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Consolidated Statements Of Shareholders' Equity (USD $) In Thousands | Preferred Stock [Member] | Common Stock [Member] | Additional Paid-In Capital [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Treasury Stock [Member] | Total CACI Shareholders' Equity [Member] | Noncontrolling Interest In Joint Venture [Member] | Total
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning balance at Jun. 30, 2010 |  | $ 3,937 | $ 468,959 | $ 794,277 | $ (9,807) | $ (86,653) | $ 1,170,713 | $ 2,442 | $ 1,173,155
Beginning balance, shares at Jun. 30, 2010 |  | 39,366 |  |  |  | 9,117 |  |  |
Net income attributable to CACI |  |  |  | 144,218 |  |  | 144,218 |  | 144,218
Noncontrolling interest in earnings of joint venture |  |  |  |  |  |  |  | 934 | 934
Stock-based compensation expense |  |  | 17,915 |  |  |  | 17,915 |  | 17,915
Exercise of stock options and vesting of restricted stock units, shares |  | 907 |  |  |  |  |  |  |
Exercise of stock options and vesting of restricted stock units |  | 90 | 16,773 |  |  |  | 16,863 |  | 16,863
Adjustment for unrecognized tax benefit |  |  | 335 |  |  |  | 335 |  | 335
Currency translation adjustment |  |  |  |  | 6,716 |  | 6,716 |  | 6,716
Repurchases of common stock, shares |  |  |  |  |  | 1,041 |  |  |
Repurchases of common stock |  |  |  |  |  | (53,647) | (53,647) |  | (53,647)
Treasury stock issued under stock purchase plans, shares |  |  |  |  |  | (81) |  |  |
Treasury stock issued under stock purchase plans |  |  | 174 |  |  | 3,669 | 3,843 |  | 3,843
Post-retirement benefit costs |  |  |  |  | (24) |  | (24) |  | (24)
Net distributions to noncontrolling interest |  |  |  |  |  |  |  | (692) | (692)
Ending balance at Jun. 30, 2011 |  | 4,027 | 504,156 | 938,495 | (3,115) | (136,631) | 1,306,932 | 2,684 | 1,309,616
Ending 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, shares |  | 353 |  |  |  |  |  |  |
Exercise of stock options and vesting of restricted stock units |  | 35 | 1,170 |  |  |  | 1,205 |  | 1,205
Currency translation adjustment |  |  |  |  | (3,105) |  | (3,105) |  | (3,105)
Change in fair value of interest rate swap agreements |  |  |  |  | (1,332) |  | (1,332) |  | (1,332)
Repurchases of common stock, shares |  |  |  |  |  | 6,000 |  |  |
Repurchases of common stock |  |  |  |  |  | (328,890) | (328,890) |  | (328,890)
Treasury stock issued under stock purchase plans, shares |  |  |  |  |  | (89) |  |  |
Treasury stock issued under stock purchase plans |  |  | 4,296 |  |  | 218 | 4,514 |  | 4,514
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, shares |  | 546 |  |  |  |  |  |  |
Exercise of stock options and vesting of restricted stock units |  | 55 | (5,191) |  |  |  | (5,136) |  | (5,136)
Currency translation adjustment |  |  |  |  | (2,567) |  | (2,567) |  | (2,567)
Change in fair value of interest rate swap agreements |  |  |  |  | 262 |  | 262 |  | 262
Repurchases of common stock, shares |  |  |  |  |  | 2,059 |  |  |
Repurchases of common stock |  |  |  |  |  | (115,201) | (115,201) |  | (115,201)
Treasury stock issued under stock purchase plans, shares |  |  |  |  |  | (97) |  |  |
Treasury stock issued under stock purchase plans |  |  | 1,392 |  |  | 3,313 | 4,705 |  | 4,705
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 |  |  |

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- Definition Aggregate change in value for stock issued during the period as a result of employee stock purchase plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30, 31 -Article 5 + Details
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- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 12 -Paragraph 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Section B -Paragraph 11A -Chapter 1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
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