant and equipment, net. See Note 2.j. for details of the (gain) loss on disposal/write-down of property, plant and equipment, net recognized during the three and six months ended June 30, 2019. Such amounts are presented gross of tax with any tax impact presented within provision (benefit) for income taxes. All prior periods will be conformed to this presentation. We did not recognize any gains on sale of real estate during the three and six months ended June 30, 2018. During the third and fourth quarter of 2018, we recognized a total of approximately $55,000

Summary of Significant Accoun_3

Summary of Significant Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2019
Accounting Policies [Abstract]
Schedule of changes in the carrying value of goodwill attributable to each reportable operating segment	The changes in the carrying value of goodwill attributable to each reportable operating segment for the six months ended June 30, 2019 are as follows: North American North American Western European Business Other International Business Global Data Center Business Corporate and Other Business Total Goodwill balance, net of accumulated amortization as of December 31, 2018 $ 2,251,795 $ 493,491 $ 381,806 $ 818,223 $ 425,956 $ 69,759 $ 4,441,030 Deductible goodwill acquired during the year 5,501 — — 2,758 — — 8,259 Non-deductible goodwill acquired during the year — — 5,011 4,387 — 1,904 11,302 Fair value and other adjustments(1) 55 — 959 2,842 258 (422 ) 3,692 Currency effects 7,704 2,093 (2,851 ) 1,907 193 95 9,141 Goodwill balance, net accumulated amortization as of June 30, 2019 $ 2,265,055 $ 495,584 $ 384,925 $ 830,117 $ 426,407 $ 71,336 $ 4,473,424 Accumulated Goodwill Impairment Balance as of December 31, 2018 $ 85,909 $ — $ 46,500 $ — $ — $ 3,011 $ 135,420 Accumulated Goodwill Impairment Balance as of June 30, 2019 $ 85,909 $ — $ 46,500 $ — $ — $ 3,011 $ 135,420 _______________________________________________________________________________ (1) Total fair value and other adjustments primarily include $3,755 in net adjustments related to property, plant and equipment, customer relationships and data center lease-based intangible assets and deferred income taxes and other liabilities offset by $63 of cash received related to certain acquisitions completed in 2018.
Components of amortizable intangible assets	The other finite-lived intangible assets as of June 30, 2019 and December 31, 2018 are as follows: June 30, 2019 December 31, 2018 Gross Carrying Accumulated Net Carrying Gross Carrying Accumulated Net Carrying Other finite-lived intangible assets (included in Other, a component of other assets, net) $ 19,960 $ (16,482 ) $ 3,478 $ 20,310 $ (14,798 ) $ 5,512 The gross carrying amount and accumulated amortization of our finite-lived intangible assets as of June 30, 2019 and December 31, 2018 are as follows: June 30, 2019 December 31, 2018 Gross Carrying Accumulated Net Carrying Gross Carrying Accumulated Net Carrying Assets: Customer relationship intangible assets $ 1,766,769 $ (511,672 ) $ 1,255,097 $ 1,718,919 $ (455,705 ) $ 1,263,214 Customer inducements 52,542 (29,091 ) 23,451 56,478 (34,181 ) 22,297 Data center lease-based intangible assets(1) 266,263 (77,786 ) 188,477 271,818 (50,807 ) 221,011 Third-party commissions asset(2) 31,391 (1,874 ) 29,517 30,071 (1,089 ) 28,982 $ 2,116,965 $ (620,423 ) $ 1,496,542 $ 2,077,286 $ (541,782 ) $ 1,535,504 Liabilities: Data center below-market leases $ 12,765 $ (2,954 ) $ 9,811 $ 12,318 $ (1,642 ) $ 10,676 _______________________________________________________________________________ (1) Includes data center in-place lease intangible assets, data center tenant relationship intangible assets and data center above-market in-place lease intangible assets. (2) Third-party commissions asset is included in Other, a component of Other assets, net in the accompanying Condensed Consolidated Balance Sheets as of June 30, 2019 and December 31, 2018. The third-party commissions asset is primarily comprised of additional payments associated with the execution of future customer contracts through the one-year anniversary of the acquisition of IODC, as described in Note 3.
Schedule of amortization expenses	Amortization expense associated with finite-lived intangible assets, revenue reduction associated with the amortization of customer inducements and net revenue reduction associated with the amortization of data center above-market leases and data center below-market leases for the three and six months ended June 30, 2019 and 2018 are as follows: Three Months Ended June 30, Six Months Ended 2019 2018 2019 2018 Amortization expense included in depreciation and amortization associated with: Customer relationship and customer inducement intangible assets $ 28,283 $ 28,813 $ 56,164 $ 57,619 Data center in-place leases and tenant relationships 11,372 7,563 23,981 18,401 Third-party commissions asset and other finite-lived intangible assets 2,184 1,659 2,941 2,844 Revenue reduction associated with amortization of: Customer inducements $ 2,598 $ 2,968 $ 5,338 $ 5,553 Data center above-market leases and data center below-market leases 935 1,293 1,840 2,372
Schedule of amortization expense associated with commissions asset and Intake Costs	The costs of the initial intake of customer records into physical storage ("Intake Costs") and capitalized commissions asset (collectively, "Contract Fulfillment Costs") as of June 30, 2019 and December 31, 2018 are as follows: June 30, 2019 December 31, 2018 Description Location in Balance Sheet Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Intake Costs asset Other (within Other Assets, Net) $ 34,915 $ (19,398 ) $ 15,517 $ 39,748 $ (24,504 ) $ 15,244 Capitalized commissions asset Other (within Other Assets, Net) 48,564 (17,895 ) 30,669 58,424 (34,637 ) 23,787 Amortization expense associated with the Intake Costs asset and capitalized commissions asset for the three and six months ended June 30, 2019 and 2018 are as follows: Three Months Ended June 30, Six Months Ended June 30, 2019 2018 2019 2018 Intake Costs asset $ 2,835 $ 2,891 $ 5,514 $ 5,621 Capitalized commissions asset 5,935 3,793 9,881 7,380
Schedule of deferred revenue liabilities	Deferred revenue liabilities are reflected as follows in our Condensed Consolidated Balance Sheets: Description Location in Balance Sheet June 30, 2019 December 31, 2018 Deferred revenue - Current Deferred revenue $ 268,779 $ 264,823 Deferred revenue - Long-term Other Long-term Liabilities 25,436 26,401
Operating and financing lease right-of-use assets and lease liabilities	Operating and financing lease right-of-use assets and lease liabilities as of June 30, 2019 and January 1, 2019 (date of adoption of ASU 2016-02) are as follows: Description Location in Balance Sheet June 30, 2019 January 1, 2019 Assets: Operating lease right-of-use assets(1) Operating lease right-of-use assets $ 1,793,807 $ 1,825,721 Financing lease right-of-use assets, net of accumulated depreciation(2) Property, plant and equipment, net 344,320 361,078 Total $ 2,138,127 $ 2,186,799 Liabilities: Current Operating lease liabilities Accrued expenses and other current liabilities $ 212,968 $ 209,911 Financing lease liabilities Current portion of long-term debt 50,116 50,437 Total current lease liabilities 263,084 260,348 Long-term Operating lease liabilities Long-term operating lease liabilities, net of current portion 1,655,477 1,685,771 Financing lease liabilities Long-term Debt, net of current portion 331,233 350,263 Total long-term lease liabilities 1,986,710 2,036,034 Total $ 2,249,794 $ 2,296,382 ______________________________________________________________ (1) At June 30, 2019, these assets are comprised of approximately 98% real estate related assets (which include land, buildings and racking) and 2% non-real estate related assets (which include warehouse equipment, vehicles, furniture and fixtures and computer hardware and software). (2) At June 30, 2019, these assets are comprised of approximately 62% real estate related assets and 38% non-real estate related assets.
Lease, cost	Supplemental cash flow information relating to our leases for the six months ended June 30, 2019 is as follows: Cash paid for amounts included in measurement of lease liabilities: Six Months Ended Operating cash flows used in operating leases $ 167,426 Financing cash flows used in financing leases $ 31,146 Non-cash items: Operating lease modifications and reassessments $ 14,024 New operating leases (including acquisitions) $ 87,482 New financing leases, modifications and reassessments $ 13,662 Weighted average remaining lease terms and discount rates as of June 30, 2019 are as follows: Remaining Lease Term: Operating leases 11.0 Years Financing leases 11.0 Years Discount Rate: Operating leases 7.1% Financing leases 5.6% The components of the lease expense for the three and six months ended June 30, 2019 are as follows: Description Location in Statement of Operations Three Months Ended Six Months Ended June 30, 2019 Operating lease cost(1) Cost of sales and Selling, general and administrative $ 113,392 $ 222,571 Financing lease cost: Depreciation of financing lease right-of-use assets Depreciation and amortization $ 14,942 $ 31,271 Interest expense for financing lease liabilities Interest expense, net 4,925 11,067 Total financing lease cost $ 19,867 $ 42,338 ______________________________________________________________ (1) Of the $113,392 incurred for the three months ended June 30, 2019, $110,441 is included within Cost of sales and $2,951 is included within Selling, general and administrative expenses. Of the $222,571 incurred for the six months ended June 30, 2019, $216,335 is included within Cost of sales and $6,236 is included within Selling, general and administrative expenses. Operating lease cost includes variable lease costs of $23,847 and $46,610 for the three and six months ended June 30, 2019, respectively.
Schedule of future minimum lease payments for capital leases	The estimated minimum future lease payments as of June 30, 2019, are as follows: Year Operating Leases(1) Sublease Income Financing Leases(1) 2019 (excluding the six months ended June 30, 2019) $ 171,378 $ (3,494 ) $ 40,635 2020 321,670 (5,728 ) 60,377 2021 295,696 (4,828 ) 54,766 2022 271,552 (4,462 ) 48,071 2023 246,252 (4,333 ) 40,351 Thereafter 1,482,286 (10,185 ) 296,260 Total minimum lease payments 2,788,834 $ (33,030 ) 540,460 Less amounts representing interest or imputed interest (920,389 ) (159,111 ) Present value of lease obligations $ 1,868,445 $ 381,349 The estimated minimum future lease payments as of December 31, 2018 are as follows: Year Operating Leases(1) Sublease Income Financing Leases(1)(2) 2019 $ 323,454 $ (7,525 ) $ 80,513 2020 293,276 (7,200 ) 71,335 2021 267,379 (7,063 ) 61,269 2022 246,128 (6,694 ) 52,832 2023 221,808 (6,409 ) 44,722 Thereafter 1,287,807 (6,279 ) 377,750 Total minimum lease payments $ 2,639,852 $ (41,170 ) 688,421 Less amounts representing interest (241,248 ) Present value of lease obligations $ 447,173 _______________________________________________________________________________ (1) Estimated minimum future lease payments exclude variable common area maintenance charges, insurance and taxes. Differences in estimated lease payments between June 30, 2019 and December 31, 2018 are primarily related to adjustments to account for certain build to suit leases that were accounted for as financing obligations under ASC 840 but are accounted for as operating leases under ASU 2016-02 and foreign currency exchange rate impacts. (2) Includes capital lease and financing obligations associated with build to suit lease transactions at December 31, 2018.
Finance lease, liability, maturity	The estimated minimum future lease payments as of June 30, 2019, are as follows: Year Operating Leases(1) Sublease Income Financing Leases(1) 2019 (excluding the six months ended June 30, 2019) $ 171,378 $ (3,494 ) $ 40,635 2020 321,670 (5,728 ) 60,377 2021 295,696 (4,828 ) 54,766 2022 271,552 (4,462 ) 48,071 2023 246,252 (4,333 ) 40,351 Thereafter 1,482,286 (10,185 ) 296,260 Total minimum lease payments 2,788,834 $ (33,030 ) 540,460 Less amounts representing interest or imputed interest (920,389 ) (159,111 ) Present value of lease obligations $ 1,868,445 $ 381,349 The estimated minimum future lease payments as of December 31, 2018 are as follows: Year Operating Leases(1) Sublease Income Financing Leases(1)(2) 2019 $ 323,454 $ (7,525 ) $ 80,513 2020 293,276 (7,200 ) 71,335 2021 267,379 (7,063 ) 61,269 2022 246,128 (6,694 ) 52,832 2023 221,808 (6,409 ) 44,722 Thereafter 1,287,807 (6,279 ) 377,750 Total minimum lease payments $ 2,639,852 $ (41,170 ) 688,421 Less amounts representing interest (241,248 ) Present value of lease obligations $ 447,173 _______________________________________________________________________________ (1) Estimated minimum future lease payments exclude variable common area maintenance charges, insurance and taxes. Differences in estimated lease payments between June 30, 2019 and December 31, 2018 are primarily related to adjustments to account for certain build to suit leases that were accounted for as financing obligations under ASC 840 but are accounted for as operating leases under ASU 2016-02 and foreign currency exchange rate impacts. (2) Includes capital lease and financing obligations associated with build to suit lease transactions at December 31, 2018.
Lessee, operating lease, liability, maturity	The estimated minimum future lease payments as of June 30, 2019, are as follows: Year Operating Leases(1) Sublease Income Financing Leases(1) 2019 (excluding the six months ended June 30, 2019) $ 171,378 $ (3,494 ) $ 40,635 2020 321,670 (5,728 ) 60,377 2021 295,696 (4,828 ) 54,766 2022 271,552 (4,462 ) 48,071 2023 246,252 (4,333 ) 40,351 Thereafter 1,482,286 (10,185 ) 296,260 Total minimum lease payments 2,788,834 $ (33,030 ) 540,460 Less amounts representing interest or imputed interest (920,389 ) (159,111 ) Present value of lease obligations $ 1,868,445 $ 381,349 The estimated minimum future lease payments as of December 31, 2018 are as follows: Year Operating Leases(1) Sublease Income Financing Leases(1)(2) 2019 $ 323,454 $ (7,525 ) $ 80,513 2020 293,276 (7,200 ) 71,335 2021 267,379 (7,063 ) 61,269 2022 246,128 (6,694 ) 52,832 2023 221,808 (6,409 ) 44,722 Thereafter 1,287,807 (6,279 ) 377,750 Total minimum lease payments $ 2,639,852 $ (41,170 ) 688,421 Less amounts representing interest (241,248 ) Present value of lease obligations $ 447,173 _______________________________________________________________________________ (1) Estimated minimum future lease payments exclude variable common area maintenance charges, insurance and taxes. Differences in estimated lease payments between June 30, 2019 and December 31, 2018 are primarily related to adjustments to account for certain build to suit leases that were accounted for as financing obligations under ASC 840 but are accounted for as operating leases under ASU 2016-02 and foreign currency exchange rate impacts. (2) Includes capital lease and financing obligations associated with build to suit lease transactions at December 31, 2018.
Lessor, operating lease, maturity	The future minimum lease payments we expect to receive under non-cancellable data center operating leases, for which we are the lessor, excluding month to month leases, for the next five years are as follows: Future minimum lease payments 2019 (excluding the six months ended June 30, 2019) $ 103,016 2020 155,581 2021 111,945 2022 79,763 2023 61,684
Summary of stock option activity	A summary of stock option activity for the six months ended June 30, 2019 is as follows: Stock Options Outstanding at December 31, 2018 4,271,834 Granted 920,706 Exercised (194,480 ) Forfeited (12,525 ) Expired (15,647 ) Outstanding at June 30, 2019 4,969,888 Options exercisable at June 30, 2019 3,160,175 Options expected to vest 1,704,441
Summary of restricted stock and RSU activity	The fair value of RSUs vested during the three and six months ended June 30, 2019 and 2018 is as follows: Three Months Ended Six Months Ended 2019 2018 2019 2018 Fair value of RSUs vested $ 2,375 $ 676 $ 17,710 $ 16,006 A summary of RSU activity for the six months ended June 30, 2019 is as follows: RSUs Non-vested at December 31, 2018 1,196,566 Granted 731,801 Vested (527,239 ) Forfeited (55,070 ) Non-vested at June 30, 2019 1,346,058
Schedule of performance units	The fair value of earned PUs that vested during the three and six months ended June 30, 2019 and 2018 is as follows: Three Months Ended Six Months Ended 2019 2018 2019 2018 Fair value of earned PUs that vested $ — $ — $ 6,503 $ 3,033
Summary of Performance Unit (PU) activity	A summary of PU activity for the six months ended June 30, 2019 is as follows: Original PU Adjustment(1) Total Non-vested at December 31, 2018 967,049 (299,948 ) 667,101 Granted 380,856 — 380,856 Vested (169,523 ) — (169,523 ) Forfeited/Performance or Market Conditions Not Achieved (11,093 ) (14,850 ) (25,943 ) Non-vested at June 30, 2019 1,167,289 (314,798 ) 852,491 _______________________________________________________________________________ (1) Represents an increase or decrease in the number of original PUs awarded based on either the final performance criteria or market condition achievement at the end of the performance period of such PUs or a change in estimated awards based on the forecasted performance against the predefined targets.
Calculation of basic and diluted net income (loss) per share attributable to the entity	The calculation of basic and diluted income (loss) per share for the three and six months ended June 30, 2019 and 2018 are as follows: Three Months Ended Six Months Ended 2019 2018 2019 2018 Income (loss) from continuing operations $ 92,347 $ 92,263 $ 122,823 $ 131,652 Less: Net income (loss) attributable to noncontrolling interests 34 142 925 610 Income (loss) from continuing operations (utilized in numerator of Earnings Per Share calculation) $ 92,313 $ 92,121 $ 121,898 $ 131,042 Income (loss) from discontinued operations, net of tax $ 128 $ (360 ) $ 104 $ (822 ) Net income (loss) attributable to Iron Mountain Incorporated $ 92,441 $ 91,761 $ 122,002 $ 130,220 Weighted-average shares—basic 286,925,000 285,984,000 286,727,000 285,622,000 Effect of dilutive potential stock options 148,629 237,708 190,016 243,636 Effect of dilutive potential RSUs and PUs 407,659 347,543 570,040 415,929 Weighted-average shares—diluted 287,481,288 286,569,251 287,487,056 286,281,565 Earnings (losses) per share—basic: Income (loss) from continuing operations $ 0.32 $ 0.32 $ 0.43 $ 0.46 Income (loss) from discontinued operations, net of tax — — — — Net income (loss) attributable to Iron Mountain Incorporated(1) $ 0.32 $ 0.32 $ 0.43 $ 0.46 Earnings (losses) per share—diluted: Income (loss) from continuing operations $ 0.32 $ 0.32 $ 0.42 $ 0.46 Income (loss) from discontinued operations, net of tax — — — — Net income (loss) attributable to Iron Mountain Incorporated(1) $ 0.32 $ 0.32 $ 0.42 $ 0.45 Antidilutive stock options, RSUs and PUs, excluded from the calculation 5,004,112 3,272,502 4,494,637 3,257,322 _______________________________________________________________________________ (1) Columns may not foot due to rounding.
Schedule of effective income tax rate reconciliation	Our effective tax rates for the three and six months ended June 30, 2019 and 2018 are as follows: Three Months Ended Six Months Ended 2019(1) 2018(1) 2019(1) 2018(2) Effective Tax Rate 10.3 % 22.0 % 14.7 % 16.5 % _______________________________________________________________________________ (1) The primary reconciling items between the federal statutory tax rate of 21.0% and our overall effective tax rate for the three and six months ended June 30, 2019 and for the three months ended June 30, 2018 were the benefit derived from the dividends paid deduction and the impact of differences in the tax rates at which our foreign earnings are subject, including foreign exchange gains and losses in different jurisdictions with different tax rates. (2) The primary reconciling items between the federal statutory tax rate of 21.0% and our overall effective tax rate for the six months ended June 30, 2018 were the benefit derived from the dividends paid deduction, a discrete tax benefit of approximately $14,000 associated with the resolution of a tax matter and the impact of differences in the tax rates at which our foreign earnings are subject, including foreign exchange gains and losses in different jurisdictions with different tax rates.
Assets and liabilities carried at fair value measured on a recurring basis	The assets and liabilities carried at fair value measured on a recurring basis as of June 30, 2019 and December 31, 2018 , respectively, are as follows: Fair Value Measurements at Description Total Carrying Quoted prices Significant other Significant Money Market Funds(1) $ 4,418 $ — $ 4,418 $ — Trading Securities 10,366 9,744 (2) 622 (3) — Interest Rate Swap Agreements Liabilities(5) 8,578 — 8,578 — Fair Value Measurements at Description Total Carrying Value at December 31, 2018 Quoted prices in active markets (Level 1) Significant other observable inputs (Level 2) Significant unobservable inputs (Level 3) Time Deposits(1) $ 956 $ — $ 956 $ — Trading Securities 10,753 10,248 (2) 505 (3) — Derivative Assets(4) 93 — 93 — Interest Rate Swap Agreements Liabilities(5) 973 — 973 — _______________________________________________________________________________ (1) Money market funds and time deposits are measured based on quoted prices for similar assets and/or subsequent transactions. (2) Certain trading securities are measured at fair value using quoted market prices. (3) Certain trading securities are measured based on inputs that are observable other than quoted market prices. (4) Derivative assets and liabilities relate to short-term (six months or less) foreign currency contracts that we have entered into to hedge certain of our foreign exchange intercompany exposures. We calculate the value of such forward contracts by adjusting the spot rate utilized at the balance sheet date for translation purposes by an estimate of the forward points observed in active markets. As of June 30, 2019, we had no outstanding forward contracts. As of December 31, 2018, we had outstanding forward contracts to purchase 29,000 Euros and sell $33,374 United States dollars. We have not designated any of the forward contracts we have entered into as hedges. (5) We have entered into interest rate swap agreements to limit our exposure to changes in interest rates on a portion of our floating rate indebtedness. As of June 30, 2019 and December 31, 2018 , we had $350,000 in notional value of interest rate swap agreements outstanding, which expire in March 2022. Under the interest rate swap agreements, we receive variable rate interest payments associated with the notional amount of each interest rate swap, based upon one-month LIBOR, in exchange for the payment of fixed interest rate payments (at the fixed rate interest specified in the interest rate swap agreements). We have designated these interest rate swaps as cash flow hedges. Unrealized gains are recognized as assets while unrealized losses are recognized as liabilities. The fair value of the interest rate swaps are estimated using industry standard valuation models using market-based observable inputs, including interest rate curves.
Schedule of changes in accumulated other comprehensive items, net	The changes in accumulated other comprehensive items, net for the three and six months ended June 30, 2019, respectively, are as follows: Three Months Ended June 30, 2019 Six Months Ended June 30, 2019 Foreign Fair Value Adjustments for Interest Rate Swap Agreements Total Foreign Fair Value Adjustments for Interest Rate Swap Agreements Total Beginning of Period $ (247,313 ) $ (3,647 ) $ (250,960 ) $ (264,691 ) $ (973 ) $ (265,664 ) Other comprehensive (loss) income: Foreign currency translation adjustment(1) (5,930 ) — (5,930 ) 11,448 — 11,448 Fair value adjustments for interest rate swap agreements — (4,931 ) (4,931 ) — (7,605 ) (7,605 ) Total other comprehensive (loss) income (5,930 ) (4,931 ) (10,861 ) 11,448 (7,605 ) 3,843 End of Period $ (253,243 ) $ (8,578 ) $ (261,821 ) $ (253,243 ) $ (8,578 ) $ (261,821 ) _____________________________________________________________ (1) This amount includes foreign exchange losses (gains) of $4,280 and $(1,861) for the three and six months ended June 30, 2019, respectively, related to the change in fair value of the portion of our Euro Notes (as defined and discussed more fully in Note 4) designated as a hedge of net investment of certain of our Euro denominated subsidiaries. For the six months ended June 30, 2019, we designated, on average, 274,161 Euros of our Euro Notes as a hedge of net investment of certain of our Euro denominated subsidiaries. As of June 30, 2019, cumulative net gains of $16,119 net of tax, are recorded in accumulated other comprehensive items, net associated with this net investment hedge. The changes in accumulated other comprehensive items, net for the three and six months ended June 30, 2018, respectively, are as follows: Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 Foreign Fair Value Adjustments for Interest Rate Swap Agreements Total Foreign Fair Value Adjustments for Interest Rate Swap Agreements Total Beginning of Period $ (73,897 ) $ (185 ) $ (74,082 ) $ (103,989 ) $ — $ (103,989 ) Other comprehensive (loss) income: Foreign currency translation adjustment(1) (135,756 ) — (135,756 ) (105,664 ) — (105,664 ) Fair value adjustments for interest rate swap agreements — 2,388 2,388 — 2,203 2,203 Total other comprehensive (loss) income (135,756 ) 2,388 (133,368 ) (105,664 ) 2,203 (103,461 ) End of Period $ (209,653 ) $ 2,203 $ (207,450 ) $ (209,653 ) $ 2,203 $ (207,450 ) ______________________________________________________________ (1) This amount includes foreign exchange gains of $10,257 and $4,622 for the three and six months ended June 30, 2018, respectively, related to the change in fair value of the portion of our Euro Notes designated as a hedge of net investment of certain of our Euro denominated subsidiaries. For the six months ended June 30, 2018, we designated, on average, 179,881
Other expense (income), net	Other (income) expense, net for the three and six months ended June 30, 2019 and 2018 consists of the following: Three Months Ended Six Months Ended 2019 2018 2019 2018 Foreign currency transaction (gains) losses, net $ (19,331 ) $ (18,624 ) $ (1,634 ) $ 3,161 Other, net 4,139 (432 ) 1,652 (2,066 ) $ (15,192 ) $ (19,056 ) $ 18 $ 1,095
Schedule of immaterial restatement	The following table sets forth the effect of the immaterial restatement to certain line items of our Condensed Consolidated Statements of Operations for the three and six months ended June 30, 2018: Three Months Ended June 30, 2018 Six Months Ended June 30, 2018 Selling, general and administrative $ 1,899 $ 9,339 Total Operating Expenses $ 1,899 $ 9,339 Operating Income (Loss) $ (1,899 ) $ (9,339 ) Interest Expense, Net $ 89 $ 165 Income (Loss) from Continuing Operations Before Provision (Benefit) for Income Taxes $ (1,988 ) $ (9,504 ) Provision (Benefit) for Income Taxes $ (348 ) $ (1,639 ) Income (Loss) from Continuing Operations $ (1,640 ) $ (7,865 ) Net Income (Loss) $ (1,640 ) $ (7,865 ) Net Income (Loss) Attributable to Iron Mountain Incorporated $ (1,640 ) $ (7,865 ) Earnings (Losses) per Share - Basic: Income (Loss) from Continuing Operations $ (0.01 ) $ (0.03 ) Net Income (Loss) from Continuing Operations Attributable to Iron Mountain $ (0.01 ) $ (0.03 ) Earnings (Losses) per Share - Diluted: Income (Loss) from Continuing Operations $ (0.01 ) $ (0.03 ) Net Income (Loss) from Continuing Operations Attributable to Iron Mountain $ (0.01 ) $ (0.03 ) The following table sets forth the effect of the immaterial restatement to certain line items of our Condensed Consolidated Balance Sheet as of December 31, 2018: December 31, 2018 Total Other Assets, Net $ 4,971 Total Assets $ 4,971 Accrued expenses and other current liabilities $ 28,097 Total Current Liabilities $ 28,097 (Distribution in excess of earnings) Earnings in excess of distributions $ (23,126 ) Total Iron Mountain Incorporated Stockholders' Equity $ (23,126 )

Acquisitions (Tables)

Acquisitions (Tables)	6 Months Ended
	Jun. 30, 2019
Business Combinations [Abstract]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed	A summary of the cumulative consideration paid and the preliminary allocation of the purchase price paid for all of our 2019 acquisitions through June 30, 2019 is as follows: Six Months Ended Cash Paid (gross of cash acquired)(1) $ 39,072 Purchase Price Holdbacks and Other 2,394 Total Consideration 41,466 Fair Value of Identifiable Assets Acquired: Cash 2,285 Accounts Receivable, Prepaid Expenses and Other Assets 3,164 Property, Plant and Equipment(2) 4,538 Customer Relationship Intangible Assets 15,670 Operating Lease Right-of-Use Assets 13,256 Accounts Payable, Accrued Expenses and Other Liabilities (2,124 ) Operating Lease Liabilities (13,256 ) Deferred Income Taxes (1,628 ) Total Fair Value of Identifiable Net Assets Acquired 21,905 Goodwill Initially Recorded(3) $ 19,561 _______________________________________________________________________________ (1) Included in cash paid for acquisitions in the Condensed Consolidated Statement of Cash Flows for the six months ended June 30, 2019 is net cash acquired of $2,285 and contingent and other payments, net of $7,864 related to acquisitions made in previous years. (2) Consists primarily of leasehold improvements, racking structures and warehouse equipment. These assets are depreciated using the straight-line method with the useful lives as noted in Note 2.f. to Notes to Consolidated Financial Statements included in our Annual Report. (3) The goodwill associated with acquisitions is primarily attributable to the assembled workforce, expanded market opportunities and costs and other operating synergies anticipated upon the integration of the operations of us and the acquired businesses.
Business Acquisition, Pro Forma Information	The unaudited consolidated pro forma financial information (the "Pro Forma Financial Information") below summarizes the combined results of us and IODC on a pro forma basis as if the IODC Transaction had occurred on January 1, 2017. The Pro Forma Financial Information is presented for informational purposes and is not necessarily indicative of the results of operations that would have been achieved if the acquisition had taken place on January 1, 2017. The Pro Forma Financial Information, for the period presented, includes purchase accounting adjustments (including amortization expenses from acquired intangible assets and depreciation of acquired property, plant and equipment). We and IODC collectively incurred $28,064 of operating expenditures to complete the IODC Transaction (including advisory and professional fees). These operating expenditures have been reflected within the results of operations in the Pro Forma Financial Information as if they were incurred on January 1, 2017. Three Months Ended June 30, 2018 Six Months Ended Total Revenues $ 1,060,823 $ 2,106,771 Income from Continuing Operations $ 92,263 $ 141,604 Per Share Income from Continuing Operations - Basic $ 0.32 $ 0.49 Per Share Income from Continuing Operations - Diluted $ 0.32 $ 0.49

Debt (Tables)

Debt (Tables)	6 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
Schedule of Carrying Amount and Fair Value of Long-Term Debt Instruments	Long-term debt is as follows: June 30, 2019 December 31, 2018 Debt (inclusive of discount) Unamortized Deferred Financing Costs Carrying Amount Fair Debt (inclusive of discount) Unamortized Deferred Financing Costs Carrying Amount Fair Revolving Credit Facility(1) $ 1,181,376 $ (12,548 ) $ 1,168,828 $ 1,181,376 $ 793,832 $ (14,117 ) $ 779,715 $ 793,832 Term Loan A(1) 234,375 — 234,375 234,375 240,625 — 240,625 240,625 Term Loan B(2) 689,782 (8,118 ) 681,664 668,784 693,169 (8,742 ) 684,427 660,013 Australian Dollar Term Loan (the "AUD Term Loan")(3) 230,048 (2,691 ) 227,357 231,506 233,955 (3,084 ) 230,871 235,645 UK Bilateral Revolving Credit Facility ("UK Bilateral Facility")(4) 177,762 (2,030 ) 175,732 177,762 178,299 (2,357 ) 175,942 178,299 4 3 / 8 % Senior Notes due 2021 (the "4 3 / 8 % Notes")(5) 500,000 (3,295 ) 496,705 505,000 500,000 (4,155 ) 495,845 488,750 6% Senior Notes due 2023 (the "6% Notes due 2023")(5) 600,000 (4,576 ) 595,424 612,000 600,000 (5,126 ) 594,874 606,000 5 3 / 8 % CAD Senior Notes due 2023 (the "CAD Notes") 190,972 (2,335 ) 188,637 192,882 183,403 (2,506 ) 180,897 186,154 5 3 / 4 % Senior Subordinated Notes due 2024 (the "5 3 / 4 % Notes")(5) 1,000,000 (7,096 ) 992,904 1,010,000 1,000,000 (7,782 ) 992,218 940,000 3% Euro Senior Notes due 2025 (the "Euro Notes")(5) 341,128 (3,781 ) 337,347 351,113 343,347 (4,098 ) 339,249 321,029 3 7 / 8 % GBP Senior Notes due 2025 (the "GBP Notes") 507,891 (6,074 ) 501,817 502,192 509,425 (6,573 ) 502,852 453,811 5 3 / 8 % Senior Notes due 2026 (the "5 3 / 8 % Notes") 250,000 (2,971 ) 247,029 252,500 250,000 (3,185 ) 246,815 224,375 4 7 / 8 % Senior Notes due 2027 (the "4 7 / 8 % Notes")(5) 1,000,000 (11,731 ) 988,269 990,000 1,000,000 (12,442 ) 987,558 855,000 5 1 / 4 % Senior Notes due 2028 (the "5 1 / 4 % Notes")(5) 825,000 (10,333 ) 814,667 825,000 825,000 (10,923 ) 814,077 713,625 Real Estate Mortgages, Financing Lease Liabilities and Other 559,622 (425 ) 559,197 559,622 606,702 (171 ) 606,531 606,702 Accounts Receivable Securitization Program(6) 254,962 (149 ) 254,813 254,962 221,673 (218 ) 221,455 221,673 Mortgage Securitization Program(7) 50,000 (1,055 ) 48,945 50,000 50,000 (1,128 ) 48,872 50,000 Total Long-term Debt 8,592,918 (79,208 ) 8,513,710 8,229,430 (86,607 ) 8,142,823 Less Current Portion (123,527 ) — (123,527 ) (126,406 ) — (126,406 ) Long-term Debt, Net of Current Portion $ 8,469,391 $ (79,208 ) $ 8,390,183 $ 8,103,024 $ (86,607 ) $ 8,016,417 ______________________________________________________________ (1) Collectively, the credit agreement ("Credit Agreement"). The Credit Agreement consists of a revolving credit facility (the "Revolving Credit Facility") and a term loan (the "Term Loan A"). The Credit Agreement is scheduled to mature on June 3, 2023. Of the $1,181,376 of outstanding borrowings under the Revolving Credit Facility as of June 30, 2019, 1,028,900 was denominated in United States dollars, 76,800 was denominated in Canadian dollars and 82,500 was denominated in Euros. In addition, we also had various outstanding letters of credit totaling $35,250 . The remaining amount available for borrowing under the Revolving Credit Facility as of June 30, 2019 was $533,374 (which amount represents the maximum availability as of such date). The average interest rate in effect under the Credit Agreement was 4.0% as of June 30, 2019 . The average interest rate in effect under the Revolving Credit Facility as of June 30, 2019 was 4.0% and the interest rate in effect under Term Loan A as of June 30, 2019 was 4.2% . (2) In connection with the 2018 First Amendment (as defined in Note 5 to Notes to Consolidated Financial Statements included in our Annual Report), Iron Mountain Information Management, LLC ("IMIM") entered into an incremental term loan activation notice (the "Activation Notice") with certain lenders pursuant to which the lenders party to the Activation Notice agreed to provide commitments to fund an incremental term loan B in the amount of $700,000 (the "Term Loan B"). On March 26, 2018, IMIM borrowed the full amount of the Term Loan B. The Term Loan B is scheduled to mature on January 2, 2026. The interest rate in effect as of June 30, 2019 was 4.2% . The amount of debt for the Term Loan B reflects an unamortized original issue discount of $1,468 and $1,581 as of June 30, 2019 and December 31, 2018, respectively. (3) The interest rate in effect as of June 30, 2019 was 5.1% . We had 329,688 Australian dollars outstanding on the AUD Term Loan as of June 30, 2019. The amount of debt for the AUD Term Loan reflects an unamortized original issue discount of $1,458 and $1,690 as of June 30, 2019 and December 31, 2018, respectively. (4) The interest rate in effect as of June 30, 2019 was 3.1% . (5) Collectively, the "Parent Notes". (6) The interest rate in effect as of June 30, 2019 was 3.4% . (7) The interest rate in effect as of June 30, 2019 was 3.5% .
Schedule of Net Cash Position in Cash Pool Agreements	The approximate amount of the net cash position for our QRS Cash Pool and the TRS Cash Pool and the approximate amount of the gross position and outstanding debit balances for each of these pools as of June 30, 2019 and December 31, 2018 are as follows: June 30, 2019 December 31, 2018 Gross Cash Position Outstanding Debit Balances Net Cash Position Gross Cash Position Outstanding Debit Balances Net Cash Position QRS Cash Pool $ 308,200 $ (306,500 ) $ 1,700 $ 300,800 $ (298,800 ) $ 2,000 TRS Cash Pool 295,500 (292,700 ) 2,800 281,500 (279,300 ) 2,200
Schedule of Leverage and Fixed Charge Ratios	Our leverage and fixed charge coverage ratios under the Credit Agreement as of June 30, 2019 and December 31, 2018, as well as our leverage ratio under our indentures as of June 30, 2019 and December 31, 2018 are as follows: June 30, 2019 December 31, 2018 Maximum/Minimum Allowable Net total lease adjusted leverage ratio 5.8 5.6 Maximum allowable of 6.5 Net secured debt lease adjusted leverage ratio 2.8 2.6 Maximum allowable of 4.0 Bond leverage ratio (not lease adjusted) 6.1 5.8 Maximum allowable of 6.5-7.0(1) Fixed charge coverage ratio 2.2 2.2 Minimum allowable of 1.5 ______________________________________________________________ (1) The maximum allowable leverage ratio under our indentures for the 4 7 / 8 % Notes, the GBP Notes and the 5 1 / 4 % Notes is 7.0 , while the maximum allowable leverage ratio under the indentures pertaining to our remaining senior and senior subordinated notes is 6.5 . In certain instances as provided in our indentures, we have the ability to incur additional indebtedness that would result in our bond leverage ratio exceeding the maximum allowable ratio under our indentures and still remain in compliance with the covenant.

Selected Consolidated Financi_2

Selected Consolidated Financial Statements of Parent, Guarantors and Non-Guarantors (Tables)	6 Months Ended
	Jun. 30, 2019
Selected Consolidated Financial Statements of Parent, Guarantors, Canada Company and Non-Guarantors
Schedule of selected consolidated Balance sheet statements of Parent, Guarantors, Canada Company and Non-Guarantors	CONDENSED CONSOLIDATED BALANCE SHEETS June 30, 2019 Parent Guarantors Non- Eliminations Consolidated Assets Current Assets: Cash and cash equivalents(1) $ 6 $ 124,553 $ 106,923 $ (69,486 ) $ 161,996 Accounts receivable — 65,357 786,973 — 852,330 Intercompany receivable — 1,184,345 — (1,184,345 ) — Prepaid expenses and other — 87,505 113,301 (29 ) 200,777 Total Current Assets 6 1,461,760 1,007,197 (1,253,860 ) 1,215,103 Property, Plant and Equipment, Net 145 3,013,538 1,544,876 — 4,558,559 Other Assets, Net: Long-term notes receivable from affiliates and intercompany receivable 5,072,926 — — (5,072,926 ) — Investment in subsidiaries 1,982,052 1,073,877 — (3,055,929 ) — Goodwill — 2,857,968 1,615,456 — 4,473,424 Operating lease right-of-use assets — 921,540 872,267 — 1,793,807 Other 2 965,060 715,027 — 1,680,089 Total Other Assets, Net 7,054,980 5,818,445 3,202,750 (8,128,855 ) 7,947,320 Total Assets $ 7,055,131 $ 10,293,743 $ 5,754,823 $ (9,382,715 ) $ 13,720,982 Liabilities and Equity Intercompany Payable $ 892,894 $ — $ 291,451 $ (1,184,345 ) $ — Debit Balances Under Cash Pools — — 69,486 (69,486 ) — Current Portion of Long-Term Debt — 54,848 68,708 (29 ) 123,527 Total Other Current Liabilities (includes current portion of operating lease liabilities) 270,521 679,750 542,989 — 1,493,260 Long-Term Debt, Net of Current Portion 4,225,317 2,265,699 1,899,167 — 8,390,183 Long-Term Operating Lease Liabilities, Net of Current Portion — 857,375 798,102 — 1,655,477 Long-Term Notes Payable to Affiliates and Intercompany Payable — 5,072,926 — (5,072,926 ) — Other Long-term Liabilities 8,578 51,721 266,142 — 326,441 Commitments and Contingencies (See Note 7) Redeemable Noncontrolling Interests — — 73,113 — 73,113 Total Iron Mountain Incorporated Stockholders' Equity 1,657,821 1,311,424 1,744,505 (3,055,929 ) 1,657,821 Noncontrolling Interests — — 1,160 — 1,160 Total Equity 1,657,821 1,311,424 1,745,665 (3,055,929 ) 1,658,981 Total Liabilities and Equity $ 7,055,131 $ 10,293,743 $ 5,754,823 $ (9,382,715 ) $ 13,720,982 ______________________________________________________________ (1) Included within Cash and Cash Equivalents at June 30, 2019 is approximately $74,000 and $0 of cash on deposit associated with our Cash Pools for the Guarantors and Non-Guarantors, respectively. CONDENSED CONSOLIDATED BALANCE SHEETS (Continued) December 31, 2018 Parent Guarantors Non- Eliminations Consolidated Assets Current Assets: Cash and cash equivalents(1) $ 132 $ 61,650 $ 169,318 $ (65,615 ) $ 165,485 Accounts receivable — 47,900 798,989 — 846,889 Intercompany receivable — 818,463 — (818,463 ) — Prepaid expenses and other 93 108,879 86,797 (29 ) 195,740 Total Current Assets 225 1,036,892 1,055,104 (884,107 ) 1,208,114 Property, Plant and Equipment, Net 190 3,002,104 1,487,263 — 4,489,557 Other Assets, Net: Long-term notes receivable from affiliates and intercompany receivable 4,954,686 — — (4,954,686 ) — Investment in subsidiaries 1,862,048 983,018 — (2,845,066 ) — Goodwill — 2,858,539 1,582,491 — 4,441,030 Other — 979,483 739,034 — 1,718,517 Total Other Assets, Net 6,816,734 4,821,040 2,321,525 (7,799,752 ) 6,159,547 Total Assets $ 6,817,149 $ 8,860,036 $ 4,863,892 $ (8,683,859 ) $ 11,857,218 Liabilities and Equity Intercompany Payable $ 462,927 $ — $ 355,536 $ (818,463 ) $ — Debit Balances Under Cash Pools — 10,612 55,003 (65,615 ) — Current Portion of Long-Term Debt — 63,703 62,732 (29 ) 126,406 Total Other Current Liabilities 268,373 616,826 479,170 — 1,364,369 Long-Term Debt, Net of Current Portion 4,223,822 1,877,649 1,914,946 — 8,016,417 Long-Term Notes Payable to Affiliates and Intercompany Payable — 4,954,686 — (4,954,686 ) — Other Long-term Liabilities 973 115,994 300,064 — 417,031 Commitments and Contingencies (See Note 7) Redeemable Noncontrolling Interests — — 70,532 — 70,532 Total Iron Mountain Incorporated Stockholders' Equity 1,861,054 1,220,566 1,624,500 (2,845,066 ) 1,861,054 Noncontrolling Interests — — 1,409 — 1,409 Total Equity 1,861,054 1,220,566 1,625,909 (2,845,066 ) 1,862,463 Total Liabilities and Equity $ 6,817,149 $ 8,860,036 $ 4,863,892 $ (8,683,859 ) $ 11,857,218 ______________________________________________________________ (1) Included within Cash and Cash Equivalents at December 31, 2018 is approximately $57,200 and $12,700 of cash on deposit associated with our Cash Pools for the Guarantors and Non-Guarantors, respectively.
Schedule of selected consolidated Income statements of Parent, Guarantors, Canada Company and Non-Guarantors	CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) Three Months Ended June 30, 2019 Parent Guarantors Non- Eliminations Consolidated Revenues: Storage rental $ — $ 411,159 $ 258,129 $ — $ 669,288 Service — 246,090 151,529 — 397,619 Intercompany revenues — 1,158 4,540 (5,698 ) — Total Revenues — 658,407 414,198 (5,698 ) 1,066,907 Operating Expenses: Cost of sales (excluding depreciation and amortization) — 260,675 204,427 — 465,102 Intercompany — 4,540 1,158 (5,698 ) — Selling, general and administrative 62 173,443 79,259 — 252,764 Depreciation and amortization 22 104,594 59,715 — 164,331 Loss (Gain) on disposal/write-down of property, plant and equipment, net — 26,786 (35,191 ) — (8,405 ) Total Operating Expenses 84 570,038 309,368 (5,698 ) 873,792 Operating (Loss) Income (84 ) 88,369 104,830 — 193,115 Interest Expense (Income), Net(1) 49,601 8,640 47,073 — 105,314 Other Expense (Income), Net 359 4,487 (20,038 ) — (15,192 ) (Loss) Income from Continuing Operations Before Provision (Benefit) for Income Taxes (50,044 ) 75,242 77,795 — 102,993 Provision (Benefit) for Income Taxes — 1,153 9,493 — 10,646 Equity in the (Earnings) Losses of Subsidiaries, Net of Tax (142,485 ) (69,710 ) — 212,195 — Income (Loss) from Continuing Operations 92,441 143,799 68,302 (212,195 ) 92,347 Income (Loss) from Discontinued Operations, Net of Tax — 144 (16 ) — 128 Net Income (Loss) 92,441 143,943 68,286 (212,195 ) 92,475 Less: Net Income (Loss) Attributable to Noncontrolling Interests — — 34 — 34 Net Income (Loss) Attributable to Iron Mountain Incorporated $ 92,441 $ 143,943 $ 68,252 $ (212,195 ) $ 92,441 Net Income (Loss) $ 92,441 $ 143,943 $ 68,286 $ (212,195 ) $ 92,475 Other Comprehensive (Loss) Income: Foreign Currency Translation Adjustments (4,280 ) — (1,511 ) — (5,791 ) Change in fair value of interest rate swap agreements (4,931 ) — — — (4,931 ) Equity in Other Comprehensive (Loss) Income of Subsidiaries (1,650 ) 1,121 — 529 — Total Other Comprehensive (Loss) Income (10,861 ) 1,121 (1,511 ) 529 (10,722 ) Comprehensive Income (Loss) 81,580 145,064 66,775 (211,666 ) 81,753 Comprehensive Income (Loss) Attributable to Noncontrolling Interests — — 173 — 173 Comprehensive Income (Loss) Attributable to Iron Mountain Incorporated $ 81,580 $ 145,064 $ 66,602 $ (211,666 ) $ 81,580 _____________________________________________________________ (1) Included within Interest Expense (Income), Net are intercompany management fees and royalty fees, which are eliminated in our consolidated financial statements. CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (Continued) Three Months Ended June 30, 2018 Parent Guarantors Non- Eliminations Consolidated Revenues: Storage rental $ — $ 397,449 $ 257,990 $ — $ 655,439 Service — 244,403 160,981 — 405,384 Intercompany revenues — 1,216 4,305 (5,521 ) — Total Revenues — 643,068 423,276 (5,521 ) 1,060,823 Operating Expenses: Cost of sales (excluding depreciation and amortization) — 251,360 200,104 — 451,464 Intercompany cost of sales — 4,305 1,216 (5,521 ) — Selling, general and administrative 36 167,739 84,450 — 252,225 Depreciation and amortization 32 96,170 60,018 — 156,220 (Gain) Loss on disposal/write-down of property, plant and equipment, net — (462 ) (84 ) — (546 ) Total Operating Expenses 68 519,112 345,704 (5,521 ) 859,363 Operating (Loss) Income (68 ) 123,956 77,572 — 201,460 Interest Expense (Income), Net(1) 50,313 3,005 48,878 — 102,196 Other Expense (Income), Net 2,767 6,575 (28,398 ) — (19,056 ) (Loss) Income from Continuing Operations Before Provision (Benefit) for Income Taxes (53,148 ) 114,376 57,092 — 118,320 Provision (Benefit) for Income Taxes — 12,509 13,548 — 26,057 Equity in the (Earnings) Losses of Subsidiaries, Net of Tax (144,909 ) (38,071 ) — 182,980 — Income (Loss) from Continuing Operations 91,761 139,938 43,544 (182,980 ) 92,263 (Loss) Income from Discontinued Operations — (273 ) (87 ) — (360 ) Net Income (Loss) 91,761 139,665 43,457 (182,980 ) 91,903 Less: Net Income (Loss) Attributable to Noncontrolling Interests — — 142 — 142 Net Income (Loss) Attributable to Iron Mountain Incorporated $ 91,761 $ 139,665 $ 43,315 $ (182,980 ) $ 91,761 Net Income (Loss) $ 91,761 $ 139,665 $ 43,457 $ (182,980 ) $ 91,903 Other Comprehensive (Loss) Income: Foreign Currency Translation Adjustment 10,257 — (149,429 ) — (139,172 ) Change in fair value of interest rate swap agreements 2,388 — — — 2,388 Equity in Other Comprehensive (Loss) Income of Subsidiaries (146,018 ) (129,860 ) — 275,878 — Total Other Comprehensive (Loss) Income (133,373 ) (129,860 ) (149,429 ) 275,878 (136,784 ) Comprehensive (Loss) Income (41,612 ) 9,805 (105,972 ) 92,898 (44,881 ) Comprehensive (Loss) Income Attributable to Noncontrolling Interests — — (3,274 ) — (3,274 ) Comprehensive (Loss) Income Attributable to Iron Mountain Incorporated $ (41,612 ) $ 9,805 $ (102,698 ) $ 92,898 $ (41,607 ) _____________________________________________________________ (1) Included within Interest Expense (Income), Net are intercompany management fees and royalty fees, which are eliminated in our consolidated financial statements. CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (Continued) Six Months Ended June 30, 2019 Parent Guarantors Non- Eliminations Consolidated Revenues: Storage rental $ — $ 814,900 $ 517,362 $ — $ 1,332,262 Service — 485,783 302,725 — 788,508 Intercompany revenues — 2,312 9,463 (11,775 ) — Total Revenues — 1,302,995 829,550 (11,775 ) 2,120,770 Operating Expenses: Cost of sales (excluding depreciation and amortization) — 523,812 402,834 — 926,646 Intercompany cost of sales — 9,463 2,312 (11,775 ) — Selling, general and administrative 149 361,265 161,909 — 523,323 Depreciation and amortization 45 207,548 119,221 — 326,814 Loss (Gain) on disposal/write-down of property, plant and equipment, net — 27,360 (35,163 ) — (7,803 ) Total Operating Expenses 194 1,129,448 651,113 (11,775 ) 1,768,980 Operating (Loss) Income (194 ) 173,547 178,437 — 351,790 Interest Expense (Income), Net(1) 99,226 12,697 95,827 — 207,750 Other Expense (Income), Net 541 5,014 (5,537 ) — 18 (Loss) Income from Continuing Operations Before Provision (Benefit) for Income Taxes (99,961 ) 155,836 88,147 — 144,022 Provision (Benefit) for Income Taxes — 2,454 18,745 — 21,199 Equity in the (Earnings) Losses of Subsidiaries, Net of Tax (221,963 ) (65,552 ) — 287,515 — Income (Loss) from Continuing Operations 122,002 218,934 69,402 (287,515 ) 122,823 Income (Loss) from Discontinued Operations — 120 (16 ) — 104 Net Income (Loss) 122,002 219,054 69,386 (287,515 ) 122,927 Less: Net Income (Loss) Attributable to Noncontrolling Interests — — 925 — 925 Net Income (Loss) Attributable to Iron Mountain Incorporated $ 122,002 $ 219,054 $ 68,461 $ (287,515 ) $ 122,002 Net Income (Loss) $ 122,002 $ 219,054 $ 69,386 $ (287,515 ) $ 122,927 Other Comprehensive Income (Loss): Foreign Currency Translation Adjustments 1,861 — 10,539 — 12,400 Change in fair value of interest rate swap agreements (7,605 ) — — — (7,605 ) Equity in Other Comprehensive Income (Loss) of Subsidiaries 9,587 8,277 — (17,864 ) — Total Other Comprehensive Income (Loss) 3,843 8,277 10,539 (17,864 ) 4,795 Comprehensive Income (Loss) 125,845 227,331 79,925 (305,379 ) 127,722 Comprehensive Income (Loss) Attributable to Noncontrolling Interests — — 1,877 — 1,877 Comprehensive Income (Loss) Attributable to Iron Mountain Incorporated $ 125,845 $ 227,331 $ 78,048 $ (305,379 ) $ 125,845 _____________________________________________________________ (1) Included within Interest Expense (Income), Net are intercompany management fees and royalty fees, which are eliminated in our consolidated financial statements. CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (Continued) Six Months Ended June 30, 2018 Parent Guarantors Non- Eliminations Consolidated Revenues: Storage rental $ — $ 793,925 $ 512,663 $ — $ 1,306,588 Service — 474,633 322,060 — 796,693 Intercompany revenues — 2,421 8,796 (11,217 ) — Total Revenues — 1,270,979 843,519 (11,217 ) 2,103,281 Operating Expenses: Cost of sales (excluding depreciation and amortization) — 497,523 402,662 — 900,185 Intercompany cost of sales — 8,796 2,421 (11,217 ) — Selling, general and administrative 79 353,087 176,229 — 529,395 Depreciation and amortization 65 198,616 118,117 — 316,798 (Gain) Loss on disposal/write-down of property, plant and equipment, net — (818 ) (858 ) — (1,676 ) Total Operating Expenses 144 1,057,204 698,571 (11,217 ) 1,744,702 Operating (Loss) Income (144 ) 213,775 144,948 — 358,579 Interest Expense (Income), Net(1) 100,254 1,497 98,147 — 199,898 Other Expense (Income), Net 1,610 8,135 (8,650 ) — 1,095 (Loss) Income from Continuing Operations Before Provision (Benefit) for Income Taxes (102,008 ) 204,143 55,451 — 157,586 Provision (Benefit) for Income Taxes — 5,797 20,137 — 25,934 Equity in the (Earnings) Losses of Subsidiaries, Net of Tax (232,228 ) (28,981 ) — 261,209 — Income (Loss) from Continuing Operations 130,220 227,327 35,314 (261,209 ) 131,652 (Loss) Income from Discontinued Operations — (695 ) (127 ) — (822 ) Net Income (Loss) 130,220 226,632 35,187 (261,209 ) 130,830 Less: Net Income (Loss) Attributable to Noncontrolling Interests — — 610 — 610 Net Income (Loss) Attributable to Iron Mountain Incorporated $ 130,220 $ 226,632 $ 34,577 $ (261,209 ) $ 130,220 Net Income (Loss) $ 130,220 $ 226,632 $ 35,187 $ (261,209 ) $ 130,830 Other Comprehensive (Loss) Income: Foreign Currency Translation Adjustment 4,622 — (112,143 ) — (107,521 ) Change in fair value of interest rate swap agreements 2,203 — — — 2,203 Equity in Other Comprehensive (Loss) Income of Subsidiaries (110,286 ) (91,524 ) — 201,810 — Total Other Comprehensive (Loss) Income (103,461 ) (91,524 ) (112,143 ) 201,810 (105,318 ) Comprehensive Income (Loss) 26,759 135,108 (76,956 ) (59,399 ) 25,512 Comprehensive (Loss) Income Attributable to Noncontrolling Interests — — (1,247 ) — (1,247 ) Comprehensive Income (Loss) Attributable to Iron Mountain Incorporated $ 26,759 $ 135,108 $ (75,709 ) $ (59,399 ) $ 26,759 ______________________________________________________ (1) Included within Interest Expense (Income), Net are intercompany management fees and royalty fees, which are eliminated in our consolidated financial statements.
Schedule of selected consolidated Comprehensive Income statements of Parent, Guarantors, Canada Company and Non-Guarantors	CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) Three Months Ended June 30, 2019 Parent Guarantors Non- Eliminations Consolidated Revenues: Storage rental $ — $ 411,159 $ 258,129 $ — $ 669,288 Service — 246,090 151,529 — 397,619 Intercompany revenues — 1,158 4,540 (5,698 ) — Total Revenues — 658,407 414,198 (5,698 ) 1,066,907 Operating Expenses: Cost of sales (excluding depreciation and amortization) — 260,675 204,427 — 465,102 Intercompany — 4,540 1,158 (5,698 ) — Selling, general and administrative 62 173,443 79,259 — 252,764 Depreciation and amortization 22 104,594 59,715 — 164,331 Loss (Gain) on disposal/write-down of property, plant and equipment, net — 26,786 (35,191 ) — (8,405 ) Total Operating Expenses 84 570,038 309,368 (5,698 ) 873,792 Operating (Loss) Income (84 ) 88,369 104,830 — 193,115 Interest Expense (Income), Net(1) 49,601 8,640 47,073 — 105,314 Other Expense (Income), Net 359 4,487 (20,038 ) — (15,192 ) (Loss) Income from Continuing Operations Before Provision (Benefit) for Income Taxes (50,044 ) 75,242 77,795 — 102,993 Provision (Benefit) for Income Taxes — 1,153 9,493 — 10,646 Equity in the (Earnings) Losses of Subsidiaries, Net of Tax (142,485 ) (69,710 ) — 212,195 — Income (Loss) from Continuing Operations 92,441 143,799 68,302 (212,195 ) 92,347 Income (Loss) from Discontinued Operations, Net of Tax — 144 (16 ) — 128 Net Income (Loss) 92,441 143,943 68,286 (212,195 ) 92,475 Less: Net Income (Loss) Attributable to Noncontrolling Interests — — 34 — 34 Net Income (Loss) Attributable to Iron Mountain Incorporated $ 92,441 $ 143,943 $ 68,252 $ (212,195 ) $ 92,441 Net Income (Loss) $ 92,441 $ 143,943 $ 68,286 $ (212,195 ) $ 92,475 Other Comprehensive (Loss) Income: Foreign Currency Translation Adjustments (4,280 ) — (1,511 ) — (5,791 ) Change in fair value of interest rate swap agreements (4,931 ) — — — (4,931 ) Equity in Other Comprehensive (Loss) Income of Subsidiaries (1,650 ) 1,121 — 529 — Total Other Comprehensive (Loss) Income (10,861 ) 1,121 (1,511 ) 529 (10,722 ) Comprehensive Income (Loss) 81,580 145,064 66,775 (211,666 ) 81,753 Comprehensive Income (Loss) Attributable to Noncontrolling Interests — — 173 — 173 Comprehensive Income (Loss) Attributable to Iron Mountain Incorporated $ 81,580 $ 145,064 $ 66,602 $ (211,666 ) $ 81,580 _____________________________________________________________ (1) Included within Interest Expense (Income), Net are intercompany management fees and royalty fees, which are eliminated in our consolidated financial statements. CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (Continued) Three Months Ended June 30, 2018 Parent Guarantors Non- Eliminations Consolidated Revenues: Storage rental $ — $ 397,449 $ 257,990 $ — $ 655,439 Service — 244,403 160,981 — 405,384 Intercompany revenues — 1,216 4,305 (5,521 ) — Total Revenues — 643,068 423,276 (5,521 ) 1,060,823 Operating Expenses: Cost of sales (excluding depreciation and amortization) — 251,360 200,104 — 451,464 Intercompany cost of sales — 4,305 1,216 (5,521 ) — Selling, general and administrative 36 167,739 84,450 — 252,225 Depreciation and amortization 32 96,170 60,018 — 156,220 (Gain) Loss on disposal/write-down of property, plant and equipment, net — (462 ) (84 ) — (546 ) Total Operating Expenses 68 519,112 345,704 (5,521 ) 859,363 Operating (Loss) Income (68 ) 123,956 77,572 — 201,460 Interest Expense (Income), Net(1) 50,313 3,005 48,878 — 102,196 Other Expense (Income), Net 2,767 6,575 (28,398 ) — (19,056 ) (Loss) Income from Continuing Operations Before Provision (Benefit) for Income Taxes (53,148 ) 114,376 57,092 — 118,320 Provision (Benefit) for Income Taxes — 12,509 13,548 — 26,057 Equity in the (Earnings) Losses of Subsidiaries, Net of Tax (144,909 ) (38,071 ) — 182,980 — Income (Loss) from Continuing Operations 91,761 139,938 43,544 (182,980 ) 92,263 (Loss) Income from Discontinued Operations — (273 ) (87 ) — (360 ) Net Income (Loss) 91,761 139,665 43,457 (182,980 ) 91,903 Less: Net Income (Loss) Attributable to Noncontrolling Interests — — 142 — 142 Net Income (Loss) Attributable to Iron Mountain Incorporated $ 91,761 $ 139,665 $ 43,315 $ (182,980 ) $ 91,761 Net Income (Loss) $ 91,761 $ 139,665 $ 43,457 $ (182,980 ) $ 91,903 Other Comprehensive (Loss) Income: Foreign Currency Translation Adjustment 10,257 — (149,429 ) — (139,172 ) Change in fair value of interest rate swap agreements 2,388 — — — 2,388 Equity in Other Comprehensive (Loss) Income of Subsidiaries (146,018 ) (129,860 ) — 275,878 — Total Other Comprehensive (Loss) Income (133,373 ) (129,860 ) (149,429 ) 275,878 (136,784 ) Comprehensive (Loss) Income (41,612 ) 9,805 (105,972 ) 92,898 (44,881 ) Comprehensive (Loss) Income Attributable to Noncontrolling Interests — — (3,274 ) — (3,274 ) Comprehensive (Loss) Income Attributable to Iron Mountain Incorporated $ (41,612 ) $ 9,805 $ (102,698 ) $ 92,898 $ (41,607 ) _____________________________________________________________ (1) Included within Interest Expense (Income), Net are intercompany management fees and royalty fees, which are eliminated in our consolidated financial statements. CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (Continued) Six Months Ended June 30, 2019 Parent Guarantors Non- Eliminations Consolidated Revenues: Storage rental $ — $ 814,900 $ 517,362 $ — $ 1,332,262 Service — 485,783 302,725 — 788,508 Intercompany revenues — 2,312 9,463 (11,775 ) — Total Revenues — 1,302,995 829,550 (11,775 ) 2,120,770 Operating Expenses: Cost of sales (excluding depreciation and amortization) — 523,812 402,834 — 926,646 Intercompany cost of sales — 9,463 2,312 (11,775 ) — Selling, general and administrative 149 361,265 161,909 — 523,323 Depreciation and amortization 45 207,548 119,221 — 326,814 Loss (Gain) on disposal/write-down of property, plant and equipment, net — 27,360 (35,163 ) — (7,803 ) Total Operating Expenses 194 1,129,448 651,113 (11,775 ) 1,768,980 Operating (Loss) Income (194 ) 173,547 178,437 — 351,790 Interest Expense (Income), Net(1) 99,226 12,697 95,827 — 207,750 Other Expense (Income), Net 541 5,014 (5,537 ) — 18 (Loss) Income from Continuing Operations Before Provision (Benefit) for Income Taxes (99,961 ) 155,836 88,147 — 144,022 Provision (Benefit) for Income Taxes — 2,454 18,745 — 21,199 Equity in the (Earnings) Losses of Subsidiaries, Net of Tax (221,963 ) (65,552 ) — 287,515 — Income (Loss) from Continuing Operations 122,002 218,934 69,402 (287,515 ) 122,823 Income (Loss) from Discontinued Operations — 120 (16 ) — 104 Net Income (Loss) 122,002 219,054 69,386 (287,515 ) 122,927 Less: Net Income (Loss) Attributable to Noncontrolling Interests — — 925 — 925 Net Income (Loss) Attributable to Iron Mountain Incorporated $ 122,002 $ 219,054 $ 68,461 $ (287,515 ) $ 122,002 Net Income (Loss) $ 122,002 $ 219,054 $ 69,386 $ (287,515 ) $ 122,927 Other Comprehensive Income (Loss): Foreign Currency Translation Adjustments 1,861 — 10,539 — 12,400 Change in fair value of interest rate swap agreements (7,605 ) — — — (7,605 ) Equity in Other Comprehensive Income (Loss) of Subsidiaries 9,587 8,277 — (17,864 ) — Total Other Comprehensive Income (Loss) 3,843 8,277 10,539 (17,864 ) 4,795 Comprehensive Income (Loss) 125,845 227,331 79,925 (305,379 ) 127,722 Comprehensive Income (Loss) Attributable to Noncontrolling Interests — — 1,877 — 1,877 Comprehensive Income (Loss) Attributable to Iron Mountain Incorporated $ 125,845 $ 227,331 $ 78,048 $ (305,379 ) $ 125,845 _____________________________________________________________ (1) Included within Interest Expense (Income), Net are intercompany management fees and royalty fees, which are eliminated in our consolidated financial statements. CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (LOSS) (Continued) Six Months Ended June 30, 2018 Parent Guarantors Non- Eliminations Consolidated Revenues: Storage rental $ — $ 793,925 $ 512,663 $ — $ 1,306,588 Service — 474,633 322,060 — 796,693 Intercompany revenues — 2,421 8,796 (11,217 ) — Total Revenues — 1,270,979 843,519 (11,217 ) 2,103,281 Operating Expenses: Cost of sales (excluding depreciation and amortization) — 497,523 402,662 — 900,185 Intercompany cost of sales — 8,796 2,421 (11,217 ) — Selling, general and administrative 79 353,087 176,229 — 529,395 Depreciation and amortization 65 198,616 118,117 — 316,798 (Gain) Loss on disposal/write-down of property, plant and equipment, net — (818 ) (858 ) — (1,676 ) Total Operating Expenses 144 1,057,204 698,571 (11,217 ) 1,744,702 Operating (Loss) Income (144 ) 213,775 144,948 — 358,579 Interest Expense (Income), Net(1) 100,254 1,497 98,147 — 199,898 Other Expense (Income), Net 1,610 8,135 (8,650 ) — 1,095 (Loss) Income from Continuing Operations Before Provision (Benefit) for Income Taxes (102,008 ) 204,143 55,451 — 157,586 Provision (Benefit) for Income Taxes — 5,797 20,137 — 25,934 Equity in the (Earnings) Losses of Subsidiaries, Net of Tax (232,228 ) (28,981 ) — 261,209 — Income (Loss) from Continuing Operations 130,220 227,327 35,314 (261,209 ) 131,652 (Loss) Income from Discontinued Operations — (695 ) (127 ) — (822 ) Net Income (Loss) 130,220 226,632 35,187 (261,209 ) 130,830 Less: Net Income (Loss) Attributable to Noncontrolling Interests — — 610 — 610 Net Income (Loss) Attributable to Iron Mountain Incorporated $ 130,220 $ 226,632 $ 34,577 $ (261,209 ) $ 130,220 Net Income (Loss) $ 130,220 $ 226,632 $ 35,187 $ (261,209 ) $ 130,830 Other Comprehensive (Loss) Income: Foreign Currency Translation Adjustment 4,622 — (112,143 ) — (107,521 ) Change in fair value of interest rate swap agreements 2,203 — — — 2,203 Equity in Other Comprehensive (Loss) Income of Subsidiaries (110,286 ) (91,524 ) — 201,810 — Total Other Comprehensive (Loss) Income (103,461 ) (91,524 ) (112,143 ) 201,810 (105,318 ) Comprehensive Income (Loss) 26,759 135,108 (76,956 ) (59,399 ) 25,512 Comprehensive (Loss) Income Attributable to Noncontrolling Interests — — (1,247 ) — (1,247 ) Comprehensive Income (Loss) Attributable to Iron Mountain Incorporated $ 26,759 $ 135,108 $ (75,709 ) $ (59,399 ) $ 26,759 ______________________________________________________ (1) Included within Interest Expense (Income), Net are intercompany management fees and royalty fees, which are eliminated in our consolidated financial statements.
Schedule of selected consolidated cash flow statements of Parent, Guarantors, Canada Company and Non-Guarantors	CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS Six Months Ended June 30, 2019 Parent Guarantors Non- Eliminations Consolidated Cash Flows from Operating Activities: Cash Flows from Operating Activities—Continuing Operations $ (75,316 ) $ 397,474 $ 107,573 $ — $ 429,731 Cash Flows from Operating Activities—Discontinued Operations — — — — — Cash Flows from Operating Activities (75,316 ) 397,474 $ 107,573 $ — $ 429,731 Cash Flows from Investing Activities: Capital expenditures — (201,784 ) (165,347 ) — (367,131 ) Cash paid for acquisitions, net of cash acquired — (9,508 ) (35,143 ) — (44,651 ) Intercompany loans to subsidiaries 430,274 10,696 — (440,970 ) — Acquisitions of customer relationships, customer inducements and data center lease-based intangibles — (68,153 ) (22,409 ) — (90,562 ) Investments in joint ventures (see Note 9) — (19,222 ) — — (19,222 ) Proceeds from sales of property and equipment and other, net — 54 46,778 — 46,832 Cash Flows from Investing Activities—Continuing Operations 430,274 (287,917 ) (176,121 ) (440,970 ) (474,734 ) Cash Flows from Investing Activities—Discontinued Operations — 2,564 2,497 — 5,061 Cash Flows from Investing Activities 430,274 (285,353 ) (173,624 ) (440,970 ) (469,673 ) Cash Flows from Financing Activities: Repayment of revolving credit facility, term loan facilities and other debt — (837,712 ) (1,765,210 ) — (2,602,922 ) Proceeds from revolving credit facility, term loan facilities and other debt — 1,209,304 1,788,803 — 2,998,107 Debit (payments) balances under cash pools — (10,612 ) 14,483 (3,871 ) — Debt (repayment to) financing from and equity (distribution to) contribution from noncontrolling interests, net — — (999 ) — (999 ) Intercompany loans from parent — (410,198 ) (30,772 ) 440,970 — Parent cash dividends (353,357 ) — — — (353,357 ) Net (payments) proceeds associated with employee stock-based awards (1,727 ) — — — (1,727 ) Cash Flows from Financing Activities—Continuing Operations (355,084 ) (49,218 ) 6,305 437,099 39,102 Cash Flows from Financing Activities—Discontinued Operations — — — — — Cash Flows from Financing Activities (355,084 ) (49,218 ) 6,305 437,099 39,102 Effect of exchange rates on cash and cash equivalents — — (2,649 ) — (2,649 ) (Decrease) Increase in cash and cash equivalents (126 ) 62,903 (62,395 ) (3,871 ) (3,489 ) Cash and cash equivalents, including Restricted Cash, beginning of period 132 61,650 169,318 (65,615 ) 165,485 Cash and cash equivalents, including Restricted Cash, $ 6 $ 124,553 $ 106,923 $ (69,486 ) $ 161,996 CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Continued) Six Months Ended June 30, 2018 Parent Guarantors Non- Eliminations Consolidated Cash Flows from Operating Activities: Cash Flows from Operating Activities—Continuing Operations $ (117,979 ) $ 409,167 $ 102,618 $ — $ 393,806 Cash Flows from Operating Activities—Discontinued Operations — (477 ) — — (477 ) Cash Flows from Operating Activities (117,979 ) 408,690 102,618 — 393,329 Cash Flows from Investing Activities: Capital expenditures — (142,737 ) (74,864 ) — (217,601 ) Cash paid for acquisitions, net of cash acquired — (1,314,370 ) (352,499 ) — (1,666,869 ) Intercompany loans to subsidiaries 370,423 19,092 — (389,515 ) — Acquisitions of customer relationships, customer inducements and data center lease-based intangibles — (24,922 ) (12,311 ) — (37,233 ) Proceeds from sales of property and equipment and other, net — — 207 — 207 Cash Flows from Investing Activities—Continuing Operations 370,423 (1,462,937 ) (439,467 ) (389,515 ) (1,921,496 ) Cash Flows from Investing Activities—Discontinued Operations — — — — — Cash Flows from Investing Activities 370,423 (1,462,937 ) (439,467 ) (389,515 ) (1,921,496 ) Cash Flows from Financing Activities: Repayment of revolving credit facility, term loan facilities and other debt — (3,657,315 ) (4,219,481 ) — (7,876,796 ) Proceeds from revolving credit facility, term loan facilities and other debt — 4,531,603 4,412,813 — 8,944,416 Debit (payments) balances under cash pools — (7,657 ) 2,850 4,807 — Debt (repayment to) financing from and equity (distribution to) contribution from noncontrolling interests, net — — (1,079 ) — (1,079 ) Intercompany loans from parent — (384,323 ) (5,192 ) 389,515 — Parent cash dividends (337,052 ) — — — (337,052 ) Net (payments) proceeds associated with employee stock-based awards (2,259 ) — — — (2,259 ) Net proceeds associated with the Over-Allotment Option exercise 76,192 — — — 76,192 Net proceeds associated with the At the Market (ATM) Program 8,716 — — — 8,716 Payment of debt financing and stock issuance costs (412 ) (12,322 ) (651 ) — (13,385 ) Cash Flows from Financing Activities—Continuing Operations (254,815 ) 469,986 189,260 394,322 798,753 Cash Flows from Financing Activities—Discontinued Operations — — — — — Cash Flows from Financing Activities (254,815 ) 469,986 189,260 394,322 798,753 Effect of exchange rates on cash and cash equivalents — — (8,093 ) — (8,093 ) (Decrease) Increase in cash and cash equivalents (2,371 ) (584,261 ) (155,682 ) 4,807 (737,507 ) Cash and cash equivalents, including Restricted Cash, beginning of period 2,433 634,317 383,675 (94,726 ) 925,699 Cash and cash equivalents, including Restricted Cash, end of period $ 62 $ 50,056 $ 227,993 $ (89,919 ) $ 188,192

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Schedule of analysis of business segment information and reconciliation	An analysis of our business segment information and reconciliation to the accompanying Condensed Consolidated Financial Statements is as follows: North American North American Western European Business Other International Business Global Data Center Business Corporate Business Total For the Three Months Ended June 30, 2019 Total Revenues $ 539,273 $ 96,415 $ 127,327 $ 199,823 $ 62,291 $ 41,778 $ 1,066,907 Storage Rental 313,355 66,750 78,554 128,898 60,582 21,149 669,288 Service 225,918 29,665 48,773 70,925 1,709 20,629 397,619 Depreciation and Amortization 62,691 10,100 14,328 30,760 32,671 13,781 164,331 Depreciation 46,655 7,818 10,476 17,833 19,027 11,913 113,722 Amortization 16,036 2,282 3,852 12,927 13,644 1,868 50,609 Adjusted EBITDA 245,585 53,068 44,163 58,749 27,641 (78,264 ) 350,942 Expenditures for Segment Assets 46,545 5,254 24,334 18,829 102,477 12,805 210,244 Capital Expenditures (see Liquidity and Capital Resources section of Management's Discussion & Analysis of Financial Condition and Results of Operations) 28,596 5,254 22,724 11,955 101,032 12,805 182,366 Cash Paid for Acquisitions, Net of Cash Acquired — — 366 4,862 — — 5,228 Acquisitions of Customer Relationships, Customer Inducements and Contract Fulfillment Costs and third-party commissions 17,949 — 1,244 2,012 1,445 — 22,650 For the Three Months Ended June 30, 2018 Total Revenues $ 539,080 $ 100,031 $ 133,440 $ 207,527 $ 54,895 $ 25,850 $ 1,060,823 Storage Rental 305,895 68,808 82,439 129,611 51,945 16,741 655,439 Service 233,185 31,223 51,001 77,916 2,950 9,109 405,384 Depreciation and Amortization 60,970 9,538 17,500 30,364 22,503 15,345 156,220 Depreciation 48,252 7,217 11,821 18,199 13,120 12,892 111,501 Amortization 12,718 2,321 5,679 12,165 9,383 2,453 44,719 Adjusted EBITDA 244,861 55,280 46,594 60,452 24,901 (64,533 ) 367,555 Expenditures for Segment Assets 41,364 3,643 27,559 30,287 265,173 11,052 379,078 Capital Expenditures (see Liquidity and Capital Resources section of Management's Discussion & Analysis of Financial Condition and Results of Operations) 25,122 3,643 25,096 13,921 43,162 11,052 121,996 Cash Paid for Acquisitions, Net of Cash Acquired — — — 16,188 221,707 — 237,895 Acquisitions of Customer Relationships, Customer Inducements and Contract Fulfillment Costs 16,242 — 2,463 178 304 — 19,187 North American North American Western European Business Other International Business Global Data Center Business Corporate Business Total As of and for the Six Months Ended June 30, 2019 Total Revenues $ 1,066,653 $ 193,162 $ 256,080 $ 400,779 $ 123,827 $ 80,269 $ 2,120,770 Storage Rental 620,341 133,322 159,249 258,371 120,300 40,679 1,332,262 Service 446,312 59,840 96,831 142,408 3,527 39,590 788,508 Depreciation and Amortization 122,693 20,302 29,585 61,359 64,303 28,572 326,814 Depreciation 92,407 15,831 21,423 36,051 38,040 24,581 228,333 Amortization 30,286 4,471 8,162 25,308 26,263 3,991 98,481 Adjusted EBITDA 469,268 103,620 83,372 116,873 53,652 (151,337 ) 675,448 Total Assets (1) 5,840,023 877,777 1,406,937 2,703,347 2,330,535 562,363 13,720,982 Expenditures for Segment Assets 102,810 10,886 54,435 50,083 256,182 27,948 502,344 Capital Expenditures (see Liquidity and Capital Resources section of Management's Discussion & Analysis of Financial Condition and Results of Operations) 57,284 10,886 24,840 27,104 222,589 24,428 367,131 Cash Paid for Acquisitions, Net of Cash Acquired 9,876 — 11,850 19,405 — 3,520 44,651 Acquisitions of Customer Relationships and Customer Inducements and Contract Fulfillment Costs and third-party commissions 35,650 — 17,745 3,574 33,593 — 90,562 As of and for the Six Months Ended June 30, 2018 Total Revenues $ 1,065,923 $ 199,995 $ 267,515 $ 418,294 $ 101,498 $ 50,056 $ 2,103,281 Storage Rental 610,714 138,054 166,391 261,358 97,440 32,631 1,306,588 Service 455,209 61,941 101,124 156,936 4,058 17,425 796,693 Depreciation and Amortization 123,722 19,642 35,056 62,237 44,771 31,370 316,798 Depreciation 97,390 15,240 24,579 37,263 24,500 25,961 224,933 Amortization 26,332 4,402 10,477 24,974 20,271 5,409 91,865 Adjusted EBITDA 470,599 109,132 90,560 121,199 45,691 (134,051 ) 703,130 Total Assets (1) 5,010,186 829,682 1,344,699 2,247,071 1,909,088 476,433 11,817,159 Expenditures for Segment Assets 84,545 10,496 35,039 62,447 1,703,185 25,991 1,921,703 Capital Expenditures (see Liquidity and Capital Resources section of Management's Discussion & Analysis of Financial Condition and Results of Operations) 54,992 10,496 31,143 39,063 56,273 25,634 217,601 Cash Paid for Acquisitions, Net of Cash Acquired 1,551 — — 19,396 1,645,922 — 1,666,869 Acquisitions of Customer Relationships, Customer Inducements and Contract Fulfillment Costs 28,002 — 3,896 3,988 990 357 37,233 ______________________________________________________________ (1) Excludes all intercompany receivables or payables and investment in subsidiary balances. Total assets as of June 30, 2019 reflects the adoption of ASU 2016-02.
Schedule of reconciliation of Adjusted EBITDA to income from continuing operations	A reconciliation of Adjusted EBITDA to income (loss) from continuing operations on a consolidated basis for the three and six months ended June 30, 2019 and 2018 is as follows: Three Months Ended Six Months Ended 2019 2018 2019 2018 Adjusted EBITDA $ 350,942 $ 367,555 $ 675,448 $ 703,130 (Add)/Deduct: Provision (Benefit) for Income Taxes 10,646 26,057 21,199 25,934 Other (Income) Expense, Net (15,192 ) (19,056 ) 18 1,095 Interest Expense, Net 105,314 102,196 207,750 199,898 (Gain) loss on disposal/write-down of property, plant and equipment, net (8,405 ) (546 ) (7,803 ) (1,676 ) Depreciation and Amortization 164,331 156,220 326,814 316,798 Significant Acquisition Costs(1) 1,901 10,421 4,647 29,429 Income (Loss) from Continuing Operations $ 92,347 $ 92,263 $ 122,823 $ 131,652 _______________________________________________________________________________ (1) As defined in Note 9 to Notes to Consolidated Financial Statements included in our Annual Report.
Revenue from External Customers by Products and Services [Table Text Block]	Information as to our revenues by product and service lines by segment for the three and six months ended June 30, 2019 and 2018 are as follows: North American Records and Information Management Business North American Data Management Business Western European Business Other International Business Global Data Center Business Corporate and Other Business Total Consolidated For the Three Months Ended June 30, 2019 Records Management(1) $ 442,785 $ — $ 109,369 $ 172,433 $ — $ 26,195 $ 750,782 Data Management(1) — 93,152 16,908 18,787 — 15,583 144,430 Information Destruction(1)(2) 96,488 3,263 1,050 8,603 — — 109,404 Data Center — — — — 62,291 — 62,291 Total Revenues $ 539,273 $ 96,415 $ 127,327 $ 199,823 $ 62,291 $ 41,778 $ 1,066,907 For the Three Months Ended June 30, 2018 Records Management(1) $ 441,401 $ — $ 113,925 $ 179,194 $ — $ 11,801 $ 746,321 Data Management(1) — 97,768 19,393 19,227 — 14,049 150,437 Information Destruction(1)(2) 97,679 2,263 122 9,106 — — 109,170 Data Center — — — — 54,895 — 54,895 Total Revenues $ 539,080 $ 100,031 $ 133,440 $ 207,527 $ 54,895 $ 25,850 $ 1,060,823 For the Six Months Ended June 30, 2019 Records Management(1) $ 870,152 $ — $ 218,076 $ 345,410 $ — $ 50,540 $ 1,484,178 Data Management(1) — 187,141 36,794 38,014 — 29,729 291,678 Information Destruction(1)(2) 196,501 6,021 1,210 17,355 — — 221,087 Data Center — — — — 123,827 — 123,827 Total Revenues $ 1,066,653 $ 193,162 $ 256,080 $ 400,779 $ 123,827 $ 80,269 $ 2,120,770 For the Six Months Ended June 30, 2018 Records Management(1) $ 876,403 $ — $ 227,684 $ 360,524 $ — $ 22,205 $ 1,486,816 Data Management(1) — 195,362 39,612 39,705 — 27,851 302,530 Information Destruction(1)(2) 189,520 4,633 219 18,065 — — 212,437 Data Center — — — — 101,498 — 101,498 Total Revenues $ 1,065,923 $ 199,995 $ 267,515 $ 418,294 $ 101,498 $ 50,056 $ 2,103,281 ____________________________________________________________________________ (1) Each of the offerings within our product and service lines has a component of revenue that is storage rental related and a component that is service revenues, except for information destruction, which does not have a storage rental component. (2) Includes secure shredding services.

Stockholders' Equity Matters (T

Stockholders' Equity Matters (Tables)	6 Months Ended
	Jun. 30, 2019
Equity [Abstract]
Schedule of dividend declared and payments	In fiscal year 2018 and the first six months of 2019, our board of directors declared the following dividends: Declaration Date Dividend Record Date Total Payment Date February 14, 2018 $ 0.5875 March 15, 2018 $ 167,969 April 2, 2018 May 24, 2018 0.5875 June 15, 2018 168,078 July 2, 2018 July 24, 2018 0.5875 September 17, 2018 168,148 October 2, 2018 October 25, 2018 0.6110 December 17, 2018 174,935 January 3, 2019 February 7, 2019 0.6110 March 15, 2019 175,242 April 2, 2019 May 22, 2019 0.6110 June 17, 2019 175,389 July 2, 2019

Significant Acquisition Costs (

Significant Acquisition Costs (Tables)	6 Months Ended
	Jun. 30, 2019
Business Combinations [Abstract]
Acquisition costs Included in Statement of Operations	Significant Acquisition Costs included in the accompanying Condensed Consolidated Statements of Operations for the three and six months ended June 30, 2019 and 2018 are as follows: Three Months Ended Six Months Ended 2019 2018 2019 2018 Cost of sales (excluding depreciation and amortization) $ 1,293 $ 1,827 $ 2,191 $ 2,123 Selling, general and administrative expenses 608 8,594 2,456 27,306 Total Significant Acquisition Costs $ 1,901 $ 10,421 $ 4,647 $ 29,429 Significant Acquisition Costs included in the accompanying Condensed Consolidated Statements of Operations by segment for the three and six months ended June 30, 2019 and 2018 are as follows: Three Months Ended Six Months Ended 2019 2018 2019 2018 North American Records and Information Management Business $ — $ 3,017 $ 378 $ 3,601 North American Data Management Business — 351 — 351 Western European Business 81 1,427 81 3,579 Other International Business 951 896 1,453 1,433 Global Data Center Business 124 1,159 267 11,340 Corporate and Other Business 745 3,571 2,468 9,125 Total Significant Acquisition Costs $ 1,901 $ 10,421 $ 4,647 $ 29,429

Summary of Significant Accoun_4

Summary of Significant Accounting Policies - Cash and Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Cash and Cash Equivalents and Restricted Cash [Abstract]
Restricted cash	$ 9,059	$ 15,141

Summary of Significant Accoun_5

Summary of Significant Accounting Policies - Schedule of Changes in Carrying Value of Goodwill (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019USD ($)
Gross amount of goodwill [Roll Forward]
Goodwill beginning balance	$ 4,441,030
Deductible goodwill acquired during the year	8,259
Non-deductible goodwill acquired during the year	11,302
Fair value and other adjustments	3,692
Currency effects	9,141
Goodwill ending balance	4,473,424
Accumulated goodwill impairment, beginning balance	135,420
Accumulated goodwill impairment, ending balance	135,420
Total fair value and other adjustments	3,755
Cash received	63
North American Records and Information Management Business
Gross amount of goodwill [Roll Forward]
Goodwill beginning balance	2,251,795
Deductible goodwill acquired during the year	5,501
Non-deductible goodwill acquired during the year	0
Fair value and other adjustments	55
Currency effects	7,704
Goodwill ending balance	2,265,055
Accumulated goodwill impairment, beginning balance	85,909
Accumulated goodwill impairment, ending balance	85,909
North American Data Management Business
Gross amount of goodwill [Roll Forward]
Goodwill beginning balance	493,491
Deductible goodwill acquired during the year	0
Non-deductible goodwill acquired during the year	0
Fair value and other adjustments	0
Currency effects	2,093
Goodwill ending balance	495,584
Accumulated goodwill impairment, beginning balance	0
Accumulated goodwill impairment, ending balance	0
Western European Business
Gross amount of goodwill [Roll Forward]
Goodwill beginning balance	381,806
Deductible goodwill acquired during the year	0
Non-deductible goodwill acquired during the year	5,011
Fair value and other adjustments	959
Currency effects	(2,851)
Goodwill ending balance	384,925
Accumulated goodwill impairment, beginning balance	46,500
Accumulated goodwill impairment, ending balance	46,500
Other International Business
Gross amount of goodwill [Roll Forward]
Goodwill beginning balance	818,223
Deductible goodwill acquired during the year	2,758
Non-deductible goodwill acquired during the year	4,387
Fair value and other adjustments	2,842
Currency effects	1,907
Goodwill ending balance	830,117
Accumulated goodwill impairment, beginning balance	0
Accumulated goodwill impairment, ending balance	0
Global Data Center Business
Gross amount of goodwill [Roll Forward]
Goodwill beginning balance	425,956
Deductible goodwill acquired during the year	0
Non-deductible goodwill acquired during the year	0
Fair value and other adjustments	258
Currency effects	193
Goodwill ending balance	426,407
Accumulated goodwill impairment, beginning balance	0
Accumulated goodwill impairment, ending balance	0
Corporate and Other Business
Gross amount of goodwill [Roll Forward]
Goodwill beginning balance	69,759
Deductible goodwill acquired during the year	0
Non-deductible goodwill acquired during the year	1,904
Fair value and other adjustments	(422)
Currency effects	95
Goodwill ending balance	71,336
Accumulated goodwill impairment, beginning balance	3,011
Accumulated goodwill impairment, ending balance	$ 3,011

Summary of Significant Accoun_6

Summary of Significant Accounting Policies - Schedule of Components of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Assets:
Net Carrying Amount	$ 1,467,025	$ 1,506,522
Customer relationship intangible assets
Assets:
Gross Carrying Amount	1,766,769	1,718,919
Accumulated Amortization	(511,672)	(455,705)
Net Carrying Amount	1,255,097	1,263,214
Customer inducements
Assets:
Gross Carrying Amount	52,542	56,478
Accumulated Amortization	(29,091)	(34,181)
Net Carrying Amount	23,451	22,297
Data center lease-based intangible assets
Assets:
Gross Carrying Amount	266,263	271,818
Accumulated Amortization	(77,786)	(50,807)
Net Carrying Amount	188,477	221,011
Liabilities:
Gross Carrying Amount	12,765	12,318
Accumulated Amortization	(2,954)	(1,642)
Net Carrying Amount	9,811	10,676
Third-party commissions asset
Assets:
Gross Carrying Amount	31,391	30,071
Accumulated Amortization	(1,874)	(1,089)
Net Carrying Amount	29,517	28,982
Customer relationships, customer inducements and data center
Assets:
Gross Carrying Amount	2,116,965	2,077,286
Accumulated Amortization	(620,423)	(541,782)
Net Carrying Amount	$ 1,496,542	$ 1,535,504

Summary of Significant Accoun_7

Summary of Significant Accounting Policies - Schedule Of Other Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Finite-Lived Intangible Assets [Line Items]
Net Carrying Amount	$ 1,467,025	$ 1,506,522
Other finite-lived intangible assets (included in Other, a component of other assets, net)
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	19,960	20,310
Accumulated Amortization	(16,482)	(14,798)
Net Carrying Amount	$ 3,478	$ 5,512

Summary of Significant Accoun_8

Summary of Significant Accounting Policies - Amortization Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 50,609	$ 44,719	$ 98,481	$ 91,865
Customer relationship and customer inducement intangible assets
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	28,283	28,813	56,164	57,619
Data center in-place leases and tenant relationships
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	11,372	7,563	23,981	18,401
Third-party commissions asset and other finite-lived intangible assets
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	2,184	1,659	2,941	2,844
Customer inducements
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	2,598	2,968	5,338	5,553
Data center above-market leases and data center below-market leases
Finite-Lived Intangible Assets [Line Items]
Amortization of intangible assets	$ 935	$ 1,293	$ 1,840	$ 2,372

Summary of Significant Accoun_9

Summary of Significant Accounting Policies - Contract Fulfillment Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Intake Costs asset
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Gross Carrying Amount	$ 34,915	$ 39,748
Accumulated Amortization	(19,398)	(24,504)
Net Carrying Amount	15,517	15,244
Capitalized commissions asset
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Gross Carrying Amount	48,564	58,424
Accumulated Amortization	(17,895)	(34,637)
Net Carrying Amount	$ 30,669	$ 23,787

Summary of Significant Accou_10

Summary of Significant Accounting Policies - Amortization Expense Associated with Commissions Asset and Intake Costs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Intake Costs asset
Capitalized Contract Cost [Line Items]
Amortization expense	$ 2,835	$ 2,891	$ 5,514	$ 5,621
Capitalized commissions asset
Capitalized Contract Cost [Line Items]
Amortization expense	$ 5,935	$ 3,793	$ 9,881	$ 7,380

Summary of Significant Accou_11

Summary of Significant Accounting Policies - Summary of Deferred Revenue Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Deferred revenue	$ 268,779	$ 264,823
Other Long-term Liabilities	$ 25,436	$ 26,401

Summary of Significant Accou_12

Summary of Significant Accounting Policies - Revenue Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	$ 1,066,907	$ 1,060,823	$ 2,120,770	$ 2,103,281
Global Data Center Business
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	62,291	54,895	123,827	101,498
Storage rental
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	669,288	655,439	1,332,262	1,306,588
Storage rental | Global Data Center Business
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	60,582	$ 51,945	120,300	$ 97,440
Operating Segments | Storage Rental, Power And Connectivity | Global Data Center Business
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenues	$ 9,900		$ 19,000

Summary of Significant Accou_13

Summary of Significant Accounting Policies - Future Minimum Lease Payments (Details) - Operating Segments - Storage Rental, Power And Connectivity - Global Data Center Business $ in Thousands	Jun. 30, 2019USD ($)
Segment Information [Line Items]
2019 (excluding the six months ended June 30, 2019)	$ 103,016
2020	155,581
2021	111,945
2022	79,763
2023	$ 61,684

Summary of Significant Accou_14

Summary of Significant Accounting Policies - Leases Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Lessee, Lease, Description [Line Items]
Sublease income	$ 1,671	$ 3,554
Accounting Standards Update 2016-02
Lessee, Lease, Description [Line Items]
Cumulative effect of new accounting principle in period of adoption			$ 5,800	$ 5,781
Maximum
Lessee, Lease, Description [Line Items]
Lessee, operating lease, term	10 years	10 years
Lessee, operating lease, renewal term	5 years	5 years
Maximum | Vehicle And Equipment
Lessee, Lease, Description [Line Items]
Lessee, operating lease, term	7 years	7 years
Minimum
Lessee, Lease, Description [Line Items]
Lessee, operating lease, term	5 years	5 years
Lessee, operating lease, renewal term	1 year	1 year
Minimum | Vehicle And Equipment
Lessee, Lease, Description [Line Items]
Lessee, operating lease, term	1 year	1 year

Summary of Significant Accou_15

Summary of Significant Accounting Policies - Supplemental Balance Sheet (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Operating lease right-of-use assets	$ 1,793,807	$ 1,825,721	$ 0
Financing lease right-of-use assets, net of accumulated depreciation	344,320	361,078
Total	2,138,127	2,186,799
Current
Operating lease liabilities	212,968	209,911
Financing lease liabilities	50,116	50,437
Total current lease liabilities	263,084	260,348
Long-term
Operating lease liabilities	1,655,477	1,685,771	$ 0
Financing lease liabilities	331,233	350,263
Total long-term lease liabilities	1,986,710	2,036,034
Total	$ 2,249,794	$ 2,296,382
Operating lease, right-of-use asset, real estate assets, percent	98.00%
Operating lease, right-of-use asset, non-real estate assets, percent	2.00%
Finance lease, right-of-use asset, real estate assets, percent	62.00%
Finance lease, right-of-use asset, non-real estate assets, percent	38.00%

Summary of Significant Accou_16

Summary of Significant Accounting Policies - Leases Costs (Details) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019USD ($)	Jun. 30, 2019USD ($)
Lessee, Lease, Description [Line Items]
Operating lease cost	$ 113,392	$ 222,571
Depreciation of financing lease right-of-use assets	14,942	31,271
Interest expense for financing lease liabilities	4,925	11,067
Total financing lease cost	19,867	42,338
Variable lease costs	$ 23,847	$ 46,610
Operating leases, remaining lease term	11 years	11 years
Finance leases, remaining lease term	11 years	11 years
Operating leases, discount rate	7.10%	7.10%
Financing leases, discount rate	5.60%	5.60%
Cost of Sales
Lessee, Lease, Description [Line Items]
Operating lease cost	$ 110,441	$ 216,335
Selling, General and Administrative Expenses
Lessee, Lease, Description [Line Items]
Operating lease cost	$ 2,951	$ 6,236

Summary of Significant Accou_17

Summary of Significant Accounting Policies - Estimated Future Lease Payments (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Leases, Operating [Abstract]
2019	$ 171,378
2020	321,670
2021	295,696
2022	271,552
2023	246,252
Thereafter	1,482,286
Total minimum lease payments	2,788,834
Less amounts representing interest or imputed interest	(920,389)
Present value of lease obligations	1,868,445
2019		$ 323,454
2020		293,276
2021		267,379
2022		246,128
2023		221,808
Thereafter		1,287,807
Total minimum lease payments		2,639,852
Lessee, Finance Sublease, Description [Abstract]
2019	(3,494)	(7,525)
2020	(5,728)	(7,200)
2021	(4,828)	(7,063)
2022	(4,462)	(6,694)
2023	(4,333)	(6,409)
Thereafter	(10,185)	(6,279)
Total minimum lease payments	(33,030)	(41,170)
Capital Lease Obligations [Abstract]
2019	40,635
2020	60,377
2021	54,766
2022	48,071
2023	40,351
Thereafter	296,260
Total minimum lease payments	540,460
Less amounts representing interest	(159,111)
Present value of lease obligations	$ 381,349
2019		80,513
2020		71,335
2021		61,269
2022		52,832
2023		44,722
Thereafter		377,750
Total minimum lease payments		688,421
Less amounts representing interest or imputed interest		(241,248)
Present value of lease obligations		$ 447,173

Summary of Significant Accou_18

Summary of Significant Accounting Policies - Supplemental Cash Flows (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019USD ($)
Accounting Policies [Abstract]
Operating cash flows used in operating leases	$ 167,426
Financing cash flows used in financing leases	31,146
Operating lease modifications and reassessments	14,024
New operating leases (including acquisitions)	87,482
New financing leases, modifications and reassessments	$ 13,662

Summary of Significant Accou_19

Summary of Significant Accounting Policies - Stock-Based Compensation Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Employee Stock-Based Awards
Expiration period			3 years
Stock-based compensation	$ 12,501	$ 8,689	$ 21,020	$ 16,073
Stock-based compensation expense (income), net of tax	$ 11,649	$ 8,032	$ 19,585	$ 14,865
Stock-based compensation expense per basic and diluted share (in dollars per share)	$ 0.04	$ 0.03	$ 0.07
Employee stock-based awards, unrecognized compensation costs on nonvested awards	$ 61,833		$ 61,833
Employee stock-based awards, unrecognized compensation costs on nonvested awards, weighted average period of recognition			2 years 1 month 6 days
Stock Options
Employee Stock-Based Awards
Stock-based compensation expense per basic and diluted share (in dollars per share)				$ 0.05
Summary of Option Activity
Options outstanding balance, beginning of period (in shares)			4,271,834
Options granted (in shares)			920,706
Options exercised (in shares)			(194,480)
Options forfeited (in shares)			(12,525)
Options expired (in shares)			(15,647)
Options outstanding balance, end of period (in shares)	4,969,888		4,969,888
Options exercisable balance (in shares)	3,160,175		3,160,175
Options expected to vest (in shares)	1,704,441		1,704,441
Restricted Stock Units
Summary of Option Activity
Total fair value of shares or units vested	$ 2,375	$ 676	$ 17,710	$ 16,006
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options
Non-vested at the beginning of the period (in shares)			1,196,566
Granted (in shares)			731,801
Vested (in shares)			(527,239)
Forfeited (in shares)			(55,070)
Non-vested at the end of the period (in shares)	1,346,058		1,346,058
Performance units
Summary of Option Activity
Total fair value of shares or units vested	$ 0	$ 0	$ 6,503	$ 3,033
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options
Non-vested at the beginning of the period (in shares)			667,101
Granted (in shares)			380,856
Vested (in shares)			(169,523)
Forfeited (in shares)			(25,943)
Non-vested at the end of the period (in shares)	852,491		852,491
Performance units | Two Thousand Seventeen
Performance Units Disclosure
Percentage of achievement of the predefined revenue and ROIC targets	100.00%		100.00%
Performance units | Two Thousand Eighteen
Performance Units Disclosure
Percentage of achievement of the predefined revenue and ROIC targets	100.00%		100.00%
Performance units | Two Thousand Nineteen
Performance Units Disclosure
Percentage of achievement of the predefined revenue and ROIC targets	100.00%		100.00%
Original PU Awards
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options
Non-vested at the beginning of the period (in shares)			967,049
Granted (in shares)			380,856
Vested (in shares)			(169,523)
Forfeited (in shares)			(11,093)
Non-vested at the end of the period (in shares)	1,167,289		1,167,289
PUs Adjustment
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options
Non-vested at the beginning of the period (in shares)			299,948
Granted (in shares)			0
Vested (in shares)			0
Forfeited (in shares)			(14,850)
Non-vested at the end of the period (in shares)	314,798		314,798

Summary of Significant Accou_20

Summary of Significant Accounting Policies - Income Per Share, Allowance for Doubtful Accounts, Income Taxes, and Concentration of Credit Risk (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income (Loss) Per Share-Basic and Diluted
Income (loss) from continuing operations	$ 92,347	$ 92,263	$ 122,823	$ 131,652
Less: Net Income (Loss) Attributable to Noncontrolling Interests	34	142	925	610
Income (loss) from continuing operations (utilized in numerator of Earnings Per Share calculation)	92,313	92,121	121,898	131,042
Income (loss) from discontinued operations, net of tax	128	(360)	104	(822)
Net Income (Loss) Attributable to Iron Mountain Incorporated	$ 92,441	$ 91,761	$ 122,002	$ 130,220
Weighted-average shares—basic (in shares)	286,925,000	285,984,000	286,727,000	285,622,000
Effect of dilutive potential stock options (in shares)	148,629	237,708	190,016	243,636
Effect of dilutive potential restricted stock, RSUs and PUs (in shares)	407,659	347,543	570,040	415,929
Weighted-average shares—diluted (in shares)	287,481,288	286,569,251	287,487,056	286,281,565
Earnings (losses) per share—basic:
Income (loss) from continuing operations (in dollars per share)	$ 0.32	$ 0.32	$ 0.43	$ 0.46
Income (loss) from discontinued operations, net of tax (in dollars per share)	0	0	0	0
Net income (loss) attributable to Iron Mountain Incorporated (in dollars per share)	0.32	0.32	0.43	0.46
Earnings (losses) per share—diluted:
Income (loss) from continuing operations (in dollars per share)	0.32	0.32	0.42	0.46
Income (loss) from discontinued operations, net of tax (in dollars per share)	0	0	0	0
Net income (loss) attributable to Iron Mountain Incorporated (in dollars per share)	$ 0.32	$ 0.32	$ 0.42	$ 0.45
Antidilutive stock options, RSUs and PUs, excluded from the calculation (in shares)	5,004,112	3,272,502	4,494,637	3,257,322

Summary of Significant Accou_21

Summary of Significant Accounting Policies - Effective Income Tax Rates (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Accounting Policies [Abstract]
Effective Tax Rate	10.30%	22.00%	14.70%	16.50%
Federal statutory tax rate			21.00%	21.00%
Discrete tax benefit				$ 14,000

Summary of Significant Accou_22

Summary of Significant Accounting Policies - Fair Value Measurements (Details) € in Thousands	Jun. 30, 2019USD ($)	Jun. 30, 2019EUR (€)	Dec. 31, 2018USD ($)	Dec. 31, 2018EUR (€)	Jun. 30, 2018EUR (€)
Assets and Liabilities Carried at Fair Value Measured on a Recurring Basis [Line Items]
Derivative, amount of hedged item | €		€ 274,161			€ 179,881
Fair value measured on recurring basis | Quoted prices in active markets (Level 1)
Assets and Liabilities Carried at Fair Value Measured on a Recurring Basis [Line Items]
Money Market Funds	$ 0
Time Deposits			$ 0
Trading securities	9,744,000		10,248,000
Derivative Assets			0
Interest Rate Swap Agreements Liabilities	0		0
Fair value measured on recurring basis | Significant other observable inputs (Level 2)
Assets and Liabilities Carried at Fair Value Measured on a Recurring Basis [Line Items]
Money Market Funds	4,418,000
Time Deposits			956,000
Trading securities	622,000		505,000
Derivative Assets			93,000
Interest Rate Swap Agreements Liabilities	8,578,000		973,000
Fair value measured on recurring basis | Significant unobservable inputs (Level 3)
Assets and Liabilities Carried at Fair Value Measured on a Recurring Basis [Line Items]
Money Market Funds	0
Time Deposits			0
Trading securities	0		0
Derivative Assets			0
Interest Rate Swap Agreements Liabilities	0		0
Estimate of Fair Value Measurement | Fair value measured on recurring basis
Assets and Liabilities Carried at Fair Value Measured on a Recurring Basis [Line Items]
Money Market Funds	4,418,000
Time Deposits			956,000
Trading securities	10,366,000		10,753,000
Derivative Assets			93,000
Interest Rate Swap Agreements Liabilities	8,578,000		973,000
Designated as Hedging Instrument | Interest Rate Swap
Assets and Liabilities Carried at Fair Value Measured on a Recurring Basis [Line Items]
Notional amount of derivatives	$ 350,000,000		350,000,000
Long | Foreign exchange contracts
Assets and Liabilities Carried at Fair Value Measured on a Recurring Basis [Line Items]
Notional amount of derivatives | €				€ 29,000
Short | Foreign exchange contracts
Assets and Liabilities Carried at Fair Value Measured on a Recurring Basis [Line Items]
Derivative, amount of hedged item			$ 33,374,000

Summary of Significant Accou_23

Summary of Significant Accounting Policies - Accumulated Other Comprehensive Income and Other Expenses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
AOCI Rollforward
Beginning of Period			$ 1,861,054
Other comprehensive (loss) income:
Fair value adjustments for interest rate swap agreements	$ (4,931)	$ 2,388	(7,605)	$ 2,203
End of Period	1,657,821		1,657,821
Foreign Currency Translation Adjustments
AOCI Rollforward
Beginning of Period	(247,313)	(73,897)	(264,691)	(103,989)
Other comprehensive (loss) income:
Foreign currency translation adjustments	(5,930)	(135,756)	11,448	(105,664)
Fair value adjustments for interest rate swap agreements	0	0	0	0
Total other comprehensive (loss) income	(5,930)	(135,756)	11,448	(105,664)
End of Period	(253,243)	(209,653)	(253,243)	(209,653)
Fair Value Adjustments for Interest Rate Swap Agreements
AOCI Rollforward
Beginning of Period	(3,647)	(185)	(973)	0
Other comprehensive (loss) income:
Foreign currency translation adjustments	0	0	0	0
Fair value adjustments for interest rate swap agreements	(4,931)	2,388	(7,605)	2,203
Total other comprehensive (loss) income	(4,931)	2,388	(7,605)	2,203
End of Period	(8,578)	2,203	(8,578)	2,203
Total
AOCI Rollforward
Beginning of Period	(250,960)	(74,082)	(265,664)	(103,989)
Other comprehensive (loss) income:
Foreign currency translation adjustments	(5,930)	(135,756)	11,448	(105,664)
Fair value adjustments for interest rate swap agreements	(4,931)	2,388	(7,605)	2,203
Total other comprehensive (loss) income	(10,861)	(133,368)	3,843	(103,461)
End of Period	$ (261,821)	$ (207,450)	$ (261,821)	$ (207,450)

Summary of Significant Accou_24

Summary of Significant Accounting Policies - AOCI Foreign Exchange (Details) € in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2019EUR (€)	Jun. 30, 2018EUR (€)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Derivative, amount of hedged item (in Euros) | €					€ 274,161	€ 179,881
Senior Notes
Accumulated Other Comprehensive Income (Loss) [Line Items]
Foreign currency translation adjustments gains (losses)	$ (4,280)	$ 10,257	$ 1,861	$ 4,622
Net Investment Hedging [Member] | Senior Notes
Accumulated Other Comprehensive Income (Loss) [Line Items]
Foreign currency translation adjustments gains (losses)			$ 16,119

Summary of Significant Accou_25

Summary of Significant Accounting Policies - Gain on Disposal/Write-Down of Property, Plant and Equipment, (net) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment of long lived assets	$ 24,000
Gain loss on disposal/write-down of property, plant and equipment, net	$ 8,405	$ 546	$ 7,803	$ 1,676
United Kingdom | Disposed of by sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of real estate, net of tax			36,000
North American Records and Information Management Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment of long lived assets			$ 3,100

Summary of Significant Accou_26

Summary of Significant Accounting Policies - Other Expense (Income), Net - Foreign Currency Transactions (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Foreign currency transaction (gains) losses, net	$ (19,331)		$ (18,624)	$ (1,634)	$ 3,161
Other, net	4,139		(432)	1,652	(2,066)
Total	$ (15,192)		$ (19,056)	$ 18	$ 1,095
Disposal Group, Not Discontinued Operations | Consumer Storage
Reclassification Adjustment out of Accumulated Other Comprehensive Income on Derivatives [Line Items]
Gain on Disposal		$ 4,200

Summary of Significant Accou_27

Summary of Significant Accounting Policies - Correction in Presentation (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2018	Sep. 30, 2018
Accounting Policies [Abstract]
Gain on sale of real estate	$ 55,000	$ 55,000

Summary of Significant Accou_28

Summary of Significant Accounting Policies - Immaterial Restatement Narrative (Details) € in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2019EUR (€)	Mar. 31, 2019USD ($)	Jun. 30, 2018USD ($)	Mar. 31, 2018USD ($)
Error Corrections and Prior Period Adjustments Restatement [Line Items]
(Distributions in excess of earnings) Earnings in excess of distributions	$ (2,139,493)		$ (2,364,812)
Foreign | Tax and Customs Administration, Netherlands
Error Corrections and Prior Period Adjustments Restatement [Line Items]
VAT liability | €				€ 16,800
Selling, General and Administrative Expenses
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Overstated (understated) misstatement amount	(11,000)	$ (16,600)
Interest Expense
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Overstated (understated) misstatement amount	(400)	(100)
Provision for Income Taxes
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Overstated (understated) misstatement amount	2,000	3,000
Net Income from Continuing Operations
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Overstated (understated) misstatement amount	(9,400)	(13,700)
Restatement
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Retained earnings	23,100
(Distributions in excess of earnings) Earnings in excess of distributions	$ (23,126)	$ (13,708)			$ (23,126)	$ (21,573)	$ (19,933)

Summary of Significant Accou_29

Summary of Significant Accounting Policies - Immaterial Restatements (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018	Dec. 31, 2017
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Selling, general and administrative	$ 252,764	$ 252,225	$ 523,323	$ 529,395
Total Operating Expenses	873,792	859,363	1,768,980	1,744,702
Operating Income (Loss)	193,115	201,460	351,790	358,579
Interest Expense, Net	(105,314)	(102,196)	(207,750)	(199,898)
Income (Loss) from Continuing Operations Before Provision (Benefit) for Income Taxes	102,993	118,320	144,022	157,586
Provision (Benefit) for Income Taxes	10,646	26,057	21,199	25,934
Income (Loss) from Continuing Operations	92,347	92,263	122,823	131,652
Net Income (Loss)	92,475	91,903	122,927	130,830
Net Income (Loss) Attributable to Iron Mountain Incorporated	$ 92,441	$ 91,761	$ 122,002	$ 130,220
Income (Loss) from Continuing Operations (in dollars per share)	$ 0.32	$ 0.32	$ 0.43	$ 0.46
Net Income (Loss) Attributable to Iron Mountain Incorporated (in dollars per share)	0.32	0.32	0.43	0.46
Income (Loss) from Continuing Operations (in dollars per share)	0.32	0.32	0.42	0.46
Net Income (Loss) Attributable to Iron Mountain Incorporated (in dollars per share)	$ 0.32	$ 0.32	$ 0.42	$ 0.45
Total Other Assets, Net	$ 7,947,320		$ 7,947,320			$ 6,159,547
Total Assets	13,720,982	$ 11,817,159	13,720,982	$ 11,817,159		11,857,218
Accrued expenses and other current liabilities	920,493		920,493			780,781
Total Current Liabilities	1,616,787		1,616,787			1,490,775
(Distributions in excess of earnings) Earnings in excess of distributions	(2,364,812)		(2,364,812)			(2,139,493)
Total Iron Mountain Incorporated Stockholders' Equity	$ 1,657,821		$ 1,657,821			1,861,054
Restatement
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Selling, general and administrative		1,899		9,339
Total Operating Expenses		1,899		9,339
Operating Income (Loss)		(1,899)		(9,339)
Interest Expense, Net		89		165
Income (Loss) from Continuing Operations Before Provision (Benefit) for Income Taxes		(1,988)		(9,504)
Provision (Benefit) for Income Taxes		(348)		(1,639)
Income (Loss) from Continuing Operations		(1,640)		(7,865)
Net Income (Loss)		(1,640)		(7,865)
Net Income (Loss) Attributable to Iron Mountain Incorporated		$ (1,640)		$ (7,865)
Income (Loss) from Continuing Operations (in dollars per share)		$ (0.01)		$ (0.03)
Net Income (Loss) Attributable to Iron Mountain Incorporated (in dollars per share)		(0.01)		(0.03)
Income (Loss) from Continuing Operations (in dollars per share)		(0.01)		(0.03)
Net Income (Loss) Attributable to Iron Mountain Incorporated (in dollars per share)		$ (0.01)		$ (0.03)
Total Other Assets, Net						4,971
Total Assets						4,971
Accrued expenses and other current liabilities						28,097
Total Current Liabilities						28,097
(Distributions in excess of earnings) Earnings in excess of distributions		$ (21,573)		$ (21,573)	$ (23,126)	(23,126)	$ (19,933)	$ (13,708)
Total Iron Mountain Incorporated Stockholders' Equity						$ (23,126)

Acquisitions - Narrative (Detai

Acquisitions - Narrative (Details) $ in Thousands	Jan. 10, 2018USD ($)	Feb. 28, 2019USD ($)	Jun. 30, 2019USD ($)company
Storage and Data Management Company
Business Acquisition [Line Items]
Number of businesses acquired | company			6
Art Storage Company
Business Acquisition [Line Items]
Number of businesses acquired | company			1
Storage, Records Management and Art Storage Companies
Business Acquisition [Line Items]
Cash consideration			$ 36,800
IO Data Center LLC
Business Acquisition [Line Items]
Consideration transferred	$ 1,347,000	$ 31,000
Business combination separately recognized transactions expenses and losses recognized, acquisition costs incurred to date			$ 28,064

Acquisitions - Schedule of Purc

Acquisitions - Schedule of Purchase Price Allocation (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jan. 01, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Purchase Price Holdbacks and Other	$ 2,394	$ 26,089
Fair Value of Identifiable Assets Acquired:
Operating Lease Right-of-Use Assets	1,793,807		$ 1,825,721	$ 0
Operating Lease Liabilities	(1,655,477)		$ (1,685,771)	0
Goodwill Initially Recorded	4,473,424			$ 4,441,030
2019 Acquisitions
Business Acquisition [Line Items]
Cash Paid (gross of cash acquired)	39,072
Purchase Price Holdbacks and Other	2,394
Total Consideration	41,466
Fair Value of Identifiable Assets Acquired:
Cash	2,285
Accounts Receivable, Prepaid Expenses and Other Assets	3,164
Property, Plant and Equipment	4,538
Customer Relationship Intangible Assets	15,670
Operating Lease Right-of-Use Assets	13,256
Accounts Payable, Accrued Expenses and Other Liabilities	(2,124)
Operating Lease Liabilities	(13,256)
Deferred Income Taxes	(1,628)
Total Fair Value of Identifiable Net Assets Acquired	21,905
Goodwill Initially Recorded	19,561
Net cash acquired	2,285
Payments for previous acquisitions	$ 7,864

Acquisitions - Pro Forma Financ

Acquisitions - Pro Forma Financial Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018
Business Combinations [Abstract]
Total Revenues	$ 1,060,823	$ 2,106,771
Income from Continuing Operations	$ 92,263	$ 141,604
Per Share Income from Continuing Operations - Basic (in dollars per share)	$ 0.32	$ 0.49
Per Share Income from Continuing Operations - Diluted (in dollars per share)	$ 0.32	$ 0.49

Debt - Schedule of Long Term De

Debt - Schedule of Long Term Debt (Details) € in Thousands, $ in Thousands, $ in Thousands, $ in Thousands	Jun. 30, 2019USD ($)	Jun. 30, 2019CAD ($)	Jun. 30, 2019AUD ($)	Jun. 30, 2019EUR (€)	Dec. 31, 2018USD ($)	Mar. 22, 2018USD ($)
Debt Instrument [Line Items]
Debt (inclusive of discount)	$ 8,592,918				$ 8,229,430
Long-term debt, gross, current maturities	(123,527)				(126,406)
Long term debt, gross, net of current portion	8,469,391				8,103,024
Unamortized Deferred Financing Costs	(79,208)				(86,607)
Unamortized debt issuance expense, current	0				0
Unamortized debt issuance expense, net	(79,208)				(86,607)
Carrying Amount	8,513,710				8,142,823
Carrying Amount, current maturities	(123,527)				(126,406)
Carrying Amount, excluding current maturities	8,390,183				8,016,417
Revolving Credit Facility
Debt Instrument [Line Items]
Letters of credit outstanding	35,250
Remaining capacity	533,374
Australian Dollar Term Loan
Debt Instrument [Line Items]
Debt (inclusive of discount)	230,048				233,955
Unamortized Deferred Financing Costs	(2,691)				(3,084)
Carrying Amount	227,357		$ 329,688		230,871
Fair Value	$ 231,506				235,645
Average interest rate (as a percent)	5.10%	5.10%	5.10%	5.10%
Debt instrument, unamortized discount	$ 1,458				1,690
Senior Notes 4.375 Percent due 2021
Debt Instrument [Line Items]
Debt (inclusive of discount)	500,000				500,000
Unamortized Deferred Financing Costs	(3,295)				(4,155)
Carrying Amount	496,705				495,845
Fair Value	$ 505,000				488,750
Stated interest rate (as a percent)	4.375%	4.375%	4.375%	4.375%
6% Notes
Debt Instrument [Line Items]
Debt (inclusive of discount)	$ 600,000				600,000
Unamortized Deferred Financing Costs	(4,576)				(5,126)
Carrying Amount	595,424				594,874
Fair Value	$ 612,000				606,000
Stated interest rate (as a percent)	6.00%	6.00%	6.00%	6.00%
CAD 5.375 Percent Senior Notes due 2023
Debt Instrument [Line Items]
Debt (inclusive of discount)	$ 190,972				183,403
Unamortized Deferred Financing Costs	(2,335)				(2,506)
Carrying Amount	188,637				180,897
Fair Value	$ 192,882				186,154
Stated interest rate (as a percent)	5.375%	5.375%	5.375%	5.375%
The 5 3/4% Notes
Debt Instrument [Line Items]
Debt (inclusive of discount)	$ 1,000,000				1,000,000
Unamortized Deferred Financing Costs	(7,096)				(7,782)
Carrying Amount	992,904				992,218
Fair Value	$ 1,010,000				940,000
Stated interest rate (as a percent)	5.75%	5.75%	5.75%	5.75%
Euro Notes 3 Percent due 2025
Debt Instrument [Line Items]
Debt (inclusive of discount)	$ 341,128				343,347
Unamortized Deferred Financing Costs	(3,781)				(4,098)
Carrying Amount	337,347				339,249
Fair Value	$ 351,113				321,029
Stated interest rate (as a percent)	3.00%	3.00%	3.00%	3.00%
GBP Notes due 2025 3.875 Percent
Debt Instrument [Line Items]
Debt (inclusive of discount)	$ 507,891				509,425
Unamortized Deferred Financing Costs	(6,074)				(6,573)
Carrying Amount	501,817				502,852
Fair Value	$ 502,192				453,811
Stated interest rate (as a percent)	3.875%	3.875%	3.875%	3.875%
Senior Notes 5.375 Percent due 2026
Debt Instrument [Line Items]
Debt (inclusive of discount)	$ 250,000				250,000
Unamortized Deferred Financing Costs	(2,971)				(3,185)
Carrying Amount	247,029				246,815
Fair Value	$ 252,500				224,375
Stated interest rate (as a percent)	5.375%	5.375%	5.375%	5.375%
Senior Notes 4.875 Percent due 2027
Debt Instrument [Line Items]
Debt (inclusive of discount)	$ 1,000,000				1,000,000
Unamortized Deferred Financing Costs	(11,731)				(12,442)
Carrying Amount	988,269				987,558
Fair Value	$ 990,000				855,000
Stated interest rate (as a percent)	4.875%	4.875%	4.875%	4.875%
Senior Notes due 2028 5.25 Percent
Debt Instrument [Line Items]
Debt (inclusive of discount)	$ 825,000				825,000
Unamortized Deferred Financing Costs	(10,333)				(10,923)
Carrying Amount	814,667				814,077
Fair Value	$ 825,000				713,625
Stated interest rate (as a percent)	5.25%	5.25%	5.25%	5.25%
Real Estate Mortgages, Capital Leases and Other
Debt Instrument [Line Items]
Debt (inclusive of discount)	$ 559,622				606,702
Unamortized Deferred Financing Costs	(425)				(171)
Carrying Amount	559,197				606,531
Fair Value	559,622				606,702
Accounts Receivable Securitization Program
Debt Instrument [Line Items]
Debt (inclusive of discount)	254,962				221,673
Unamortized Deferred Financing Costs	(149)				(218)
Carrying Amount	254,813				221,455
Fair Value	$ 254,962				221,673
Average interest rate (as a percent)	3.40%	3.40%	3.40%	3.40%
Mortgage Securitization Program
Debt Instrument [Line Items]
Debt (inclusive of discount)	$ 50,000				50,000
Unamortized Deferred Financing Costs	(1,055)				(1,128)
Carrying Amount	48,945				48,872
Fair Value	$ 50,000				50,000
Average interest rate (as a percent)	3.50%	3.50%	3.50%	3.50%
New Credit Agreement
Debt Instrument [Line Items]
Average interest rate (as a percent)	4.00%	4.00%	4.00%	4.00%
New Credit Agreement | Revolving Credit Facility
Debt Instrument [Line Items]
Debt (inclusive of discount)	$ 1,181,376				793,832
Unamortized Deferred Financing Costs	(12,548)				(14,117)
Carrying Amount	1,168,828				779,715
Fair Value	$ 1,181,376				793,832
Average interest rate (as a percent)	4.00%	4.00%	4.00%	4.00%
Term Loan A | Term Loan Facility
Debt Instrument [Line Items]
Debt (inclusive of discount)	$ 234,375				240,625
Unamortized Deferred Financing Costs	0				0
Carrying Amount	234,375				240,625
Fair Value	$ 234,375				240,625
Average interest rate (as a percent)	4.20%	4.20%	4.20%	4.20%
Term Loan B | Term Loan Facility
Debt Instrument [Line Items]
Debt (inclusive of discount)	$ 689,782				693,169
Unamortized Deferred Financing Costs	(8,118)				(8,742)
Carrying Amount	681,664				684,427
Fair Value	$ 668,784				660,013
Average interest rate (as a percent)	4.20%	4.20%	4.20%	4.20%
Debt instrument, unamortized discount	$ 1,468				1,581
UK Bilateral Revolving Credit Facility | Revolving Credit Facility
Debt Instrument [Line Items]
Debt (inclusive of discount)	177,762				178,299
Unamortized Deferred Financing Costs	(2,030)				(2,357)
Carrying Amount	175,732				175,942
Fair Value	$ 177,762				$ 178,299
Line of credit facility, interest rate at period end	3.10%	3.10%	3.10%	3.10%
Term Loan Facility | Term Loan B | Loans Payable
Debt Instrument [Line Items]
Maximum borrowing capacity						$ 700,000
US Dollars | New Credit Agreement | Term Loan Facility
Debt Instrument [Line Items]
Debt (inclusive of discount)	$ 1,028,900
Canadian dollars | New Credit Agreement | Term Loan Facility
Debt Instrument [Line Items]
Debt (inclusive of discount)		$ 76,800
Euro | New Credit Agreement | Term Loan Facility
Debt Instrument [Line Items]
Debt (inclusive of discount) | €				€ 82,500

Debt - Cash Pool (Details)

Debt - Cash Pool (Details) $ in Thousands	Jun. 30, 2019USD ($)cash_pool	Dec. 31, 2018USD ($)
Debt Instrument [Line Items]
Number of cash pools | cash_pool	2
QRS Cash Pool
Debt Instrument [Line Items]
Number of cash pools | cash_pool	1
Gross Cash Position	$ 308,200	$ 300,800
Outstanding Debit Balances	(306,500)	(298,800)
Net Cash Position	$ 1,700	2,000
TRS Cash Pool
Debt Instrument [Line Items]
Number of cash pools | cash_pool	1
Gross Cash Position	$ 295,500	281,500
Outstanding Debit Balances	(292,700)	(279,300)
Net Cash Position	$ 2,800	$ 2,200

Debt - Covenant Ratios (Details

Debt - Covenant Ratios (Details)	Jun. 30, 2019	Dec. 31, 2018
Credit Agreement
Debt Instrument [Line Items]
Net total lease adjusted leverage ratio	5.8	5.6
Net secured debt lease adjusted leverage ratio	2.8	2.6
Bond leverage ratio (not lease adjusted)	6.1	5.8
Fixed charge coverage ratio	2.2	2.2
Credit Agreement | Maximum
Debt Instrument [Line Items]
Net total lease adjusted leverage ratio	6.5
Net secured debt lease adjusted leverage ratio	4
Bond leverage ratio (not lease adjusted)	7
Credit Agreement | Minimum
Debt Instrument [Line Items]
Bond leverage ratio (not lease adjusted)	6.5
Fixed charge coverage ratio	1.5
Senior Notes | Maximum
Debt Instrument [Line Items]
Bond leverage ratio (not lease adjusted)	6.5
Senior Notes 4.875 Percent due 2027, GBP Notes due 2025 and 5.25 Percent Notes
Debt Instrument [Line Items]
Debt instrument covenant, indenture, leverage ratio maximum	7

Selected Consolidated Financi_3

Selected Consolidated Financial Statements of Parent, Guarantors and Non-Guarantors - Narrative (Details) - 5.375% Senior Notes	Jun. 30, 2019
Guarantors
Debt Instrument [Line Items]
Stated interest rate (as a percent)	5.375%
Non- Guarantors
Debt Instrument [Line Items]
Stated interest rate (as a percent)	5.375%

Selected Consolidated Financi_4

Selected Consolidated Financial Statements of Parent, Guarantors and Non-Guarantors - Balance Sheets (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Mar. 31, 2019	Jan. 01, 2019	Dec. 31, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
Current Assets:
Cash and cash equivalents	$ 161,996			$ 165,485
Accounts receivable	852,330			846,889
Intercompany receivable	0			0
Prepaid expenses and other	200,777			195,740
Total Current Assets	1,215,103			1,208,114
Property, Plant and Equipment, Net	4,558,559			4,489,557
Other Assets, Net:
Long-term notes receivable from affiliates and intercompany receivable	0			0
Investment in subsidiaries	0			0
Goodwill	4,473,424			4,441,030
Operating lease right-of-use assets (see Note 2.d.)	1,793,807		$ 1,825,721	0
Other	1,680,089			1,718,517
Total Other Assets, Net	7,947,320			6,159,547
Total Assets	13,720,982			11,857,218	$ 11,817,159
Liabilities and Equity
Intercompany Payable	0			0
Debit Balances Under Cash Pools	0			0
Current Portion of Long-Term Debt	123,527			126,406
Total Other Current Liabilities (includes current portion of operating lease liabilities)	1,493,260			1,364,369
Long-Term Debt, Net of Current Portion	8,390,183			8,016,417
Long-term Operating Lease Liabilities, net of current portion (see Note 2.d.)	1,655,477		$ 1,685,771	0
Long-Term Notes Payable to Affiliates and Intercompany Payable	0			0
Other Long-term Liabilities	326,441			417,031
Redeemable Noncontrolling Interests	73,113			70,532
Total Iron Mountain Incorporated Stockholders' Equity	1,657,821			1,861,054
Noncontrolling Interests	1,160			1,409
Total Equity	1,658,981	$ 1,737,608		1,862,463	$ 2,035,874	$ 2,241,342	$ 2,285,134
Total Liabilities and Equity	13,720,982			11,857,218
Eliminations
Current Assets:
Cash and cash equivalents	(69,486)			(65,615)
Accounts receivable	0			0
Intercompany receivable	(1,184,345)			(818,463)
Prepaid expenses and other	(29)			(29)
Total Current Assets	(1,253,860)			(884,107)
Property, Plant and Equipment, Net	0			0
Other Assets, Net:
Long-term notes receivable from affiliates and intercompany receivable	(5,072,926)			(4,954,686)
Investment in subsidiaries	(3,055,929)			(2,845,066)
Goodwill	0			0
Operating lease right-of-use assets (see Note 2.d.)	0
Other	0			0
Total Other Assets, Net	(8,128,855)			(7,799,752)
Total Assets	(9,382,715)			(8,683,859)
Liabilities and Equity
Intercompany Payable	(1,184,345)			(818,463)
Debit Balances Under Cash Pools	(69,486)			(65,615)
Current Portion of Long-Term Debt	(29)			(29)
Total Other Current Liabilities (includes current portion of operating lease liabilities)	0			0
Long-Term Debt, Net of Current Portion	0			0
Long-term Operating Lease Liabilities, net of current portion (see Note 2.d.)	0
Long-Term Notes Payable to Affiliates and Intercompany Payable	(5,072,926)			(4,954,686)
Other Long-term Liabilities	0			0
Redeemable Noncontrolling Interests	0			0
Total Iron Mountain Incorporated Stockholders' Equity	(3,055,929)			(2,845,066)
Noncontrolling Interests	0			0
Total Equity	(3,055,929)			(2,845,066)
Total Liabilities and Equity	(9,382,715)			(8,683,859)
Parent | Reportable legal entities
Current Assets:
Cash and cash equivalents	6			132
Accounts receivable	0			0
Intercompany receivable	0			0
Prepaid expenses and other	0			93
Total Current Assets	6			225
Property, Plant and Equipment, Net	145			190
Other Assets, Net:
Long-term notes receivable from affiliates and intercompany receivable	5,072,926			4,954,686
Investment in subsidiaries	1,982,052			1,862,048
Goodwill	0			0
Operating lease right-of-use assets (see Note 2.d.)	0
Other	2			0
Total Other Assets, Net	7,054,980			6,816,734
Total Assets	7,055,131			6,817,149
Liabilities and Equity
Intercompany Payable	892,894			462,927
Debit Balances Under Cash Pools	0			0
Current Portion of Long-Term Debt	0			0
Total Other Current Liabilities (includes current portion of operating lease liabilities)	270,521			268,373
Long-Term Debt, Net of Current Portion	4,225,317			4,223,822
Long-term Operating Lease Liabilities, net of current portion (see Note 2.d.)	0
Long-Term Notes Payable to Affiliates and Intercompany Payable	0			0
Other Long-term Liabilities	8,578			973
Redeemable Noncontrolling Interests	0			0
Total Iron Mountain Incorporated Stockholders' Equity	1,657,821			1,861,054
Noncontrolling Interests	0			0
Total Equity	1,657,821			1,861,054
Total Liabilities and Equity	7,055,131			6,817,149
Guarantors
Current Assets:
Deposits	74,000			57,200
Guarantors | Reportable legal entities
Current Assets:
Cash and cash equivalents	124,553			61,650
Accounts receivable	65,357			47,900
Intercompany receivable	1,184,345			818,463
Prepaid expenses and other	87,505			108,879
Total Current Assets	1,461,760			1,036,892
Property, Plant and Equipment, Net	3,013,538			3,002,104
Other Assets, Net:
Long-term notes receivable from affiliates and intercompany receivable	0			0
Investment in subsidiaries	1,073,877			983,018
Goodwill	2,857,968			2,858,539
Operating lease right-of-use assets (see Note 2.d.)	921,540
Other	965,060			979,483
Total Other Assets, Net	5,818,445			4,821,040
Total Assets	10,293,743			8,860,036
Liabilities and Equity
Intercompany Payable	0			0
Debit Balances Under Cash Pools	0			10,612
Current Portion of Long-Term Debt	54,848			63,703
Total Other Current Liabilities (includes current portion of operating lease liabilities)	679,750			616,826
Long-Term Debt, Net of Current Portion	2,265,699			1,877,649
Long-term Operating Lease Liabilities, net of current portion (see Note 2.d.)	857,375
Long-Term Notes Payable to Affiliates and Intercompany Payable	5,072,926			4,954,686
Other Long-term Liabilities	51,721			115,994
Redeemable Noncontrolling Interests	0			0
Total Iron Mountain Incorporated Stockholders' Equity	1,311,424			1,220,566
Noncontrolling Interests	0			0
Total Equity	1,311,424			1,220,566
Total Liabilities and Equity	10,293,743			8,860,036
Non- Guarantors
Current Assets:
Deposits	0			12,700
Non- Guarantors | Reportable legal entities
Current Assets:
Cash and cash equivalents	106,923			169,318
Accounts receivable	786,973			798,989
Intercompany receivable	0			0
Prepaid expenses and other	113,301			86,797
Total Current Assets	1,007,197			1,055,104
Property, Plant and Equipment, Net	1,544,876			1,487,263
Other Assets, Net:
Long-term notes receivable from affiliates and intercompany receivable	0			0
Investment in subsidiaries	0			0
Goodwill	1,615,456			1,582,491
Operating lease right-of-use assets (see Note 2.d.)	872,267
Other	715,027			739,034
Total Other Assets, Net	3,202,750			2,321,525
Total Assets	5,754,823			4,863,892
Liabilities and Equity
Intercompany Payable	291,451			355,536
Debit Balances Under Cash Pools	69,486			55,003
Current Portion of Long-Term Debt	68,708			62,732
Total Other Current Liabilities (includes current portion of operating lease liabilities)	542,989			479,170
Long-Term Debt, Net of Current Portion	1,899,167			1,914,946
Long-term Operating Lease Liabilities, net of current portion (see Note 2.d.)	798,102
Long-Term Notes Payable to Affiliates and Intercompany Payable	0			0
Other Long-term Liabilities	266,142			300,064
Redeemable Noncontrolling Interests	73,113			70,532
Total Iron Mountain Incorporated Stockholders' Equity	1,744,505			1,624,500
Noncontrolling Interests	1,160			1,409
Total Equity	1,745,665			1,625,909
Total Liabilities and Equity	$ 5,754,823			$ 4,863,892

Selected Consolidated Financi_5

Selected Consolidated Financial Statements of Parent, Guarantors and Non-Guarantors - Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Consolidating financial statements
Revenues	$ 1,066,907	$ 1,060,823	$ 2,120,770	$ 2,103,281
Intercompany	0	0	0	0
Operating Expenses:
Cost of sales (excluding depreciation and amortization)	465,102	451,464	926,646	900,185
Intercompany	0	0	0	0
Selling, general and administrative	252,764	252,225	523,323	529,395
Depreciation and amortization	164,331	156,220	326,814	316,798
(Gain) Loss on disposal/write-down of property, plant and equipment, net	(8,405)	(546)	(7,803)	(1,676)
Total Operating Expenses	873,792	859,363	1,768,980	1,744,702
Operating Income (Loss)	193,115	201,460	351,790	358,579
Interest Expense (Income), Net	105,314	102,196	207,750	199,898
Other Expense (Income), Net	(15,192)	(19,056)	18	1,095
(Loss) Income from Continuing Operations Before Provision (Benefit) for Income Taxes	102,993	118,320	144,022	157,586
Provision (Benefit) for Income Taxes	10,646	26,057	21,199	25,934
Equity in the (Earnings) Losses of Subsidiaries, Net of Tax	0	0	0	0
Income (Loss) from Continuing Operations	92,347	92,263	122,823	131,652
Income (Loss) from Discontinued Operations, Net of Tax	128	(360)	104	(822)
Net Income (Loss)	92,475	91,903	122,927	130,830
Less: Net Income (Loss) Attributable to Noncontrolling Interests	34	142	925	610
Net income (loss) attributable to Iron Mountain Incorporated	92,441	91,761	122,002	130,220
Net income (loss)	92,475	91,903	122,927	130,830
Other Comprehensive Income (Loss):
Foreign Currency Translation Adjustment	(5,791)	(139,172)	12,400	(107,521)
Change in Fair Value of Interest Rate Swap Agreements	(4,931)	2,388	(7,605)	2,203
Equity in Other Comprehensive Income (Loss) of Subsidiaries	0	0	0	0
Total Other Comprehensive (Loss) Income	(10,722)	(136,784)	4,795	(105,318)
Comprehensive Income (Loss)	81,753	(44,881)	127,722	25,512
Comprehensive Income (Loss) Attributable to Noncontrolling Interests	173	(3,274)	1,877	(1,247)
Comprehensive Income (Loss) Attributable to Iron Mountain Incorporated	81,580	(41,607)	125,845	26,759
Eliminations
Consolidating financial statements
Revenues	(5,698)	(5,521)	(11,775)	(11,217)
Intercompany	(5,698)	(5,521)	(11,775)	(11,217)
Operating Expenses:
Cost of sales (excluding depreciation and amortization)	0	0	0	0
Intercompany	(5,698)	(5,521)	(11,775)	(11,217)
Selling, general and administrative	0	0	0	0
Depreciation and amortization	0	0	0	0
(Gain) Loss on disposal/write-down of property, plant and equipment, net	0	0	0	0
Total Operating Expenses	(5,698)	(5,521)	(11,775)	(11,217)
Operating Income (Loss)	0	0	0	0
Interest Expense (Income), Net	0	0	0	0
Other Expense (Income), Net	0	0	0	0
(Loss) Income from Continuing Operations Before Provision (Benefit) for Income Taxes	0	0	0	0
Provision (Benefit) for Income Taxes	0	0	0	0
Equity in the (Earnings) Losses of Subsidiaries, Net of Tax	212,195	182,980	287,515	261,209
Income (Loss) from Continuing Operations	(212,195)	(182,980)	(287,515)	(261,209)
Income (Loss) from Discontinued Operations, Net of Tax	0	0	0	0
Net Income (Loss)	(212,195)	(182,980)	(287,515)	(261,209)
Less: Net Income (Loss) Attributable to Noncontrolling Interests	0	0	0	0
Net income (loss) attributable to Iron Mountain Incorporated	(212,195)	(182,980)	(287,515)	(261,209)
Net income (loss)	(212,195)	(182,980)	(287,515)	(261,209)
Other Comprehensive Income (Loss):
Foreign Currency Translation Adjustment	0	0	0	0
Change in Fair Value of Interest Rate Swap Agreements	0	0	0	0
Equity in Other Comprehensive Income (Loss) of Subsidiaries	529	275,878	(17,864)	201,810
Total Other Comprehensive (Loss) Income	529	275,878	(17,864)	201,810
Comprehensive Income (Loss)	(211,666)	92,898	(305,379)	(59,399)
Comprehensive Income (Loss) Attributable to Noncontrolling Interests	0	0	0	0
Comprehensive Income (Loss) Attributable to Iron Mountain Incorporated	(211,666)	92,898	(305,379)	(59,399)
Parent | Reportable legal entities
Consolidating financial statements
Revenues	0	0	0	0
Intercompany	0	0	0	0
Operating Expenses:
Cost of sales (excluding depreciation and amortization)	0	0	0	0
Intercompany	0	0	0	0
Selling, general and administrative	62	36	149	79
Depreciation and amortization	22	32	45	65
(Gain) Loss on disposal/write-down of property, plant and equipment, net	0	0	0	0
Total Operating Expenses	84	68	194	144
Operating Income (Loss)	(84)	(68)	(194)	(144)
Interest Expense (Income), Net	49,601	50,313	99,226	100,254
Other Expense (Income), Net	359	2,767	541	1,610
(Loss) Income from Continuing Operations Before Provision (Benefit) for Income Taxes	(50,044)	(53,148)	(99,961)	(102,008)
Provision (Benefit) for Income Taxes	0	0	0	0
Equity in the (Earnings) Losses of Subsidiaries, Net of Tax	(142,485)	(144,909)	(221,963)	(232,228)
Income (Loss) from Continuing Operations	92,441	91,761	122,002	130,220
Income (Loss) from Discontinued Operations, Net of Tax	0	0	0	0
Net Income (Loss)	92,441	91,761	122,002	130,220
Less: Net Income (Loss) Attributable to Noncontrolling Interests	0	0	0	0
Net income (loss) attributable to Iron Mountain Incorporated	92,441	91,761	122,002	130,220
Net income (loss)	92,441	91,761	122,002	130,220
Other Comprehensive Income (Loss):
Foreign Currency Translation Adjustment	(4,280)	10,257	1,861	4,622
Change in Fair Value of Interest Rate Swap Agreements	(4,931)	2,388	(7,605)	2,203
Equity in Other Comprehensive Income (Loss) of Subsidiaries	(1,650)	(146,018)	9,587	(110,286)
Total Other Comprehensive (Loss) Income	(10,861)	(133,373)	3,843	(103,461)
Comprehensive Income (Loss)	81,580	(41,612)	125,845	26,759
Comprehensive Income (Loss) Attributable to Noncontrolling Interests	0	0	0	0
Comprehensive Income (Loss) Attributable to Iron Mountain Incorporated	81,580	(41,612)	125,845	26,759
Guarantors | Reportable legal entities
Consolidating financial statements
Revenues	658,407	643,068	1,302,995	1,270,979
Intercompany	1,158	1,216	2,312	2,421
Operating Expenses:
Cost of sales (excluding depreciation and amortization)	260,675	251,360	523,812	497,523
Intercompany	4,540	4,305	9,463	8,796
Selling, general and administrative	173,443	167,739	361,265	353,087
Depreciation and amortization	104,594	96,170	207,548	198,616
(Gain) Loss on disposal/write-down of property, plant and equipment, net	26,786	(462)	27,360	(818)
Total Operating Expenses	570,038	519,112	1,129,448	1,057,204
Operating Income (Loss)	88,369	123,956	173,547	213,775
Interest Expense (Income), Net	8,640	3,005	12,697	1,497
Other Expense (Income), Net	4,487	6,575	5,014	8,135
(Loss) Income from Continuing Operations Before Provision (Benefit) for Income Taxes	75,242	114,376	155,836	204,143
Provision (Benefit) for Income Taxes	1,153	12,509	2,454	5,797
Equity in the (Earnings) Losses of Subsidiaries, Net of Tax	(69,710)	(38,071)	(65,552)	(28,981)
Income (Loss) from Continuing Operations	143,799	139,938	218,934	227,327
Income (Loss) from Discontinued Operations, Net of Tax	144	(273)	120	(695)
Net Income (Loss)	143,943	139,665	219,054	226,632
Less: Net Income (Loss) Attributable to Noncontrolling Interests	0	0	0	0
Net income (loss) attributable to Iron Mountain Incorporated	143,943	139,665	219,054	226,632
Net income (loss)	143,943	139,665	219,054	226,632
Other Comprehensive Income (Loss):
Foreign Currency Translation Adjustment	0	0	0	0
Change in Fair Value of Interest Rate Swap Agreements	0	0	0	0
Equity in Other Comprehensive Income (Loss) of Subsidiaries	1,121	(129,860)	8,277	(91,524)
Total Other Comprehensive (Loss) Income	1,121	(129,860)	8,277	(91,524)
Comprehensive Income (Loss)	145,064	9,805	227,331	135,108
Comprehensive Income (Loss) Attributable to Noncontrolling Interests	0	0	0	0
Comprehensive Income (Loss) Attributable to Iron Mountain Incorporated	145,064	9,805	227,331	135,108
Non- Guarantors | Reportable legal entities
Consolidating financial statements
Revenues	414,198	423,276	829,550	843,519
Intercompany	4,540	4,305	9,463	8,796
Operating Expenses:
Cost of sales (excluding depreciation and amortization)	204,427	200,104	402,834	402,662
Intercompany	1,158	1,216	2,312	2,421
Selling, general and administrative	79,259	84,450	161,909	176,229
Depreciation and amortization	59,715	60,018	119,221	118,117
(Gain) Loss on disposal/write-down of property, plant and equipment, net	(35,191)	(84)	(35,163)	(858)
Total Operating Expenses	309,368	345,704	651,113	698,571
Operating Income (Loss)	104,830	77,572	178,437	144,948
Interest Expense (Income), Net	47,073	48,878	95,827	98,147
Other Expense (Income), Net	(20,038)	(28,398)	(5,537)	(8,650)
(Loss) Income from Continuing Operations Before Provision (Benefit) for Income Taxes	77,795	57,092	88,147	55,451
Provision (Benefit) for Income Taxes	9,493	13,548	18,745	20,137
Equity in the (Earnings) Losses of Subsidiaries, Net of Tax	0	0	0	0
Income (Loss) from Continuing Operations	68,302	43,544	69,402	35,314
Income (Loss) from Discontinued Operations, Net of Tax	(16)	(87)	(16)	(127)
Net Income (Loss)	68,286	43,457	69,386	35,187
Less: Net Income (Loss) Attributable to Noncontrolling Interests	34	142	925	610
Net income (loss) attributable to Iron Mountain Incorporated	68,252	43,315	68,461	34,577
Net income (loss)	68,286	43,457	69,386	35,187
Other Comprehensive Income (Loss):
Foreign Currency Translation Adjustment	(1,511)	(149,429)	10,539	(112,143)
Change in Fair Value of Interest Rate Swap Agreements	0	0	0	0
Equity in Other Comprehensive Income (Loss) of Subsidiaries	0	0	0	0
Total Other Comprehensive (Loss) Income	(1,511)	(149,429)	10,539	(112,143)
Comprehensive Income (Loss)	66,775	(105,972)	79,925	(76,956)
Comprehensive Income (Loss) Attributable to Noncontrolling Interests	173	(3,274)	1,877	(1,247)
Comprehensive Income (Loss) Attributable to Iron Mountain Incorporated	66,602	(102,698)	78,048	(75,709)
Storage rental
Consolidating financial statements
Revenues	669,288	655,439	1,332,262	1,306,588
Storage rental | Eliminations
Consolidating financial statements
Revenues	0	0	0	0
Storage rental | Parent | Reportable legal entities
Consolidating financial statements
Revenues	0	0	0	0
Storage rental | Guarantors | Reportable legal entities
Consolidating financial statements
Revenues	411,159	397,449	814,900	793,925
Storage rental | Non- Guarantors | Reportable legal entities
Consolidating financial statements
Revenues	258,129	257,990	517,362	512,663
Service
Consolidating financial statements
Revenues	397,619	405,384	788,508	796,693
Service | Eliminations
Consolidating financial statements
Revenues	0	0	0	0
Service | Parent | Reportable legal entities
Consolidating financial statements
Revenues	0	0	0	0
Service | Guarantors | Reportable legal entities
Consolidating financial statements
Revenues	246,090	244,403	485,783	474,633
Service | Non- Guarantors | Reportable legal entities
Consolidating financial statements
Revenues	$ 151,529	$ 160,981	$ 302,725	$ 322,060

Selected Consolidated Financi_6

Selected Consolidated Financial Statements of Parent, Guarantors and Non-Guarantors - Statements of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Cash Flows from Operating Activities:
Cash Flows from Operating Activities—Continuing Operations			$ 429,731	$ 393,806
Cash Flows from Operating Activities—Discontinued Operations			0	(477)
Cash Flows from Operating Activities			429,731	393,329
Cash Flows from Investing Activities:
Capital expenditures	$ (182,366)	$ (121,996)	(367,131)	(217,601)
Cash paid for acquisitions, net of cash acquired	(5,228)	(237,895)	(44,651)	(1,666,869)
Intercompany loans to subsidiaries			0	0
Acquisitions of customer relationships, customer inducements and data center lease-based intangibles	(22,650)	(19,187)	(90,562)	(37,233)
Investments in joint ventures (see Note 9)			(19,222)	0
Proceeds from sales of property and equipment and other, net			46,832	207
Cash Flows from Investing Activities—Continuing Operations			(474,734)	(1,921,496)
Cash Flows from Investing Activities—Discontinued Operations			5,061	0
Cash Flows from Investing Activities			(469,673)	(1,921,496)
Cash Flows from Financing Activities:
Repayment of revolving credit facility, term loan facilities and other debt			(2,602,922)	(7,876,796)
Proceeds from revolving credit facility, term loan facilities and other debt			2,998,107	8,944,416
Debit (payments) balances under cash pools			0	0
Debt financing from (repayment to) and equity contribution from (distribution to) noncontrolling interests, net			(999)	(1,079)
Intercompany loans from parent			0	0
Parent cash dividends			(353,357)	(337,052)
Net (payments) proceeds associated with employee stock-based awards			(1,727)	(2,259)
Net proceeds associated with the Over-Allotment Option			0	76,192
Net proceeds associated with the At the Market (ATM) Program			0	8,716
Payment of debt financing and stock issuance costs			0	(13,385)
Cash Flows from Financing Activities - Continuing Operations			39,102	798,753
Cash Flows from Financing Activities - Discontinued Operations			0	0
Cash Flows from Financing Activities			39,102	798,753
Effect of Exchange Rates on Cash and Cash Equivalents			(2,649)	(8,093)
(Decrease) Increase in Cash and Cash Equivalents			(3,489)	(737,507)
Cash and Cash Equivalents, including Restricted Cash, Beginning of Period			165,485	925,699
Cash and Cash Equivalents, including Restricted Cash, End of Period	161,996	188,192	161,996	188,192
Eliminations
Cash Flows from Operating Activities:
Cash Flows from Operating Activities—Continuing Operations			0	0
Cash Flows from Operating Activities—Discontinued Operations			0	0
Cash Flows from Operating Activities			0	0
Cash Flows from Investing Activities:
Capital expenditures			0	0
Cash paid for acquisitions, net of cash acquired			0	0
Intercompany loans to subsidiaries			(440,970)	(389,515)
Acquisitions of customer relationships, customer inducements and data center lease-based intangibles			0	0
Investments in joint ventures (see Note 9)			0
Proceeds from sales of property and equipment and other, net			0	0
Cash Flows from Investing Activities—Continuing Operations			(440,970)	(389,515)
Cash Flows from Investing Activities—Discontinued Operations			0	0
Cash Flows from Investing Activities			(440,970)	(389,515)
Cash Flows from Financing Activities:
Repayment of revolving credit facility, term loan facilities and other debt			0	0
Proceeds from revolving credit facility, term loan facilities and other debt			0	0
Debit (payments) balances under cash pools			(3,871)	4,807
Debt financing from (repayment to) and equity contribution from (distribution to) noncontrolling interests, net			0	0
Intercompany loans from parent			440,970	389,515
Parent cash dividends			0	0
Net (payments) proceeds associated with employee stock-based awards			0	0
Net proceeds associated with the Over-Allotment Option				0
Net proceeds associated with the At the Market (ATM) Program				0
Payment of debt financing and stock issuance costs				0
Cash Flows from Financing Activities - Continuing Operations			437,099	394,322
Cash Flows from Financing Activities - Discontinued Operations			0	0
Cash Flows from Financing Activities			437,099	394,322
Effect of Exchange Rates on Cash and Cash Equivalents			0	0
(Decrease) Increase in Cash and Cash Equivalents			(3,871)	4,807
Cash and Cash Equivalents, including Restricted Cash, Beginning of Period			(65,615)	(94,726)
Cash and Cash Equivalents, including Restricted Cash, End of Period	(69,486)	(89,919)	(69,486)	(89,919)
Parent | Reportable legal entities
Cash Flows from Operating Activities:
Cash Flows from Operating Activities—Continuing Operations			(75,316)	(117,979)
Cash Flows from Operating Activities—Discontinued Operations			0	0
Cash Flows from Operating Activities			(75,316)	(117,979)
Cash Flows from Investing Activities:
Capital expenditures			0	0
Cash paid for acquisitions, net of cash acquired			0	0
Intercompany loans to subsidiaries			430,274	370,423
Acquisitions of customer relationships, customer inducements and data center lease-based intangibles			0	0
Investments in joint ventures (see Note 9)			0
Proceeds from sales of property and equipment and other, net			0	0
Cash Flows from Investing Activities—Continuing Operations			430,274	370,423
Cash Flows from Investing Activities—Discontinued Operations			0	0
Cash Flows from Investing Activities			430,274	370,423
Cash Flows from Financing Activities:
Repayment of revolving credit facility, term loan facilities and other debt			0	0
Proceeds from revolving credit facility, term loan facilities and other debt			0	0
Debit (payments) balances under cash pools			0	0
Debt financing from (repayment to) and equity contribution from (distribution to) noncontrolling interests, net			0	0
Intercompany loans from parent			0	0
Parent cash dividends			(353,357)	(337,052)
Net (payments) proceeds associated with employee stock-based awards			(1,727)	(2,259)
Net proceeds associated with the Over-Allotment Option				76,192
Net proceeds associated with the At the Market (ATM) Program				8,716
Payment of debt financing and stock issuance costs				(412)
Cash Flows from Financing Activities - Continuing Operations			(355,084)	(254,815)
Cash Flows from Financing Activities - Discontinued Operations			0	0
Cash Flows from Financing Activities			(355,084)	(254,815)
Effect of Exchange Rates on Cash and Cash Equivalents			0	0
(Decrease) Increase in Cash and Cash Equivalents			(126)	(2,371)
Cash and Cash Equivalents, including Restricted Cash, Beginning of Period			132	2,433
Cash and Cash Equivalents, including Restricted Cash, End of Period	6	62	6	62
Guarantors | Reportable legal entities
Cash Flows from Operating Activities:
Cash Flows from Operating Activities—Continuing Operations			397,474	409,167
Cash Flows from Operating Activities—Discontinued Operations			0	(477)
Cash Flows from Operating Activities			397,474	408,690
Cash Flows from Investing Activities:
Capital expenditures			(201,784)	(142,737)
Cash paid for acquisitions, net of cash acquired			(9,508)	(1,314,370)
Intercompany loans to subsidiaries			10,696	19,092
Acquisitions of customer relationships, customer inducements and data center lease-based intangibles			(68,153)	(24,922)
Investments in joint ventures (see Note 9)			(19,222)
Proceeds from sales of property and equipment and other, net			54	0
Cash Flows from Investing Activities—Continuing Operations			(287,917)	(1,462,937)
Cash Flows from Investing Activities—Discontinued Operations			2,564	0
Cash Flows from Investing Activities			(285,353)	(1,462,937)
Cash Flows from Financing Activities:
Repayment of revolving credit facility, term loan facilities and other debt			(837,712)	(3,657,315)
Proceeds from revolving credit facility, term loan facilities and other debt			1,209,304	4,531,603
Debit (payments) balances under cash pools			(10,612)	(7,657)
Debt financing from (repayment to) and equity contribution from (distribution to) noncontrolling interests, net			0	0
Intercompany loans from parent			(410,198)	(384,323)
Parent cash dividends			0	0
Net (payments) proceeds associated with employee stock-based awards			0	0
Net proceeds associated with the Over-Allotment Option				0
Net proceeds associated with the At the Market (ATM) Program				0
Payment of debt financing and stock issuance costs				(12,322)
Cash Flows from Financing Activities - Continuing Operations			(49,218)	469,986
Cash Flows from Financing Activities - Discontinued Operations			0	0
Cash Flows from Financing Activities			(49,218)	469,986
Effect of Exchange Rates on Cash and Cash Equivalents			0	0
(Decrease) Increase in Cash and Cash Equivalents			62,903	(584,261)
Cash and Cash Equivalents, including Restricted Cash, Beginning of Period			61,650	634,317
Cash and Cash Equivalents, including Restricted Cash, End of Period	124,553	50,056	124,553	50,056
Non- Guarantors | Reportable legal entities
Cash Flows from Operating Activities:
Cash Flows from Operating Activities—Continuing Operations			107,573	102,618
Cash Flows from Operating Activities—Discontinued Operations			0	0
Cash Flows from Operating Activities			107,573	102,618
Cash Flows from Investing Activities:
Capital expenditures			(165,347)	(74,864)
Cash paid for acquisitions, net of cash acquired			(35,143)	(352,499)
Intercompany loans to subsidiaries			0	0
Acquisitions of customer relationships, customer inducements and data center lease-based intangibles			(22,409)	(12,311)
Investments in joint ventures (see Note 9)			0
Proceeds from sales of property and equipment and other, net			46,778	207
Cash Flows from Investing Activities—Continuing Operations			(176,121)	(439,467)
Cash Flows from Investing Activities—Discontinued Operations			2,497	0
Cash Flows from Investing Activities			(173,624)	(439,467)
Cash Flows from Financing Activities:
Repayment of revolving credit facility, term loan facilities and other debt			(1,765,210)	(4,219,481)
Proceeds from revolving credit facility, term loan facilities and other debt			1,788,803	4,412,813
Debit (payments) balances under cash pools			14,483	2,850
Debt financing from (repayment to) and equity contribution from (distribution to) noncontrolling interests, net			(999)	(1,079)
Intercompany loans from parent			(30,772)	(5,192)
Parent cash dividends			0	0
Net (payments) proceeds associated with employee stock-based awards			0	0
Net proceeds associated with the Over-Allotment Option				0
Net proceeds associated with the At the Market (ATM) Program				0
Payment of debt financing and stock issuance costs				(651)
Cash Flows from Financing Activities - Continuing Operations			6,305	189,260
Cash Flows from Financing Activities - Discontinued Operations			0	0
Cash Flows from Financing Activities			6,305	189,260
Effect of Exchange Rates on Cash and Cash Equivalents			(2,649)	(8,093)
(Decrease) Increase in Cash and Cash Equivalents			(62,395)	(155,682)
Cash and Cash Equivalents, including Restricted Cash, Beginning of Period			169,318	383,675
Cash and Cash Equivalents, including Restricted Cash, End of Period	$ 106,923	$ 227,993	$ 106,923	$ 227,993

Segment Information - Additiona

Segment Information - Additional Information (Details)	12 Months Ended
	Dec. 31, 2018segment
Segment Reporting [Abstract]
Number of operating segments	6

Segment Information - Segment R

Segment Information - Segment Reporting Information by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Segment Information [Line Items]
Revenues	$ 1,066,907	$ 1,060,823	$ 2,120,770	$ 2,103,281
Depreciation and Amortization	164,331	156,220	326,814	316,798
Depreciation	113,722	111,501	228,333	224,933
Amortization	50,609	44,719	98,481	91,865
Adjusted EBITDA	350,942	367,555	675,448	703,130
Total Assets	13,720,982	11,817,159	13,720,982	11,817,159	$ 11,857,218
Expenditures for Segment Assets	210,244	379,078	502,344	1,921,703
Capital Expenditures (see Liquidity and Capital Resources section of Management's Discussion & Analysis of Financial Condition and Results of Operations)	182,366	121,996	367,131	217,601
Cash Paid for Acquisitions, Net of Cash Acquired	5,228	237,895	44,651	1,666,869
Acquisitions of Customer Relationships, Customer Inducements and Contract Fulfillment Costs	22,650	19,187	90,562	37,233
North American Records and Information Management Business
Segment Information [Line Items]
Revenues	539,273	539,080	1,066,653	1,065,923
Depreciation and Amortization	62,691	60,970	122,693	123,722
Depreciation	46,655	48,252	92,407	97,390
Amortization	16,036	12,718	30,286	26,332
Adjusted EBITDA	245,585	244,861	469,268	470,599
Total Assets	5,840,023	5,010,186	5,840,023	5,010,186
Expenditures for Segment Assets	46,545	41,364	102,810	84,545
Capital Expenditures (see Liquidity and Capital Resources section of Management's Discussion & Analysis of Financial Condition and Results of Operations)	28,596	25,122	57,284	54,992
Cash Paid for Acquisitions, Net of Cash Acquired	0	0	9,876	1,551
Acquisitions of Customer Relationships, Customer Inducements and Contract Fulfillment Costs	17,949	16,242	35,650	28,002
North American Data Management Business
Segment Information [Line Items]
Revenues	96,415	100,031	193,162	199,995
Depreciation and Amortization	10,100	9,538	20,302	19,642
Depreciation	7,818	7,217	15,831	15,240
Amortization	2,282	2,321	4,471	4,402
Adjusted EBITDA	53,068	55,280	103,620	109,132
Total Assets	877,777	829,682	877,777	829,682
Expenditures for Segment Assets	5,254	3,643	10,886	10,496
Capital Expenditures (see Liquidity and Capital Resources section of Management's Discussion & Analysis of Financial Condition and Results of Operations)	5,254	3,643	10,886	10,496
Cash Paid for Acquisitions, Net of Cash Acquired	0	0	0	0
Acquisitions of Customer Relationships, Customer Inducements and Contract Fulfillment Costs	0	0	0	0
Western European Business
Segment Information [Line Items]
Revenues	127,327	133,440	256,080	267,515
Depreciation and Amortization	14,328	17,500	29,585	35,056
Depreciation	10,476	11,821	21,423	24,579
Amortization	3,852	5,679	8,162	10,477
Adjusted EBITDA	44,163	46,594	83,372	90,560
Total Assets	1,406,937	1,344,699	1,406,937	1,344,699
Expenditures for Segment Assets	24,334	27,559	54,435	35,039
Capital Expenditures (see Liquidity and Capital Resources section of Management's Discussion & Analysis of Financial Condition and Results of Operations)	22,724	25,096	24,840	31,143
Cash Paid for Acquisitions, Net of Cash Acquired	366	0	11,850	0
Acquisitions of Customer Relationships, Customer Inducements and Contract Fulfillment Costs	1,244	2,463	17,745	3,896
Other International Business
Segment Information [Line Items]
Revenues	199,823	207,527	400,779	418,294
Depreciation and Amortization	30,760	30,364	61,359	62,237
Depreciation	17,833	18,199	36,051	37,263
Amortization	12,927	12,165	25,308	24,974
Adjusted EBITDA	58,749	60,452	116,873	121,199
Total Assets	2,703,347	2,247,071	2,703,347	2,247,071
Expenditures for Segment Assets	18,829	30,287	50,083	62,447
Capital Expenditures (see Liquidity and Capital Resources section of Management's Discussion & Analysis of Financial Condition and Results of Operations)	11,955	13,921	27,104	39,063
Cash Paid for Acquisitions, Net of Cash Acquired	4,862	16,188	19,405	19,396
Acquisitions of Customer Relationships, Customer Inducements and Contract Fulfillment Costs	2,012	178	3,574	3,988
Global Data Center Business
Segment Information [Line Items]
Revenues	62,291	54,895	123,827	101,498
Depreciation and Amortization	32,671	22,503	64,303	44,771
Depreciation	19,027	13,120	38,040	24,500
Amortization	13,644	9,383	26,263	20,271
Adjusted EBITDA	27,641	24,901	53,652	45,691
Total Assets	2,330,535	1,909,088	2,330,535	1,909,088
Expenditures for Segment Assets	102,477	265,173	256,182	1,703,185
Capital Expenditures (see Liquidity and Capital Resources section of Management's Discussion & Analysis of Financial Condition and Results of Operations)	101,032	43,162	222,589	56,273
Cash Paid for Acquisitions, Net of Cash Acquired	0	221,707	0	1,645,922
Acquisitions of Customer Relationships, Customer Inducements and Contract Fulfillment Costs	1,445	304	33,593	990
Corporate and Other Business
Segment Information [Line Items]
Revenues	41,778	25,850	80,269	50,056
Depreciation and Amortization	13,781	15,345	28,572	31,370
Depreciation	11,913	12,892	24,581	25,961
Amortization	1,868	2,453	3,991	5,409
Adjusted EBITDA	(78,264)	(64,533)	(151,337)	(134,051)
Total Assets	562,363	476,433	562,363	476,433
Expenditures for Segment Assets	12,805	11,052	27,948	25,991
Capital Expenditures (see Liquidity and Capital Resources section of Management's Discussion & Analysis of Financial Condition and Results of Operations)	12,805	11,052	24,428	25,634
Cash Paid for Acquisitions, Net of Cash Acquired	0	0	3,520	0
Acquisitions of Customer Relationships, Customer Inducements and Contract Fulfillment Costs	0	0	0	357
Storage rental
Segment Information [Line Items]
Revenues	669,288	655,439	1,332,262	1,306,588
Storage rental | North American Records and Information Management Business
Segment Information [Line Items]
Revenues	313,355	305,895	620,341	610,714
Storage rental | North American Data Management Business
Segment Information [Line Items]
Revenues	66,750	68,808	133,322	138,054
Storage rental | Western European Business
Segment Information [Line Items]
Revenues	78,554	82,439	159,249	166,391
Storage rental | Other International Business
Segment Information [Line Items]
Revenues	128,898	129,611	258,371	261,358
Storage rental | Global Data Center Business
Segment Information [Line Items]
Revenues	60,582	51,945	120,300	97,440
Storage rental | Corporate and Other Business
Segment Information [Line Items]
Revenues	21,149	16,741	40,679	32,631
Service
Segment Information [Line Items]
Revenues	397,619	405,384	788,508	796,693
Service | North American Records and Information Management Business
Segment Information [Line Items]
Revenues	225,918	233,185	446,312	455,209
Service | North American Data Management Business
Segment Information [Line Items]
Revenues	29,665	31,223	59,840	61,941
Service | Western European Business
Segment Information [Line Items]
Revenues	48,773	51,001	96,831	101,124
Service | Other International Business
Segment Information [Line Items]
Revenues	70,925	77,916	142,408	156,936
Service | Global Data Center Business
Segment Information [Line Items]
Revenues	1,709	2,950	3,527	4,058
Service | Corporate and Other Business
Segment Information [Line Items]
Revenues	$ 20,629	$ 9,109	$ 39,590	$ 17,425

Segment Information - Reconcili

Segment Information - Reconciliation to Income from Continuing Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Reconciliation of Adjusted EBITDA to income from continuing operations
Adjusted EBITDA	$ 350,942	$ 367,555	$ 675,448	$ 703,130
Provision (Benefit) for Income Taxes	10,646	26,057	21,199	25,934
Other (Income) Expense, Net	(15,192)	(19,056)	18	1,095
Interest Expense, Net	105,314	102,196	207,750	199,898
(Gain) Loss on disposal/write-down of property, plant and equipment, net	(8,405)	(546)	(7,803)	(1,676)
Depreciation and Amortization	164,331	156,220	326,814	316,798
Income (Loss) from Continuing Operations	92,347	92,263	122,823	131,652
Recall Transaction and IODC Transaction
Reconciliation of Adjusted EBITDA to income from continuing operations
Significant Acquisition Costs	$ 1,901	$ 10,421	$ 4,647	$ 29,429

Segment Information - Revenues

Segment Information - Revenues by Product and Service Lines by Segment (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Segment Information [Line Items]
Revenues	$ 1,066,907	$ 1,060,823	$ 2,120,770	$ 2,103,281
North American Records and Information Management Business
Segment Information [Line Items]
Revenues	539,273	539,080	1,066,653	1,065,923
North American Data Management Business
Segment Information [Line Items]
Revenues	96,415	100,031	193,162	199,995
Western European Business
Segment Information [Line Items]
Revenues	127,327	133,440	256,080	267,515
Other International Business
Segment Information [Line Items]
Revenues	199,823	207,527	400,779	418,294
Global Data Center Business
Segment Information [Line Items]
Revenues	62,291	54,895	123,827	101,498
Corporate and Other Business
Segment Information [Line Items]
Revenues	41,778	25,850	80,269	50,056
Records Management
Segment Information [Line Items]
Revenues	750,782	746,321	1,484,178	1,486,816
Records Management | North American Records and Information Management Business
Segment Information [Line Items]
Revenues	442,785	441,401	870,152	876,403
Records Management | North American Data Management Business
Segment Information [Line Items]
Revenues	0	0	0	0
Records Management | Western European Business
Segment Information [Line Items]
Revenues	109,369	113,925	218,076	227,684
Records Management | Other International Business
Segment Information [Line Items]
Revenues	172,433	179,194	345,410	360,524
Records Management | Global Data Center Business
Segment Information [Line Items]
Revenues	0	0	0	0
Records Management | Corporate and Other Business
Segment Information [Line Items]
Revenues	26,195	11,801	50,540	22,205
Data Management
Segment Information [Line Items]
Revenues	144,430	150,437	291,678	302,530
Data Management | North American Records and Information Management Business
Segment Information [Line Items]
Revenues	0	0	0	0
Data Management | North American Data Management Business
Segment Information [Line Items]
Revenues	93,152	97,768	187,141	195,362
Data Management | Western European Business
Segment Information [Line Items]
Revenues	16,908	19,393	36,794	39,612
Data Management | Other International Business
Segment Information [Line Items]
Revenues	18,787	19,227	38,014	39,705
Data Management | Global Data Center Business
Segment Information [Line Items]
Revenues	0	0	0	0
Data Management | Corporate and Other Business
Segment Information [Line Items]
Revenues	15,583	14,049	29,729	27,851
Information Destruction
Segment Information [Line Items]
Revenues	109,404	109,170	221,087	212,437
Information Destruction | North American Records and Information Management Business
Segment Information [Line Items]
Revenues	96,488	97,679	196,501	189,520
Information Destruction | North American Data Management Business
Segment Information [Line Items]
Revenues	3,263	2,263	6,021	4,633
Information Destruction | Western European Business
Segment Information [Line Items]
Revenues	1,050	122	1,210	219
Information Destruction | Other International Business
Segment Information [Line Items]
Revenues	8,603	9,106	17,355	18,065
Information Destruction | Global Data Center Business
Segment Information [Line Items]
Revenues	0	0	0	0
Information Destruction | Corporate and Other Business
Segment Information [Line Items]
Revenues	0	0	0	0
Data Center
Segment Information [Line Items]
Revenues	62,291	54,895	123,827	101,498
Data Center | North American Records and Information Management Business
Segment Information [Line Items]
Revenues	0	0	0	0
Data Center | North American Data Management Business
Segment Information [Line Items]
Revenues	0	0	0	0
Data Center | Western European Business
Segment Information [Line Items]
Revenues	0	0	0	0
Data Center | Other International Business
Segment Information [Line Items]
Revenues	0	0	0	0
Data Center | Global Data Center Business
Segment Information [Line Items]
Revenues	62,291	54,895	123,827	101,498
Data Center | Corporate and Other Business
Segment Information [Line Items]
Revenues	$ 0	$ 0	$ 0	$ 0

Commitments and Contingencies (

Commitments and Contingencies (Details) - Jun. 30, 2019 € in Thousands, $ in Thousands	USD ($)	EUR (€)
Insurance Settlement
Commitments and Contingencies
Reasonably possible additional losses | $	$ 17,000
Tax and Customs Administration, Netherlands | Foreign
Commitments and Contingencies
VAT liability | €		€ 16,800

Stockholders' Equity Matters -

Stockholders' Equity Matters - Dividends Declared (Details) $ / shares in Units, $ in Thousands	Jul. 02, 2019USD ($)	May 22, 2019$ / shares	Apr. 02, 2019USD ($)	Feb. 07, 2019$ / shares	Jan. 03, 2019USD ($)	Oct. 25, 2018$ / shares	Oct. 02, 2018USD ($)	Jul. 24, 2018$ / shares	Jul. 02, 2018USD ($)	May 24, 2018$ / shares	Apr. 02, 2018USD ($)	Feb. 14, 2018$ / shares	Oct. 31, 2017USD ($)bank	Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2019USD ($)shares	Jun. 30, 2018USD ($)
Subsidiary or Equity Method Investee [Line Items]
Dividend Per Share (in dollars per share) | $ / shares		$ 0.6110		$ 0.6110		$ 0.6110		$ 0.5875		$ 0.5875		$ 0.5875
Total Amount			$ 175,242		$ 174,935		$ 168,148		$ 168,078		$ 167,969			$ 176,642	$ 169,207	$ 353,102	$ 338,251
Subsequent Event
Subsidiary or Equity Method Investee [Line Items]
Total Amount	$ 175,389
At The Market (ATM) Equity Program
Subsidiary or Equity Method Investee [Line Items]
Number of banks | bank													10
Aggregate sales price of common stock													$ 500,000
Shares of common stock sold (in shares) | shares																0
Remaining aggregate sale price of shares of common stock														$ 431,200		$ 431,200

Divestments (Details)

Divestments (Details) - USD ($) $ in Thousands	Mar. 19, 2019	Mar. 31, 2019	Jun. 30, 2019	Jun. 30, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Investments in joint ventures			$ 19,222	$ 0
Consumer Storage | Disposal Group, Not Discontinued Operations
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on disposal		$ 4,200
Corporate Joint Venture | Makespace
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Investments in joint ventures	$ 20,000
Equity interest	34.00%
Equity method investment, fair value	$ 27,500
Carrying value of investment			$ 23,896

Significant Acquisition Costs -

Significant Acquisition Costs - Significant Acquisition Costs Included in Statements of Operations (Details) - Recall Transaction and IODC Transaction - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Business Combination, Separately Recognized Transactions [Line Items]
Total Significant Acquisition Costs	$ 1,901	$ 10,421	$ 4,647	$ 29,429
Cost of sales (excluding depreciation and amortization)
Business Combination, Separately Recognized Transactions [Line Items]
Total Significant Acquisition Costs	1,293	1,827	2,191	2,123
Selling, general and administrative expenses
Business Combination, Separately Recognized Transactions [Line Items]
Total Significant Acquisition Costs	$ 608	$ 8,594	$ 2,456	$ 27,306

Significant Acquisition Costs_2

Significant Acquisition Costs - Significant Acquisition Costs by Segment (Details) - Recall Transaction and IODC Transaction - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Business Combination, Separately Recognized Transactions [Line Items]
Total Significant Acquisition Costs	$ 1,901	$ 10,421	$ 4,647	$ 29,429
North American Records and Information Management Business
Business Combination, Separately Recognized Transactions [Line Items]
Total Significant Acquisition Costs	0	3,017	378	3,601
North American Data Management Business
Business Combination, Separately Recognized Transactions [Line Items]
Total Significant Acquisition Costs	0	351	0	351
Western European Business
Business Combination, Separately Recognized Transactions [Line Items]
Total Significant Acquisition Costs	81	1,427	81	3,579
Other International Business
Business Combination, Separately Recognized Transactions [Line Items]
Total Significant Acquisition Costs	951	896	1,453	1,433
Global Data Center Business
Business Combination, Separately Recognized Transactions [Line Items]
Total Significant Acquisition Costs	124	1,159	267	11,340
Corporate and Other Business
Business Combination, Separately Recognized Transactions [Line Items]
Total Significant Acquisition Costs	$ 745	$ 3,571	$ 2,468	$ 9,125

Related Party Transactions - Na

Related Party Transactions - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Makespace
Related Party Transaction [Line Items]
Revenue	$ 7,400	$ 7,900