Consolidating Condensed Statement of Cash Flows (Detail) - USD ($) $ in Thousands |
12 Months Ended |
Sep. 26, 2015 |
Sep. 27, 2014 |
Sep. 28, 2013 |
Condensed Financial Statements, Captions [Line Items] |
|
|
|
Net cash (used) provided by operating activities |
$ 87,449
|
$ 126,467
|
$ (28,282)
|
Additions to property, plant and equipment |
(22,030)
|
(17,173)
|
(25,172)
|
Businesses acquired, net of cash acquired |
(38,384)
|
(20,282)
|
(4,835)
|
Proceeds from disposal of plant and equipment |
|
8,737
|
|
Change in restricted cash and cash equivalents |
1,126
|
(14,283)
|
0
|
Maturities of short term investments |
9,997
|
17,820
|
4,885
|
Investment in short term investments |
(17)
|
(10,000)
|
0
|
Other investing activities |
(546)
|
0
|
0
|
Intercompany investing activities |
0
|
0
|
0
|
Net cash (used) provided by investing activities |
(49,854)
|
(35,181)
|
(25,122)
|
Repayments on revolving line of credit |
(312,000)
|
(301,000)
|
(368,000)
|
Borrowings on revolving line of credit |
312,000
|
278,000
|
391,000
|
Repayments of long-term debt |
(50,289)
|
(367)
|
(332)
|
Proceeds from issuance of common stock |
200
|
1,165
|
613
|
Excess tax benefits from stock-based awards |
2,154
|
498
|
388
|
Repurchase of common stock |
(18,497)
|
(2,332)
|
(2,731)
|
Payment of deferred financing costs |
(258)
|
(3,090)
|
0
|
Distribution to parent |
0
|
0
|
0
|
Distribution to noncontrolling interest |
(1,680)
|
(633)
|
(629)
|
Intercompany financing activities |
0
|
0
|
0
|
Net cash provided (used) by financing activities |
(68,370)
|
(27,759)
|
20,309
|
Effect of exchange rates on cash |
(317)
|
(7)
|
(224)
|
Net increase (decrease) in cash and cash equivalents |
(31,092)
|
63,520
|
(33,319)
|
Cash and cash equivalents at beginning of year |
78,676
|
15,156
|
48,475
|
Cash and cash equivalents at end of year |
47,584
|
78,676
|
15,156
|
Parent [Member] |
|
|
|
Condensed Financial Statements, Captions [Line Items] |
|
|
|
Net cash (used) provided by operating activities |
(18,948)
|
(4,139)
|
(31,250)
|
Additions to property, plant and equipment |
(2,687)
|
(6,721)
|
(8,656)
|
Businesses acquired, net of cash acquired |
(38,384)
|
0
|
0
|
Proceeds from disposal of plant and equipment |
|
0
|
|
Change in restricted cash and cash equivalents |
1,126
|
(14,283)
|
|
Maturities of short term investments |
9,997
|
17,820
|
4,885
|
Investment in short term investments |
(17)
|
(10,000)
|
|
Other investing activities |
(546)
|
|
|
Intercompany investing activities |
6,595
|
(6,726)
|
8,986
|
Net cash (used) provided by investing activities |
(23,916)
|
(19,910)
|
5,215
|
Repayments on revolving line of credit |
(312,000)
|
(301,000)
|
(368,000)
|
Borrowings on revolving line of credit |
312,000
|
278,000
|
391,000
|
Repayments of long-term debt |
(50,262)
|
(243)
|
(206)
|
Proceeds from issuance of common stock |
200
|
1,165
|
613
|
Excess tax benefits from stock-based awards |
2,154
|
498
|
388
|
Repurchase of common stock |
(18,497)
|
(2,332)
|
(2,731)
|
Payment of deferred financing costs |
(258)
|
(3,090)
|
|
Distribution to parent |
0
|
0
|
0
|
Distribution to noncontrolling interest |
0
|
0
|
0
|
Intercompany financing activities |
83,884
|
109,057
|
(28,896)
|
Net cash provided (used) by financing activities |
17,221
|
82,055
|
(7,832)
|
Effect of exchange rates on cash |
(697)
|
27
|
36
|
Net increase (decrease) in cash and cash equivalents |
(26,340)
|
58,033
|
(33,831)
|
Cash and cash equivalents at beginning of year |
63,471
|
5,438
|
39,269
|
Cash and cash equivalents at end of year |
37,131
|
63,471
|
5,438
|
Non-Guarantor Subsidiaries [Member] |
|
|
|
Condensed Financial Statements, Captions [Line Items] |
|
|
|
Net cash (used) provided by operating activities |
7,372
|
7,420
|
(11,632)
|
Additions to property, plant and equipment |
(405)
|
(1,027)
|
(337)
|
Businesses acquired, net of cash acquired |
0
|
0
|
0
|
Proceeds from disposal of plant and equipment |
|
0
|
|
Change in restricted cash and cash equivalents |
0
|
0
|
|
Maturities of short term investments |
0
|
0
|
0
|
Investment in short term investments |
0
|
0
|
|
Other investing activities |
0
|
|
|
Intercompany investing activities |
0
|
0
|
0
|
Net cash (used) provided by investing activities |
(405)
|
(1,027)
|
(337)
|
Repayments on revolving line of credit |
0
|
0
|
0
|
Borrowings on revolving line of credit |
0
|
0
|
0
|
Repayments of long-term debt |
0
|
0
|
0
|
Proceeds from issuance of common stock |
0
|
0
|
0
|
Excess tax benefits from stock-based awards |
0
|
0
|
0
|
Repurchase of common stock |
0
|
0
|
0
|
Payment of deferred financing costs |
0
|
0
|
|
Distribution to parent |
(6,719)
|
(2,534)
|
(2,516)
|
Distribution to noncontrolling interest |
(1,680)
|
(633)
|
(629)
|
Intercompany financing activities |
(1,574)
|
2,595
|
16,987
|
Net cash provided (used) by financing activities |
(9,973)
|
(572)
|
13,842
|
Effect of exchange rates on cash |
222
|
(18)
|
(263)
|
Net increase (decrease) in cash and cash equivalents |
(2,784)
|
5,803
|
1,610
|
Cash and cash equivalents at beginning of year |
12,806
|
7,003
|
5,393
|
Cash and cash equivalents at end of year |
10,022
|
12,806
|
7,003
|
Guarantor Subsidiaries [Member] |
|
|
|
Condensed Financial Statements, Captions [Line Items] |
|
|
|
Net cash (used) provided by operating activities |
105,744
|
125,720
|
17,116
|
Additions to property, plant and equipment |
(18,938)
|
(9,425)
|
(16,179)
|
Businesses acquired, net of cash acquired |
0
|
(20,282)
|
(4,835)
|
Proceeds from disposal of plant and equipment |
|
8,737
|
|
Change in restricted cash and cash equivalents |
0
|
0
|
|
Maturities of short term investments |
0
|
0
|
0
|
Investment in short term investments |
0
|
0
|
|
Other investing activities |
0
|
|
|
Intercompany investing activities |
(88,905)
|
(104,926)
|
2,923
|
Net cash (used) provided by investing activities |
(107,843)
|
(125,896)
|
(18,091)
|
Repayments on revolving line of credit |
0
|
0
|
0
|
Borrowings on revolving line of credit |
0
|
0
|
0
|
Repayments of long-term debt |
(27)
|
(124)
|
(126)
|
Proceeds from issuance of common stock |
0
|
0
|
0
|
Excess tax benefits from stock-based awards |
0
|
0
|
0
|
Repurchase of common stock |
0
|
0
|
0
|
Payment of deferred financing costs |
0
|
0
|
|
Distribution to parent |
0
|
0
|
0
|
Distribution to noncontrolling interest |
0
|
0
|
0
|
Intercompany financing activities |
0
|
0
|
0
|
Net cash provided (used) by financing activities |
(27)
|
(124)
|
(126)
|
Effect of exchange rates on cash |
158
|
(16)
|
3
|
Net increase (decrease) in cash and cash equivalents |
(1,968)
|
(316)
|
(1,098)
|
Cash and cash equivalents at beginning of year |
2,399
|
2,715
|
3,813
|
Cash and cash equivalents at end of year |
431
|
2,399
|
2,715
|
Eliminations [Member] |
|
|
|
Condensed Financial Statements, Captions [Line Items] |
|
|
|
Net cash (used) provided by operating activities |
(6,719)
|
(2,534)
|
(2,516)
|
Additions to property, plant and equipment |
0
|
0
|
0
|
Businesses acquired, net of cash acquired |
0
|
0
|
0
|
Proceeds from disposal of plant and equipment |
|
0
|
|
Change in restricted cash and cash equivalents |
0
|
0
|
|
Maturities of short term investments |
0
|
0
|
0
|
Investment in short term investments |
0
|
0
|
|
Other investing activities |
0
|
|
|
Intercompany investing activities |
82,310
|
111,652
|
(11,909)
|
Net cash (used) provided by investing activities |
82,310
|
111,652
|
(11,909)
|
Repayments on revolving line of credit |
0
|
0
|
0
|
Borrowings on revolving line of credit |
0
|
0
|
0
|
Repayments of long-term debt |
0
|
0
|
0
|
Proceeds from issuance of common stock |
0
|
0
|
0
|
Excess tax benefits from stock-based awards |
0
|
0
|
0
|
Repurchase of common stock |
0
|
0
|
0
|
Payment of deferred financing costs |
0
|
0
|
|
Distribution to parent |
6,719
|
2,534
|
2,516
|
Distribution to noncontrolling interest |
0
|
0
|
0
|
Intercompany financing activities |
(82,310)
|
(111,652)
|
11,909
|
Net cash provided (used) by financing activities |
(75,591)
|
(109,118)
|
14,425
|
Effect of exchange rates on cash |
0
|
0
|
0
|
Net increase (decrease) in cash and cash equivalents |
0
|
0
|
0
|
Cash and cash equivalents at beginning of year |
0
|
0
|
0
|
Cash and cash equivalents at end of year |
$ 0
|
$ 0
|
$ 0
|