Consolidating Condensed Financial Information of Guarantor Subsidiaries - Consolidating Condensed Statement of Cash Flows (Detail) - USD ($) $ in Thousands |
12 Months Ended |
Sep. 29, 2018 |
Sep. 30, 2017 |
Sep. 24, 2016 |
Condensed Financial Statements, Captions [Line Items] |
|
|
|
Net cash provided (used) by operating activities |
$ 114,112
|
$ 114,309
|
$ 151,426
|
Additions to property, plant and equipment |
(37,845)
|
(44,659)
|
(27,622)
|
Businesses acquired, net of cash acquired, and investments in joint ventures |
(91,244)
|
(103,880)
|
(69,001)
|
Proceeds from asset sales |
0
|
8,547
|
3,911
|
Escrow deposit for acquisition-related contingent consideration |
0
|
(6,000)
|
0
|
Change in restricted cash and cash equivalents. |
1,746
|
(1,735)
|
2,247
|
Payments for investments |
(9,048)
|
(12,495)
|
0
|
Other investing activities |
(2,745)
|
(4,355)
|
(730)
|
Intercompany investing activities |
0
|
0
|
0
|
Net cash used in investing activities |
(139,136)
|
(164,577)
|
(91,195)
|
Repayments on revolving line of credit |
(23,000)
|
(552,000)
|
(419,000)
|
Borrowings on revolving line of credit |
23,000
|
552,000
|
419,000
|
Repayments of long-term debt |
(431)
|
(463)
|
(400,307)
|
Issuance of long-term debt |
300,000
|
0
|
400,000
|
Proceeds from issuance of common stock, net of offering costs |
195,631
|
0
|
324
|
Excess tax benefits from stock-based awards |
0
|
19,946
|
6,869
|
Repurchase of common stock |
(13,797)
|
(27,556)
|
(10,873)
|
Payments of contingent consideration |
(253)
|
(1,300)
|
(2,026)
|
Payment of deferred financing costs |
(4,770)
|
0
|
(7,560)
|
Distribution to parent |
0
|
0
|
0
|
Distribution to noncontrolling interest |
(1,597)
|
(1,019)
|
(592)
|
Intercompany financing activities |
0
|
0
|
0
|
Net cash provided (used) by financing activities |
474,783
|
(10,392)
|
(14,165)
|
Effect of exchange rates on cash |
(50)
|
75
|
(668)
|
Net increase (decrease) in cash and cash equivalents |
449,709
|
(60,585)
|
45,398
|
Cash and cash equivalents at beginning of year |
32,397
|
92,982
|
47,584
|
Cash and cash equivalents at end of year |
482,106
|
32,397
|
92,982
|
Eliminations |
|
|
|
Condensed Financial Statements, Captions [Line Items] |
|
|
|
Net cash provided (used) by operating activities |
(6,387)
|
(4,076)
|
(4,883)
|
Additions to property, plant and equipment |
0
|
0
|
0
|
Businesses acquired, net of cash acquired, and investments in joint ventures |
0
|
0
|
0
|
Proceeds from asset sales |
|
0
|
|
Escrow deposit for acquisition-related contingent consideration |
|
0
|
|
Change in restricted cash and cash equivalents. |
0
|
0
|
0
|
Payments for investments |
|
0
|
|
Other investing activities |
0
|
0
|
0
|
Intercompany investing activities |
111,509
|
98,591
|
129,791
|
Net cash used in investing activities |
111,509
|
98,591
|
129,791
|
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
|
Issuance of long-term debt |
0
|
|
|
Proceeds from issuance of common stock, net of offering costs |
0
|
|
0
|
Excess tax benefits from stock-based awards |
|
0
|
0
|
Repurchase of common stock |
0
|
0
|
0
|
Payments of contingent consideration |
0
|
|
|
Payment of deferred financing costs |
0
|
|
0
|
Distribution to parent |
6,387
|
4,076
|
4,883
|
Distribution to noncontrolling interest |
0
|
0
|
0
|
Intercompany financing activities |
(111,509)
|
(98,591)
|
(129,791)
|
Net cash provided (used) by financing activities |
(105,122)
|
(94,515)
|
(124,908)
|
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
|
Parent | Reportable Legal Entities |
|
|
|
Condensed Financial Statements, Captions [Line Items] |
|
|
|
Net cash provided (used) by operating activities |
(16,676)
|
(7,418)
|
3,906
|
Additions to property, plant and equipment |
(6,633)
|
(9,419)
|
(4,513)
|
Businesses acquired, net of cash acquired, and investments in joint ventures |
(91,244)
|
(103,880)
|
(69,001)
|
Proceeds from asset sales |
|
229
|
0
|
Escrow deposit for acquisition-related contingent consideration |
|
(6,000)
|
|
Change in restricted cash and cash equivalents. |
1,746
|
(1,735)
|
2,247
|
Payments for investments |
(9,048)
|
(12,495)
|
|
Other investing activities |
(2,745)
|
(4,355)
|
(730)
|
Intercompany investing activities |
(3,760)
|
(3,828)
|
(83)
|
Net cash used in investing activities |
(111,684)
|
(141,483)
|
(72,080)
|
Repayments on revolving line of credit |
(23,000)
|
(552,000)
|
(419,000)
|
Borrowings on revolving line of credit |
23,000
|
552,000
|
419,000
|
Repayments of long-term debt |
(56)
|
(89)
|
(400,286)
|
Issuance of long-term debt |
300,000
|
|
400,000
|
Proceeds from issuance of common stock, net of offering costs |
195,631
|
|
324
|
Excess tax benefits from stock-based awards |
|
19,946
|
6,869
|
Repurchase of common stock |
(13,797)
|
(27,556)
|
(10,873)
|
Payments of contingent consideration |
0
|
0
|
0
|
Payment of deferred financing costs |
(4,770)
|
|
(7,560)
|
Distribution to parent |
0
|
0
|
0
|
Distribution to noncontrolling interest |
0
|
0
|
0
|
Intercompany financing activities |
106,525
|
93,445
|
127,044
|
Net cash provided (used) by financing activities |
583,533
|
85,746
|
115,518
|
Effect of exchange rates on cash |
(201)
|
235
|
(1,466)
|
Net increase (decrease) in cash and cash equivalents |
454,972
|
(62,920)
|
45,878
|
Cash and cash equivalents at beginning of year |
19,238
|
82,158
|
36,280
|
Cash and cash equivalents at end of year |
474,210
|
19,238
|
82,158
|
Non-Guarantor Subsidiaries | Reportable Legal Entities |
|
|
|
Condensed Financial Statements, Captions [Line Items] |
|
|
|
Net cash provided (used) by operating activities |
(1,288)
|
2,846
|
2,654
|
Additions to property, plant and equipment |
(1,495)
|
(805)
|
(717)
|
Businesses acquired, net of cash acquired, and investments in joint ventures |
0
|
0
|
0
|
Proceeds from asset sales |
|
0
|
|
Escrow deposit for acquisition-related contingent consideration |
|
0
|
|
Change in restricted cash and cash equivalents. |
0
|
0
|
0
|
Payments for investments |
|
0
|
|
Other investing activities |
0
|
0
|
0
|
Intercompany investing activities |
0
|
0
|
0
|
Net cash used in investing activities |
(1,495)
|
(805)
|
(717)
|
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
|
Issuance of long-term debt |
0
|
|
|
Proceeds from issuance of common stock, net of offering costs |
0
|
|
0
|
Excess tax benefits from stock-based awards |
|
0
|
0
|
Repurchase of common stock |
0
|
0
|
0
|
Payments of contingent consideration |
0
|
|
|
Payment of deferred financing costs |
0
|
|
0
|
Distribution to parent |
(6,387)
|
(4,076)
|
(4,883)
|
Distribution to noncontrolling interest |
(1,597)
|
(1,019)
|
(592)
|
Intercompany financing activities |
4,984
|
5,146
|
2,747
|
Net cash provided (used) by financing activities |
(3,000)
|
51
|
(2,728)
|
Effect of exchange rates on cash |
95
|
(94)
|
464
|
Net increase (decrease) in cash and cash equivalents |
(5,688)
|
1,998
|
(327)
|
Cash and cash equivalents at beginning of year |
11,693
|
9,695
|
10,022
|
Cash and cash equivalents at end of year |
6,005
|
11,693
|
9,695
|
Guarantor Subsidiaries | Reportable Legal Entities |
|
|
|
Condensed Financial Statements, Captions [Line Items] |
|
|
|
Net cash provided (used) by operating activities |
138,463
|
122,957
|
149,749
|
Additions to property, plant and equipment |
(29,717)
|
(34,435)
|
(22,392)
|
Businesses acquired, net of cash acquired, and investments in joint ventures |
0
|
0
|
0
|
Proceeds from asset sales |
|
8,318
|
3,911
|
Escrow deposit for acquisition-related contingent consideration |
|
0
|
|
Change in restricted cash and cash equivalents. |
0
|
0
|
0
|
Payments for investments |
|
0
|
|
Other investing activities |
0
|
0
|
0
|
Intercompany investing activities |
(107,749)
|
(94,763)
|
(129,708)
|
Net cash used in investing activities |
(137,466)
|
(120,880)
|
(148,189)
|
Repayments on revolving line of credit |
0
|
0
|
0
|
Borrowings on revolving line of credit |
0
|
0
|
0
|
Repayments of long-term debt |
(375)
|
(374)
|
(21)
|
Issuance of long-term debt |
0
|
|
|
Proceeds from issuance of common stock, net of offering costs |
0
|
|
0
|
Excess tax benefits from stock-based awards |
|
0
|
0
|
Repurchase of common stock |
0
|
0
|
0
|
Payments of contingent consideration |
(253)
|
(1,300)
|
(2,026)
|
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 |
(628)
|
(1,674)
|
(2,047)
|
Effect of exchange rates on cash |
56
|
(66)
|
334
|
Net increase (decrease) in cash and cash equivalents |
425
|
337
|
(153)
|
Cash and cash equivalents at beginning of year |
1,466
|
1,129
|
1,282
|
Cash and cash equivalents at end of year |
$ 1,891
|
$ 1,466
|
$ 1,129
|