Quarterly report pursuant to Section 13 or 15(d)

Consolidating Condensed Statement of Cash Flows Based on Company's Understanding of SEC's Interpretation (Detail)

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Consolidating Condensed Statement of Cash Flows Based on Company's Understanding of SEC's Interpretation (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended
Dec. 28, 2013
Dec. 29, 2012
Condensed Financial Statements, Captions [Line Items]    
Net cash provided (used) by operating activities $ 30,009 $ (28,041)
Additions to property and equipment (5,377) (8,025)
Proceeds from short term investments 3,600 4,885
Payment to acquire companies 0 (4,835)
Investment in guarantor subsidiaries 0 0
Net cash used in investing activities (1,777) (7,975)
Repayments of long-term debt (76) (84)
Borrowings under revolving line of credit 45,000 4,000
Repayments under revolving line of credit (68,000) (3,000)
Payment of deferred financing costs (2,985) 0
Repurchase of common stock (401) (327)
Proceeds from issuance of common stock 200 97
Distribution to minority interest (633) (629)
Excess tax benefits from stock-based awards 171 74
Net cash provided (used) by financing activities (26,724) 131
Effect of exchange rate changes on cash 47 1
Net increase (decrease) in cash and cash equivalents 1,555 (35,884)
Cash and cash equivalents at beginning of period 15,156 48,475
Cash and cash equivalents at end of period 16,711 12,591
Parent [Member]
    
Condensed Financial Statements, Captions [Line Items]    
Net cash provided (used) by operating activities (10,458) (25,358)
Additions to property and equipment (1,549) (4,142)
Proceeds from short term investments 3,600 4,885
Payment to acquire companies   0
Investment in guarantor subsidiaries 35,696 (12,283)
Net cash used in investing activities 37,747 (11,540)
Repayments of long-term debt (39) (55)
Borrowings under revolving line of credit 45,000 4,000
Repayments under revolving line of credit (68,000) (3,000)
Payment of deferred financing costs (2,985)  
Repurchase of common stock (401) (327)
Proceeds from issuance of common stock 200 97
Distribution to minority interest (633) (629)
Excess tax benefits from stock-based awards 171 74
Net cash provided (used) by financing activities (26,687) 160
Effect of exchange rate changes on cash 99 1
Net increase (decrease) in cash and cash equivalents 701 (36,737)
Cash and cash equivalents at beginning of period 12,441 44,662
Cash and cash equivalents at end of period 13,142 7,925
Guarantor Subsidiaries [Member]
    
Condensed Financial Statements, Captions [Line Items]    
Net cash provided (used) by operating activities 40,359 (7,003)
Additions to property and equipment (3,828) (3,883)
Proceeds from short term investments 0 0
Payment to acquire companies   (4,835)
Investment in guarantor subsidiaries (35,588) 16,603
Net cash used in investing activities (39,416) 7,885
Repayments of long-term debt (37) (29)
Borrowings under revolving line of credit 0 0
Repayments under revolving line of credit 0  
Payment of deferred financing costs 0  
Repurchase of common stock 0 0
Proceeds from issuance of common stock 0 0
Distribution to minority interest 0 0
Excess tax benefits from stock-based awards 0 0
Net cash provided (used) by financing activities (37) (29)
Effect of exchange rate changes on cash (52) 0
Net increase (decrease) in cash and cash equivalents 854 853
Cash and cash equivalents at beginning of period 2,715 3,813
Cash and cash equivalents at end of period 3,569 4,666
Eliminations [Member]
    
Condensed Financial Statements, Captions [Line Items]    
Net cash provided (used) by operating activities 108 4,320
Additions to property and equipment 0 0
Proceeds from short term investments 0 0
Payment to acquire companies   0
Investment in guarantor subsidiaries (108) (4,320)
Net cash used in investing activities (108) (4,320)
Repayments of long-term debt 0 0
Borrowings under revolving line of credit 0 0
Repayments under revolving line of credit 0 0
Payment of deferred financing costs 0  
Repurchase of common stock 0 0
Proceeds from issuance of common stock 0 0
Distribution to minority interest 0 0
Excess tax benefits from stock-based awards 0 0
Net cash provided (used) by financing activities 0 0
Effect of exchange rate changes on cash 0 0
Net increase (decrease) in cash and cash equivalents 0 0
Cash and cash equivalents at beginning of period 0 0
Cash and cash equivalents at end of period $ 0 $ 0