CACI International (CACI) 10-K28 Aug 142014 FY Annual reportFinancial data

Company Profile

Document_And_Entity_Informatio

Document And Entity Information (USD $)	12 Months Ended
Document And Entity Information (USD $)	Jun. 30, 2014	Aug. 21, 2014	Dec. 31, 2013
Document And Entity Information [Abstract]	'	'	'
Entity Registrant Name	'CACI INTERNATIONAL INC /DE/	'	'
Entity Central Index Key	'0000016058	'	'
Trading Symbol	'caci	'	'
Entity Current Reporting Status	'Yes	'	'
Entity Voluntary Filers	'No	'	'
Current Fiscal Year End Date	'--06-30	'	'
Entity Filer Category	'Large Accelerated Filer	'	'
Entity Well-known Seasoned Issuer	'No	'	'
Entity Common Stock, Shares Outstanding	'	23,514,858	'
Entity Public Float	'	'	$1,696,703,556
Document Type	'10-K	'	'
Document Period End Date	30-Jun-14	'	'
Amendment Flag	'false	'	'
Document Fiscal Year Focus	'2014	'	'
Document Fiscal Period Focus	'FY	'	'

CONSOLIDATED_STATEMENTS_OF_OPE

CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Condensed Consolidated Statements Of Operations [Abstract]	'	'	'
Revenue	$3,564,562	$3,681,990	$3,774,473
Costs of revenue:	'	'	'
Direct costs	2,426,520	2,535,606	2,598,890
Indirect costs and selling expenses	815,458	821,465	819,772
Depreciation and amortization	65,181	54,078	55,962
Total costs of revenue	3,307,159	3,411,149	3,474,624
Income from operations	257,403	270,841	299,849
Interest expense and other, net	38,158	25,818	24,101
Income before income taxes	219,245	245,023	275,748
Income taxes	83,326	92,347	107,537
Net income including portion attributable to noncontrolling interest in earnings of joint venture	135,919	152,676	168,211
Noncontrolling interest in earnings of joint venture	-603	-987	-757
Net income attributable to CACI	$135,316	$151,689	$167,454
Basic earnings per share (in dollars per share)	$5.78	$6.59	$6.18
Diluted earnings per share (in dollars per share)	$5.38	$6.35	$5.96
Weighted-average basic shares outstanding (in shares)	23,429	23,010	27,077
Weighted-average diluted shares outstanding (in shares)	25,155	23,885	28,111

CONSOLIDATED_STATEMENTS_OF_COM

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Consolidated Statements Of Comprehensive Income [Abstract]	'	'	'
Net income including portion attributable to noncontrolling interest in earnings of joint venture	$135,919	$152,676	$168,211
Foreign currency translation adjustment	13,333	-2,567	-3,105
Effects of post-retirement adjustments	-257	324	-282
Change in fair value of interest rate swap agreements, net	-3,643	262	-1,332
Comprehensive income including portion attributable to noncontrolling interest in earnings of joint venture	145,352	150,695	163,492
Noncontrolling interest in earnings of joint venture	-603	-987	-757
Comprehensive income attributable to CACI	$144,749	$149,708	$162,735

CONSOLIDATED_BALANCE_SHEETS

CONSOLIDATED BALANCE SHEETS (USD $)	Jun. 30, 2014	Jun. 30, 2013
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Current assets:	'	'
Cash and cash equivalents	$64,461	$64,337
Accounts receivable, net	615,580	614,616
Deferred income taxes	22,694	18,953
Prepaid expenses and other current assets	33,114	25,875
Total current assets	735,849	723,781
Goodwill	2,188,569	1,476,965
Intangible assets, net	230,410	104,188
Property and equipment, net	68,485	65,510
Supplemental retirement savings plan assets	88,465	83,419
Accounts receivable, long-term	8,714	11,330
Other long-term assets	38,646	31,878
Total assets	3,359,138	2,497,071
Current liabilities:	'	'
Current portion of long-term debt	41,563	295,517
Accounts payable	55,811	133,073
Accrued compensation and benefits	183,361	166,538
Other accrued expenses and current liabilities	141,852	147,366
Total current liabilities	422,587	742,494
Long-term debt, net of current portion	1,238,728	300,790
Supplemental retirement savings plan obligations, net of current portion	77,457	74,757
Deferred income taxes	197,847	119,885
Other long-term liabilities	63,353	51,573
Total liabilities	1,999,972	1,289,499
Commitments and contingencies	'	'
Shareholders' equity:	'	'
Preferred stock $0.10 par value, 10,000 shares authorized, no shares issued	'	'
Common stock $0.10 par value, 80,000 shares authorized; 41,441 issued and 23,500 outstanding at June 30, 2014 and 41,172 issued and 23,222 outstanding at June 30, 2013	4,144	4,117
Additional paid-in capital	537,334	530,154
Retained earnings	1,392,954	1,257,638
Accumulated other comprehensive loss	-382	-9,815
Treasury stock, at cost (17,941 and 17,950 shares, respectively)	-577,167	-577,191
Total CACI shareholders' equity	1,356,883	1,204,903
Noncontrolling interest in joint venture	2,283	2,669
Total shareholders' equity	1,359,166	1,207,572
Total liabilities and shareholders' equity	$3,359,138	$2,497,071

CONSOLIDATED_BALANCE_SHEETS_Pa

CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $)	Jun. 30, 2014	Jun. 30, 2013
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Condensed Consolidated Balance Sheets [Abstract]	'	'
Preferred stock, par value (in dollars per share)	$0.10	$0.10
Preferred stock, shares authorized	10,000	10,000
Preferred stock, shares issued	'	'
Common stock, par value (in dollars per share)	$0.10	$0.10
Common stock, shares authorized	80,000	80,000
Common stock, shares issued	41,441	41,172
Common stock, shares outstanding	23,500	23,222
Treasury stock, shares at cost	17,941	17,950

CONSOLIDATED_STATEMENTS_OF_CAS

CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
CASH FLOWS FROM OPERATING ACTIVITIES	'	'	'
Net income including portion attributable to noncontrolling interest in earnings of joint venture	$135,919	$152,676	$168,211
Reconciliation of net income including portion attributable to noncontrolling interest to net cash provided by operating activities:	'	'	'
Depreciation and amortization	65,181	54,078	55,962
Non-cash interest expense	11,421	12,868	12,024
Amortization of deferred financing costs	2,940	2,073	2,237
Loss on extinguishment of debt	4,116	'	'
Stock-based compensation expense	11,557	8,832	15,499
Deferred income tax expense	15,559	31,102	10,653
Distribution of earnings from unconsolidated joint ventures	2,169	5,627	'
Equity in earnings of unconsolidated joint ventures	-1,656	-2,620	-1,728
Other	'	'	1,322
Changes in operating assets and liabilities, net of effect of business acquisitions:	'	'	'
Accounts receivable, net	91,010	32,265	-33,919
Prepaid expenses and other assets	-6,835	-11,739	-11,064
Accounts payable and other accrued expenses	-119,997	-5,750	41,879
Accrued compensation and benefits	-20,416	-23,744	3
Income taxes payable and receivable	6,710	-17,188	930
Deferred rent	-1,151	-2,861	-2,878
Supplemental retirement savings plan obligations and other long-term liabilities	2,116	13,712	12,092
Net cash provided by operating activities	198,643	249,331	271,223
CASH FLOWS FROM INVESTING ACTIVITIES	'	'	'
Capital expenditures	-15,279	-15,439	-18,284
Cash paid for business acquisitions, net of cash acquired	-839,050	-107,021	-185,926
Net investments in unconsolidated joint ventures	3,550	-838	'
Other	-876	-4,119	-158
Net cash used in investing activities	-851,655	-127,417	-204,368
CASH FLOWS FROM FINANCING ACTIVITIES	'	'	'
Proceeds from borrowings under bank credit facilities, net of financing costs	1,577,000	838,000	1,095,000
Principal payments made under bank credit facilities	-902,781	-790,500	-977,500
Payment of financing costs under bank credit facilities	-13,369	-612	-1,249
Payment of contingent consideration	-3,294	-3,187	-21,611
Proceeds from employee stock purchase plans	3,527	4,505	4,095
Proceeds from exercise of stock options	'	13,050	7,466
Repurchases of common stock	-3,653	-127,529	-316,563
Payment of taxes for equity transactions	-9,764	-7,605	-4,535
Other	3,836	853	-584
Net cash provided by (used in) financing activities	651,502	-73,025	-215,481
Effect of exchange rate changes on cash and cash equivalents	1,634	-292	-451
Net increase (decrease) in cash and cash equivalents	124	48,597	-149,077
Cash and cash equivalents, beginning of year	64,337	15,740	164,817
Cash and cash equivalents, end of year	64,461	64,337	15,740
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION	'	'	'
Cash paid for income taxes, net of refunds	52,268	76,573	94,994
Cash paid for interest	23,877	13,429	12,447
Non-cash financing and investing activities:	'	'	'
Landlord-financed leasehold improvements	$2,190	$3,030	$5,010

CONSOLIDATED_STATEMENTS_OF_SHA

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $)	Preferred Stock	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Total CACI Shareholders' Equity	Noncontrolling Interest in Joint Venture	Total
In Thousands	Preferred Stock	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Total CACI Shareholders' Equity	Noncontrolling Interest in Joint Venture	Total
Beginning balance at Jun. 30, 2011	'	$4,027	$504,156	$938,495	($3,115)	($136,631)	$1,306,932	$2,684	$1,309,616
Beginning balance, shares at Jun. 30, 2011	'	40,273	'	'	'	10,077	'	'	'
Net income attributable to CACI	'	'	'	167,454	'	'	167,454	'	167,454
Noncontrolling interest in earnings of joint venture	'	'	'	'	'	'	'	757	757
Stock-based compensation expense	'	'	15,499	'	'	'	15,499	'	15,499
Exercise of stock options and vesting of restricted stock units	'	35	1,170	'	'	'	1,205	'	1,205
Exercise of stock options and vesting of restricted stock units, shares	'	353	'	'	'	'	'	'	'
Change in fair value of interest rate swap agreements, net	'	'	'	'	-1,332	'	-1,332	'	-1,332
Currency translation adjustment	'	'	'	'	-3,105	'	-3,105	'	-3,105
Repurchases of common stock	'	'	'	'	'	-328,890	-328,890	'	-328,890
Repurchases of common stock, shares	'	'	'	'	'	6,000	'	'	'
Treasury stock issued under stock purchase plans	'	'	4,296	'	'	218	4,514	'	4,514
Treasury stock issued under stock purchase plans, shares	'	'	'	'	'	-89	'	'	'
Post-retirement benefit costs	'	'	'	'	-282	'	-282	'	-282
Net distributions to noncontrolling interest	'	'	'	'	'	'	'	-991	-991
Ending balance at Jun. 30, 2012	'	4,062	525,121	1,105,949	-7,834	-465,303	1,161,995	2,450	1,164,445
Ending balance, shares at Jun. 30, 2012	'	40,626	'	'	'	15,988	'	'	'
Net income attributable to CACI	'	'	'	151,689	'	'	151,689	'	151,689
Noncontrolling interest in earnings of joint venture	'	'	'	'	'	'	'	987	987
Stock-based compensation expense	'	'	8,832	'	'	'	8,832	'	8,832
Exercise of stock options and vesting of restricted stock units	'	55	-5,191	'	'	'	-5,136	'	-5,136
Exercise of stock options and vesting of restricted stock units, shares	'	546	'	'	'	'	'	'	'
Change in fair value of interest rate swap agreements, net	'	'	'	'	262	'	262	'	262
Currency translation adjustment	'	'	'	'	-2,567	'	-2,567	'	-2,567
Repurchases of common stock	'	'	'	'	'	-115,201	-115,201	'	-115,201
Repurchases of common stock, shares	'	'	'	'	'	2,059	'	'	'
Treasury stock issued under stock purchase plans	'	'	1,392	'	'	3,313	4,705	'	4,705
Treasury stock issued under stock purchase plans, shares	'	'	'	'	'	-97	'	'	'
Post-retirement benefit costs	'	'	'	'	324	'	324	'	324
Net distributions to noncontrolling interest	'	'	'	'	'	'	'	-768	-768
Ending balance at Jun. 30, 2013	'	4,117	530,154	1,257,638	-9,815	-577,191	1,204,903	2,669	1,207,572
Ending balance, shares at Jun. 30, 2013	'	41,172	'	'	'	17,950	'	'	'
Net income attributable to CACI	'	'	'	135,316	'	'	135,316	'	135,316
Noncontrolling interest in earnings of joint venture	'	'	'	'	'	'	'	603	603
Stock-based compensation expense	'	'	11,557	'	'	'	11,557	'	11,557
Exercise of stock options and vesting of restricted stock units	'	27	-4,414	'	'	'	-4,387	'	-4,387
Exercise of stock options and vesting of restricted stock units, shares	'	269	'	'	'	'	'	'	'
Change in fair value of interest rate swap agreements, net	'	'	'	'	-3,643	'	-3,643	'	-3,643
Currency translation adjustment	'	'	'	'	13,333	'	13,333	'	13,333
Acquisition of common stock from call option	'	'	106,799	'	'	-106,799	'	'	'
Acquisition of common stock from call option, shares	'	'	'	'	'	1,431	'	'	'
Treasury stock issued for conversion of the Notes	'	'	-106,799	'	'	106,799	'	'	'
Treasury stock issued for conversion of the Notes, shares	'	'	'	'	'	-1,431	'	'	'
Repurchases of common stock	'	'	'	'	'	-3,495	-3,495	'	-3,495
Repurchases of common stock, shares	'	'	'	'	'	53	'	'	'
Treasury stock issued under stock purchase plans	'	'	37	'	'	3,519	3,556	'	3,556
Treasury stock issued under stock purchase plans, shares	'	'	'	'	'	-62	'	'	'
Post-retirement benefit costs	'	'	'	'	-257	'	-257	'	-257
Net distributions to noncontrolling interest	'	'	'	'	'	'	'	-989	-989
Ending balance at Jun. 30, 2014	'	$4,144	$537,334	$1,392,954	($382)	($577,167)	$1,356,883	$2,283	$1,359,166
Ending balance, shares at Jun. 30, 2014	'	41,441	'	'	'	17,941	'	'	'

ORGANIZATION_AND_BASIS_OF_PRES

ORGANIZATION AND BASIS OF PRESENTATION	12 Months Ended
ORGANIZATION AND BASIS OF PRESENTATION	Jun. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
ORGANIZATION AND BASIS OF PRESENTATION	'

	NOTE 1. ORGANIZATION AND BASIS OF PRESENTATION



	Business Activities



	CACI International Inc, along with its wholly-owned subsidiaries and joint ventures that are more than 50 percent owned or otherwise controlled by it (collectively, the Company), is an international information solutions and services provider to its clients, primarily the U.S. government. Other customers include state and local governments, commercial enterprises and agencies of foreign governments.



	The Company’s operations are subject to certain risks and uncertainties including, among others, the dependence on contracts with federal government agencies, dependence on revenue derived from contracts awarded through competitive bidding, existence of contracts with fixed pricing, dependence on subcontractors to fulfill contractual obligations, dependence on key management personnel, ability to attract and retain qualified employees, ability to successfully integrate acquired companies, and current and potential competitors with greater resources.



	Basis of Presentation



	The accompanying consolidated financial statements of the Company have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission (SEC) and include the assets, liabilities, results of operations and cash flows for the Company, including its subsidiaries and joint ventures that are more than 50 percent owned or otherwise controlled by the Company. All intercompany balances and transactions have been eliminated in consolidation.

SUMMARY_OF_SIGNIFICANT_ACCOUNT

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	Jun. 30, 2014
Summary Of Significant Accounting Policies [Abstract]	'
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	'
	NOTE 2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

	Revenue Recognition

	Revenue is recognized when persuasive evidence of an arrangement exists, delivery has occurred or services have been rendered, the fee is fixed or determinable, and collectability is probable. The Company generates almost all of its revenue from three different types of contractual arrangements: cost-plus-fee, time and material (T&M), and fixed price contracts. Revenue on cost-plus-fee contracts is recognized to the extent of costs incurred plus an estimate of the applicable fees earned. The Company considers fixed fees under cost-plus-fee contracts to be earned in proportion to the allowable costs incurred in performance of the contract. For cost-plus-fee contracts that include performance based fee incentives, and that are subject to the provisions of Accounting Standards Codification (ASC) 605-35, Revenue Recognition – Construction-Type and Production-Type Contracts (ASC 605-35), the Company recognizes the relevant portion of the expected fee to be awarded by the customer at the time such fee can be reasonably estimated, based on factors such as the Company’s prior award experience and communications with the customer regarding performance. For such cost-plus-fee contracts subject to the provisions of ASC 605-10-S99, Revenue Recognition – SEC Materials (ASC 605-10-S99), the Company recognizes the relevant portion of the fee upon customer approval. Revenue on T&M contracts is recognized to the extent of billable rates times hours delivered for services provided, to the extent of material cost for products delivered to customers, and to the extent of expenses incurred on behalf of the customers. Shipping and handling fees charged to the customers are recognized as revenue at the time products are delivered to the customers.

	The Company has several categories of fixed price contracts: fixed unit price, fixed price-level of effort, and fixed price-completion. Revenue on fixed unit price contracts, where specified units of output under service arrangements are delivered, is recognized as units are delivered based on the specified price per unit. Revenue on fixed unit price maintenance contracts is recognized ratably over the length of the service period. Revenue for fixed price-level of effort contracts is recognized based upon the number of units of labor actually delivered multiplied by the agreed rate for each unit of labor.

	A significant portion of the Company’s fixed price-completion contracts involve the design and development of complex client systems. For these contracts that are within the scope of ASC 605-35, revenue is recognized on the percentage-of-completion method using costs incurred in relation to total estimated costs. For fixed price-completion contracts that are not within the scope of ASC 605-35, revenue is generally recognized over the period when services are provided.

	Contract accounting requires judgment relative to assessing risks, estimating contract revenue and costs, and making assumptions for schedule and technical issues. Due to the size and nature of many of the Company’s contracts, the estimation of total revenue and cost at completion is complicated and subject to many variables. Contract costs include material, labor, subcontracting costs, and other direct costs, as well as an allocation of allowable indirect costs. Assumptions have to be made regarding the length of time to complete the contract because costs also include expected increases in wages and prices for materials. For contract change orders, claims or similar items, the Company applies judgment in estimating the amounts and assessing the potential for realization. These amounts are only included in contract value when they can be reliably estimated and realization is considered probable. Incentives or penalties related to performance on contracts are considered in estimating sales and profit rates, and are recorded when there is sufficient information for the Company to assess anticipated performance. Estimates of award fees for certain contracts are also a factor in estimating revenue and profit rates based on actual and anticipated awards.

	Long-term development and production contracts make up a large portion of the Company’s business, and therefore the amounts recorded in the Company’s financial statements using contract accounting methods are material. For federal government contracts, the Company follows U.S. government procurement and accounting standards in assessing the allowability and the allocability of costs to contracts. Due to the significance of the judgments and estimation processes, it is likely that materially different amounts could be recorded if the Company used different assumptions or if the underlying circumstances were to change. The Company closely monitors compliance with, and the consistent application of, its critical accounting policies related to contract accounting. Business operations personnel conduct thorough periodic contract status and performance reviews. When adjustments in estimated contract revenue or costs are required, any changes from prior estimates are generally included in earnings in the current period. Also, regular and recurring evaluations of contract cost, scheduling and technical matters are performed by management personnel who are independent from the business operations personnel performing work under the contract. Costs incurred and allocated to contracts with the U.S. government are inspected for compliance with regulatory standards by Company personnel, and are subject to audit by the Defense Contract Audit Agency (DCAA).

	From time to time, the Company may proceed with work based on client direction prior to the completion and signing of formal contract documents. The Company has a formal review process for approving any such work. Revenue associated with such work is recognized only when it can be reliably estimated and realization is probable. The Company bases its estimates on previous experiences with the client, communications with the client regarding funding status, and its knowledge of available funding for the contract or program.

	The Company’s U.S. government contracts (94.0 and 94.4 percent of total revenue in the year ended June 30, 2014 and 2013, respectively) are subject to subsequent government audit of direct and indirect costs. Incurred cost audits have been completed through June 30, 2007. Management does not anticipate any material adjustment to the consolidated financial statements in subsequent periods for audits not yet started or completed.

	Costs of Revenue

	Costs of revenue include all direct contract costs as well as indirect overhead costs and selling, general and administrative expenses that are allowable and allocable to contracts under federal procurement standards. Costs of revenue also include costs and expenses that are unallowable under applicable procurement standards, and are not allocable to contracts for billing purposes. Such costs and expenses do not directly generate revenue, but are necessary for business operations.

	Cash and Cash Equivalents

	The Company considers all investments with an original maturity of three months or fewer on their trade date to be cash equivalents. The Company classifies investments with an original maturity of more than three months but fewer than twelve months on their trade date as short-term marketable securities.

	Investments in Marketable Securities

	From time to time, the Company invests in marketable securities that are classified as available-for-sale and are reported at fair value. Unrealized gains and losses as a result of changes in the fair value of the available-for-sale investments are recorded as a separate component within accumulated other comprehensive income in the accompanying consolidated balance sheets. For securities classified as trading securities, unrealized gains and losses are reported in the consolidated statement of operations and impact net earnings.

	The fair value of marketable securities is determined based on quoted market prices at the reporting date for those securities. The cost of securities sold is determined using the specific identification method. Premiums and discounts are amortized over the period from acquisition to maturity, and are included in investment income, along with interest and dividends.

	Inventories

	Inventories are stated at the lower of cost or market using the specific identification cost method, and are recorded within prepaid expenses and other current assets on the accompanying consolidated balance sheets.

	Accounting for Business Combinations and Goodwill

	The purchase price of an acquired business is allocated to the tangible assets and separately identifiable intangible assets acquired less liabilities assumed based upon their respective fair values, with the excess recorded as goodwill.

	The Company evaluates goodwill at least annually for impairment, or whenever events or circumstances indicate that the carrying value may not be recoverable. The evaluation includes comparing the fair value of the relevant reporting unit to the carrying value, including goodwill, of such unit. The level at which the Company tests goodwill for impairment requires management to determine whether the operations below the operating segments constitute a self-sustaining business for which discrete financial information is available and segment management regularly reviews the operating results. If the fair value exceeds the carrying value, no impairment loss is recognized. However, if the carrying value of the reporting unit exceeds its fair value, the goodwill of the reporting unit may be impaired. Impairment is measured by comparing the implied fair value of the goodwill to its carrying value. Separately identifiable intangible assets with estimable useful lives are amortized over their respective estimated useful lives to their estimated residual values, and reviewed for impairment if impairment indicators are present.

	As part of the annual assessment, the Company estimates the fair value of its reporting units using both an income approach and a market approach. The valuation process considers management’s estimates of the future

	operating performance of each reporting unit. Companies in similar industries are researched and analyzed and management considers the domestic and international economic and financial market conditions, both in general and specific to the industry in which the Company operates, prevailing as of the valuation date. The income approach utilizes discounted cash flows. The Company calculates a weighted average cost of capital for each reporting unit in order to estimate the discounted cash flows.

	The Company evaluates goodwill as of the first day of the fourth quarter. In addition, the Company will perform interim impairment testing should circumstances requiring it arise. The Company completed its annual goodwill assessment as of April 1, 2014 and no impairment charge was necessary as a result of this assessment.

	Long-Lived Assets (Excluding Goodwill)

	Long-lived assets such as property and equipment and intangible assets subject to amortization are reviewed for impairment whenever events or circumstances indicate that the carrying amount of an asset may not be fully recoverable. An impairment loss would be recognized if the sum of the long-term undiscounted cash flows is less than the carrying amount of the long-lived asset being evaluated. Any write-downs are treated as permanent reductions in the carrying amount of the assets. Property and equipment is recorded at cost. Depreciation of equipment and furniture has been provided over the estimated useful life of the respective assets (ranging from three to eight years) using the straight-line method. Leasehold improvements are generally amortized using the straight-line method over the remaining lease term or the useful life of the improvements, whichever is shorter. Repairs and maintenance costs are expensed as incurred. Separately identifiable intangible assets with estimable useful lives are amortized over their respective estimated useful lives to their estimated residual values.

	External Software Development Costs

	Costs incurred in creating a software product to be sold or licensed for external use are charged to expense when incurred as indirect costs and selling expenses until technological feasibility has been established for the software. Technological feasibility is established upon completion of a detailed program design or, in its absence, completion of a working software version. Thereafter, all such software development costs are capitalized and subsequently reported at the lower of unamortized cost or estimated net realizable value. Capitalized costs are amortized on a straight-line basis over the remaining estimated economic life of the product.

	Supplemental Retirement Savings Plan

	The Company maintains the CACI International Inc Group Executive Retirement Plan (the Supplemental Savings Plan) and maintains the underlying assets in a Rabbi Trust. The Supplemental Savings Plan is a non-qualified defined contribution supplemental retirement savings plan for certain key employees whereby participants may elect to defer and contribute a portion of their compensation, as permitted by the plan. Each participant directs his or her investments in the Supplemental Savings Plan (see Note 20).

	A Rabbi Trust is a grantor trust established to fund compensation for a select group of management. The assets of this trust are available to satisfy the claims of general creditors in the event of bankruptcy of the Company. The assets held by the Rabbi Trust are invested in both corporate owned life insurance (COLI) products and in non-COLI products. The COLI products are recorded at cash surrender value in the consolidated financial statements as supplemental retirement savings plan assets and the non-COLI products are recorded at fair value in the consolidated financial statements as supplemental retirement savings plan assets. The amounts due to participants are based on contributions, participant investment elections, and other participant activity and are recorded as supplemental retirement savings plan obligations.

	Income Taxes

Income taxes are accounted for using the asset and liability method whereby deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the consolidated financial statement carrying amounts of assets and liabilities, and their respective tax bases, and operating loss and tax credit carry forwards. The Company accounts for tax contingencies in accordance with updates made to ASC 740-10-25, Income Taxes – Recognition. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities due to a change in tax rates is recognized in income in the period that includes the enactment date. Estimates of the realizability of deferred tax assets are based on the scheduled reversal of deferred tax liabilities, projected future taxable income, and tax planning strategies. Any interest or penalties incurred in connection with income taxes are recorded as part of income tax expense for financial reporting purposes.

Costs of Acquisitions

Costs associated with legal, financial and other professional advisors related to acquisitions, whether successful or unsuccessful, are expensed as incurred.

Foreign Currency Translation

The assets and liabilities of the Company’s foreign subsidiaries whose functional currency is other than the U.S. dollar are translated at the exchange rate in effect on the reporting date, and income and expenses are translated at the weighted-average exchange rate during the period. The Company’s primary practice is to negotiate contracts in the same currency in which the predominant expenses are incurred, thereby mitigating the exposure to foreign currency fluctuations. The net translation gains and losses are not included in determining net income, but are accumulated as a separate component of shareholders’ equity. Foreign currency transaction gains and losses are included in determining net income, but are insignificant. These costs are included as indirect costs and selling expenses in the accompanying consolidated statements of operations.

Earnings Per Share

Basic earnings per share excludes dilution and is computed by dividing income by the weighted average number of common shares outstanding for the period. Diluted earnings per share reflects potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock but not securities that are anti-dilutive, including stock options and stock settled stock appreciation rights (SSARs) with an exercise price greater than the average market price of the Company’s common stock. Using the treasury stock method, diluted earnings per share includes the incremental effect of SSARs, stock options, restricted shares, and those restricted stock unit (RSUs) that are no longer subject to a market or performance condition. For the period of the year they were outstanding, diluted earnings per share reflected the dilutive effects of shares issuable under the Company’s $300.0 million of 2.125 percent convertible senior subordinated notes that were issued on May 16, 2007 and matured on May 1, 2014 (the Notes), and warrants to issue 5.5 million shares of CACI common stock at an exercise price of $68.31 per share that were issued in May 2007. Information about the weighted-average number of basic and diluted shares is presented in Note 23.

Fair Value of Financial Instruments

The carrying amounts of cash and cash equivalents, accounts receivable, accounts payable and amounts included in other current assets and current liabilities that meet the definition of a financial instrument approximate fair value because of the short-term nature of these amounts.

The fair value of the Company’s debt under its bank credit facility approximates its carrying value at June 30, 2014. The fair value of the Company’s debt under its bank credit facility was estimated using market data on companies with a corporate rating similar to CACI’s that have recently priced credit facilities. The fair value of the Notes is based on quoted market prices using Level 1 inputs (see Notes 13 and 22).

Concentrations of Credit Risk

Financial instruments that potentially subject the Company to credit risk include accounts receivable and cash equivalents. Management believes that credit risk related to the Company’s accounts receivable is limited due to a large number of customers in differing segments and agencies of the U.S. government. Accounts receivable credit risk is also limited due to the credit worthiness of the U.S. government. Management believes the credit risk associated with the Company’s cash equivalents is limited due to the credit worthiness of the obligors of the investments underlying the cash equivalents. In addition, although the Company maintains cash balances at financial institutions that exceed federally insured limits, these balances are placed with high quality financial institutions.

Comprehensive Income

Comprehensive income is the change in equity of a business enterprise during a period from transactions and other events and circumstances from non-owner sources. Other comprehensive income refers to revenue, expenses, and gains and losses that under U.S. GAAP are included in comprehensive income, but excluded from the determination of net income. The elements within other comprehensive income consist of foreign currency translation adjustments; the changes in the fair value of interest rate swap agreements, net of tax of $2.4 million for the year ended June 30, 2014; and differences between actual amounts and estimates based on actuarial assumptions and the effect of changes in actuarial assumptions made under the Company’s post-retirement benefit plans, net of tax (see Note 15).

As of June 30, 2014 and 2013, accumulated other comprehensive income included a gain of $5.2 million and a loss of $8.1 million, respectively, related to foreign currency translation adjustments, a loss of $4.7 million and $1.1 million, respectively, related to the fair value of its interest rate swap agreements, and a loss of $0.9 million and $0.7 million, respectively, related to unrecognized post-retirement costs.

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reported periods. The significant management estimates include estimated costs to complete fixed-price contracts, estimated award fees for contracts accounted for under ASC 605-35, amortization periods for long-lived intangible assets, recoverability of long-lived assets, reserves for accounts receivable, reserves for contract related matters, reserves for unrecognized tax benefits, and loss contingencies. Actual results could differ from these estimates.

Commitments and Contingencies

Liabilities for loss contingencies arising from claims, assessments, litigation, fines and penalties and other sources are recorded when it is probable that a liability has been incurred and the amount of the assessment and/or remediation can be reasonably estimated.

RECENTLY_ISSUED_ACCOUNTING_PRO

RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS	12 Months Ended
RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS	Jun. 30, 2014
Recently Issued Accounting Pronouncements [Abstract]	'
RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS	'

	NOTE 3. RECENTLY ISSUED ACCOUNTING PRONOUNCEMENTS



	In April 2014, the FASB issued Accounting Standards Update (ASU) No. 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity, which requires only those disposals which represent a strategic shift that has or will have a major impact on an entity’s operations or financial results be presented as discontinued operations. The ASU is effective for annual periods, and interim periods within those annual periods, beginning on or after December 15, 2014, with early adoption permitted. The Company’s early adoption of this ASU on April 1, 2014 did not have any impact on the Company’s consolidated financial statements.



	In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers, which supersedes nearly all existing revenue recognition guidance under U.S. GAAP. The core principle of ASU 2014-09 is to recognize revenues when promised goods or services are transferred to customers in an amount that reflects the consideration to which an entity expects to be entitled for those goods or services. ASU 2014-09 defines a five step process to achieve this core principle and, in doing so, more judgment and estimates may be required within the revenue recognition process than are required under existing U.S. GAAP.



	The standard is effective for annual reporting periods, including interim reporting periods within those periods, beginning after December 15, 2016, using either a full retrospective approach or a modified approach. The Company is currently evaluating the impact that the adoption of ASU 2014-09 may have on the Company’s consolidated financial statements and have not yet determined the method by which the Company will adopt the standard in FY2018.

ACQUISITIONS

ACQUISITIONS	12 Months Ended
ACQUISITIONS	Jun. 30, 2014
Business Combinations [Abstract]	'
ACQUISITIONS	'

	NOTE 4. ACQUISITIONS



	Year Ended June 30, 2014



	On November 15, 2013, CACI acquired 100 percent of the outstanding shares of Six3 Systems. Six3 Systems provides highly specialized support to the national security community in the areas of cyber and signals intelligence; intelligence, surveillance, and reconnaissance; and intelligence operations. The acquisition expanded CACI’s high-growth Cyberspace market, as well as build on CACI’s capabilities in its high-volume C4ISR and Intelligence markets. In connection with the acquisition, on November 15, 2013, CACI entered into a fifth amendment (the Amendment) to its credit agreement dated as of October 21, 2010 (the Credit Agreement). The Amendment modified the Credit Agreement to allow for the incurrence of $700 million in additional term loans and a $100 million increase in the revolving facility to finance the acquisition of Six3 Systems.



	The initial purchase consideration paid at closing in cash to acquire Six3 Systems was $820.0 million plus $25.8 million representing the estimated cash and net working capital adjustment, as defined in the agreement. Of the payment made at closing, $5.0 million was deposited into an escrow account pending final determination of the cash and net working capital acquired and $35.0 million was deposited into an escrow account to secure the sellers’ indemnification obligations (the Indemnification Amount). During the three months ended March 31, 2014, the parties agreed on the final cash and net working capital acquired and the $5.0 million in escrow was distributed in full to the sellers. Any remaining Indemnification Amount at the end of the indemnification period not encumbered as a result of one or more indemnification claims will be distributed to the sellers.



	The fair values assigned to the intangible assets acquired were based on estimates, assumptions, and other information compiled by management, including independent valuations that utilized established valuation techniques. Based on the Company’s valuation, the total consideration of $847.3 million, which includes a final cash and net working capital adjustment of $1.4 million, has been allocated to assets acquired (including identifiable intangible assets and goodwill) and liabilities assumed (including deferred taxes on identifiable intangible assets that are not deductible for income tax purposes), as follows (in thousands):




	Cash	$	10,166
	Accounts receivable		80,615
	Prepaid expenses and other current assets		17,551
	Property and equipment		8,051
	Customer contracts and customer relationships		164,300
	Goodwill		702,747
	Other assets		598
	Accounts payable		(9,047	)
	Accrued expenses and other current liabilities		(63,417	)
	Long-term deferred tax liability		(64,275	)

	Total consideration	$	847,289




	The goodwill of $702.7 million is largely attributed to the specialized workforce and the expected synergies between the Company and Six3 Systems. The value attributed to customer contracts and customer relationships is being amortized on an accelerated basis over approximately 14 years. Of the value attributed to goodwill, $55.1 million is deductible for income tax purposes.



	From the date of acquisition through June 30, 2014, Six3 Systems generated $268.4 million of revenue and $8.9 million of net income. Six3 Systems’ net income includes the impact of $12.9 million of amortization of customer contracts and customer relationships, as well as $4.2 million in expense associated with retention bonuses associated with retention agreements with certain Six3 Systems executives. The agreements provide for a payment upon the one and two year anniversaries of the acquisition, dependent upon continued employment by the executive as an employee of the Company. Six3 Systems’ net income does not include the impact of acquisition-related expenses incurred by CACI.



	CACI incurred $11.7 million of acquisition-related expenses during the year ended June 30, 2014, including expenses associated with retention bonuses. In addition, CACI incurred a $4.1M indirect loss on extinguishment of debt. See Note 13 for additional information on the loss on extinguishment.



	The following pro forma results are prepared for comparative purposes only and do not necessarily reflect the results that would have occurred had the acquisition occurred at the beginning of the years presented or the results which may occur in the future. The following unaudited pro forma results of operations assume the Six3 Systems acquisition had occurred on July 1, 2012 (in thousands except per share amounts):


		(Unaudited)
		Year ended June 30,
		2014			2013
	Revenue	$	3,742,394		$	4,121,447
	Net income		150,881			152,406
	Basic earnings per share		6.44			6.62
	Diluted earnings per share		6			6.38



Year Ended June 30, 2013



During the year ended June 30, 2013, the Company completed acquisitions of three businesses in the United States. The total consideration recorded to acquire these three businesses, including the amounts paid at closing and additional payments made subsequent to closing based on the final agreed net worth of the assets acquired in each acquisition, was approximately $106.4 million. The Company recognized fair values of the assets acquired and liabilities assumed and allocated $71.5 million to goodwill and $19.9 million to other intangible assets, primarily customer relationships, with the balance allocated to net tangible assets and liabilities assumed. These fair values represented management’s calculations of the fair values as of the acquisition dates and were based on analysis of supporting information.



Year Ended June 30, 2012



During the year ended June 30, 2012, the Company completed acquisitions of five businesses, three in the United States and two supporting our international operations. The total consideration recorded to acquire these five businesses, including the amounts paid at closing, additional payments made subsequent to closing based on the final agreed net worth of the assets acquired in each acquisition, and the fair value at the date of acquisition of Tomorrow Communications Ltd (TCL) attributable to contingent consideration which may have been paid to the sellers based on events to occur in the first year subsequent to the acquisition date, was approximately $199.1 million. The Company recognized fair values of the assets acquired and liabilities assumed and allocated $142.2 million to goodwill and $43.2 million to other intangible assets, primarily customer relationships, with the balance allocated to net tangible assets and liabilities assumed. These fair values represented management’s calculations of the fair values as of the acquisition dates and were based on analysis of supporting information. The maximum contingent consideration associated with the TCL acquisition was approximately $6.0 million. During the year ended June 30, 2013, the Company determined that the maximum contingent consideration possible had been earned. One-half of this amount was paid in February 2013 and the remaining one-half was paid in February 2014.

CASH_AND_CASH_EQUIVALENTS

CASH AND CASH EQUIVALENTS	12 Months Ended
CASH AND CASH EQUIVALENTS	Jun. 30, 2014
Cash And Cash Equivalents [Abstract]	'
CASH AND CASH EQUIVALENTS	'

	NOTE 5. CASH AND CASH EQUIVALENTS



	Cash and cash equivalents consisted of the following (cost approximates fair value) (in thousands):




		June 30,
		2014		2013
	Cash	$	62,560	$	61,722
	Money market funds	$	1,901		2,615

	Total cash and cash equivalents	$	64,461	$	64,337

ACCOUNTS_RECEIVABLE

ACCOUNTS RECEIVABLE	12 Months Ended
ACCOUNTS RECEIVABLE	Jun. 30, 2014
Accounts Receivable [Abstract]	'
ACCOUNTS RECEIVABLE	'
	NOTE 6. ACCOUNTS RECEIVABLE

	Total accounts receivable, net of allowance for doubtful accounts of $3.7 million and $3.2 million at June 30, 2014 and 2013, respectively, consisted of the following (in thousands):


		June 30,
		2014		2013
	Billed receivables	$	473,527	$	468,254
	Billable receivables at end of period		84,784		102,963
	Unbilled receivables pending receipt of contractual documents authorizing billing		57,269		43,399

	Total accounts receivable, current		615,580		614,616
	Unbilled receivables, retainages and fee withholdings expected to be billed beyond the next 12 months		8,714		11,330

	Total accounts receivable	$	624,294	$	625,946

GOODWILL

GOODWILL	12 Months Ended
GOODWILL	Jun. 30, 2014
Goodwill [Abstract]	'
GOODWILL	'
	NOTE 7. GOODWILL



	The changes in the carrying amount of goodwill for the years ended June 30, 2014 and 2013 are as follows (in thousands):




	Balance at June 30, 2012	$	1,406,953
	Goodwill acquired		71,458
	Foreign currency translation		(1,446	)

	Balance at June 30, 2013	$	1,476,965

	Goodwill acquired		702,447
	Foreign currency translation		8,857

	Balance at June 30, 2014	$	2,188,569



	The FY2014 additions to goodwill are due to the second quarter acquisition of Six3 Systems and the FY2013 additions to goodwill are due to the acquisitions of three businesses in the United States. See Note 4 for additional information.

INTANGIBLE_ASSETS

INTANGIBLE ASSETS	12 Months Ended
INTANGIBLE ASSETS	Jun. 30, 2014
Intangible Assets [Abstract]	'
INTANGIBLE ASSETS	'

	NOTE 8. INTANGIBLE ASSETS



	Intangible assets consisted of the following (in thousands):




		June 30,
		2014			2013
	Intangible assets
	Customer contracts and related customer relationships	$	516,973		$	351,349
	Acquired technologies		27,177			27,177
	Covenants not to compete		3,472			3,401
	Other		1,601			1,639

	Intangible assets		549,223			383,566

	Less accumulated amortization
	Customer contracts and related customer relationships		(291,583	)		(254,840	)
	Acquired technologies		(23,119	)		(20,686	)
	Covenants not to compete		(3,131	)		(2,896	)
	Other		(980	)		(956	)

	Accumulated amortization		(318,813	)		(279,378	)

	Total intangible assets, net	$	230,410		$	104,188




	Intangible assets are primarily amortized on an accelerated basis over periods ranging from one to fifteen years. The weighted-average period of amortization for customer contracts and related customer relationships as of June 30, 2014 is 13.1 years, and the weighted-average remaining period of amortization is 11.5 years. The weighted-average period of amortization for acquired technologies as of June 30, 2014 is 9.4 years, and the weighted-average remaining period of amortization is 4.9 years.



	Amortization expense for the years ended June 30, 2014, 2013 and 2012 was $38.6 million, $30.5 million, and $35.1 million, respectively. Accumulated amortization as of June 30, 2014 for customer contracts and related customer relationships and for acquired technologies was $291.6 million and $23.1 million, respectively. Expected amortization expense for each of the fiscal years through June 30, 2019 and for years thereafter is as follows (in thousands):




		Amount
	Year ending June 30, 2015	$	39,446
	Year ending June 30, 2016		32,754
	Year ending June 30, 2017		29,429
	Year ending June 30, 2018		25,368
	Year ending June 30, 2019		20,903
	Thereafter		82,510

	Total intangible assets, net	$	230,410

PROPERTY_AND_EQUIPMENT

PROPERTY AND EQUIPMENT	12 Months Ended
PROPERTY AND EQUIPMENT	Jun. 30, 2014
Property And Equipment [Abstract]	'
PROPERTY AND EQUIPMENT	'

	NOTE 9. PROPERTY AND EQUIPMENT



	Property and equipment consisted of the following (in thousands):




		June 30,
		2014			2013
	Equipment and furniture	$	99,144		$	88,279
	Leasehold improvements		80,412			73,569

	Property and equipment, at cost		179,556			161,848
	Less accumulated depreciation and amortization		(111,071	)		(96,338	)

	Total property and equipment, net	$	68,485		$	65,510




	Depreciation expense, including amortization of leasehold improvements, was $22.7 million, $21.1 million and $19.1 million for the years ended June 30, 2014, 2013 and 2012, respectively.

CAPITALIZED_EXTERNAL_SOFTWARE_

CAPITALIZED EXTERNAL SOFTWARE DEVELOPMENT COSTS	12 Months Ended
CAPITALIZED EXTERNAL SOFTWARE DEVELOPMENT COSTS	Jun. 30, 2014
Capitalized External Software Development Costs [Abstract]	'
CAPITALIZED EXTERNAL SOFTWARE DEVELOPMENT COSTS	'

	NOTE 10. CAPITALIZED EXTERNAL SOFTWARE DEVELOPMENT COSTS



	A summary of changes in capitalized external software development costs, including costs capitalized and amortized during each of the years in the three-year period ended June 30, 2014, is as follows (in thousands):




		Year ended June 30,
		2014			2013			2012
	Capitalized software development costs, beginning of year	$	12,742		$	6,448		$	4,049
	Costs capitalized		7,742			8,842			4,216
	Amortization		(3,890	)		(2,548	)		(1,817	)

	Capitalized software development costs, end of year	$	16,594		$	12,742		$	6,448




	Capitalized software development costs are presented within other current assets and other long-term assets in the accompanying consolidated balance sheets.

ACCRUED_COMPENSATION_AND_BENEF

ACCRUED COMPENSATION AND BENEFITS	12 Months Ended
ACCRUED COMPENSATION AND BENEFITS	Jun. 30, 2014
Accrued Compensation And Benefits [Abstract]	'
ACCRUED COMPENSATION AND BENEFITS	'

	NOTE 11. ACCRUED COMPENSATION AND BENEFITS



	Accrued compensation and benefits consisted of the following (in thousands):




		June 30,
		2014		2013
	Accrued salaries and withholdings	$	100,503	$	84,168
	Accrued leave		63,392		65,501
	Accrued fringe benefits		19,466		16,869

	Total accrued compensation and benefits	$	183,361	$	166,538

OTHER_ACCRUED_EXPENSES_AND_CUR

OTHER ACCRUED EXPENSES AND CURRENT LIABILITIES	12 Months Ended
OTHER ACCRUED EXPENSES AND CURRENT LIABILITIES	Jun. 30, 2014
Other Accrued Expenses And Current Liabilities [Abstract]	'
OTHER ACCRUED EXPENSES AND CURRENT LIABILITIES	'

	NOTE 12. OTHER ACCRUED EXPENSES AND CURRENT LIABILITIES



	Other accrued expenses and current liabilities consisted of the following (in thousands):




		June 30,
		2014		2013
	Vendor obligations	$	88,617	$	97,281
	Deferred revenue		33,584		28,741
	Deferred acquisition consideration		—		4,791
	Other		19,651		16,553

	Total other accrued expenses and current liabilities	$	141,852	$	147,366




	The deferred acquisition consideration of $4.8 million as of June 30, 2013 related to contingent consideration due to the former shareholders of TCL (see Notes 4 and 22) and amounts retained by the Company to secure the Seller’s indemnification obligations in connection with the TCL and PSB Informatiesystemen BV acquisitions made by the Company’s international operations during the year ended June 30, 2012. The deferred acquisition consideration was settled during FY2014.

LONG_TERM_DEBT

LONG TERM DEBT	12 Months Ended
LONG TERM DEBT	Jun. 30, 2014
Long-Term Debt [Abstract]	'
LONG TERM DEBT	'
	NOTE 13. LONG TERM DEBT

	Long-term debt consisted of the following (in thousands):


			June 30,
			2014				2013
	Convertible notes payable		$	—			$	300,000
	Bank credit facility – term loans			810,469				131,250
	Bank credit facility – revolver loans			475,000				180,000

	Principal amount of long-term debt			1,285,469				611,250
	Less unamortized discount			—				(11,421	)
	Less unamortized debt issuance costs			(5,178	)			(3,522	)

	Total long-term debt			1,280,291				596,307
	Less current portion			(41,563	)			(295,517	)

	Long-term debt, net of current portion		$	1,238,728			$	300,790


	Bank Credit Facility

	The Company has a $1,681.3 million credit facility (the Credit Facility), which consists of an $850.0 million revolving credit facility (the Revolving Facility) and an $831.3 million term loan (the Term Loan). The Revolving Facility has subfacilities of $50.0 million for same-day swing line loan borrowings and $25.0 million for stand-by letters of credit. At any time and so long as no default has occurred, the Company has the right to increase the Revolving Facility or the Term Loan in an aggregate principal amount of up to the greater of $400.0 million or an amount subject to 2.75 times senior secured leverage, calculated assuming the Revolving Facility is fully drawn, with applicable lender approvals. The Credit Facility is available to refinance existing indebtedness and for general corporate purposes, including working capital expenses and capital expenditures. The Credit Facility was amended on November 15, 2013 in connection with the Company’s acquisition of Six3 Systems. See Note 4. Prior to the amendment, the Credit Facility consisted of a $750.0 million revolving credit facility and a $150.0 million term loan. In connection with the amendment, which allowed for the incurrence of $700.0 million of additional term loans and a $100.0 million increase in the Revolving Facility, the Company evaluated each creditor with ownership in the debt before and after the additional borrowings to determine whether the additional borrowings should be accounted for as a modification or an extinguishment of debt as it relates to each individual holder. As a result of this analysis, the Company recorded a $4.1 million loss on extinguishment within indirect costs and selling expenses in the three month period ended December 31, 2013. The Credit Facility matures on November 15, 2018.

	The Revolving Facility is a secured facility that permits continuously renewable borrowings of up to $850.0 million. As of June 30, 2014, the Company had $475.0 million outstanding under the Revolving Facility, no borrowings on the swing line and an outstanding letter of credit of $0.4 million. The Company pays a quarterly facility fee for the unused portion of the Revolving Facility.

	The Term Loan is a five-year secured facility under which principal payments are due in quarterly installments of $10.4 million through December 31, 2016 and $20.8 million thereafter until the balance is due in full on November 15, 2018. As of June 30, 2014, the Company had $810.5 million outstanding under the Term Loan.

	The interest rates applicable to loans under the Credit Facility are floating interest rates that, at the Company’s option, equal a base rate or a Eurodollar rate plus, in each case, an applicable rate based upon the Company’s consolidated total leverage ratio. As of June 30, 2014, the effective interest rate, including the impact of the Company’s floating-to-fixed interest rate swap agreements and excluding the effect of amortization of debt financing costs, for the outstanding borrowings under the Credit Facility was 2.26 percent.

	The Credit Facility requires the Company to comply with certain financial covenants, including a maximum senior secured leverage ratio, a maximum total leverage ratio and a minimum fixed charge coverage ratio. The Credit Facility also includes customary negative covenants restricting or limiting the Company’s ability to guarantee or incur additional indebtedness, grant liens or other security interests to third parties, make loans or investments, transfer assets, declare dividends or redeem or repurchase capital stock or make other distributions, prepay subordinated indebtedness and engage in mergers, acquisitions or other business combinations, in each case except as expressly permitted under the Credit Facility. As of June 30, 2014, the Company was in compliance with all of the financial covenants. A majority of the Company’s assets serve as collateral under the Credit Facility.

	The Company has capitalized $18.1 million of debt issuance costs associated with the Credit Facility. All debt issuance costs are being amortized from the date incurred to the expiration date of the Credit Facility. As of June 30, 2014, $5.2 million of the unamortized balance is included in long-term debt and $6.2 million is included in other long-term assets.

	Convertible Notes Payable

	Effective May 16, 2007, the Company issued at par value $300.0 million convertible notes (the Notes) which matured on May 1, 2014. Upon maturity the aggregate conversion value was $406.8 million. Accordingly, the Company paid note holders the outstanding principal value totaling $300.0 million in cash and issued approximately 1.4 million shares of our common stock for the remaining aggregate conversion value. Concurrently with the issuance of our common stock upon conversion, the Company received 1.4 million shares of our common stock pursuant to the terms of the call option hedge transaction described below. The Company included these shares within treasury stock on our consolidated balance sheet at June 30, 2014.

	The Company separately accounted for the liability and the equity (conversion option) components of the Notes and recognized interest expense on the Notes using an interest rate in effect for comparable debt instruments that do not contain conversion features. The effective interest rate for the Notes excluding the conversion option was determined to be 6.9 percent on initial recognition. The fair value of the liability component of the Notes was calculated to be $221.9 million at May 16, 2007, the date of issuance. The excess of the $300.0 million of gross proceeds over the $221.9 million fair value of the liability component, or $78.1 million, represents the fair value of the equity component, which was recorded, net of income tax effect, as additional paid-in capital within shareholders’ equity. This $78.1 million difference represents a debt discount that was amortized over the seven-year term of the Notes as a non-cash component of interest expense and was fully amortized at maturity. The components of interest expense related to the Notes were as follows (in thousands):


			Year ended June 30,
			2014				2013				2012
	Coupon interest		$	5,313			$	6,375			$	6,375
	Non-cash amortization of discount			11,421				12,868				12,024
	Amortization of issuance costs			683				820				820

	Total		$	17,417			$	20,063			$	19,219


	In connection with the issuance of the Notes, we entered into separate call option hedge and warrant transactions to reduce the potential dilutive impact upon the conversion of the Notes. The Call Options and the Warrants (each as defined below) are separate and legally distinct instruments that bind CACI and the counterparties and have no binding effect on the holders of the Notes.

	The Company purchased in a private transaction at a cost of $84.4 million call options (the Call Options) to purchase approximately 5.5 million shares of its common stock at a price equal to the conversion price of $54.65 per share. The cost of the Call Options was recorded as a reduction of additional paid-in capital. The Call Options allowed CACI to receive shares of its common stock from the counterparties equal to the amount of common stock related to the excess conversion value that CACI would pay the holders of the Notes upon conversion. The Company exercised the call options upon the maturity and conversion of the Notes and received 1.4 million shares of our common stock.

	For income tax reporting purposes, the Notes and the Call Options are integrated. This created an original issue discount for income tax reporting purposes, and therefore the cost of the Call Options is being accounted for as interest expense over the term of the Notes for income tax reporting purposes. The associated income tax benefit of $32.8 million to be realized for income tax reporting purposes over the term of the Notes was recorded as an increase in additional paid-in capital and a long-term deferred tax asset. The majority of this deferred tax asset was offset in the Company’s balance sheet by the $30.7 million deferred tax liability originally associated with the non-cash interest expense to be recorded for financial reporting purposes.

	In addition, the Company sold warrants (the Warrants) to issue approximately 5.5 million shares of CACI common stock at an exercise price of $68.31 per share. The proceeds from the sale of the Warrants totaled $56.5 million and were recorded as an increase to additional paid-in capital. The Warrants are expected to settle in FY2015.

	Cash Flow Hedges

	The Company periodically uses derivative financial instruments as part of a strategy to manage exposure to market risks associated with interest rate fluctuations as of June 30. The Company has entered into several floating-to-fixed interest rate swap agreement for an aggregate notional amount of $400.0 million which hedge a portion of the Company’s floating rate indebtedness. Subsequent to year end, the Company entered into one additional floating-to-fixed interest rate swap agreement for an aggregate notional amount of $100.0 million. The Company has designated the swaps as cash flow hedges. Unrealized gains are recognized as assets while unrealized losses are recognized as liabilities. The interest rate swap agreements are highly correlated to the changes in interest rates to which the Company is exposed. Unrealized gains and losses on these swaps are designated as effective or ineffective. The effective portion of such gains or losses is recorded as a component of accumulated other comprehensive income or loss, while the ineffective portion of such gains or losses is recorded as a component of interest expense. Realized gains and losses in connection with each required interest payment are reclassified from accumulated other comprehensive income or loss to interest expense. The Company does not hold or issue derivative financial instruments for trading purposes.

The effect of derivative instruments in the condensed consolidated statements of operations and accumulated other comprehensive loss for the years ended June 30, 2014, 2013 and 2012 is as follows (in thousands):


		Interest Rate Swaps
		2014				2013				2012
(Loss) gain recognized in other comprehensive income		$	(3,643	)		$	262			$	(1,332	)

Loss reclassified to earnings from accumulated other comprehensive loss		$	1,356			$	—			$	—


The aggregate maturities of long-term debt at June 30, 2014 are as follows (in thousands):


Year ending June 30,
2015		$	41,563
2016			41,563
2017			62,343
2018			83,125
2019			1,056,875

Principal amount of long-term debt			1,285,469
Less unamortized debt issuance costs			(5,178	)

Total long-term debt		$	1,280,291

LEASES

LEASES	12 Months Ended
LEASES	Jun. 30, 2014
Leases [Abstract]	'
LEASES	'
	NOTE 14. LEASES


	The Company conducts its operations from leased office facilities, all of which are classified as operating leases and expire over the next 10 years. Future minimum lease payments due under non-cancelable leases as of June 30, 2014, are as follows (in thousands):




	Year ending June 30:
	2015	$	49,065
	2016		45,583
	2017		39,609
	2018		29,916
	2019		25,086
	Thereafter		52,114

	Total minimum lease payments	$	241,373



	The minimum lease payments above are shown net of sublease rental income of $0.5 million scheduled to be received over the next 40 months under non-cancelable sublease agreements.



	Rent expense incurred under operating leases for the years ended June 30, 2014, 2013, and 2012 totaled $51.8 million, $50.6 million, and $46.4 million, respectively.

OTHER_LONGTERM_LIABILITIES

OTHER LONG-TERM LIABILITIES	12 Months Ended
OTHER LONG-TERM LIABILITIES	Jun. 30, 2014
Other Long-Term Liabilities [Abstract]	'
OTHER LONG-TERM LIABILITIES	'

	NOTE 15. OTHER LONG-TERM LIABILITIES



	Other long-term liabilities consisted of the following (in thousands):




		June 30,
		2014		2013
	Deferred rent, net of current portion	$	31,662	$	28,777
	Reserve for unrecognized tax benefits		9,138		6,384
	Deferred revenue		8,397		8,356
	Accrued post-retirement obligations		5,557		5,180
	Interest rate swap agreements		7,774	1,765
	Other		825		1,111

	Total other long-term liabilities	$	63,353	$	51,573




	Deferred rent liabilities result from recording rent expense and incentives for tenant improvements on a straight-line basis over the life of the respective lease.



	Accrued post-retirement obligations include projected liabilities for benefits the Company is obligated to provide under a long-term care, a group health, and an executive life insurance plan, each of which is unfunded. Plan benefits are provided to certain current and former executives, their dependents and other eligible employees, as defined. Post-retirement obligations also include accrued benefits under supplemental retirement benefit plans covering certain executives. The expense recorded under these plans was $0.3 million and $0.8 million during the years ended June 30, 2014 and 2013, respectively.



	The Company has entered into floating-to-fixed interest rate swap agreements related to a portion of the Company’s floating rate indebtedness (see Note 13). The fair value of the swap agreements as of June 30, 2014 and 2013 is a liability of approximately $7.8 million and $1.8 million, respectively.

BUSINESS_SEGMENT_CUSTOMER_AND_

BUSINESS SEGMENT, CUSTOMER AND GEOGRAPHIC INFORMATION	12 Months Ended
BUSINESS SEGMENT, CUSTOMER AND GEOGRAPHIC INFORMATION	Jun. 30, 2014
Business Segment Information [Abstract]	'
BUSINESS SEGMENT, CUSTOMER AND GEOGRAPHIC INFORMATION	'

	NOTE 16. BUSINESS SEGMENT, CUSTOMER AND GEOGRAPHIC INFORMATION



	Segment Information



	The Company reports operating results and financial data in two segments: domestic operations and international operations. Domestic operations provide information solutions and services to its customers. Its customers are primarily U.S. federal government agencies. Other customers of the Company’s domestic operations include state and local governments and commercial enterprises. The Company does not measure revenue or profit by its major market areas or service offerings, either for internal management or external financial reporting purposes, as it would be impractical to do so. The Company places employees in locations around the world in support of its clients. International operations offer services to both commercial and non-U.S. government customers primarily within the Company’s business systems and enterprise IT markets. The Company evaluates the performance of its operating segments based on net income attributable to CACI. Summarized financial information concerning the Company’s reportable segments is shown in the following tables.


								Total
			Domestic		International
			Operations		Operations
			(in thousands)
	Year Ended June 30, 2014
	Revenue from external customers		$	3,421,544	$	143,018		$	3,564,562
	Net income attributable to CACI			124,599		10,717			135,316
	Net assets			1,221,641		137,525			1,359,166
	Goodwill			2,099,821		88,748			2,188,569
	Total long-term assets			2,509,992		113,297			2,623,289
	Total assets			3,170,121		189,017			3,359,138
	Capital expenditures			13,737		1,542			15,279
	Depreciation and amortization			61,207		3,974			65,181

	Year Ended June 30, 2013
	Revenue from external customers		$	3,547,459	$	134,531		$	3,681,990
	Net income attributable to CACI			141,741		9,948			151,689
	Net assets			1,094,098		113,474			1,207,572
	Goodwill			1,397,272		79,693			1,476,965
	Total long-term assets			1,669,585		103,705			1,773,290
	Total assets			2,333,452		163,619			2,497,071
	Capital expenditures			13,667		1,772			15,439
	Depreciation and amortization			50,568		3,510			54,078

	Year Ended June 30, 2012
	Revenue from external customers		$	3,659,367	$	115,106		$	3,774,473
	Net income attributable to CACI			159,421		8,033			167,454
	Net assets			1,061,360		103,085			1,164,445
	Goodwill			1,325,814		81,139			1,406,953
	Total long-term assets			1,600,726		101,704			1,702,430
	Total assets			2,233,480		154,742			2,388,222
	Capital expenditures			16,613		1,671			18,284
	Depreciation and amortization			52,865		3,097			55,962



	Interest income and interest expense are not presented above as the amounts attributable to the Company’s international operations are insignificant.



	Customer Information



	The Company earned 94.0 percent, 94.4 percent and 94.5 percent of its revenue from various agencies and departments of the U.S. government for the years ended June 30, 2014, 2013 and 2012, respectively. Revenue by customer sector was as follows (dollars in thousands):




			Year ended June 30,
			2014		%			2013		%			2012	%
Department of Defense		$	2,578,024		72.3	%	$	2,735,102		74.3	%	$	2,944,924	78	%
Federal civilian agencies			771,662		21.7			741,053		20.1			620,870	16.5
Commercial and other			199,521		5.6			190,142		5.2			193,840	5.1
State and local governments			15,355		0.4			15,693		0.4			14,839	0.4

Total revenue		$	3,564,562		100	%	$	3,681,990		100	%	$	3,774,473	100	%

INVESTMENTS_IN_JOINT_VENTURES

INVESTMENTS IN JOINT VENTURES	12 Months Ended
INVESTMENTS IN JOINT VENTURES	Jun. 30, 2014
Investments In Joint Ventures [Abstract]	'
INVESTMENTS IN JOINT VENTURES	'

	NOTE 17. INVESTMENTS IN JOINT VENTURES



	AC FIRST LLC



	In July 2009, the Company entered into a joint venture with AECOM Government Services, Inc. (AGS), a division of AECOM Technology Corporation, called AC FIRST LLC (AC FIRST). The companies partnered in the venture to jointly pursue work under a U.S. Army contract. The Company owns 49 percent of AC FIRST and AGS owns 51 percent. The Company accounts for its interest in AC FIRST using the equity method of accounting. The carrying value of the Company’s investment in AC FIRST as of June 30, 2014 and 2013 was $5.6 million and $9.7 million, respectively, and is included in other long-term assets on the Company’s consolidated balance sheets. The Company’s maximum exposure to loss cannot be determined as any losses incurred by AC FIRST would be allocated to each partner based on the joint venture agreement, however, AC FIRST has not experienced any losses to date. During the years ended June 30, 2014 and 2013, the Company’s share of the net income of AC FIRST was $1.5 million and $2.6 million, respectively. These amounts are included in interest expense and other, net on the accompanying consolidated statements of operations. During the year ended June 30, 2014, the Company received $5.6 million in cash distributions and made no capital contributions. During the year ended June 30, 2013, the company received $6.2 million in cash distributions and made $1.4 million in capital contributions. The Company has determined that the primary beneficiary of AC FIRST is AGS as AGS owns the majority of AC FIRST and controls its operations.



	eVenture Technologies LLC



	eVenture Technologies LLC (eVentures) is a joint venture between the Company and ActioNet, Inc. (ActioNet), and is the entity through which work is being performed on a contract awarded in January 2007 by the United States Navy. The Company owns 60 percent of eVentures and ActioNet owns the remaining 40 percent. eVentures was funded through capital contributions made by the Company and by ActioNet. As the Company owns and controls more than 50 percent of eVentures, the Company’s results include those of eVentures. ActioNet’s share of eVentures’ assets, liabilities, results of operations, and cash flows have been accounted for as a noncontrolling interest.

OTHER_COMMITMENTS_AND_CONTINGE

OTHER COMMITMENTS AND CONTINGENCIES	12 Months Ended
OTHER COMMITMENTS AND CONTINGENCIES	Jun. 30, 2014
Commitments And Contingencies [Abstract]	'
OTHER COMMITMENTS AND CONTINGENCIES	'

	NOTE 18. OTHER COMMITMENTS AND CONTINGENCIES



	General Legal Matters



	The Company is involved in various lawsuits, claims, and administrative proceedings arising in the normal course of business. Management is of the opinion that any liability or loss associated with such matters, either individually or in the aggregate, will not have a material adverse effect on the Company’s operations and liquidity.



	Government Contracting



	Payments to the Company on cost-plus-fee and time-and-materials contracts are subject to adjustment upon audit by the Defense Contract Audit Agency (DCAA). The DCAA has completed its audits of the Company’s incurred cost submissions for the years ended June 30, 2006 and 2007 and on April 3, 2014 the Defense Contract Management Agency issued its final determinations regarding those incurred cost submissions. The Company has appealed both determinations. The DCAA is currently in the process of auditing the Company’s incurred cost submissions for the year ended June 30, 2008. In the opinion of management, adjustments that may result from these audits and the audits not yet started are not expected to have a material effect on the Company’s financial position, results of operations, or cash flows as the Company has accrued its best estimate of potential disallowances. Additionally, the DCAA continually reviews the cost accounting and other practices of government contractors, including the Company. In the course of those reviews, cost accounting and other issues are identified, discussed and settled.



	On March 26, 2012, the Company received a subpoena from the Defense Criminal Investigative Service seeking documents related to one of the Company’s contracts for the period of January 1, 2007 through March 26, 2012. The Company is providing documents responsive to the subpoena and cooperating fully with the government’s investigation. The Company has accrued its current best estimate of the potential outcome within its estimated range of zero to $1.8 million.



	On April 9, 2012, the Company received a letter from the Department of Justice (DoJ) informing the Company that the DoJ is investigating whether the Company violated the civil False Claims Act by submitting false claims to receive federal funds pursuant to a GSA contract. Specifically, the DoJ is investigating whether the Company failed to comply with contract requirements and applicable regulations by improperly billing for certain contracting personnel under the contract. The Company has not accrued any liability as based on its present knowledge of the facts, it does not believe an unfavorable outcome is probable.



	German Value-Added Taxes



	The Company is under audit by the German tax authorities for issues related to value-added tax returns. At this time, the Company has not been assessed any deficiency and, based on sound factual and legal precedent, believes it is in compliance with the applicable value-added tax regulations. The Company has not recognized any liability for this matter because an unfavorable outcome is not considered probable. The Company estimates the range of reasonably possible losses to be between $1.5 million and $3.5 million.



	Virginia Sales and Use Tax Audit



	The Company is under audit for sales and use tax related issues by the Commonwealth of Virginia. The Company has accrued its current best estimate of the potential outcome within its estimated range of $2.8 million to $4.8 million.

INCOME_TAXES

INCOME TAXES	12 Months Ended
INCOME TAXES	Jun. 30, 2014
Income Tax Disclosure [Abstract]	'
INCOME TAXES	'

	NOTE 19. INCOME TAXES



	The domestic and foreign components of income before provision for income taxes are as follows (in thousands):




			Year ended June 30,
			2014				2013				2012
	Domestic		$	204,879			$	231,342			$	263,790
	Foreign			13,763				12,694				11,201

	Income before income taxes		$	218,642			$	244,036			$	274,991




	The components of income tax expense are as follows (in thousands):




			Year ended June 30,
			2014				2013				2012
	Current:
	Federal		$	53,055			$	47,038			$	76,874
	State and local			11,456				10,767				16,678
	Foreign			3,256				3,440				3,332

	Total current			67,767				61,245				96,884


	Deferred:
	Federal			12,580				26,218				9,000
	State and local			2,680				5,313				1,458
	Foreign			299				(429	)			195

	Total deferred			15,559				31,102				10,653

	Total income tax expense		$	83,326			$	92,347			$	107,537




	Income tax expense differs from the amounts computed by applying the statutory U.S. income tax rate of 35 percent as a result of the following (in thousands):




			Year ended June 30,
			2014				2013				2012
	Expected tax expense computed at federal rate		$	76,525			$	85,413			$	96,247
	State and local taxes, net of federal benefit			9,188				10,452				11,788
	(Nonincludible) nondeductible items			1,150				(929	)			2,424
	Incremental effect of foreign tax rates			(1,885	)			(1,376	)			(1,026	)
	Other			(1,652	)			(1,213	)			(1,896	)

	Total income tax expense		$	83,326			$	92,347			$	107,537




The tax effects of temporary differences that give rise to deferred taxes are presented below (in thousands):




		June 30,
		2014				2013
Deferred tax assets:
Deferred compensation and post-retirement obligations		$	35,360			$	34,597
Reserves and accruals			28,176				27,640
Stock-based compensation			8,301				13,409
Deferred rent			4,632				3,522
Other			13,127				7,900

Total deferred tax assets			89,596				87,068

Deferred tax liabilities:
Goodwill and other intangible assets			(243,035	)			(162,739	)
Unbilled revenue			(6,948	)			(11,583	)
Prepaid expenses			(4,986	)			(4,638	)
Other			(9,780	)			(9,040	)

Total deferred tax liabilities			(264,749	)			(188,000	)

Net deferred tax liability		$	(175,153	)		$	(100,932	)




The Company is subject to income taxes in the U.S. and various state and foreign jurisdictions. Tax statutes and regulations within each jurisdiction are subject to interpretation and require the application of significant judgment. The Company’s consolidated federal income tax returns through June 30, 2009 are no longer subject to audit. The Company is currently under examination by two state jurisdictions and one foreign jurisdiction for years ended June 30, 2004 through June 30, 2012. The Company does not expect the resolution of these examinations to have a material impact on its results of operations, financial condition or cash flows.



During the years ended June 30, 2014 and 2013, the Company’s income tax expense was favorably impacted by non-taxable gains on assets invested in corporate-owned life insurance (COLI) policies, and tax benefits related to deductions claimed for income from domestic production activities.



In connection with the issuance of the Notes referred to in Note 13, there was original issue discount (OID) created for income tax purposes. Over the term of the Notes, this OID generated additional interest expense for income tax reporting purposes.



As of June 30, 2013, the Company corrected the classification of $4.2 million of deferred tax liabilities by reclassifying this amount from non-current deferred tax liabilities to a reduction of current deferred tax assets and concluded that this reclassification was not material.



U.S. income taxes have not been provided for undistributed earnings of foreign subsidiaries that have been permanently reinvested outside the United States. As of June 30, 2014, the estimated deferred tax liability associated with these undistributed earnings is approximately $8.8 million.



The Company’s total liability for unrecognized tax benefits as of June 30, 2014, 2013 and 2012 was approximately $9.6 million, $8.2 million and $7.0 million, respectively. Of the unrecognized tax benefits at June 30, 2014, 2013, and 2012, $2.4 million, $2.6 million and $2.4 million, respectively, if recognized, would impact the Company’s effective tax rate. A reconciliation of the beginning and ending amount of unrecognized benefits is shown in the table below (in thousands):




		Year ended June 30,
		2014				2013				2012
Beginning of year		$	8,184			$	7,013			$	5,897
Additions based on current year tax positions			2,023				1,261				1,181
Lapse of statute of limitations			(426	)			(90	)			(65	)
Settlement with taxing authorities			(145	)			—				—

End of year		$	9,636			$	8,184			$	7,013




The Company recognizes net interest and penalties as a component of income tax expense. Over the next 12 months, the Company does not expect a significant increase or decrease in the unrecognized tax benefits recorded at June 30, 2014. As of June 30, 2014, approximately $9.2 million of the unrecognized tax benefits are included in other long-term liabilities, with the remainder included in other balance sheet accounts.

RETIREMENT_SAVINGS_PLANS

RETIREMENT SAVINGS PLANS	12 Months Ended
RETIREMENT SAVINGS PLANS	Jun. 30, 2014
Retirement Savings Plans [Abstract]	'
RETIREMENT SAVINGS PLANS	'
	NOTE 20. RETIREMENT SAVINGS PLANS

	401(k) Plan

	The Company maintains a defined contribution plan under Section 401(k) of the Internal Revenue Code, the CACI $MART Plan (the 401(k) Plan). Employees can contribute up to 75 percent (subject to certain statutory limitations) of their total cash compensation. The Company provides matching contributions equal to 50 percent of the amount of salary deferral employees elect, up to 6 percent of each employee’s total calendar year cash compensation, as defined. The Company may also make discretionary profit sharing contributions to the 401(k) Plan. Employee contributions vest immediately. Employer contributions vest in full after three years of employment. Total 401(k) Plan Company contribution expense for the years ended June 30, 2014, 2013, and 2012 were $21.9 million, $26.8 million, and $26.1 million, respectively. Effective January 1, 2013, the Company amended the 401(k) Plan to provide that as of July 1, 2013, 401(k) Plan participants must be employed on the last day of the Plan year to be eligible for matching contributions.

	Six3 Retirement Savings Plans

	The Company maintains qualified defined contribution 401(k) profit-sharing plans that cover eligible employees. Participants may make voluntary contributions to the plans up to the maximum amount allowable by law. The Company will match employee contributions to the plans in accordance with the plan documents. Matching contributions vest to participants immediately. Company contribution expense for the year ended June 30, 2014 was $1.1 million.

	The Company maintains several qualified 401(k) profit-sharing plans (PSP) that cover eligible employees. Employees are eligible to participate in the PSP beginning on the first of the month following the start of employment and attainment of age 18. Under the PSP, the Company may make discretionary contributions based on a percentage of the total compensation of all eligible participants. Company contribution expense for the year ended June 30, 2014 was $10.4 million.

	International Operations Defined Contribution Plans

	The Company maintains defined contribution pension plans in the U.K. and in the Netherlands. In the U.K., employees can elect the amount of pension contributions that they wish to make subject to certain U.K. tax limits. Under the Dutch plan, the amounts the Company contributes are based on the employee’s age. In both countries, the contributions are deemed to be company contributions and vest immediately. Contributions to these plans and their predecessor plans for the years ended June 30, 2014, 2013, and 2012 were $1.1 million, $2.0 million, and $1.8 million, respectively.

	Supplemental Savings Plan

	The Company maintains the Supplemental Savings Plan through which, on a calendar year basis, officers at the director level and above can elect to defer for contribution to the Supplemental Savings Plan up to 50 percent of their base compensation and up to 100 percent of their bonuses and commissions. The Company provides a contribution of 5 percent of compensation for each participant’s compensation that exceeds the limit as set forth in IRC 401(a)(17) (currently $260,000 per year). The Company also has the option to make annual discretionary contributions. Company contributions vest over a 5-year period, and vesting is accelerated in the event of a change of control of the Company. Participant deferrals and Company contributions will be credited with the rate of return based on the investment options and asset allocations selected by the Participant. Participants may change their asset allocation as often as daily, if they so choose. A Rabbi Trust has been established to hold and provide a measure of security for the investments that finance benefit payments. Distributions from the Supplemental Savings Plan are made upon retirement, termination, death, or total disability. The Supplemental Savings Plan also allows for in-service distributions.

	Supplemental Savings Plan obligations due to participants totaled $84.4 million at June 30, 2014, of which $6.9 million is included in accrued compensation and benefits in the accompanying consolidated balance sheet. Supplemental Savings Plan obligations increased by $1.7 million during the year ended June 30, 2014, consisting of $7.3 million of investment gains, $6.6 million of participant compensation deferrals, and $0.3 million of Company contributions, offset by $12.5 million of distributions.

	The Company maintains investment assets in a Rabbi Trust to offset the obligations under the Supplemental Savings Plan. The value of the investments in the Rabbi Trust was $88.5 million at June 30, 2014. Investment gains were $7.2 million for the year ended June 30, 2014.

	Contribution expense for the Supplemental Savings Plan during the years ended June 30, 2014, 2013, and 2012, was $0.3 million, $1.0 million, and $1.2 million, respectively.

STOCK_PLANS_AND_STOCKBASED_COM

STOCK PLANS AND STOCK-BASED COMPENSATION	12 Months Ended
STOCK PLANS AND STOCK-BASED COMPENSATION	Jun. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
STOCK PLANS AND STOCK-BASED COMPENSATION	'

	NOTE 21. STOCK PLANS AND STOCK-BASED COMPENSATION



	For stock options, SSARs and non-performance-based RSUs, stock-based compensation expense is recognized on a straight-line basis ratably over the respective vesting periods. For RSUs subject to graded vesting schedules for which vesting is based on achievement of a performance metric in addition to grantee service (performance-based RSUs), stock-based compensation expense is recognized on an accelerated basis by treating each vesting tranche as if it was a separate grant. A summary of the components of stock-based compensation expense recognized during the years ended June 30, 2014, 2013, and 2012, together with the income tax benefits realized, is as follows (in thousands):




			Year ended June 30,
			2014			2013			2012
	Stock-based compensation included in indirect costs and selling expense:
	Restricted stock and RSU expense		$	11,516		$	8,150		$	13,526
	SSARs and non-qualified stock option expense			41			682			1,973

	Total stock-based compensation expense		$	11,557		$	8,832		$	15,499

	Income tax benefit recognized for stock-based compensation expense		$	4,392		$	3,342		$	6,062




	The Company recognizes the effect of expected forfeitures of equity grants by estimating an expected forfeiture rate for grants of equity instruments. Amounts recognized for expected forfeitures are subsequently adjusted periodically and at major vesting dates to reflect actual forfeitures.



	The incremental income tax benefits realized upon the exercise or vesting of equity instruments are reported as financing cash flows. During the years ended June 30, 2014, 2013, and 2012, the Company recognized $4.7 million, $1.6 million, and $0.4 million of excess tax benefits, respectively, which have been reported as financing cash inflows in the accompanying consolidated statements of cash flows.



	Equity Grants and Valuation



	Under the terms of its 2006 Stock Incentive Plan (the 2006 Plan), the Company may issue, among others, non-qualified stock options, restricted stock, RSUs, SSARs, and performance awards, collectively referred to herein as equity instruments. During the periods presented, all equity instrument grants were made in the form of RSUs. Annual grants under the 2006 Plan are generally made to the Company’s key employees during the first quarter of the Company’s fiscal year and to members of the Company’s Board of Directors during the second quarter of the Company’s fiscal year. With the approval of its Chief Executive Officer, the Company also issues equity instruments to strategic new hires and to employees who have demonstrated superior performance.



	In September 2013, the Company made its annual grant to key employees consisting of 202,170 Performance-based Restricted Stock Units (PRSUs). The final number of such PRSUs that will be considered earned by participants and vest is based on the achievement of a specified net after tax profit (NATP) for the year ended June 30, 2014 and on the average share price of Company stock for the 90 day period ending September 13, 2014 as compared to the average share price for the 90 day period ended September 13, 2013. No PRSUs will be earned if the specified NATP for the fiscal year ending June 30, 2014 is not met. If NATP for the year ending June 30, 2014 exceeds the specified NATP and the average share price of the Company’s stock for the 90 day period ending September 13, 2014 exceeds the average share price of the Company’s stock for the 90 day period ended September 13, 2013 by 100 percent or more, then an additional 202,170 RSUs could be earned by participants. This is the maximum number of additional PRSUs that can be earned related to the September



	2013 annual grant. The specified NATP for the year ended June 30, 2014 was met. In addition to the performance and market conditions, there is a service vesting condition which stipulates that 50 percent of the earned award will vest on September 1, 2016 and 50 percent of the earned award will vest on September 1, 2017, in both cases dependent upon continuing service by the grantee as an employee of the Company, unless the grantee is eligible for earlier vesting upon retirement, as defined.



	The Company also issues equity instruments in the form of RSUs under its Management Stock Purchase Plan (MSPP) and Director Stock Purchase Plan (DSPP). In addition, annual grants are made to members of the Company’s Board of Directors in the form of a set dollar value of RSUs. Grants to members of the Board of Directors vest based on the passage of time and continued service as a Director of the Company.



	Upon the exercise of stock options and SSARs and the vesting of restricted shares and RSUs, the Company fulfills its obligations under the equity instrument agreements by either issuing new shares of authorized common stock or by issuing shares from treasury. The total number of shares authorized by shareholders for grants under the 2006 Plan and its predecessor plan was 12,450,000 as of June 30, 2014. The aggregate number of grants that may be made may exceed this approved amount as forfeited SSARs, stock options, restricted stock and RSUs, and vested but unexercised SSARs and stock options that expire, become available for future grants. As of June 30, 2014, cumulative grants of 13,166,042 equity instruments underlying the shares authorized have been awarded, and 4,106,751 of these instruments have been forfeited.



	Non-qualified stock options granted prior to January 1, 2004 lapse and are no longer exercisable if not exercised within ten years of the date of grant. Equity instruments granted on or after January 1, 2004 have a term of seven years. For SSAR and stock option awards, grantees whose employment has terminated have 60 days after their termination date to exercise vested SSARs and stock options, or they forfeit their right to the instruments. Grantees whose employment is terminated due to death or permanent disability will vest in 100 percent of their equity instrument grants. Also, effective for grants made on or after July 1, 2004, grantees who were age 62 on or before July 1, 2008 who retire on or after age 65 will vest in 100 percent of their equity instrument grants upon retirement, with the exception of performance-based RSUs, which must be held at least until the measurement period is complete. Grantees who were not age 62 on or before July 1, 2008, who retire on or after age 62, vest in a prorated portion of their equity instrument grants upon retirement, based upon their service during the vesting period.



	Stock options vest ratably over a three, four, or five year period, depending on the year of grant. Restricted shares and most non-performance-based RSUs vest in full three years from the date of grant. RSUs granted to the Company’s Chief Executive Officer in February 2013 and to the Company’s Chief Operating Officer in February 2012 have longer vesting periods. SSARs granted in prior years as part of the Company’s then customary annual award vest ratably over a five year period in a manner consistent with the vesting of stock options.



Other than performance-based RSUs which contain a market-based element, the fair value of RSU grants is determined based on the closing price of a share of the Company’s common stock on the date of grant. The fair value of RSUs with market-based vesting features is also measured on the grant date, but is done so using a binomial lattice model. The weighted-average fair value of RSUs granted during the years ended June 30, 2014, 2013, and 2012, was $72.17, $59.07, and $47.34, respectively.





No stock options or SSARs were granted during the years ended June 30, 2014, 2013 or 2012. Activity for all outstanding SSARs and stock options, and the corresponding exercise price and fair value information, for the years ended June 30, 2014, 2013, and 2012, is as follows:




		Number			Exercise Price			Weighted			Weighted
		of Shares						Average			Average
								Exercise			Grant Date
								Price			Fair Value
Outstanding, June 30, 2011			2,110,304			$34.10 – $65.04		$	52.78		$	20.77

Exercisable, June 30, 2011			1,177,209			34.10 – 65.04			55.19			22.17

Exercised			(365,306	)		34.10 – 62.48			48.72			19.1
Forfeited			(32,630	)		45.77 – 54.39			48.64			17.95
Expired			(28,670	)		48.83 – 62.48			60.2			19.19

Outstanding, June 30, 2012			1,683,698			34.10 – 65.04			53.62			21.21

Exercisable, June 30, 2012			1,362,451			34.10 – 65.04			54.79			22.01

Exercised			(838,618	)		34.10 – 58.40			48.76			18.93
Forfeited			(10,350	)		42.95 – 49.36			48.37			17.03
Expired			(559,180	)		36.13 – 65.04			63.46			26.51

Outstanding, June 30, 2013			275,550			37.67 – 59.30			48.62			17.54

Exercisable, June 30, 2013			243,170			37.67 – 59.30			48.58			17.6

Exercised			(180,370	)		45.77 – 49.36			48.53			17.81
Forfeited			(1,150	)		49.36			49.36			17.12
Expired			(2,080	)		49.36			49.36			17.12

Outstanding, June 30, 2014			91,950			37.67 – 59.30			48.77			17.02

Exercisable, June 30, 2014			91,950			$37.67 – $59.30		$	48.77		$	17.02








Changes in the number of unvested SSARs and stock options and in unvested restricted stock and RSUs during each of the years in the three-year period ended June 30, 2014, 2013 and 2012, together with the corresponding weighted-average fair values, are as follows:




		SSARs and						Restricted Stock and
		Stock Options						Restricted Stock Units
		Number			Weighted			Number			Weighted
		of Shares			Average			of Shares			Average
					Grant Date						Grant Date
					Fair Value						Fair Value
Unvested at June 30, 2011			933,095		$	18.99			1,322,101		$	45.23

Granted			—			—			817,918			47.34
Vested			(579,218	)		19.72			(266,658	)		48.09
Forfeited			(32,630	)		17.95			(222,040	)		46.59

Unvested at June 30, 2012			321,247			17.8			1,651,321			45.97

Granted			—			—			605,277			59.07
Vested			(278,517	)		17.92			(347,497	)		47.27
Forfeited			(10,350	)		17.03			(866,355	)		53.04

Unvested at June 30, 2013			32,380			17.02			1,042,746			47.74

Granted			—			—			254,356			72.17
Vested			(31,230	)		17.02			(360,857	)		45.07
Forfeited			(1,150	)		17.12			(98,003	)		54.94

Unvested at June 30, 2014			—		$	—			838,242		$	55.39




Information regarding the cash proceeds received, and the intrinsic value and total tax benefits realized resulting from stock option exercises is as follows (in thousands):




		Year ended June 30,
		2014			2013			2012
Cash proceeds received		$	—		$	13,050		$	7,466
Intrinsic value realized		$	3,868		$	6,594		$	3,865
Income tax benefit realized		$	1,470		$	2,595		$	1,521



The total intrinsic value of RSUs that vested during the years ended June 30, 2014, 2013, and 2012 was $23.1 million, $17.6 million and $13.4 million, respectively, and the tax benefit realized for these vestings was $8.8 million, $6.9 million and $5.3 million, respectively.



The grant date fair value of stock options that vested during each of the years in the three-year period ended June 30, 2014 was $0.5 million, $5.0 million, and $11.4 million, respectively.





Outstanding SSAR and Stock Option Information



Information regarding the SSARs and stock options outstanding and exercisable as of June 30, 2014, is as follows (intrinsic value in thousands):




		SSARs and Options Outstanding and Exercisable
Range of exercise Price		Number of			Weighted			Weighted			Intrinsic		Number of
		Instruments			Average			Average			Value		Instruments
					Exercise			Remaining
					Price			Contractual
								Life
$30.00-$39.99			6,400		$	37.67			1.14		$	208		6,400
$40.00-$49.99			75,550			48.31			0.98			1,655		75,550
$50.00-$59.99			10,000			59.3			0.56			109		10,000

			91,950								$	1,972		91,950




As of June 30, 2014, there was no unrecognized compensation cost related to SSARs and stock options and $21.5 million of unrecognized compensation cost related to restricted stock and RSUs scheduled to be recognized over a weighted-average period of 3.1 years.



Stock Purchase Plans



The Company adopted the 2002 Employee Stock Purchase Plan (ESPP), MSPP and DSPP in November 2002, and implemented these plans beginning July 1, 2003. There are 1,250,000, 500,000, and 75,000 shares authorized for grants under the ESPP, MSPP and DSPP, respectively.



The ESPP allows eligible full-time employees to purchase shares of common stock at 95 percent of the fair market value of a share of common stock on the last day of the quarter. The maximum number of shares that an eligible employee can purchase during any quarter is equal to two times an amount determined as follows: 20 percent of such employee’s compensation over the quarter, divided by 95 percent of the fair market value of a share of common stock on the last day of the quarter. The ESPP is a qualified plan under Section 423 of the Internal Revenue Code and, for financial reporting purposes, was amended effective July 1, 2005 so as to be considered non-compensatory. Accordingly, there is no stock-based compensation expense associated with shares acquired under the ESPP. As of June 30, 2014, participants have purchased 991,197 shares under the ESPP, at a weighted-average price per share of $47.46. Of these shares, 52,964 were purchased by employees at a weighted-average price per share of $66.00 during the year ended June 30, 2014. During the year ended June 30, 2013, the Company established a 10b5-1 plan to facilitate the open market purchase of shares of Company stock to satisfy its obligations under the ESPP.



The MSPP provides those senior executives with stock holding requirements a mechanism to receive RSUs in lieu of up to 100 percent of their annual bonus. For the fiscal years ended June 30, 2014, 2013 and 2012, RSUs awarded in lieu of bonuses earned are granted at 85 percent of the closing price of a share of the Company’s common stock on the date of the award, as reported by the New York Stock Exchange. RSUs granted under the MSPP vest at the earlier of 1) three years from the grant date, 2) upon a change of control of the Company, 3) upon a participant’s retirement at or after age 65, or 4) upon a participant’s death or permanent disability. Vested RSUs are settled in shares of common stock. The Company recognizes the value of the discount applied to RSUs granted under the MSPP as stock compensation expense ratably over the three-year vesting period.





The DSPP allows directors to elect to receive RSUs at the market price of the Company’s common stock on the date of the award in lieu of up to 100 percent of their annual retainer fees. Vested RSUs are settled in shares of common stock.



Activity related to the MSPP and the DSPP during the year ended June 30, 2014 is as follows:




		MSPP			DSPP
RSUs outstanding, June 30, 2013			29,291			137
Granted			542			—
Issued			(13,832	)		(137	)
Forfeited			(2,201	)		—

RSUs outstanding, June 30, 2014			13,800			—

Weighted average grant date fair value as adjusted for the applicable discount		$	43.99

Weighted average grant date fair value					$	—

FAIR_VALUE_OF_FINANCIAL_INSTRU

FAIR VALUE OF FINANCIAL INSTRUMENTS

12 Months Ended

Jun. 30, 2014

Fair Value Disclosures [Abstract]

FAIR VALUE OF FINANCIAL INSTRUMENTS

NOTE 22. FAIR VALUE OF FINANCIAL INSTRUMENTS

ASC 820, Fair Value Measurements and Disclosures, defines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements. Fair value is the price that would be received to sell an asset or paid to transfer a liability between market participants in an orderly transaction. The market in which the reporting entity would sell the asset or transfer the liability with the greatest volume and level of activity for the asset or liability is known as the principal market. When no principal market exists, the most advantageous market is used. This is the market in which the reporting entity would sell the asset or transfer the liability with the price that maximizes the amount that would be received or minimizes the amount that would be paid. Fair value is based on assumptions market participants would make in pricing the asset or liability. Generally, fair value is based on observable quoted market prices or derived from observable market data when such market prices or data are available. When such prices or inputs are not available, the reporting entity should use valuation models.

The Company’s financial assets and liabilities recorded at fair value on a recurring basis are categorized based on the priority of the inputs used to measure fair value. The inputs used in measuring fair value are categorized into three levels, as follows:

•

Level 1 Inputs—unadjusted quoted prices in active markets for identical assets or liabilities.

•

Level 2 Inputs—unadjusted quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets and liabilities in markets that are not active, inputs other than quoted prices that are observable, and inputs derived from or corroborated by observable market data.

•

Level 3 Inputs—amounts derived from valuation models in which unobservable inputs reflect the reporting entity’s own assumptions about the assumptions of market participants that would be used in pricing the asset or liability.

As of June 30, 2014 and 2013, the Company’s financial instruments measured at fair value included non-COLI money market investments and mutual funds held in the Company’s supplemental retirement savings plan (the Supplemental Savings Plan), interest rate swaps and contingent consideration in connection with business combinations.

The following table summarizes the financial assets and liabilities measured at fair value on a recurring basis as of June 30, 2014 and 2013, and the level they fall within the fair value hierarchy (in thousands):

Financial Statement

Fair

As of June 30,

Description of Financial Instrument

Classification

Value

2014

2013

Hierarchy

Fair Value

Non-COLI assets held in connection with the Supplemental Savings Plan

Long-term asset

Level 1

—

830

Contingent Consideration

Current liability

Level 3

—

2,977

Interest rate swap agreements

Other long-term liabilities

Level 2

7,774

1,765

Changes in the fair value of the assets held in connection with the Supplemental Savings Plan are recorded in indirect costs and selling expenses.

Contingent consideration at June 30, 2013 related to the requirement that the Company pay contingent consideration in the event that TCL achieved certain specified earnings results during the one year period subsequent to acquisition (see Note 4). The Company determined the fair value of contingent consideration using a valuation model which included the evaluation of all possible outcomes and the application of an appropriate discount rate. At the end of each reporting period, the fair value of the contingent consideration was remeasured and any changes were recorded in indirect costs and selling expenses. During the years ended June 30, 2014 and 2013, this remeasurement did not result in a significant change to the liability initially recorded. The maximum contingent consideration associated with the TCL acquisition was approximately $6.0 million. During the year ended June 30, 2013, the Company determined the maximum contingent consideration possible had been earned. One-half of this amount was paid to the former shareholders of TCL in February 2013 and the other one-half was paid in February 2014.

During the years ended June 30, 2012 and 2014, the Company entered into interest rate swap agreements to manage its interest rate risk. The valuation of these instruments is determined using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves. To comply with the provisions of ASC 820, the Company incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements.

EARNINGS_PER_SHARE

EARNINGS PER SHARE	12 Months Ended
EARNINGS PER SHARE	Jun. 30, 2014
Earnings Per Share [Abstract]	'
EARNINGS PER SHARE	'

	NOTE 23. EARNINGS PER SHARE



	Earnings per share and the weighted-average number of diluted shares are computed as follows (in thousands, except per share data):




		Year ended June 30,
		2014		2013		2012
	Net income attributable to CACI	$	135,316	$	151,689	$	167,454

	Weighted-average number of basic shares outstanding during the period		23,429		23,010		27,077
	Dilutive effect of SSARs/stock options and RSUs/restricted shares after application of treasury stock method		441		743		879
	Dilutive effect of the Notes		1,285		132		111
	Dilutive effect of accelerated share repurchase agreement		—		—		44

	Weighted-average number of diluted shares outstanding during the period		25,155		23,885		28,111

	Basic earnings per share	$	5.78	$	6.59	$	6.18

	Diluted earnings per share	$	5.38	$	6.35	$	5.96




	The total number of weighted-average common stock equivalents excluded from the diluted per share computations due to their anti-dilutive effects for the years ended June 30, 2013 and 2012, were seventeen thousand and 0.7 million, respectively. There were no such effects for the year ended June 30, 2014 because the Company’s average stock price exceeded the exercise price of all shares outstanding. The calculation of diluted earnings per share for the year ended June 30, 2014 includes the shares underlying the performance-based RSUs granted in September 2013, September 2011 and September 2010. The shares underlying the performance-based RSUs granted in September 2012 are excluded in the calculation of diluted earnings per share for the years ended June 30, 2014 and 2013, as the NATP performance metric associated with the shares was not met and no shares were issued under this grant. On May 1, 2014 the Company issued 1.4 million shares of common stock in accordance with the Notes and received 1.4 million shares of our common stock pursuant to the terms of the call option hedge transaction. The contingently issuable shares that may have resulted from the conversion of the Notes were included in the Company’s diluted share count for the fiscal years ended June 30, 2014, 2013 and 2012 because the Company’s average stock price during the first, second, and third quarters of the year ended June 30, 2014, during the first, third and fourth quarters of the year ended June 30, 2013, and during the third quarter of the year ended June 30, 2012 was above the conversion price of $54.65 per share. The contingently issuable shares that may result from the maturity of the Warrants were included in the computation of diluted earnings per share because the Company’s average stock price during the second, third, and fourth quarters of the year ended June 30, 2014 was greater than the Warrants’ exercise price of $68.31. The Warrants were excluded from the computation of the Company’s diluted earnings per share for the years ended June 30, 2013 and 2012 because the Warrants’ exercise price was greater than the average market price of a share of Company common stock.



	On August 29, 2011, the Company entered into an accelerated share repurchase agreement with Bank of America N.A. (BofA) under which it paid an initial $209.7 million for four million shares of the Company’s common stock. The Company settled the accelerated share repurchase agreement in May 2012 by paying BofA an additional $16.3 million. The Company recorded the total amount paid to BofA of $226.0 million as treasury stock in its consolidated balance sheet as of June 30, 2012. This represents an average price of $56.51 per share under the accelerated share repurchase agreement.



	In June 2012, the Company’s Board of Directors approved a share repurchase program of up to four million shares of CACI’s common stock. The Company entered into two 10b5-1 plans under which the Company repurchased two million shares of CACI’s common stock in June 2012 and two million shares of CACI’s common stock in July 2012, at an average price of $53.72 per share.



	Shares outstanding during the year ended June 30, 2013 and 2012, reflect the repurchase of shares of CACI’s common stock under the accelerated share repurchase agreement and the 10b5-1 plans described above.

QUARTERLY_FINANCIAL_DATA_UNAUD

QUARTERLY FINANCIAL DATA (UNAUDITED)	12 Months Ended
QUARTERLY FINANCIAL DATA (UNAUDITED)	Jun. 30, 2014
Quarterly Financial Data [Abstract]	'
QUARTERLY FINANCIAL DATA (UNAUDITED)	'
	NOTE 25. QUARTERLY FINANCIAL DATA (UNAUDITED)

	This data is unaudited, but in the opinion of management, includes and reflects all adjustments that are normal and recurring in nature, and necessary, for a fair presentation of the selected data for these interim periods. Quarterly condensed financial operating results of the Company for the years ended June 30, 2014 and 2013, are presented below (in thousands except per share data).


		Year ended June 30, 2014
		First		Second		Third		Fourth
	Revenue	$	864,265	$	894,186	$	900,393	$	905,718
	Income from operations	$	61,182	$	66,454	$	60,532	$	69,235
	Net income attributable to CACI	$	32,992	$	34,962	$	30,828	$	36,534
	Basic earnings per share	$	1.42	$	1.49	$	1.31	$	1.55
	Diluted earnings per share	$	1.33	$	1.38	$	1.19	$	1.49
	Weighted-average shares outstanding:
	Basic		23,314		23,433		23,473		23,498
	Diluted		24,835		25,297		25,973		24,517


		Year ended June 30, 2013
		First		Second		Third		Fourth
	Revenue	$	931,236	$	931,627	$	906,196	$	912,931
	Income from operations	$	64,737	$	69,582	$	68,620	$	67,902
	Net income attributable to CACI	$	35,708	$	39,676	$	38,367	$	37,938
	Basic earnings per share	$	1.55	$	1.74	$	1.67	$	1.64
	Diluted earnings per share	$	1.49	$	1.69	$	1.62	$	1.56
	Weighted-average shares outstanding:
	Basic		23,032		22,852		23,021		23,136
	Diluted		23,980		23,537		23,706		24,318

VALUATION_AND_QUALIFYING_ACCOU

VALUATION AND QUALIFYING ACCOUNTS	12 Months Ended
VALUATION AND QUALIFYING ACCOUNTS	Jun. 30, 2014
Valuation And Qualifying Accounts [Abstract]	'
VALUATION AND QUALIFYING ACCOUNTS	'
	SCHEDULE II

	CACI INTERNATIONAL INC
	VALUATION AND QUALIFYING ACCOUNTS
	FOR YEARS ENDED JUNE 30, 2014, 2013 AND 2012
	(in thousands)


		Balance at		Additions		Deductions			Other			Balance
		Beginning		at Cost					Changes			at End
		of Period										of Period
	2014
	Reserves deducted from assets to which they apply:
	Allowances for doubtful accounts	$	3,203	$	798	$	(521	)	$	254		$	3,734

	2013
	Reserves deducted from assets to which they apply:
	Allowances for doubtful accounts	$	3,590	$	2,853	$	(3,176	)	$	(64	)	$	3,203

	2012
	Reserves deducted from assets to which they apply:
	Allowances for doubtful accounts	$	3,738	$	2,583	$	(2,689	)	$	(42	)	$	3,590


	Items included as “Other Changes” primarily includes foreign currency exchange differences.

SUMMARY_OF_SIGNIFICANT_ACCOUNT1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	Jun. 30, 2014
Summary Of Significant Accounting Policies [Abstract]	'
Revenue Recognition	'

	Revenue Recognition



	Revenue is recognized when persuasive evidence of an arrangement exists, delivery has occurred or services have been rendered, the fee is fixed or determinable, and collectability is probable. The Company generates almost all of its revenue from three different types of contractual arrangements: cost-plus-fee, time and material (T&M), and fixed price contracts. Revenue on cost-plus-fee contracts is recognized to the extent of costs incurred plus an estimate of the applicable fees earned. The Company considers fixed fees under cost-plus-fee contracts to be earned in proportion to the allowable costs incurred in performance of the contract. For cost-plus-fee contracts that include performance based fee incentives, and that are subject to the provisions of Accounting Standards Codification (ASC) 605-35, Revenue Recognition – Construction-Type and Production-Type Contracts (ASC 605-35), the Company recognizes the relevant portion of the expected fee to be awarded by the customer at the time such fee can be reasonably estimated, based on factors such as the Company’s prior award experience and communications with the customer regarding performance. For such cost-plus-fee contracts subject to the provisions of ASC 605-10-S99, Revenue Recognition – SEC Materials (ASC 605-10-S99), the Company recognizes the relevant portion of the fee upon customer approval. Revenue on T&M contracts is recognized to the extent of billable rates times hours delivered for services provided, to the extent of material cost for products delivered to customers, and to the extent of expenses incurred on behalf of the customers. Shipping and handling fees charged to the customers are recognized as revenue at the time products are delivered to the customers.



	The Company has several categories of fixed price contracts: fixed unit price, fixed price-level of effort, and fixed price-completion. Revenue on fixed unit price contracts, where specified units of output under service arrangements are delivered, is recognized as units are delivered based on the specified price per unit. Revenue on fixed unit price maintenance contracts is recognized ratably over the length of the service period. Revenue for fixed price-level of effort contracts is recognized based upon the number of units of labor actually delivered multiplied by the agreed rate for each unit of labor.



	A significant portion of the Company’s fixed price-completion contracts involve the design and development of complex client systems. For these contracts that are within the scope of ASC 605-35, revenue is recognized on the percentage-of-completion method using costs incurred in relation to total estimated costs. For fixed price-completion contracts that are not within the scope of ASC 605-35, revenue is generally recognized over the period when services are provided.



	Contract accounting requires judgment relative to assessing risks, estimating contract revenue and costs, and making assumptions for schedule and technical issues. Due to the size and nature of many of the Company’s contracts, the estimation of total revenue and cost at completion is complicated and subject to many variables. Contract costs include material, labor, subcontracting costs, and other direct costs, as well as an allocation of allowable indirect costs. Assumptions have to be made regarding the length of time to complete the contract because costs also include expected increases in wages and prices for materials. For contract change orders, claims or similar items, the Company applies judgment in estimating the amounts and assessing the potential for realization. These amounts are only included in contract value when they can be reliably estimated and realization is considered probable. Incentives or penalties related to performance on contracts are considered in estimating sales and profit rates, and are recorded when there is sufficient information for the Company to assess anticipated performance. Estimates of award fees for certain contracts are also a factor in estimating revenue and profit rates based on actual and anticipated awards.



	Long-term development and production contracts make up a large portion of the Company’s business, and therefore the amounts recorded in the Company’s financial statements using contract accounting methods are material. For federal government contracts, the Company follows U.S. government procurement and accounting standards in assessing the allowability and the allocability of costs to contracts. Due to the significance of the judgments and estimation processes, it is likely that materially different amounts could be recorded if the Company used different assumptions or if the underlying circumstances were to change. The Company closely monitors compliance with, and the consistent application of, its critical accounting policies related to contract accounting. Business operations personnel conduct thorough periodic contract status and performance reviews. When adjustments in estimated contract revenue or costs are required, any changes from prior estimates are generally included in earnings in the current period. Also, regular and recurring evaluations of contract cost, scheduling and technical matters are performed by management personnel who are independent from the business operations personnel performing work under the contract. Costs incurred and allocated to contracts with the U.S. government are inspected for compliance with regulatory standards by Company personnel, and are subject to audit by the Defense Contract Audit Agency (DCAA).



	From time to time, the Company may proceed with work based on client direction prior to the completion and signing of formal contract documents. The Company has a formal review process for approving any such work. Revenue associated with such work is recognized only when it can be reliably estimated and realization is probable. The Company bases its estimates on previous experiences with the client, communications with the client regarding funding status, and its knowledge of available funding for the contract or program.



	The Company’s U.S. government contracts (94.0 and 94.4 percent of total revenue in the year ended June 30, 2014 and 2013, respectively) are subject to subsequent government audit of direct and indirect costs. Incurred cost audits have been completed through June 30, 2007. Management does not anticipate any material adjustment to the consolidated financial statements in subsequent periods for audits not yet started or completed.
Costs of Revenue	'

	Costs of Revenue



	Costs of revenue include all direct contract costs as well as indirect overhead costs and selling, general and administrative expenses that are allowable and allocable to contracts under federal procurement standards. Costs of revenue also include costs and expenses that are unallowable under applicable procurement standards, and are not allocable to contracts for billing purposes. Such costs and expenses do not directly generate revenue, but are necessary for business operations.
Cash and Cash Equivalents	'

	Cash and Cash Equivalents



	The Company considers all investments with an original maturity of three months or fewer on their trade date to be cash equivalents. The Company classifies investments with an original maturity of more than three months but fewer than twelve months on their trade date as short-term marketable securities.
Investments in Marketable Securities	'

	Investments in Marketable Securities



	From time to time, the Company invests in marketable securities that are classified as available-for-sale and are reported at fair value. Unrealized gains and losses as a result of changes in the fair value of the available-for-sale investments are recorded as a separate component within accumulated other comprehensive income in the accompanying consolidated balance sheets. For securities classified as trading securities, unrealized gains and losses are reported in the consolidated statement of operations and impact net earnings.



	The fair value of marketable securities is determined based on quoted market prices at the reporting date for those securities. The cost of securities sold is determined using the specific identification method. Premiums and discounts are amortized over the period from acquisition to maturity, and are included in investment income, along with interest and dividends.
Inventories	'

	Inventories



	Inventories are stated at the lower of cost or market using the specific identification cost method, and are recorded within prepaid expenses and other current assets on the accompanying consolidated balance sheets.
Accounting for Business Combinations and Goodwill	'

	Accounting for Business Combinations and Goodwill



	The purchase price of an acquired business is allocated to the tangible assets and separately identifiable intangible assets acquired less liabilities assumed based upon their respective fair values, with the excess recorded as goodwill.



	The Company evaluates goodwill at least annually for impairment, or whenever events or circumstances indicate that the carrying value may not be recoverable. The evaluation includes comparing the fair value of the relevant reporting unit to the carrying value, including goodwill, of such unit. The level at which the Company tests goodwill for impairment requires management to determine whether the operations below the operating segments constitute a self-sustaining business for which discrete financial information is available and segment management regularly reviews the operating results. If the fair value exceeds the carrying value, no impairment loss is recognized. However, if the carrying value of the reporting unit exceeds its fair value, the goodwill of the reporting unit may be impaired. Impairment is measured by comparing the implied fair value of the goodwill to its carrying value. Separately identifiable intangible assets with estimable useful lives are amortized over their respective estimated useful lives to their estimated residual values, and reviewed for impairment if impairment indicators are present.



	As part of the annual assessment, the Company estimates the fair value of its reporting units using both an income approach and a market approach. The valuation process considers management’s estimates of the future



	operating performance of each reporting unit. Companies in similar industries are researched and analyzed and management considers the domestic and international economic and financial market conditions, both in general and specific to the industry in which the Company operates, prevailing as of the valuation date. The income approach utilizes discounted cash flows. The Company calculates a weighted average cost of capital for each reporting unit in order to estimate the discounted cash flows.



	The Company evaluates goodwill as of the first day of the fourth quarter. In addition, the Company will perform interim impairment testing should circumstances requiring it arise. The Company completed its annual goodwill assessment as of April 1, 2014 and no impairment charge was necessary as a result of this assessment.
Long-Lived Assets (Excluding Goodwill)	'

	Long-Lived Assets (Excluding Goodwill)



	Long-lived assets such as property and equipment and intangible assets subject to amortization are reviewed for impairment whenever events or circumstances indicate that the carrying amount of an asset may not be fully recoverable. An impairment loss would be recognized if the sum of the long-term undiscounted cash flows is less than the carrying amount of the long-lived asset being evaluated. Any write-downs are treated as permanent reductions in the carrying amount of the assets. Property and equipment is recorded at cost. Depreciation of equipment and furniture has been provided over the estimated useful life of the respective assets (ranging from three to eight years) using the straight-line method. Leasehold improvements are generally amortized using the straight-line method over the remaining lease term or the useful life of the improvements, whichever is shorter. Repairs and maintenance costs are expensed as incurred. Separately identifiable intangible assets with estimable useful lives are amortized over their respective estimated useful lives to their estimated residual values.
External Software Development Costs	'

	External Software Development Costs



	Costs incurred in creating a software product to be sold or licensed for external use are charged to expense when incurred as indirect costs and selling expenses until technological feasibility has been established for the software. Technological feasibility is established upon completion of a detailed program design or, in its absence, completion of a working software version. Thereafter, all such software development costs are capitalized and subsequently reported at the lower of unamortized cost or estimated net realizable value. Capitalized costs are amortized on a straight-line basis over the remaining estimated economic life of the product.
Supplemental Retirement Savings Plan	'

	Supplemental Retirement Savings Plan



	The Company maintains the CACI International Inc Group Executive Retirement Plan (the Supplemental Savings Plan) and maintains the underlying assets in a Rabbi Trust. The Supplemental Savings Plan is a non-qualified defined contribution supplemental retirement savings plan for certain key employees whereby participants may elect to defer and contribute a portion of their compensation, as permitted by the plan. Each participant directs his or her investments in the Supplemental Savings Plan (see Note 20).



	A Rabbi Trust is a grantor trust established to fund compensation for a select group of management. The assets of this trust are available to satisfy the claims of general creditors in the event of bankruptcy of the Company. The assets held by the Rabbi Trust are invested in both corporate owned life insurance (COLI) products and in non-COLI products. The COLI products are recorded at cash surrender value in the consolidated financial statements as supplemental retirement savings plan assets and the non-COLI products are recorded at fair value in the consolidated financial statements as supplemental retirement savings plan assets. The amounts due to participants are based on contributions, participant investment elections, and other participant activity and are recorded as supplemental retirement savings plan obligations.
Income Taxes	'

	Income Taxes



	Income taxes are accounted for using the asset and liability method whereby deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the consolidated financial statement carrying amounts of assets and liabilities, and their respective tax bases, and operating loss and tax credit carry forwards. The Company accounts for tax contingencies in accordance with updates made to ASC 740-10-25, Income Taxes – Recognition. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which those temporary differences are expected to be recovered or settled. The effect on deferred tax assets and liabilities due to a change in tax rates is recognized in income in the period that includes the enactment date. Estimates of the realizability of deferred tax assets are based on the scheduled reversal of deferred tax liabilities, projected future taxable income, and tax planning strategies. Any interest or penalties incurred in connection with income taxes are recorded as part of income tax expense for financial reporting purposes.
Costs of Acquisitions	'
	Costs of Acquisitions



	Costs associated with legal, financial and other professional advisors related to acquisitions, whether successful or unsuccessful, are expensed as incurred.
Foreign Currency Translation	'

	Foreign Currency Translation



	The assets and liabilities of the Company’s foreign subsidiaries whose functional currency is other than the U.S. dollar are translated at the exchange rate in effect on the reporting date, and income and expenses are translated at the weighted-average exchange rate during the period. The Company’s primary practice is to negotiate contracts in the same currency in which the predominant expenses are incurred, thereby mitigating the exposure to foreign currency fluctuations. The net translation gains and losses are not included in determining net income, but are accumulated as a separate component of shareholders’ equity. Foreign currency transaction gains and losses are included in determining net income, but are insignificant. These costs are included as indirect costs and selling expenses in the accompanying consolidated statements of operations.
Earnings Per Share	'

	Earnings Per Share



	Basic earnings per share excludes dilution and is computed by dividing income by the weighted average number of common shares outstanding for the period. Diluted earnings per share reflects potential dilution that could occur if securities or other contracts to issue common stock were exercised or converted into common stock but not securities that are anti-dilutive, including stock options and stock settled stock appreciation rights (SSARs) with an exercise price greater than the average market price of the Company’s common stock. Using the treasury stock method, diluted earnings per share includes the incremental effect of SSARs, stock options, restricted shares, and those restricted stock unit (RSUs) that are no longer subject to a market or performance condition. For the period of the year they were outstanding, diluted earnings per share reflected the dilutive effects of shares issuable under the Company’s $300.0 million of 2.125 percent convertible senior subordinated notes that were issued on May 16, 2007 and matured on May 1, 2014 (the Notes), and warrants to issue 5.5 million shares of CACI common stock at an exercise price of $68.31 per share that were issued in May 2007. Information about the weighted-average number of basic and diluted shares is presented in Note 23.
Fair Value of Financial Instruments	'

	Fair Value of Financial Instruments



	The carrying amounts of cash and cash equivalents, accounts receivable, accounts payable and amounts included in other current assets and current liabilities that meet the definition of a financial instrument approximate fair value because of the short-term nature of these amounts.



	The fair value of the Company’s debt under its bank credit facility approximates its carrying value at June 30, 2014. The fair value of the Company’s debt under its bank credit facility was estimated using market data on companies with a corporate rating similar to CACI’s that have recently priced credit facilities. The fair value of the Notes is based on quoted market prices using Level 1 inputs (see Notes 13 and 22).
Concentrations of Credit Risk	'

	Concentrations of Credit Risk



	Financial instruments that potentially subject the Company to credit risk include accounts receivable and cash equivalents. Management believes that credit risk related to the Company’s accounts receivable is limited due to a large number of customers in differing segments and agencies of the U.S. government. Accounts receivable credit risk is also limited due to the credit worthiness of the U.S. government. Management believes the credit risk associated with the Company’s cash equivalents is limited due to the credit worthiness of the obligors of the investments underlying the cash equivalents. In addition, although the Company maintains cash balances at financial institutions that exceed federally insured limits, these balances are placed with high quality financial institutions.
Comprehensive Income	'

	Comprehensive Income



	Comprehensive income is the change in equity of a business enterprise during a period from transactions and other events and circumstances from non-owner sources. Other comprehensive income refers to revenue, expenses, and gains and losses that under U.S. GAAP are included in comprehensive income, but excluded from the determination of net income. The elements within other comprehensive income consist of foreign currency translation adjustments; the changes in the fair value of interest rate swap agreements, net of tax of $2.4 million for the year ended June 30, 2014; and differences between actual amounts and estimates based on actuarial assumptions and the effect of changes in actuarial assumptions made under the Company’s post-retirement benefit plans, net of tax (see Note 15).



	As of June 30, 2014 and 2013, accumulated other comprehensive income included a gain of $5.2 million and a loss of $8.1 million, respectively, related to foreign currency translation adjustments, a loss of $4.7 million and $1.1 million, respectively, related to the fair value of its interest rate swap agreements, and a loss of $0.9 million and $0.7 million, respectively, related to unrecognized post-retirement costs.
Use of Estimates	'

	Use of Estimates



	The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenue and expenses during the reported periods. The significant management estimates include estimated costs to complete fixed-price contracts, estimated award fees for contracts accounted for under ASC 605-35, amortization periods for long-lived intangible assets, recoverability of long-lived assets, reserves for accounts receivable, reserves for contract related matters, reserves for unrecognized tax benefits, and loss contingencies. Actual results could differ from these estimates.
Commitments and Contingencies	'

	Commitments and Contingencies



	Liabilities for loss contingencies arising from claims, assessments, litigation, fines and penalties and other sources are recorded when it is probable that a liability has been incurred and the amount of the assessment and/or remediation can be reasonably estimated.

ACQUISITIONS_Tables

ACQUISITIONS (Tables)	12 Months Ended
ACQUISITIONS (Tables)	Jun. 30, 2014
Business Combinations [Abstract]	'
Schedule of assets acquired and liabilities assumed	'



	Cash	$	10,166
	Accounts receivable		80,615
	Prepaid expenses and other current assets		17,551
	Property and equipment		8,051
	Customer contracts and customer relationships		164,300
	Goodwill		702,747
	Other assets		598
	Accounts payable		(9,047	)
	Accrued expenses and other current liabilities		(63,417	)
	Long-term deferred tax liability		(64,275	)

	Total consideration	$	847,289


Schedule of unaudited pro forma results of operations	'
		(Unaudited)
		Year ended June 30,
		2014			2013
	Revenue	$	3,742,394		$	4,121,447
	Net income		150,881			152,406
	Basic earnings per share		6.44			6.62
	Diluted earnings per share		6			6.38

CASH_AND_CASH_EQUIVALENTS_Tabl

CASH AND CASH EQUIVALENTS (Tables)	12 Months Ended
CASH AND CASH EQUIVALENTS (Tables)	Jun. 30, 2014
Cash And Cash Equivalents [Abstract]	'
Schedule of cash and cash equivalents	'
		June 30,
		2014		2013
	Cash	$	62,560	$	61,722
	Money market funds	$	1,901		2,615

	Total cash and cash equivalents	$	64,461	$	64,337

ACCOUNTS_RECEIVABLE_Tables

ACCOUNTS RECEIVABLE (Tables)	12 Months Ended
ACCOUNTS RECEIVABLE (Tables)	Jun. 30, 2014
Accounts Receivable [Abstract]	'
Schedule of total accounts receivable	'
		June 30,
		2014		2013
	Billed receivables	$	473,527	$	468,254
	Billable receivables at end of period		84,784		102,963
	Unbilled receivables pending receipt of contractual documents authorizing billing		57,269		43,399

	Total accounts receivable, current		615,580		614,616
	Unbilled receivables, retainages and fee withholdings expected to be billed beyond the next 12 months		8,714		11,330

	Total accounts receivable	$	624,294	$	625,946

GOODWILL_Tables

GOODWILL (Tables)	12 Months Ended
GOODWILL (Tables)	Jun. 30, 2014
Goodwill [Abstract]	'
Schedule of changes in the carrying amount of goodwill	'

	Balance at June 30, 2012	$	1,406,953
	Goodwill acquired		71,458
	Foreign currency translation		(1,446	)

	Balance at June 30, 2013	$	1,476,965

	Goodwill acquired		702,447
	Foreign currency translation		8,857

	Balance at June 30, 2014	$	2,188,569

INTANGIBLE_ASSETS_Tables

INTANGIBLE ASSETS (Tables)	12 Months Ended
INTANGIBLE ASSETS (Tables)	Jun. 30, 2014
Intangible Assets [Abstract]	'
Schedule of intangible assets	'
		June 30,
		2014			2013
	Intangible assets
	Customer contracts and related customer relationships	$	516,973		$	351,349
	Acquired technologies		27,177			27,177
	Covenants not to compete		3,472			3,401
	Other		1,601			1,639

	Intangible assets		549,223			383,566

	Less accumulated amortization
	Customer contracts and related customer relationships		(291,583	)		(254,840	)
	Acquired technologies		(23,119	)		(20,686	)
	Covenants not to compete		(3,131	)		(2,896	)
	Other		(980	)		(956	)

	Accumulated amortization		(318,813	)		(279,378	)

	Total intangible assets, net	$	230,410		$	104,188



Schedule of expected amortization expense	'
		Amount
	Year ending June 30, 2015	$	39,446
	Year ending June 30, 2016		32,754
	Year ending June 30, 2017		29,429
	Year ending June 30, 2018		25,368
	Year ending June 30, 2019		20,903
	Thereafter		82,510

	Total intangible assets, net	$	230,410

PROPERTY_AND_EQUIPMENT_Tables

PROPERTY AND EQUIPMENT (Tables)	12 Months Ended
PROPERTY AND EQUIPMENT (Tables)	Jun. 30, 2014
Property And Equipment [Abstract]	'
Schedule of property and equipment	'

		June 30,
		2014			2013
	Equipment and furniture	$	99,144		$	88,279
	Leasehold improvements		80,412			73,569

	Property and equipment, at cost		179,556			161,848
	Less accumulated depreciation and amortization		(111,071	)		(96,338	)

	Total property and equipment, net	$	68,485		$	65,510

CAPITALIZED_EXTERNAL_SOFTWARE_1

CAPITALIZED EXTERNAL SOFTWARE DEVELOPMENT COSTS (Tables)	12 Months Ended
CAPITALIZED EXTERNAL SOFTWARE DEVELOPMENT COSTS (Tables)	Jun. 30, 2014
Capitalized External Software Development Costs [Abstract]	'
Schedule of capitalized external software development costs	'
		Year ended June 30,
		2014			2013			2012
	Capitalized software development costs, beginning of year	$	12,742		$	6,448		$	4,049
	Costs capitalized		7,742			8,842			4,216
	Amortization		(3,890	)		(2,548	)		(1,817	)

	Capitalized software development costs, end of year	$	16,594		$	12,742		$	6,448

ACCRUED_COMPENSATION_AND_BENEF1

ACCRUED COMPENSATION AND BENEFITS (Tables)	12 Months Ended
ACCRUED COMPENSATION AND BENEFITS (Tables)	Jun. 30, 2014
Accrued Compensation And Benefits [Abstract]	'
Schedule of accrued compensation and benefits	'
		June 30,
		2014		2013
	Accrued salaries and withholdings	$	100,503	$	84,168
	Accrued leave		63,392		65,501
	Accrued fringe benefits		19,466		16,869

	Total accrued compensation and benefits	$	183,361	$	166,538

OTHER_ACCRUED_EXPENSES_AND_CUR1

OTHER ACCRUED EXPENSES AND CURRENT LIABILITIES (Tables)	12 Months Ended
OTHER ACCRUED EXPENSES AND CURRENT LIABILITIES (Tables)	Jun. 30, 2014
Other Accrued Expenses And Current Liabilities [Abstract]	'
Schedule of other accrued expenses and current liabilities	'
		June 30,
		2014		2013
	Vendor obligations	$	88,617	$	97,281
	Deferred revenue		33,584		28,741
	Deferred acquisition consideration		—		4,791
	Other		19,651		16,553

	Total other accrued expenses and current liabilities	$	141,852	$	147,366

LONG_TERM_DEBT_Tables

LONG TERM DEBT (Tables)	12 Months Ended
LONG TERM DEBT (Tables)	Jun. 30, 2014
Long-Term Debt [Abstract]	'
Schedule of long-term debt	'
		June 30,
		2014			2013
	Convertible notes payable	$	—		$	300,000
	Bank credit facility – term loans		810,469			131,250
	Bank credit facility – revolver loans		475,000			180,000

	Principal amount of long-term debt		1,285,469			611,250
	Less unamortized discount		—			(11,421	)
	Less unamortized debt issuance costs		(5,178	)		(3,522	)

	Total long-term debt		1,280,291			596,307
	Less current portion		(41,563	)		(295,517	)

	Long-term debt, net of current portion	$	1,238,728		$	300,790


Schedule of components of interest expense	'
		Year ended June 30,
		2014			2013			2012
	Coupon interest	$	5,313		$	6,375		$	6,375
	Non-cash amortization of discount		11,421			12,868			12,024
	Amortization of issuance costs		683			820			820

	Total	$	17,417		$	20,063		$	19,219


Schedule of effect of derivative instruments in the condensed consolidated statements of operations and accumulated other comprehensive loss	'
		Interest Rate Swaps
		2014			2013			2012
	(Loss) gain recognized in other comprehensive income	$	(3,643	)	$	262		$	(1,332	)

	Loss reclassified to earnings from accumulated other comprehensive loss	$	1,356		$	—		$	—


Schedule of aggregate maturities of long-term debt	'

	Year ending June 30,
	2015	$	41,563
	2016		41,563
	2017		62,343
	2018		83,125
	2019		1,056,875

	Principal amount of long-term debt		1,285,469
	Less unamortized debt issuance costs		(5,178	)

	Total long-term debt	$	1,280,291

LEASES_Tables

LEASES (Tables)	12 Months Ended
LEASES (Tables)	Jun. 30, 2014
Leases [Abstract]	'
Schedule of future minimum lease payments due under non-cancelable leases	'

	Year ending June 30:
	2015	$	49,065
	2016		45,583
	2017		39,609
	2018		29,916
	2019		25,086
	Thereafter		52,114

	Total minimum lease payments	$	241,373

OTHER_LONGTERM_LIABILITIES_Tab

OTHER LONG-TERM LIABILITIES (Tables)	12 Months Ended
OTHER LONG-TERM LIABILITIES (Tables)	Jun. 30, 2014
Other Long-Term Liabilities [Abstract]	'
Schedule of components of other long-term liabilities	'
		June 30,
		2014		2013
	Deferred rent, net of current portion	$	31,662	$	28,777
	Reserve for unrecognized tax benefits		9,138		6,384
	Deferred revenue		8,397		8,356
	Accrued post-retirement obligations		5,557		5,180
	Interest rate swap agreements		7,774		1,765
	Other		825		1,111

	Total other long-term liabilities	$	63,353	$	51,573

BUSINESS_SEGMENT_CUSTOMER_AND_1

BUSINESS SEGMENT, CUSTOMER AND GEOGRAPHIC INFORMATION (Tables)	12 Months Ended
	Jun. 30, 2014
Business Segment Information [Abstract]	'
Summarized financial information of reportable segments	'
									Total
		Domestic			International
		Operations			Operations
			(in thousands)
	Year Ended June 30, 2014
	Revenue from external customers		$	3,421,544		$	143,018			$	3,564,562
	Net income attributable to CACI			124,599			10,717				135,316
	Net assets			1,221,641			137,525				1,359,166
	Goodwill			2,099,821			88,748				2,188,569
	Total long-term assets			2,509,992			113,297				2,623,289
	Total assets			3,170,121			189,017				3,359,138
	Capital expenditures			13,737			1,542				15,279
	Depreciation and amortization			61,207			3,974				65,181

	Year Ended June 30, 2013
	Revenue from external customers		$	3,547,459		$	134,531			$	3,681,990
	Net income attributable to CACI			141,741			9,948				151,689
	Net assets			1,094,098			113,474				1,207,572
	Goodwill			1,397,272			79,693				1,476,965
	Total long-term assets			1,669,585			103,705				1,773,290
	Total assets			2,333,452			163,619				2,497,071
	Capital expenditures			13,667			1,772				15,439
	Depreciation and amortization			50,568			3,510				54,078

	Year Ended June 30, 2012
	Revenue from external customers		$	3,659,367		$	115,106			$	3,774,473
	Net income attributable to CACI			159,421			8,033				167,454
	Net assets			1,061,360			103,085				1,164,445
	Goodwill			1,325,814			81,139				1,406,953
	Total long-term assets			1,600,726			101,704				1,702,430
	Total assets			2,233,480			154,742				2,388,222
	Capital expenditures			16,613			1,671				18,284
	Depreciation and amortization			52,865			3,097				55,962


Schedule of revenue by customer sector	'
			Year ended June 30,
			2014			%				2013		%			2012		%
	Department of Defense		$	2,578,024			72.3	%		$	2,735,102		74.3	%	$	2,944,924		78	%
	Federal civilian agencies			771,662			21.7				741,053		20.1			620,870		16.5
	Commercial and other			199,521			5.6				190,142		5.2			193,840		5.1
	State and local governments			15,355			0.4				15,693		0.4			14,839		0.4

	Total revenue		$	3,564,562			100	%		$	3,681,990		100	%	$	3,774,473		100	%

INCOME_TAXES_Tables

INCOME TAXES (Tables)	12 Months Ended
INCOME TAXES (Tables)	Jun. 30, 2014
Income Tax Disclosure [Abstract]	'
Schedule of income loss before income tax expense	'
		Year ended June 30,
		2014			2013			2012
	Domestic	$	204,879		$	231,342		$	263,790
	Foreign		13,763			12,694			11,201

	Income before income taxes	$	218,642		$	244,036		$	274,991


Schedule of components of income tax expense	'
		Year ended June 30,
		2014			2013			2012
	Current:
	Federal	$	53,055		$	47,038		$	76,874
	State and local		11,456			10,767			16,678
	Foreign		3,256			3,440			3,332

	Total current		67,767			61,245			96,884


	Deferred:
	Federal		12,580			26,218			9,000
	State and local		2,680			5,313			1,458
	Foreign		299			(429	)		195

	Total deferred		15,559			31,102			10,653

	Total income tax expense	$	83,326		$	92,347		$	107,537

Schedule of effective income tax rate reconciliation	'
		Year ended June 30,
		2014			2013			2012
	Expected tax expense computed at federal rate	$	76,525		$	85,413		$	96,247
	State and local taxes, net of federal benefit		9,188			10,452			11,788
	(Nonincludible) nondeductible items		1,150			(929	)		2,424
	Incremental effect of foreign tax rates		(1,885	)		(1,376	)		(1,026	)
	Other		(1,652	)		(1,213	)		(1,896	)

	Total income tax expense	$	83,326		$	92,347		$	107,537


Schedule of deferred tax assets and liabilities	'
		June 30,
		2014			2013
	Deferred tax assets:
	Deferred compensation and post-retirement obligations	$	35,360		$	34,597
	Reserves and accruals		28,176			27,640
	Stock-based compensation		8,301			13,409
	Deferred rent		4,632			3,522
	Other		13,127			7,900

	Total deferred tax assets		89,596			87,068

	Deferred tax liabilities:
	Goodwill and other intangible assets		(243,035	)		(162,739	)
	Unbilled revenue		(6,948	)		(11,583	)
	Prepaid expenses		(4,986	)		(4,638	)
	Other		(9,780	)		(9,040	)

	Total deferred tax liabilities		(264,749	)		(188,000	)

	Net deferred tax liability	$	(175,153	)	$	(100,932	)
Schedule of unrecognized tax benefits	'
		Year ended June 30,
		2014			2013			2012
	Beginning of year	$	8,184		$	7,013		$	5,897
	Additions based on current year tax positions		2,023			1,261			1,181
	Lapse of statute of limitations		(426	)		(90	)		(65	)
	Settlement with taxing authorities		(145	)		—			—

	End of year	$	9,636		$	8,184		$	7,013

STOCK_PLANS_AND_STOCKBASED_COM1

STOCK PLANS AND STOCK-BASED COMPENSATION (Tables)	12 Months Ended
STOCK PLANS AND STOCK-BASED COMPENSATION (Tables)	Jun. 30, 2014
Stock Plans And Stock-Based Compensation [Abstract]	'
Summary of stock-based compensation expense recognized	'
		Year ended June 30,
		2014			2013			2012
	Stock-based compensation included in indirect costs and selling expense:
	Restricted stock and RSU expense	$	11,516		$	8,150		$	13,526
	SSARs and non-qualified stock option expense		41			682			1,973

	Total stock-based compensation expense	$	11,557		$	8,832		$	15,499

	Income tax benefit recognized for stock-based compensation expense	$	4,392		$	3,342		$	6,062


Summary of activity for outstanding SSARs and stock options	'
		Number			Exercise Price			Weighted			Weighted
		of Shares						Average			Average
								Exercise			Grant Date
								Price			Fair Value
	Outstanding, June 30, 2011		2,110,304			$34.10 – $65.04		$	52.78		$	20.77

	Exercisable, June 30, 2011		1,177,209			34.10 – 65.04			55.19			22.17

	Exercised		(365,306	)		34.10 – 62.48			48.72			19.1
	Forfeited		(32,630	)		45.77 – 54.39			48.64			17.95
	Expired		(28,670	)		48.83 – 62.48			60.2			19.19

	Outstanding, June 30, 2012		1,683,698			34.10 – 65.04			53.62			21.21

	Exercisable, June 30, 2012		1,362,451			34.10 – 65.04			54.79			22.01

	Exercised		(838,618	)		34.10 – 58.40			48.76			18.93
	Forfeited		(10,350	)		42.95 – 49.36			48.37			17.03
	Expired		(559,180	)		36.13 – 65.04			63.46			26.51

	Outstanding, June 30, 2013		275,550			37.67 – 59.30			48.62			17.54

	Exercisable, June 30, 2013		243,170			37.67 – 59.30			48.58			17.6

	Exercised		(180,370	)		45.77 – 49.36			48.53			17.81
	Forfeited		(1,150	)		49.36			49.36			17.12
	Expired		(2,080	)		49.36			49.36			17.12

	Outstanding, June 30, 2014		91,950			37.67 – 59.30			48.77			17.02

	Exercisable, June 30, 2014		91,950			$37.67 – $59.30		$	48.77		$	17.02


Summary of activity related to SSARs/Non-qualified stock options and RSUs/Restricted shares issued	'
		SSARs and						Restricted Stock and
		Stock Options						Restricted Stock Units
		Number			Weighted			Number			Weighted
		of Shares			Average			of Shares			Average
					Grant Date						Grant Date
					Fair Value						Fair Value
	Unvested at June 30, 2011		933,095		$	18.99			1,322,101		$	45.23

	Granted		—			—			817,918			47.34
	Vested		(579,218	)		19.72			(266,658	)		48.09
	Forfeited		(32,630	)		17.95			(222,040	)		46.59

	Unvested at June 30, 2012		321,247			17.8			1,651,321			45.97

	Granted		—			—			605,277			59.07
	Vested		(278,517	)		17.92			(347,497	)		47.27
	Forfeited		(10,350	)		17.03			(866,355	)		53.04

	Unvested at June 30, 2013		32,380			17.02			1,042,746			47.74

	Granted		—			—			254,356			72.17
	Vested		(31,230	)		17.02			(360,857	)		45.07
	Forfeited		(1,150	)		17.12			(98,003	)		54.94

	Unvested at June 30, 2014		—		$	—			838,242		$	55.39


Summary of information regarding cash proceeds received, intrinsic value and total tax benefits realized resulting from stock options exercises	'
		Year ended June 30,
		2014			2013			2012
	Cash proceeds received	$	—		$	13,050		$	7,466
	Intrinsic value realized	$	3,868		$	6,594		$	3,865
	Income tax benefit realized	$	1,470		$	2,595		$	1,521

Summary of information regarding SSARs and stock options outstanding and exercisable	'
		SSARs and Options Outstanding and Exercisable
	Range of exercise Price	Number of			Weighted			Weighted			Intrinsic		Number of
		Instruments			Average			Average			Value		Instruments
					Exercise			Remaining
					Price			Contractual
								Life
	$30.00-$39.99		6,400		$	37.67			1.14		$	208		6,400
	$40.00-$49.99		75,550			48.31			0.98			1,655		75,550
	$50.00-$59.99		10,000			59.3			0.56			109		10,000

			91,950								$	1,972		91,950


Summary of activity related to MSPP And DSPP	'
		MSPP			DSPP
	RSUs outstanding, June 30, 2013		29,291			137
	Granted		542			—
	Issued		(13,832	)		(137	)
	Forfeited		(2,201	)		—

	RSUs outstanding, June 30, 2014		13,800			—

	Weighted average grant date fair value as adjusted for the applicable discount	$	43.99

	Weighted average grant date fair value				$	—

FAIR_VALUE_OF_FINANCIAL_INSTRU1

FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)

12 Months Ended

Jun. 30, 2014

Fair Value Disclosures [Abstract]

Schedule of financial assets and liabilities measured at fair value on a recurring basis

Financial Statement

Fair

As of June 30,

Description of Financial Instrument

Classification

Value

2014

2013

Hierarchy

Fair Value

Non-COLI assets held in connection with the Supplemental Savings Plan

Long-term asset

Level 1

—

830

Contingent Consideration

Current liability

Level 3

—

2,977

Interest rate swap agreements

Other long-term liabilities

Level 2

7,774

1,765

EARNINGS_PER_SHARE_Tables

EARNINGS PER SHARE (Tables)	12 Months Ended
EARNINGS PER SHARE (Tables)	Jun. 30, 2014
Earnings Per Share [Abstract]	'
Schedule of calculation of basic and diluted earnings per share	'
		Year ended June 30,
		2014		2013		2012
	Net income attributable to CACI	$	135,316	$	151,689	$	167,454

	Weighted-average number of basic shares outstanding during the period		23,429		23,010		27,077
	Dilutive effect of SSARs/stock options and RSUs/restricted shares after application of treasury stock method		441		743		879
	Dilutive effect of the Notes		1,285		132		111
	Dilutive effect of accelerated share repurchase agreement		—		—		44

	Weighted-average number of diluted shares outstanding during the period		25,155		23,885		28,111

	Basic earnings per share	$	5.78	$	6.59	$	6.18

	Diluted earnings per share	$	5.38	$	6.35	$	5.96

QUARTERLY_FINANCIAL_DATA_UNAUD1

QUARTERLY FINANCIAL DATA (UNAUDITED) (Tables)	12 Months Ended
QUARTERLY FINANCIAL DATA (UNAUDITED) (Tables)	Jun. 30, 2014
Quarterly Financial Data [Abstract]	'
Schedule of quarterly condensed financial operating results	'
		Year ended June 30, 2014
		First		Second		Third		Fourth
	Revenue	$	864,265	$	894,186	$	900,393	$	905,718
	Income from operations	$	61,182	$	66,454	$	60,532	$	69,235
	Net income attributable to CACI	$	32,992	$	34,962	$	30,828	$	36,534
	Basic earnings per share	$	1.42	$	1.49	$	1.31	$	1.55
	Diluted earnings per share	$	1.33	$	1.38	$	1.19	$	1.49
	Weighted-average shares outstanding:
	Basic		23,314		23,433		23,473		23,498
	Diluted		24,835		25,297		25,973		24,517


		Year ended June 30, 2013
		First		Second		Third		Fourth
	Revenue	$	931,236	$	931,627	$	906,196	$	912,931
	Income from operations	$	64,737	$	69,582	$	68,620	$	67,902
	Net income attributable to CACI	$	35,708	$	39,676	$	38,367	$	37,938
	Basic earnings per share	$	1.55	$	1.74	$	1.67	$	1.64
	Diluted earnings per share	$	1.49	$	1.69	$	1.62	$	1.56
	Weighted-average shares outstanding:
	Basic		23,032		22,852		23,021		23,136
	Diluted		23,980		23,537		23,706		24,318

ORGANIZATION_AND_BASIS_OF_PRES1

ORGANIZATION AND BASIS OF PRESENTATION (Detail Textuals)	12 Months Ended
ORGANIZATION AND BASIS OF PRESENTATION (Detail Textuals)	Jun. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Variable interest entity, ownership percentage	50.00%

SUMMARY_OF_SIGNIFICANT_ACCOUNT2

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Detail Textuals) (USD $)	12 Months Ended
In Millions, except Per Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Percent of total revenue subject to subsequent government audit of direct and indirect costs	94.00%	94.40%
Material adjustment for audits not completed on revenue recognition	'Management does not anticipate any material adjustment to the consolidated financial statements in subsequent periods for audits not yet started or completed.	'
Convertible senior subordinated notes outstanding	$300	'
Convertible senior subordinated notes, stated interest rate	2.13%	'
Amount of tax expense for changes in the fair value of interest rate swap agreements	2.4	'
Accumulated other comprehensive loss related to foreign currency translation adjustments	5.2	-8.1
Accumulated other comprehensive loss related to fair value of interest rate swaps	-4.7	-1.1
Accumulated other comprehensive loss related to unrecognized post-retirement medical plan costs	($0.90)	($0.70)
Warrants	'	'
Exercise price of shares issued under warrants	$68.31	'
Number of shares called by warrants	5.5	'
Minimum	'	'
Estimated useful life	'3 years	'
Maximum	'	'
Estimated useful life	'8 years	'

ACQUISITIONS_Asset_aquired_and

ACQUISITIONS - Asset aquired and liability assumed (Details) (USD $)	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012	Nov. 15, 2013
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012	Six3 Systems Holdings II Inc
Business Acquisition [Line Items]	'	'	'	'
Cash	'	'	'	$10,166
Accounts receivable	'	'	'	80,615
Prepaid expenses and other current assets	'	'	'	17,551
Property and equipment	'	'	'	8,051
Customer contracts and customer relationships	'	'	'	164,300
Goodwill	2,188,569	1,476,965	1,406,953	702,747
Other assets	'	'	'	598
Accounts payable	'	'	'	-9,047
Accrued expenses and other current liabilities	'	'	'	-63,417
Long-term deferred tax liability	'	'	'	-64,275
Total consideration	'	'	'	$847,289

ACQUISITIONS_Unaudited_Pro_For

ACQUISITIONS - Unaudited Pro Forma Financial Information (Details 1) (Six3 Systems Holdings II Inc, USD $)	12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Six3 Systems Holdings II Inc	'	'
Business Acquisition [Line Items]	'	'
Revenue	$3,742,394	$4,121,447
Net income	$150,881	$152,406
Basic earnings per share (in dollars per share)	$6.44	$6.62
Diluted earnings per share (in dollars per share)	$6	$6.38

ACQUISITIONS_Detail_Textuals

ACQUISITIONS (Detail Textuals) (Six3 Systems Holdings II Inc, USD $)	0 Months Ended
In Millions, unless otherwise specified	Nov. 15, 2013
Term Loan	'
Business Acquisition [Line Items]	'
Increase in credit facility	$700
Revolving Credit Facility	'
Business Acquisition [Line Items]	'
Increase in credit facility	$100

ACQUISITIONS_Detail_Textuals_1

ACQUISITIONS (Detail Textuals 1) (USD $)

3 Months Ended

12 Months Ended

0 Months Ended

3 Months Ended

7 Months Ended

12 Months Ended

7 Months Ended

0 Months Ended

7 Months Ended

Jun. 30, 2014

Mar. 31, 2014

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2012

Nov. 15, 2013

Mar. 31, 2014

Jun. 30, 2014

Nov. 15, 2013

Jun. 30, 2014

Six3 Systems Holdings II Inc

Retention Agreements With Acquired Entity Executive

Customer Contracts And Customer Relationships

Business Acquisition [Line Items]

Percentage of outstanding shares acquired

100.00%

Net income

$36,534,000

$30,828,000

$34,962,000

$32,992,000

$37,938,000

$38,367,000

$39,676,000

$35,708,000

$135,316,000

$151,689,000

$167,454,000

$8,900,000

Initial purchase consideration

820,000,000

Estimated cash and net working capital adjustment

25,800,000

Escrow deposit related to net cash and working capital adjustments

5,000,000

Escrow deposit related to indemnified obligations

35,000,000

Escrow deposit distributed to seller

5,000,000

Estimated consideration allocated to assets acquired and liabilities assumed

847,289,000

Net working capital adjustment

1,400,000

Goodwill

2,188,569,000

1,476,965,000

2,188,569,000

1,476,965,000

1,406,953,000

702,747,000

Value attributed to goodwill, customer contracts and customer relationships deductible for income tax purposes

55,100,000

Amortization period

'14 years

Revenue from external customers

905,718,000

900,393,000

894,186,000

864,265,000

912,931,000

906,196,000

931,627,000

931,236,000

3,564,562,000

3,681,990,000

3,774,473,000

268,400,000

Amortization of customer contracts and customer relationships

38,600,000

30,500,000

35,100,000

12,900,000

Retention bonuses

4,200,000

Acquisition-related expenses

11,700,000

Loss on extinguishment on debt

($4,116,000)

($4,100,000)

ACQUISITIONS_Detail_Textuals_2

ACQUISITIONS (Detail Textuals 2) (USD $)	12 Months Ended				12 Months Ended
	Jun. 30, 2012	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2012	Jun. 30, 2014	Jun. 30, 2013
				TCL	UNITED STATES	UNITED STATES	International operations	International operations	International operations
					Business	Business	Business
Business Acquisition [Line Items]	'	'	'	'	'	'	'	'	'
Number of businesses acquired	'	'	'	'	3	3	2	'	'
Total consideration to acquire businesses	$199,100,000	'	'	'	$106,400,000	'	'	'	'
Goodwill	1,406,953,000	2,188,569,000	1,476,965,000	'	'	'	81,139,000	88,748,000	79,693,000
Business acquisition, intangible assets	43,200,000	'	19,900,000	'	'	'	'	'	'
Maximum contingent consideration	'	'	'	$6,000,000	'	'	'	'	'

CASH_AND_CASH_EQUIVALENTS_Deta

CASH AND CASH EQUIVALENTS (Details) (USD $)	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Cash And Cash Equivalents [Abstract]	'	'	'	'
Cash	$62,560	$61,722	'	'
Money market funds	1,901	2,615	'	'
Total cash and cash equivalents	$64,461	$64,337	$15,740	$164,817

ACCOUNTS_RECEIVABLE_Details

ACCOUNTS RECEIVABLE (Details) (USD $)	Jun. 30, 2014	Jun. 30, 2013
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Accounts Receivable [Abstract]	'	'
Billed receivables	$473,527	$468,254
Billable receivables at end of period	84,784	102,963
Unbilled receivables pending receipt of contractual documents authorizing billing	57,269	43,399
Total accounts receivable, current	615,580	614,616
Unbilled receivables, retainages and fee withholdings expected to be billed beyond the next 12 months	8,714	11,330
Total accounts receivable	$624,294	$625,946

GOODWILL_Details

GOODWILL (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Goodwill [Roll Forward]	'	'
Balance	$1,476,965	$1,406,953
Goodwill acquired	702,447	71,458
Foreign currency translation	8,857	-1,446
Balance	$2,188,569	$1,476,965

INTANGIBLE_ASSETS_Summary_of_i

INTANGIBLE ASSETS - Summary of intangible Assets (Details) (USD $)	Jun. 30, 2014	Jun. 30, 2013
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Intangible assets	'	'
Intangible assets	$549,223	$383,566
Less accumulated amortization	'	'
Accumulated amortization	-318,813	-279,378
Total intangible assets, net	230,410	104,188
Customer contracts and related customer relationships	'	'
Intangible assets	'	'
Intangible assets	516,973	351,349
Less accumulated amortization	'	'
Accumulated amortization	-291,583	-254,840
Acquired technologies	'	'
Intangible assets	'	'
Intangible assets	27,177	27,177
Less accumulated amortization	'	'
Accumulated amortization	-23,119	-20,686
Covenants not to compete	'	'
Intangible assets	'	'
Intangible assets	3,472	3,401
Less accumulated amortization	'	'
Accumulated amortization	-3,131	-2,896
Other	'	'
Intangible assets	'	'
Intangible assets	1,601	1,639
Less accumulated amortization	'	'
Accumulated amortization	($980)	($956)

INTANGIBLE_ASSETS_Summary_of_e

INTANGIBLE ASSETS - Summary of expected amortization expense (Details 1) (USD $)	Jun. 30, 2014	Jun. 30, 2013
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Intangible Assets [Abstract]	'	'
Year ending June 30, 2015	$39,446	'
Year ending June 30, 2016	32,754	'
Year ending June 30, 2017	29,429	'
Year ending June 30, 2018	25,368	'
Year ending June 30, 2019	20,903	'
Thereafter	82,510	'
Total intangible assets, net	$230,410	$104,188

INTANGIBLE_ASSETS_Detail_Textu

INTANGIBLE ASSETS (Detail Textuals) (USD $)	12 Months Ended
INTANGIBLE ASSETS (Detail Textuals) (USD $)	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Finite-Lived Intangible Assets [Line Items]	'	'	'
Amortization expense	$38,600,000	$30,500,000	$35,100,000
Accumulated amortization	318,813,000	279,378,000	'
Minimum	'	'	'
Finite-Lived Intangible Assets [Line Items]	'	'	'
Intangible asset amortization period	'1 year	'	'
Maximum	'	'	'
Finite-Lived Intangible Assets [Line Items]	'	'	'
Intangible asset amortization period	'15 years	'	'
Customer contracts and related customer relationships	'	'	'
Finite-Lived Intangible Assets [Line Items]	'	'	'
Weighted-average amortization period	'13 years 1 month 6 days	'	'
Weighted-average remaining amortization period	'11 years 6 months	'	'
Accumulated amortization	291,583,000	254,840,000	'
Acquired technologies	'	'	'
Finite-Lived Intangible Assets [Line Items]	'	'	'
Weighted-average amortization period	'9 years 4 months 24 days	'	'
Weighted-average remaining amortization period	'4 years 10 months 24 days	'	'
Accumulated amortization	$23,119,000	$20,686,000	'

PROPERTY_AND_EQUIPMENT_Details

PROPERTY AND EQUIPMENT (Details) (USD $)	Jun. 30, 2014	Jun. 30, 2013
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Property And Equipment [Abstract]	'	'
Equipment and furniture	$99,144	$88,279
Leasehold improvements	80,412	73,569
Property and equipment, at cost	179,556	161,848
Less accumulated depreciation and amortization	-111,071	-96,338
Total property and equipment, net	$68,485	$65,510

PROPERTY_AND_EQUIPMENT_Detail_

PROPERTY AND EQUIPMENT (Detail Textuals) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Property And Equipment [Abstract]	'	'	'
Depreciation expense	$22.70	$21.10	$19.10

CAPITALIZED_EXTERNAL_SOFTWARE_2

CAPITALIZED EXTERNAL SOFTWARE DEVELOPMENT COSTS (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Capitalized External Software Development Costs [Abstract]	'	'	'
Capitalized software development costs, beginning of year	$12,742	$6,448	$4,049
Costs capitalized	7,742	8,842	4,216
Amortization	-3,890	-2,548	-1,817
Capitalized software development costs, end of year	$16,594	$12,742	$6,448

ACCRUED_COMPENSATION_AND_BENEF2

ACCRUED COMPENSATION AND BENEFITS (Details) (USD $)	Jun. 30, 2014	Jun. 30, 2013
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Accrued Compensation And Benefits [Abstract]	'	'
Accrued salaries and withholdings	$100,503	$84,168
Accrued leave	63,392	65,501
Accrued fringe benefits	19,466	16,869
Total accrued compensation and benefits	$183,361	$166,538

OTHER_ACCRUED_EXPENSES_AND_CUR2

OTHER ACCRUED EXPENSES AND CURRENT LIABILITIES (Schedule Of Other Accrued Expenses And Current Liabilities) (Details) (USD $)	Jun. 30, 2014	Jun. 30, 2013
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Other Accrued Expenses And Current Liabilities [Abstract]	'	'
Vendor obligations	$88,617	$97,281
Deferred revenue	33,584	28,741
Deferred acquisition consideration	'	4,791
Other	19,651	16,553
Total other accrued expenses and current liabilities	$141,852	$147,366

OTHER_ACCRUED_EXPENSES_AND_CUR3

OTHER ACCRUED EXPENSES AND CURRENT LIABILITIES (Detail Textuals) (USD $)	Jun. 30, 2013
In Thousands, unless otherwise specified	Jun. 30, 2013
Other Accrued Expenses And Current Liabilities [Abstract]	'
Deferred acquisition consideration	$4,791

LONG_TERM_DEBT_Summary_of_long

LONG TERM DEBT - Summary of long-term debt (Details) (USD $)	Jun. 30, 2014	Jun. 30, 2013
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Debt Instrument [Line Items]	'	'
Principal amount of long-term debt	$1,285,469	$611,250
Less unamortized discount	'	-11,421
Less unamortized debt issuance costs	-5,178	-3,522
Total long-term debt	1,280,291	596,307
Less current portion	-41,563	-295,517
Long-term debt, net of current portion	1,238,728	300,790
Convertible notes payable	'	'
Debt Instrument [Line Items]	'	'
Principal amount of long-term debt	'	300,000
Bank credit facility - term loans	'	'
Debt Instrument [Line Items]	'	'
Principal amount of long-term debt	810,469	131,250
Bank credit facility - revolver loans	'	'
Debt Instrument [Line Items]	'	'
Principal amount of long-term debt	$475,000	$180,000

LONG_TERM_DEBT_Components_of_i

LONG TERM DEBT - Components of interest expense (Details 1) (Convertible Notes Payable, USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Convertible Notes Payable	'	'	'
Debt Instrument [Line Items]	'	'	'
Coupon interest	$5,313	$6,375	$6,375
Non-cash amortization of discount	11,421	12,868	12,024
Amortization of issuance costs	683	820	820
Total	$17,417	$20,063	$19,219

LONG_TERM_DEBT_Effect_of_deriv

LONG TERM DEBT - Effect of derivative instruments (Details 2) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Long-Term Debt [Abstract]	'	'	'
Loss recognized in other comprehensive income	($3,643)	$262	($1,332)
Loss reclassified to earnings from accumulated other comprehensive loss	$1,356	'	'

LONG_TERM_DEBT_Aggregate_matur

LONG TERM DEBT - Aggregate maturities of long-term debt (Details 3) (USD $)	Jun. 30, 2014	Jun. 30, 2013
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Long-Term Debt [Abstract]	'	'
2015	$41,563	'
2016	41,563	'
2017	62,343	'
2018	83,125	'
2019	1,056,875	'
Principal amount of long-term debt	1,285,469	611,250
Less unamortized debt issuance costs	-5,178	-3,522
Total long-term debt	$1,280,291	$596,307

LONG_TERM_DEBT_Detail_Textuals

LONG TERM DEBT (Detail Textuals) (USD $)

12 Months Ended

3 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Nov. 15, 2013

Jun. 30, 2013

Nov. 15, 2013

Jun. 30, 2014

Nov. 15, 2013

Jun. 30, 2013

Nov. 15, 2013

Jun. 30, 2014

Six3 Systems Holdings II Inc

Indirect costs and selling expenses

Bank Credit Facility

Revolving Credit Facility

Same-Day Swing Line Loan Revolving Credit Sub Facility

Stand-By Letters Of Credit Revolving Credit Sub Facility

Term Loan

Long-term Debt

Other long-term assets

Six3 Systems Holdings II Inc

Principal Payment Through 31 December, 2016

Principal Payment Thereafter 31 December, 2016

Debt Instrument [Line Items]

Credit facility maximum borrowing capacity

$1,681,300,000

$850,000,000

$750,000,000

$50,000,000

$25,000,000

$831,300,000

$150,000,000

Credit facility borrowing capacity, description

'At any time and so long as no default has occurred, the Company has the right to increase the Revolving Facility or the Term Loan in an aggregate principal amount of up to the greater of $400.0 million or an amount subject to 2.75 times senior secured leverage, calculated assuming the Revolving Facility is fully drawn, with applicable lender approvals.

Increase in credit facility

100,000,000

700,000,000

Loss on extinguishment on debt

4,116,000

4,100,000

-4,100,000

Loan maturity date

15-Nov-14

Credit facility, amount outstanding

475,000,000

400,000

Term loan period

'5 years

Term loan frequency of payment

'Quarterly

Term loan principal payment

10,400,000

20,800,000

Outstanding amount under Term Loan

1,285,469,000

611,250,000

475,000,000

180,000,000

810,469,000

131,250,000

Outstanding borrowings interest rate

2.26%

Debt issuance cost capitalized

18,100,000

Unamortized debt issuance expense

$5,178,000

$3,522,000

$5,200,000

$6,200,000

LONG_TERM_DEBT_Detail_Textuals1

LONG TERM DEBT (Detail Textuals 1) (USD $)

1 Months Ended

12 Months Ended

0 Months Ended

12 Months Ended

Jun. 30, 2012

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2012

Jun. 30, 2014

16-May-07

Jun. 30, 2014

Warrants

Cash Flow Hedging

Convertible Notes Payable

Interest Rate Swap

Call Options

Non-Cash Interest Expense

Warrants

Subsequent to Year End

Debt Instrument [Line Items]

Settlement of Convertible Notes in cash

$300,000,000

Convertible senior subordinated notes, issuance date

16-May-07

Convertible senior subordinated notes, maturity date

1-May-14

Convertible Notes - Aggregate conversion value

406,800,000

Settlement of Convertible Notes in shares

1,400,000

Initial conversion price per share

$54.65

Outstanding borrowings interest rate

6.90%

Proceeds from notes payable

300,000,000

Fair value of the liability component of notes

221,900,000

Fair value of equity component note

78,100,000

Debt discount amortization period

'7 years

Total debt issuance costs

13,369,000

612,000

1,249,000

Purchase of call option

84,400,000

Purchase of common stock

2,000,000

5,500,000

Income tax benefit on discount on issue of notes

32,800,000

Deferred tax liability

30,700,000

Common shares issuable under the sale of warrants

5,500,000

Warrant's exercise price

$68.31

Proceeds from sales of warrant

56,500,000

Swap agreements

$400,000,000

$100,000,000

LEASES_Future_Minimum_Lease_Pa

LEASES (Future Minimum Lease Payments Due Under Non-Cancelable Leases) (Details) (USD $)	Jun. 30, 2014
In Thousands, unless otherwise specified	Jun. 30, 2014
Leases [Abstract]	'
2015	$49,065
2016	45,583
2017	39,609
2018	29,916
2019	25,086
Thereafter	52,114
Total minimum lease payments	$241,373

LEASES_Detail_Textuals

LEASES (Detail Textuals) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Leases [Abstract]	'	'	'
Operating leases expiration term	'10 years	'	'
Net sublease rental income	$0.50	'	'
Non-cancelable sublease rental income receivable period	'40 months	'	'
Operating lease rental expenses	$51.80	$50.60	$46.40

OTHER_LONGTERM_LIABILITIES_Com

OTHER LONG-TERM LIABILITIES (Components Of Other Long-Term Liabilities) (Details) (USD $)	Jun. 30, 2014	Jun. 30, 2013
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Other Long-Term Liabilities [Abstract]	'	'
Deferred rent, net of current portion	$31,662	$28,777
Reserve for unrecognized tax benefits	9,138	6,384
Deferred revenue	8,397	8,356
Accrued post-retirement obligations	5,557	5,180
Interest rate swap agreements	7,774	1,765
Other	825	1,111
Total other long-term liabilities	$63,353	$51,573

OTHER_LONGTERM_LIABILITIES_Det

OTHER LONG-TERM LIABILITIES (Detail Textuals) (USD $)	12 Months Ended
In Millions, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Other Long-Term Liabilities [Abstract]	'	'
Costs associated with post-retirement plan	$0.30	$0.80
Fair value of swap agreements	$7.80	$1.80

BUSINESS_SEGMENT_CUSTOMER_AND_2

BUSINESS SEGMENT, CUSTOMER AND GEOGRAPHIC INFORMATION (Summarized Financial Information Of Reportable Segments) (Details) (USD $)

3 Months Ended

12 Months Ended

In Thousands, unless otherwise specified

Jun. 30, 2014

Mar. 31, 2014

Dec. 31, 2013

Sep. 30, 2013

Jun. 30, 2013

Mar. 31, 2013

Dec. 31, 2012

Sep. 30, 2012

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2012

Jun. 30, 2011

Revenue from external customers

$905,718

$900,393

$894,186

$864,265

$912,931

$906,196

$931,627

$931,236

$3,564,562

$3,681,990

$3,774,473

Net income attributable to CACI

36,534

30,828

34,962

32,992

37,938

38,367

39,676

35,708

135,316

151,689

167,454

Net assets

1,359,166

1,207,572

1,359,166

1,207,572

1,164,445

1,309,616

Goodwill

2,188,569

1,476,965

2,188,569

1,476,965

1,406,953

Total long-term assets

2,623,289

1,773,290

2,623,289

1,773,290

1,702,430

Total assets

3,359,138

2,497,071

3,359,138

2,497,071

2,388,222

Capital expenditures

15,279

15,439

18,284

Depreciation and amortization

65,181

54,078

55,962

Domestic

Revenue from external customers

3,421,544

3,547,459

3,659,367

Net income attributable to CACI

124,599

141,741

159,421

Net assets

1,221,641

1,094,098

1,221,641

1,094,098

1,061,360

Goodwill

2,099,821

1,397,272

2,099,821

1,397,272

1,325,814

Total long-term assets

2,509,992

1,669,585

2,509,992

1,669,585

1,600,726

Total assets

3,170,121

2,333,452

3,170,121

2,333,452

2,233,480

Capital expenditures

13,737

13,667

16,613

Depreciation and amortization

61,207

50,568

52,865

International

Revenue from external customers

143,018

134,531

115,106

Net income attributable to CACI

10,717

9,948

8,033

Net assets

137,525

113,474

137,525

113,474

103,085

Goodwill

88,748

79,693

88,748

79,693

81,139

Total long-term assets

113,297

103,705

113,297

103,705

101,704

Total assets

189,017

163,619

189,017

163,619

154,742

Capital expenditures

1,542

1,772

1,671

Depreciation and amortization

$3,974

$3,510

$3,097

BUSINESS_SEGMENT_CUSTOMER_AND_3

BUSINESS SEGMENT, CUSTOMER AND GEOGRAPHIC INFORMATION (Revenue By Customer Sector) (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Revenue, Major Customer [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Revenue from external customers	$905,718	$900,393	$894,186	$864,265	$912,931	$906,196	$931,627	$931,236	$3,564,562	$3,681,990	$3,774,473
Sales	'	'	'	'	'	'	'	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Revenue from external customers	'	'	'	'	'	'	'	'	3,564,562	3,681,990	3,774,473
Revenue percentage	'	'	'	'	'	'	'	'	100.00%	100.00%	100.00%
Department of Defense \| Sales	'	'	'	'	'	'	'	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Revenue from external customers	'	'	'	'	'	'	'	'	2,578,024	2,735,102	2,944,924
Revenue percentage	'	'	'	'	'	'	'	'	72.30%	74.30%	78.00%
Federal civilian agencies \| Sales	'	'	'	'	'	'	'	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Revenue from external customers	'	'	'	'	'	'	'	'	771,662	741,053	620,870
Revenue percentage	'	'	'	'	'	'	'	'	21.70%	20.10%	16.50%
Commercial and other \| Sales	'	'	'	'	'	'	'	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Revenue from external customers	'	'	'	'	'	'	'	'	199,521	190,142	193,840
Revenue percentage	'	'	'	'	'	'	'	'	5.60%	5.20%	5.10%
State and local governments \| Sales	'	'	'	'	'	'	'	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'	'	'	'	'	'	'	'
Revenue from external customers	'	'	'	'	'	'	'	'	$15,355	$15,693	$14,839
Revenue percentage	'	'	'	'	'	'	'	'	0.40%	0.40%	0.40%

BUSINESS_SEGMENT_CUSTOMER_AND_4

BUSINESS SEGMENT, CUSTOMER AND GEOGRAPHIC INFORMATION (Detail Textuals)	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Revenue, Major Customer [Line Items]	'	'	'
Number of reportable segments	2	'	'
Sales	'	'	'
Revenue, Major Customer [Line Items]	'	'	'
Revenue percentage	100.00%	100.00%	100.00%
Agencies and U.S. Government \| Sales	'	'	'
Revenue, Major Customer [Line Items]	'	'	'
Revenue percentage	94.00%	94.40%	94.50%

INVESTMENTS_IN_JOINT_VENTURES_

INVESTMENTS IN JOINT VENTURES (Details) (AC FIRST LLC, USD $)	1 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Jul. 31, 2009	Jun. 30, 2014	Jun. 30, 2013
AC FIRST LLC	'	'	'
Schedule of Equity Method Investments [Line Items]	'	'	'
Ownership percentage of parent	49.00%	'	'
Ownership percentage of joint venture partner	51.00%	'	'
Current investment in joint venture	'	$5.60	$9.70
Net income share of joint venture partner	'	1.5	2.6
Cash distributions received	'	5.6	6.2
Capital contributions	'	'	$1.40

INVESTMENTS_IN_JOINT_VENTURES_1

INVESTMENTS IN JOINT VENTURES (Details 1) (eVenture Technologies LLC)	Jan. 31, 2007
Related Party Transaction [Line Items]	'
Ownership percentage by parent	60.00%
ActioNet, Inc.	'
Related Party Transaction [Line Items]	'
Ownership percentage by joint venturer	40.00%

OTHER_COMMITMENTS_AND_CONTINGE1

OTHER COMMITMENTS AND CONTINGENCIES (Detail Textuals) (USD $)	1 Months Ended	12 Months Ended
In Millions, unless otherwise specified	Mar. 26, 2012	Jun. 30, 2014	Jun. 30, 2014
	Contract	Minimum	Maximum
Loss Contingencies [Line Items]	'	'	'
Number of company contracts subpoenaed	1	'	'
Accrued estimates of the possible losses, low	$0	'	'
Accrued estimates of the possible losses, high	1.8	'	'
Value added tax examination, range of possible losses	'	1.5	3.5
Sales and use tax examination, range of possible losses	'	$2.80	$4.80

INCOME_TAXES_Schedule_Of_Incom

INCOME TAXES (Schedule Of Income Loss Before Income Tax Expense) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Income Tax Disclosure [Abstract]	'	'	'
Domestic	$204,879	$231,342	$263,790
Foreign	13,763	12,694	11,201
Income before income taxes	$218,642	$244,036	$274,991

INCOME_TAXES_Schedule_Of_Compo

INCOME TAXES (Schedule Of Components Of Income Tax Expense) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Current:	'	'	'
Federal	$53,055	$47,038	$76,874
State and local	11,456	10,767	16,678
Foreign	3,256	3,440	3,332
Total current	67,767	61,245	96,884
Deferred:	'	'	'
Federal	12,580	26,218	9,000
State and local	2,680	5,313	1,458
Foreign	299	-429	195
Total deferred	15,559	31,102	10,653
Total income tax expense	$83,326	$92,347	$107,537

INCOME_TAXES_Schedule_Of_Effec

INCOME TAXES (Schedule Of Effective Income Tax Rate Reconciliation) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Income Tax Disclosure [Abstract]	'	'	'
Expected tax expense computed at federal rate	$76,525	$85,413	$96,247
State and local taxes, net of federal benefit	9,188	10,452	11,788
(Nonincludible) nondeductible items	1,150	-929	2,424
Incremental effect of foreign tax rates	-1,885	-1,376	-1,026
Other	-1,652	-1,213	-1,896
Total income tax expense	$83,326	$92,347	$107,537

INCOME_TAXES_Schedule_Of_Defer

INCOME TAXES (Schedule Of Deferred Tax Assets And Liabilities) (Details) (USD $)	Jun. 30, 2014	Jun. 30, 2013
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Deferred tax assets:	'	'
Deferred compensation and post-retirement obligations	$35,360	$34,597
Reserves and accruals	28,176	27,640
Stock-based compensation	8,301	13,409
Deferred rent	4,632	3,522
Other	13,127	7,900
Total deferred tax assets	89,596	87,068
Deferred tax liabilities:	'	'
Goodwill and other intangible assets	-243,035	-162,739
Unbilled revenue	-6,948	-11,583
Prepaid expenses	-4,986	-4,638
Other	-9,780	-9,040
Total deferred tax liabilities	-264,749	-188,000
Net deferred tax liability	($175,153)	($100,932)

INCOME_TAXES_Schedule_Of_Unrec

INCOME TAXES (Schedule Of Unrecognized Tax Benefits) (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Income Tax Disclosure [Abstract]	'	'	'
Beginning of year	$8,184	$7,013	$5,897
Additions based on current year tax positions	2,023	1,261	1,181
Lapse of statute of limitations	-426	-90	-65
Settlement with taxing authorities	-145	'	'
End of year	$9,636	$8,184	$7,013

INCOME_TAXES_Detail_Textuals

INCOME TAXES (Detail Textuals) (USD $)	12 Months Ended
INCOME TAXES (Detail Textuals) (USD $)	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Income Tax Disclosure [Abstract]	'	'	'
Statutory U.S. income tax rate	35.00%	35.00%	35.00%
Reclassification of non current deferred tax liabilities not material	$4,200,000	'	'
Undistributed earnings	8,800,000	'	'
Reserve for unrecognized tax benefits	9,138,000	6,384,000	'
Unrecognized tax benefit that would impact the company's effective tax rate	$2,400,000	$2,600,000	$2,400,000

RETIREMENT_SAVINGS_PLANS_Detai

RETIREMENT SAVINGS PLANS (Detail Textuals) (USD $)	12 Months Ended
RETIREMENT SAVINGS PLANS (Detail Textuals) (USD $)	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Accrued compensation and benefits	$183,361,000	$166,538,000	'
Supplemental retirement savings plan obligations and other long-term liabilities	2,116,000	13,712,000	12,092,000
401 (k) Plan	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Employee contribution to defined contribution plan	50.00%	'	'
Matching contribution percentage of cash compensation	6.00%	'	'
Matching contribution percentage of cash compensation	75.00%	'	'
Contribution expense	21,900,000	26,800,000	26,100,000
Employer's contributions vesting period	'3 years	'	'
International Operations Defined Contribution Plan	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Contributions by employer	1,100,000	2,000,000	1,800,000
Supplemental Savings Plan	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Contribution expense	300,000	1,000,000	1,200,000
Contributions by employer	300,000	'	'
Employee contribution percentage	50.00%	'	'
Employee contribution percentage of bonus and commission	100.00%	'	'
Employee contribution percentage that exceed limit set forth in defined contribution plan	5.00%	'	'
Employer's contributions vesting period	'5 years	'	'
Compensation limit on contributions by employer per year	260,000	'	'
Obligations due to participants	84,400,000	'	'
Accrued compensation and benefits	6,900,000	'	'
Supplemental retirement savings plan obligations and other long-term liabilities	1,700,000	'	'
Investment gains	7,300,000	'	'
Participant compensation deferral	6,600,000	'	'
Distributions paid to participants	12,500,000	'	'
401 (k) Six3 Retirement Savings Plans	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Contribution expense	1,100,000	'	'
Employer discretionary contribution	10,400,000	'	'
Rabbi Trust \| Supplemental Savings Plan	'	'	'
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]	'	'	'
Investment gains	7,200,000	'	'
Carrying value of investment	$88,500,000	'	'

STOCK_PLANS_AND_STOCKBASED_COM2

STOCK PLANS AND STOCK-BASED COMPENSATION - Summary of the components of stock-based compensation expense with the income tax benefits realized (Details) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Stock-based compensation included in indirect costs and selling expense:	'	'	'
Total stock-based compensation expense	$11,557	$8,832	$15,499
Income tax benefit recognized for stock-based compensation expense	4,392	3,342	6,062
Restricted Shares And Restricted Stock Units	'	'	'
Stock-based compensation included in indirect costs and selling expense:	'	'	'
Total stock-based compensation expense	11,516	8,150	13,526
Income tax benefit recognized for stock-based compensation expense	8,800	6,900	5,300
SSARs/ Non-qualified Stock Options	'	'	'
Stock-based compensation included in indirect costs and selling expense:	'	'	'
Total stock-based compensation expense	$41	$682	$1,973

STOCK_PLANS_AND_STOCKBASED_COM3

STOCK PLANS AND STOCK-BASED COMPENSATION - Summary of activity for outstanding SSARs And Stock Options (Details 1) (SSARs/ Non-qualified Stock Options, USD $)

12 Months Ended

Jun. 30, 2013

Jun. 30, 2012

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2012

Jun. 30, 2014

Jun. 30, 2012

Exercise Price 34.10 - 65.04

Exercise Price 34.10 - 62.48

Exercise Price 45.77 - 54.39

Exercise Price 48.83 - 62.48

Exercise Price 34.10 - 58.40

Exercise Price 42.95 - 49.36

Exercise Price 36.13 - 65.04

Exercise Price 37.67 - 59.30

Exercise Price 45.77 - 49.36

Exercise Price 49.36

Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]

Exercise Price, Minimum

$34.10

$45.77

$48.83

$34.10

$42.95

$36.13

$37.67

$45.77

Exercise Price, Maximum

$65.04

$62.48

$54.39

$62.48

$58.40

$49.36

$65.04

$59.30

$49.36

Number of Shares, Outstanding, Beginning Balance

1,683,698

2,110,304

275,550

Number of Shares, Exercisable, Beginning Balance

1,362,451

1,177,209

243,170

Number of Shares, Exercised

-365,306

-838,618

-180,370

Number of Shares, Forfeited

-32,630

-10,350

-1,150

Number of Shares, Expired

-28,670

-559,180

-2,080

Number of Shares, Outstanding, Ending Balance

1,683,698

275,550

91,950

Number of Shares, Exercisable, Ending Balance

1,362,451

243,170

91,950

Weighted Average Exercise Price, Outstanding, Beginning Balance

$53.62

$52.78

$48.62

Weighted Average Exercise Price, Exercisable, Beginning Balance

$54.79

$55.19

$48.58

Weighted Average Exercise Price, Exercised

$48.72

$48.76

$48.53

Weighted Average Exercise Price, Forfeited

$48.64

$48.37

$49.36

Weighted Average Exercise Price, Expired

$60.20

$63.46

$49.36

Weighted Average Exercise Price, Outstanding, Ending Balance

$53.62

$48.77

$48.62

Weighted Average Exercise Price, Exercisable, Ending Balance

$54.79

$48.77

$48.58

Weighted Average Grant Date Fair Value, Outstanding, Beginning Balance

$21.21

$20.77

$17.54

Weighted Average Grant Date Fair Value, Exercisable, Beginning Balance

$22.01

$22.17

$17.60

Weighted Average Grant Date Fair Value, Exercised

$19.10

$18.93

$17.81

Weighted Average Grant Date Fair Value, Forfeited

$17.95

$17.03

$17.12

Weighted Average Grant Date Fair Value, Expired

$19.19

$26.51

$17.12

Weighted Average Grant Date Fair Value, Outstanding, Ending Balance

$21.21

$17.02

$17.54

Weighted Average Grant Date Fair Value, Exercisable, Ending Balance

$22.01

$17.02

$17.60

STOCK_PLANS_AND_STOCKBASED_COM4

STOCK PLANS AND STOCK-BASED COMPENSATION - Summary of activity related to SSARs/non-qualified stock options and RSUs/restricted shares issued (Details 2) (USD $)	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
SSARs/ Non-qualified Stock Options	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Number of Shares, Unvested, June 30	32,380	321,247	933,095
Number of Shares, Granted	'	'	'
Number of Shares, Exercised/Issued	-31,230	-278,517	-579,218
Number of Shares, Forfeited/Lapsed	-1,150	-10,350	-32,630
Number of Shares, Unvested, June 30	'	32,380	321,247
Weighted Average Grant Date Fair Value, Unvested	$17.02	$17.80	$18.99
Weighted Average Grant Date Fair Value, Granted	'	'	'
Weighted Average Grant Date Fair Value, Vested	$17.02	$17.92	$19.72
Weighted Average Grant Date Fair Value, Forfeited	$17.12	$17.03	$17.95
Weighted Average Grant Date Fair Value, Unvested	'	$17.02	$17.80
Restricted Shares And Restricted Stock Units	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Number of Shares, Unvested, June 30	1,042,746	1,651,321	1,322,101
Number of Shares, Granted	254,356	605,277	817,918
Number of Shares, Exercised/Issued	-360,857	-347,497	-266,658
Number of Shares, Forfeited/Lapsed	-98,003	-866,355	-222,040
Number of Shares, Unvested, June 30	838,242	1,042,746	1,651,321
Weighted Average Grant Date Fair Value, Beginning Balance	$47.74	$45.97	$45.23
Weighted average grant date fair value, Granted	$72.17	$59.07	$47.34
Weighted Average Grant Date Fair Value, Vested	$45.07	$47.27	$48.09
Weighted Average Grant Date Fair Value, Forfeited	$54.94	$53.04	$46.59
Weighted Average Grant Date Value, Ending Balance	$55.39	$47.74	$45.97

STOCK_PLANS_AND_STOCKBASED_COM5

STOCK PLANS AND STOCK-BASED COMPENSATION - Summary of information regarding the cash proceeds received, and the intrinsic value and total tax benefits realized resulting from stock option exercises (Details 3) (USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Stock Plans And Stock-Based Compensation [Abstract]	'	'	'
Cash proceeds received	'	$13,050	$7,466
Intrinsic value realized	3,868	6,594	3,865
Income tax benefit realized	$1,470	$2,595	$1,521

STOCK_PLANS_AND_STOCKBASED_COM6

STOCK PLANS AND STOCK-BASED COMPENSATION - Summary of information regarding the SSARs and stock options outstanding and exercisable (Details 4) (USD $)	12 Months Ended
In Thousands, except Share data, unless otherwise specified	Jun. 30, 2014
$30.00-$39.99	'
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]	'
Range of exercise Price, minimum	$30
Range of exercise Price, maximum	$39.99
SSARs and Options Outstanding, Number of Instruments	6,400
SSARs and Options Outstanding, Weighted Average Exercise Price	$37.67
SSARs and Options Outstanding, Weighted Average Remaining Contractual Life	'1 year 1 month 20 days
SSARs and Options Outstanding, Intrinsic Value	$208
SSARs and Options Exercisable, Number of Instruments	6,400
SSARs and Options Exercisable, Weighted Average Exercise Price	$37.67
SSARs and Options Exercisable, Weighted Average Remaining Contractual Life	'1 year 1 month 20 days
SSARs and Options Exercisable, Intrinsic Value	208
$40.00-$49.99	'
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]	'
Range of exercise Price, minimum	$40
Range of exercise Price, maximum	$49.99
SSARs and Options Outstanding, Number of Instruments	75,550
SSARs and Options Outstanding, Weighted Average Exercise Price	$48.31
SSARs and Options Outstanding, Weighted Average Remaining Contractual Life	'11 months 23 days
SSARs and Options Outstanding, Intrinsic Value	1,655
SSARs and Options Exercisable, Number of Instruments	75,550
SSARs and Options Exercisable, Weighted Average Exercise Price	$48.31
SSARs and Options Exercisable, Weighted Average Remaining Contractual Life	'11 months 23 days
SSARs and Options Exercisable, Intrinsic Value	1,655
$50.00-$59.99	'
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]	'
Range of exercise Price, minimum	$50
Range of exercise Price, maximum	$59.99
SSARs and Options Outstanding, Number of Instruments	10,000
SSARs and Options Outstanding, Weighted Average Exercise Price	$59.30
SSARs and Options Outstanding, Weighted Average Remaining Contractual Life	'6 months 22 days
SSARs and Options Outstanding, Intrinsic Value	109
SSARs and Options Exercisable, Number of Instruments	10,000
SSARs and Options Exercisable, Weighted Average Exercise Price	$59.30
SSARs and Options Exercisable, Weighted Average Remaining Contractual Life	'6 months 22 days
SSARs and Options Exercisable, Intrinsic Value	$109

STOCK_PLANS_AND_STOCKBASED_COM7

STOCK PLANS AND STOCK-BASED COMPENSATION - Summary of activity related to the MSPP and the DSPP (Details 5) (USD $)	12 Months Ended
	Jun. 30, 2014
MSPP	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of Shares, Unvested, Beginning Balance	29,291
Granted	542
Issued	-13,832
Forfeited	-2,201
Number of Shares, Unvested, Ending Balance	13,800
Weighted average grant date fair value as adjusted for the applicable discount	$43.99
DSPP	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of Shares, Unvested, Beginning Balance	137
Granted	'
Issued	-137
Forfeited	'
Number of Shares, Unvested, Ending Balance	'
Weighted average grant date fair value as adjusted for the applicable discount	'
Weighted average grant date fair value	'

STOCK_PLANS_AND_STOCKBASED_COM8

STOCK PLANS AND STOCK-BASED COMPENSATION (Detail Textuals) (USD $)	12 Months Ended
In Millions, except Share data, unless otherwise specified	Jun. 30, 2014
Restricted Shares And Restricted Stock Units	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Unrecognized compensation cost	$21.50
Weighted-average period to recognize unrecognized compensation cost (in years)	'3 years 1 month 6 days
2006 Stock Incentive Plan \| PRSUs	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Period to establish average share price for performance measurement	'90 days
2006 Stock Incentive Plan \| PRSUs \| September 2013	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
PRSUs granted	202,170
2006 Stock Incentive Plan \| RSUs	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Description of issuance of awards condition	'If NATP for the year ending June 30, 2014 exceeds the specified NATP and the average share price of the Company's stock for the 90 day period ending September 13, 2014 exceeds the average share price of the Company's stock for the 90 day period ended September 13, 2013 by 100 percent or more then an additional 202,170 RSUs could be earned by participants.
Number of additional awards to be issued pursuant to condition	202,170
Description of vesting of awards	'In addition to the performance and market conditions, there is a service vesting condition which stipulates that 50 percent of the earned award will vest on September 1, 2016 and 50 percent of the earned award will vest on September 1, 2017
2006 Stock Incentive Plan \| RSUs \| September 2016	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Vesting percentage of awards	50.00%
2006 Stock Incentive Plan \| RSUs \| September 2017	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Vesting percentage of awards	50.00%
2006 Plan And Predecessor Plan	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'
Number of shares authorized for grants	12,450,000
Cumulative grants of equity instruments	13,166,042
Number of equity instruments forfeited	4,106,751

STOCK_PLANS_AND_STOCKBASED_COM9

STOCK PLANS AND STOCK-BASED COMPENSATION (Detail Textuals 1) (USD $)	12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Excess tax benefits recognized	$4,700,000	$1,600,000	$400,000
Vesting period one	'3 years	'	'
Vesting period two	'4 years	'	'
Vesting period three	'5 years	'	'
Maximum exercisable period for non-qualified stock options	'10 years	'	'
Term of equity instruments granted (in years)	'7 years	'	'
Vesting percentage based on death or permanent disability of grantees	100.00%	'	'
Vesting percentage based upon retirement	100.00%	'	'
Tax benefit realized from vesting of restricted stock units	4,392,000	3,342,000	6,062,000
Grant date fair value of stock options vested	500,000	5,000,000	11,400,000
Stock-based compensation expense	11,557,000	8,832,000	15,499,000
Restricted Shares And Restricted Stock Units	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Weighted-average fair value of equity instruments granted	$72.17	$59.07	$47.34
Total intrinsic value of RSUs that vested	23,100,000	17,600,000	13,400,000
Tax benefit realized from vesting of restricted stock units	8,800,000	6,900,000	5,300,000
Unrecognized compensation cost	$21,500,000	'	'
Weighted-average period to recognize unrecognized compensation cost (in years)	'3 years 1 month 6 days	'	'
ESPP	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Number of shares authorized for grants	1,250,000	'	'
Share purchase price over fair market value	95.00%	'	'
Maximum number of shares that an eligible employee can purchase	'The maximum number of shares that an eligible employee can purchase during any quarter is equal to two times an amount determined as follows: 20 percent of such employee's compensation over the quarter, divided by 95 percent of the fair market value of a share of common stock on the last day of the quarter.	'	'
Percent of employee compensation over the quarter	20.00%	'	'
Percent of fair market value of shares	95.00%	'	'
MSPP	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Vesting period (in years)	'3 years	'	'
Number of shares authorized for grants	500,000	'	'
PRSUs granted	542	'	'
DSPP	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Number of shares authorized for grants	75,000	'	'
PRSUs granted	'	'	'
Participants \| ESPP	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Shares purchased under ESPP	991,197	'	'
Weighted-average purchase price per share	$47.46	'	'
Employees \| ESPP	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Shares purchased under ESPP	52,964	'	'
Weighted-average purchase price per share	$66	'	'
Director \| DSPP	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Percentage of annual retainer fees in lieu of which RSU received	100.00%	'	'
Senior Executive \| MSPP	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'
Percentage of annual bonus in lieu of which RSU received	100.00%	'	'

FAIR_VALUE_OF_FINANCIAL_INSTRU2

FAIR VALUE OF FINANCIAL INSTRUMENTS (Details) (USD $)	Jun. 30, 2014	Jun. 30, 2013
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Interest rate swap agreements	$7,800	$1,800
Fair Value, Measurements, Recurring \| Long-Term Asset \| Level 1	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Non-COLI assets held in connection with the Supplemental Savings Plan	'	830
Fair Value, Measurements, Recurring \| Current Liability \| Level 3	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Contingent Consideration	'	2,977
Fair Value, Measurements, Recurring \| Other long-term liabilities \| Level 2 \| Interest Rate Swap	'	'
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'
Interest rate swap agreements	$7,774	$1,765

FAIR_VALUE_OF_FINANCIAL_INSTRU3

FAIR VALUE OF FINANCIAL INSTRUMENTS (Detail textuals) (TCL, USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2014
	Jun. 30, 2014	Jun. 30, 2012	Payment February 2013	Payment February 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]	'	'	'	'
Contingent consideration	'	$6,000	'	'
Contingent consideration earned period (in years)	'	'1 year	'	'
Percentage of contingent consideration paid	100.00%	'	50.00%	50.00%

EARNINGS_PER_SHARE_Computation

EARNINGS PER SHARE (Computation Of Earnings Per Share And Weighted Average Number Of Basic And Diluted Shares) (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Earnings Per Share [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Net income attributable to CACI	$36,534	$30,828	$34,962	$32,992	$37,938	$38,367	$39,676	$35,708	$135,316	$151,689	$167,454
Weighted average number of basic shares outstanding during the period	23,498	23,473	23,433	23,314	23,136	23,021	22,852	23,032	23,429	23,010	27,077
Dilutive effect of SSARs/stock options and RSUs/restricted shares after application of treasury stock method	'	'	'	'	'	'	'	'	441	743	879
Dilutive effect of the Notes	'	'	'	'	'	'	'	'	1,285	132	111
Dilutive effect of the accelerated share repurchase agreement	'	'	'	'	'	'	'	'	'	'	44
Weighted average number of diluted shares outstanding during the period	24,517	25,973	25,297	24,835	24,318	23,706	23,537	23,980	25,155	23,885	28,111
Earnings Per Share, Basic	$1.55	$1.31	$1.49	$1.42	$1.64	$1.67	$1.74	$1.55	$5.78	$6.59	$6.18
Earnings Per Share, Diluted	$1.49	$1.19	$1.38	$1.33	$1.56	$1.62	$1.69	$1.49	$5.38	$6.35	$5.96

EARNINGS_PER_SHARE_Detail_Text

EARNINGS PER SHARE (Detail Textuals) (USD $)	0 Months Ended	1 Months Ended	12 Months Ended			0 Months Ended
In Millions, except Share data, unless otherwise specified	1-May-14	Jun. 30, 2012	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Aug. 29, 2011
	1-May-14	Contract	Jun. 30, 2014	Jun. 30, 2013	Warrants	Bank Of America
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]	'	'	'	'	'	'
Dilutive effect of the Notes	'	'	17,000,000	700,000	'	'
Notes conversion price	'	'	$54.65	'	'	'
Warrant's exercise price	'	'	'	'	$68.31	'
Common stock to repurchase initial, value	'	'	'	'	'	$209.70
Stock repurchase plan, shares authorized	'	4,000,000	'	'	'	4,000,000
Average price per share	'	'	'	'	'	$56.51
Number of repurchase plans	'	2	'	'	'	'
Repurchases of common stock, shares	'	2,000,000	'	'	'	'
Common stock repurchased, average price per share	'	'	$56.51	'	'	'
Common stock authorization to repurchase remaining, value	'	'	'	'	'	16.3
Common stock authorization to repurchase, value	'	'	'	'	'	$226
Numbers of common stock shares issued accordance with Notes	1,400,000	'	'	'	'	'
Common stock shares received pursuant to terms of call option	1,400,000	'	'	'	'	'

QUARTERLY_FINANCIAL_DATA_UNAUD2

QUARTERLY FINANCIAL DATA (UNAUDITED) (Details) (USD $)	3 Months Ended								12 Months Ended
In Thousands, except Per Share data, unless otherwise specified	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Quarterly Financial Data [Abstract]	'	'	'	'	'	'	'	'	'	'	'
Revenue	$905,718	$900,393	$894,186	$864,265	$912,931	$906,196	$931,627	$931,236	$3,564,562	$3,681,990	$3,774,473
Income from operations	69,235	60,532	66,454	61,182	67,902	68,620	69,582	64,737	257,403	270,841	299,849
Net income attributable to CACI	$36,534	$30,828	$34,962	$32,992	$37,938	$38,367	$39,676	$35,708	$135,316	$151,689	$167,454
Basic earnings per share (in dollars per share)	$1.55	$1.31	$1.49	$1.42	$1.64	$1.67	$1.74	$1.55	$5.78	$6.59	$6.18
Diluted earnings per share (in dollars per share)	$1.49	$1.19	$1.38	$1.33	$1.56	$1.62	$1.69	$1.49	$5.38	$6.35	$5.96
Weighted-average basic shares outstanding (in shares)	23,498	23,473	23,433	23,314	23,136	23,021	22,852	23,032	23,429	23,010	27,077
Weighted-average diluted shares outstanding (in shares)	24,517	25,973	25,297	24,835	24,318	23,706	23,537	23,980	25,155	23,885	28,111

VALUATION_AND_QUALIFYING_ACCOU1

VALUATION AND QUALIFYING ACCOUNTS (Details) (Allowances for doubtful accounts, USD $)	12 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012
Allowances for doubtful accounts	'	'	'
Valuation and Qualifying Accounts Disclosure [Line Items]	'	'	'
Balance at Beginning of Period	$3,203	$3,590	$3,738
Additions at Cost	798	2,853	2,583
Deductions	-521	-3,176	-2,689
Other Changes	254	-64	-42
Balance at End of Period	$3,734	$3,203	$3,590