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Supplemental Consolidating Financial Statements Income Statement (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jan. 26, 2013 | Jan. 28, 2012 | Jan. 26, 2013 | Jan. 28, 2012
Revenues [Abstract] |  |  |  |
Contract revenues | $ 369,326 | $ 267,407 | $ 692,613 | $ 586,981
EXPENSES: |  |  |  |
Costs of earned revenues, excluding depreciation and amortization | 301,516 | 220,239 | 558,582 | 475,426
General and administrative | 38,827 | 24,275 | 67,652 | 49,633
Depreciation and amortization | 20,819 | 15,528 | 36,130 | 31,486
Intercompany charges (income), net | 0 | 0 | 0 | 0
Total | 361,162 | 260,042 | 662,364 | 556,545
Interest expense, net | (5,748) | (4,177) | (9,946) | (8,350)
Other income, net | 428 | 2,357 | 2,042 | 5,317
INCOME BEFORE INCOME TAXES | 2,844 | 5,545 | 22,345 | 27,403
PROVISION (BENEFIT) FOR INCOME TAXES | 1,381 | 2,060 | 9,022 | 10,952
NET INCOME (LOSS) BEFORE EQUITY IN EARNINGS OF SUBSIDIARIES | 1,463 | 3,485 | 13,323 | 16,451
EQUITY IN EARNINGS OF SUBSIDIARIES | 0 | 0 | 0 | 0
NET INCOME | 1,463 | 3,485 | 13,323 | 16,451
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax | 11 | (58) | 13 | (144)
COMPREHENSIVE INCOME (LOSS) | 1,474 | 3,427 | 13,336 | 16,307
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 | 14,900 | 6,171 | 23,309 | 12,578
Depreciation and amortization | 639 | 768 | 1,380 | 1,556
Intercompany charges (income), net | (17,380) | (7,701) | (27,306) | (15,666)
Total | (1,841) | (762) | (2,617) | (1,532)
Interest expense, net | (1,523) | (768) | (2,299) | (1,538)
Other income, net | (318) | 6 | (318) | 6
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 | 1,463 | 3,485 | 13,323 | 16,451
NET INCOME | 1,463 | 3,485 | 13,323 | 16,451
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax | 11 | (58) | 13 | (144)
COMPREHENSIVE INCOME (LOSS) | 1,474 | 3,427 | 13,336 | 16,307
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 | 148 | 148 | 295 | 295
Depreciation and amortization | 0 | 0 | 0 | 0
Intercompany charges (income), net | 0 | 0 | 0 | 0
Total | 148 | 148 | 295 | 295
Interest expense, net | (4,224) | (3,413) | (7,644) | (6,827)
Other income, net | 0 | 0 | 0 | 0
INCOME BEFORE INCOME TAXES | (4,372) | (3,561) | (7,939) | (7,122)
PROVISION (BENEFIT) FOR INCOME TAXES | (1,808) | (1,392) | (3,205) | (2,832)
NET INCOME (LOSS) BEFORE EQUITY IN EARNINGS OF SUBSIDIARIES | (2,564) | (2,169) | (4,734) | (4,290)
EQUITY IN EARNINGS OF SUBSIDIARIES | 4,027 | 5,654 | 18,057 | 20,741
NET INCOME | 1,463 | 3,485 | 13,323 | 16,451
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax | 11 | (58) | 13 | (144)
COMPREHENSIVE INCOME (LOSS) | 1,474 | 3,427 | 13,336 | 16,307
Subsidiary Guarantors |  |  |  |
Revenues [Abstract] |  |  |  |
Contract revenues | 366,797 | 264,275 | 685,822 | 578,092
EXPENSES: |  |  |  |
Costs of earned revenues, excluding depreciation and amortization | 299,106 | 217,730 | 552,650 | 468,623
General and administrative | 21,279 | 15,429 | 38,895 | 31,832
Depreciation and amortization | 18,969 | 13,692 | 32,255 | 27,552
Intercompany charges (income), net | 17,718 | 7,548 | 27,990 | 15,044
Total | 357,072 | 254,399 | 651,790 | 543,051
Interest expense, net | (1) | 4 | (3) | 15
Other income, net | 756 | 2,352 | 2,321 | 5,413
INCOME BEFORE INCOME TAXES | 10,480 | 12,232 | 36,350 | 40,469
PROVISION (BENEFIT) FOR INCOME TAXES | 4,540 | 4,675 | 14,676 | 16,151
NET INCOME (LOSS) BEFORE EQUITY IN EARNINGS OF SUBSIDIARIES | 5,940 | 7,557 | 21,674 | 24,318
EQUITY IN EARNINGS OF SUBSIDIARIES | 0 | 0 | 0 | 0
NET INCOME | 5,940 | 7,557 | 21,674 | 24,318
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax | 0 | 0 | 0 | 0
COMPREHENSIVE INCOME (LOSS) | 5,940 | 7,557 | 21,674 | 24,318
Non-Guarantor Subsidiaries |  |  |  |
Revenues [Abstract] |  |  |  |
Contract revenues | 2,529 | 3,132 | 6,791 | 8,889
EXPENSES: |  |  |  |
Costs of earned revenues, excluding depreciation and amortization | 2,410 | 2,509 | 5,932 | 6,803
General and administrative | 2,500 | 2,527 | 5,153 | 4,928
Depreciation and amortization | 1,211 | 1,068 | 2,495 | 2,390
Intercompany charges (income), net | (338) | 153 | (684) | 622
Total | 5,783 | 6,257 | 12,896 | 14,743
Interest expense, net | 0 | 0 | 0 | 0
Other income, net | (10) | (1) | 39 | (102)
INCOME BEFORE INCOME TAXES | (3,264) | (3,126) | (6,066) | (5,956)
PROVISION (BENEFIT) FOR INCOME TAXES | (1,351) | (1,223) | (2,449) | (2,367)
NET INCOME (LOSS) BEFORE EQUITY IN EARNINGS OF SUBSIDIARIES | (1,913) | (1,903) | (3,617) | (3,589)
EQUITY IN EARNINGS OF SUBSIDIARIES | 0 | 0 | 0 | 0
NET INCOME | (1,913) | (1,903) | (3,617) | (3,589)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax | 11 | (58) | 13 | (144)
COMPREHENSIVE INCOME (LOSS) | (1,902) | (1,961) | (3,604) | (3,733)
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 | (5,490) | (9,139) | (31,380) | (37,192)
NET INCOME | (5,490) | (9,139) | (31,380) | (37,180)
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss) Arising During Period, Net of Tax | (22) | 116 | (26) | 288
COMPREHENSIVE INCOME (LOSS) | $ (5,512) | $ (9,023) | $ (31,406) | $ (36,892)

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Balance Type: | credit
Period Type: | duration