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Supplemental Consolidating Financial Statements Income Statement (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 9 Months Ended
--- | --- | ---
Apr. 27, 2013 | Apr. 28, 2012 | Apr. 27, 2013 | Apr. 28, 2012
Revenues [Abstract] |  |  |  |
Contract revenues | $ 437,367 | $ 296,103 | $ 1,129,980 | $ 883,085
EXPENSES: |  |  |  |
Costs of earned revenues, excluding depreciation and amortization | 357,664 | 241,386 | 916,247 | 716,812
General and administrative | 38,205 | 26,956 | 105,857 | 76,589
Depreciation and amortization | 24,531 | 15,561 | 60,660 | 47,047
Intercompany charges (income), net | 0 | 0 | 0 | 0
Total | 420,400 | 283,903 | 1,082,764 | 840,448
Interest expense, net | (6,637) | (4,178) | (16,582) | (12,528)
Other income, net | 1,477 | 7,627 | 3,519 | 12,943
INCOME BEFORE INCOME TAXES | 11,807 | 15,649 | 34,153 | 43,052
PROVISION (BENEFIT) FOR INCOME TAXES | 4,608 | 6,004 | 13,631 | 16,956
NET INCOME (LOSS) BEFORE EQUITY IN EARNINGS OF SUBSIDIARIES | 7,199 | 9,645 | 20,522 | 26,096
EQUITY IN EARNINGS OF SUBSIDIARIES | 0 | 0 | 0 | 0
NET INCOME | 7,199 | 9,645 | 20,522 | 26,096
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax | (21) | 90 | (8) | (54)
COMPREHENSIVE INCOME (LOSS) | 7,178 | 9,735 | 20,514 | 26,042
Parent |  |  |  |
Revenues [Abstract] |  |  |  |
Contract revenues | 0 | 0 | 0 | 0
EXPENSES: |  |  |  |
Costs of earned revenues, excluding depreciation and amortization | 0 | 0 | 0 | 0
General and administrative | 10,195 | 7,476 | 33,504 | 20,054
Depreciation and amortization | 754 | 792 | 2,134 | 2,347
Intercompany charges (income), net | (12,592) | (9,016) | (39,897) | (24,682)
Total | (1,643) | (748) | (4,259) | (2,281)
Interest expense, net | (1,643) | (764) | (3,941) | (2,303)
Other income, net | 0 | 16 | (318) | 22
INCOME BEFORE INCOME TAXES | 0 | 0 | 0 | 0
PROVISION (BENEFIT) FOR INCOME TAXES | 0 | 0 | 0 | 0
NET INCOME (LOSS) BEFORE EQUITY IN EARNINGS OF SUBSIDIARIES | 0 | 0 | 0 | 0
EQUITY IN EARNINGS OF SUBSIDIARIES | 7,199 | 9,645 | 20,522 | 26,096
NET INCOME | 7,199 | 9,645 | 20,522 | 26,096
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax | (21) | 90 | (8) | (54)
COMPREHENSIVE INCOME (LOSS) | 7,178 | 9,735 | 20,514 | 26,042
Issuer |  |  |  |
Revenues [Abstract] |  |  |  |
Contract revenues | 0 | 0 | 0 | 0
EXPENSES: |  |  |  |
Costs of earned revenues, excluding depreciation and amortization | 0 | 0 | 0 | 0
General and administrative | 147 | 128 | 442 | 423
Depreciation and amortization | 0 | 0 | 0 | 0
Intercompany charges (income), net | 0 | 0 | 0 | 0
Total | 147 | 128 | 442 | 423
Interest expense, net | (4,963) | (3,416) | (12,607) | (10,243)
Other income, net | 0 | 0 | 0 | 0
INCOME BEFORE INCOME TAXES | (5,110) | (3,544) | (13,049) | (10,666)
PROVISION (BENEFIT) FOR INCOME TAXES | (2,002) | (1,349) | (5,208) | (4,181)
NET INCOME (LOSS) BEFORE EQUITY IN EARNINGS OF SUBSIDIARIES | (3,108) | (2,195) | (7,841) | (6,485)
EQUITY IN EARNINGS OF SUBSIDIARIES | 10,307 | 11,840 | 28,363 | 32,581
NET INCOME | 7,199 | 9,645 | 20,522 | 26,096
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax | (21) | 90 | (8) | (54)
COMPREHENSIVE INCOME (LOSS) | 7,178 | 9,735 | 20,514 | 26,042
Subsidiary Guarantors |  |  |  |
Revenues [Abstract] |  |  |  |
Contract revenues | 434,595 | 293,521 | 1,120,417 | 871,613
EXPENSES: |  |  |  |
Costs of earned revenues, excluding depreciation and amortization | 355,231 | 239,251 | 907,881 | 707,874
General and administrative | 24,597 | 16,899 | 63,492 | 48,731
Depreciation and amortization | 22,538 | 13,637 | 54,793 | 41,190
Intercompany charges (income), net | 12,981 | 8,906 | 40,971 | 23,950
Total | 415,347 | 278,693 | 1,067,137 | 821,745
Interest expense, net | (31) | 2 | (34) | 18
Other income, net | 1,489 | 7,001 | 3,810 | 12,415
INCOME BEFORE INCOME TAXES | 20,706 | 21,831 | 57,056 | 62,301
PROVISION (BENEFIT) FOR INCOME TAXES | 8,095 | 8,350 | 22,772 | 24,500
NET INCOME (LOSS) BEFORE EQUITY IN EARNINGS OF SUBSIDIARIES | 12,611 | 13,481 | 34,284 | 37,801
EQUITY IN EARNINGS OF SUBSIDIARIES | 0 | 0 | 0 | 0
NET INCOME | 12,611 | 13,481 | 34,284 | 37,801
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax | 0 | 0 | 0 | 0
COMPREHENSIVE INCOME (LOSS) | 12,611 | 13,481 | 34,284 | 37,801
Non-Guarantor Subsidiaries |  |  |  |
Revenues [Abstract] |  |  |  |
Contract revenues | 2,772 | 2,582 | 9,563 | 11,472
EXPENSES: |  |  |  |
Costs of earned revenues, excluding depreciation and amortization | 2,433 | 2,135 | 8,366 | 8,938
General and administrative | 3,266 | 2,453 | 8,419 | 7,381
Depreciation and amortization | 1,239 | 1,132 | 3,733 | 3,522
Intercompany charges (income), net | (389) | 110 | (1,074) | 732
Total | 6,549 | 5,830 | 19,444 | 20,573
Interest expense, net | 0 | 0 | 0 | 0
Other income, net | (12) | 610 | 27 | 506
INCOME BEFORE INCOME TAXES | (3,789) | (2,638) | (9,854) | (8,595)
PROVISION (BENEFIT) FOR INCOME TAXES | (1,485) | (997) | (3,933) | (3,363)
NET INCOME (LOSS) BEFORE EQUITY IN EARNINGS OF SUBSIDIARIES | (2,304) | (1,641) | (5,921) | (5,232)
EQUITY IN EARNINGS OF SUBSIDIARIES | 0 | 0 | 0 | 0
NET INCOME | (2,304) | (1,641) | (5,921) | (5,232)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax | (21) | 90 | (8) | (54)
COMPREHENSIVE INCOME (LOSS) | (2,325) | (1,551) | (5,929) | (5,286)
Eliminations and Reclassifications |  |  |  |
Revenues [Abstract] |  |  |  |
Contract revenues | 0 | 0 | 0 | 0
EXPENSES: |  |  |  |
Costs of earned revenues, excluding depreciation and amortization | 0 | 0 | 0 | 0
General and administrative | 0 | 0 | 0 | 0
Depreciation and amortization | 0 | 0 | 0 | (12)
Intercompany charges (income), net | 0 | 0 | 0 | 0
Total | 0 | 0 | 0 | (12)
Interest expense, net | 0 | 0 | 0 | 0
Other income, net | 0 | 0 | 0 | 0
INCOME BEFORE INCOME TAXES | 0 | 0 | 0 | 12
PROVISION (BENEFIT) FOR INCOME TAXES | 0 | 0 | 0 | 0
NET INCOME (LOSS) BEFORE EQUITY IN EARNINGS OF SUBSIDIARIES | 0 | 0 | 0 | 12
EQUITY IN EARNINGS OF SUBSIDIARIES | (17,506) | (21,485) | (48,885) | (58,677)
NET INCOME | (17,506) | (21,485) | (48,885) | (58,665)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax | 42 | (180) | 16 | 108
COMPREHENSIVE INCOME (LOSS) | $ (17,464) | $ (21,665) | $ (48,869) | $ (58,557)

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Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration