Quarterly report pursuant to Section 13 or 15(d)

Consolidating Condensed Financial Information of Guarantor Subsidiaries - Consolidating Condensed Statement of Cash Flows (Details)

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Consolidating Condensed Financial Information of Guarantor Subsidiaries - Consolidating Condensed Statement of Cash Flows (Details) - USD ($)
$ in Thousands
3 Months Ended
Dec. 28, 2019
Dec. 29, 2018
Condensed Financial Statements, Captions [Line Items]    
Net cash used by operating activities $ (18,022) $ 6,800
Additions to property, plant and equipment (9,877) (7,838)
Investments (424) (1,499)
Other investing activities (75) (50)
Intercompany investing activities 0 0
Net cash used in investing activities (10,376) (9,387)
Repayments of long-term debt (31) (34)
Payment of financing costs (869) 0
Repurchase of common stock (23,054) (547)
Payment of contingent consideration liability (77) (54)
Intercompany financing activities 0 0
Net cash used by financing activities (24,031) (635)
Effect of exchange rate changes on cash and cash equivalents 531 (125)
Net increase (decrease) in cash, cash equivalents and restricted cash (51,898) (3,347)
Cash, cash equivalents and restricted cash at beginning of period 510,701 493,005
Cash, cash equivalents and restricted cash at end of period 458,803 489,658
Eliminations    
Condensed Financial Statements, Captions [Line Items]    
Net cash used by operating activities 0 0
Additions to property, plant and equipment 0 0
Investments 0 0
Other investing activities 0 0
Intercompany investing activities (13,988) 65,887
Net cash used in investing activities (13,988) 65,887
Repayments of long-term debt 0 0
Payment of financing costs  
Repurchase of common stock 0 0
Payment of contingent consideration liability 0 0
Intercompany financing activities 13,988 (65,887)
Net cash used by financing activities 13,988 (65,887)
Effect of exchange rate changes on cash and cash equivalents 0 0
Net increase (decrease) in cash, cash equivalents and restricted cash 0 0
Cash, cash equivalents and restricted cash at beginning of period 0 0
Cash, cash equivalents and restricted cash at end of period 0 0
Parent | Reportable Legal Entities    
Condensed Financial Statements, Captions [Line Items]    
Net cash used by operating activities (8,297) (3,592)
Additions to property, plant and equipment (1,817) (873)
Investments (424) (1,499)
Other investing activities (75) (50)
Intercompany investing activities (3,270) (60,604)
Net cash used in investing activities (5,586) (63,026)
Repayments of long-term debt (31) (28)
Payment of financing costs (869)  
Repurchase of common stock (23,054) (547)
Payment of contingent consideration liability 0 0
Intercompany financing activities (16,962) 63,233
Net cash used by financing activities (40,916) 62,658
Effect of exchange rate changes on cash and cash equivalents 416 (179)
Net increase (decrease) in cash, cash equivalents and restricted cash (54,383) (4,139)
Cash, cash equivalents and restricted cash at beginning of period 502,542 485,109
Cash, cash equivalents and restricted cash at end of period 448,159 480,970
Non- Guarantor Subsidiaries | Reportable Legal Entities    
Condensed Financial Statements, Captions [Line Items]    
Net cash used by operating activities (1,238) (1,459)
Additions to property, plant and equipment 188 (704)
Investments 0 0
Other investing activities 0 0
Intercompany investing activities 0 0
Net cash used in investing activities 188 (704)
Repayments of long-term debt 0 0
Payment of financing costs  
Repurchase of common stock 0 0
Payment of contingent consideration liability 0 0
Intercompany financing activities 2,974 2,654
Net cash used by financing activities 2,974 2,654
Effect of exchange rate changes on cash and cash equivalents 235 4
Net increase (decrease) in cash, cash equivalents and restricted cash 2,159 495
Cash, cash equivalents and restricted cash at beginning of period 7,308 6,005
Cash, cash equivalents and restricted cash at end of period 9,467 6,500
Guarantor Subsidiaries | Reportable Legal Entities    
Condensed Financial Statements, Captions [Line Items]    
Net cash used by operating activities (8,487) 11,851
Additions to property, plant and equipment (8,248) (6,261)
Investments 0 0
Other investing activities 0 0
Intercompany investing activities 17,258 (5,283)
Net cash used in investing activities 9,010 (11,544)
Repayments of long-term debt 0 (6)
Payment of financing costs  
Repurchase of common stock 0 0
Payment of contingent consideration liability (77) (54)
Intercompany financing activities 0 0
Net cash used by financing activities (77) (60)
Effect of exchange rate changes on cash and cash equivalents (120) 50
Net increase (decrease) in cash, cash equivalents and restricted cash 326 297
Cash, cash equivalents and restricted cash at beginning of period 851 1,891
Cash, cash equivalents and restricted cash at end of period $ 1,177 $ 2,188