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Fair Value Measurements (Details) - USD ($) $ in Thousands	3 Months Ended
Fair Value Measurements (Details) - USD ($) $ in Thousands	Apr. 04, 2026	Mar. 29, 2025	Jan. 03, 2026	Sep. 27, 2025	Jun. 28, 2025
Changes in level 3
Level 3 activity	$ 0	$ 0
Tranche B term loans due 2029
Financial assets and liabilities at fair value
Face amount of senior notes	$ 443,300		$ 444,400
5.25% senior notes due 2027
Financial assets and liabilities at fair value
Interest rate (as a percent)	5.25%		5.25%	5.25%	5.25%
8.00% senior secured notes due 2028
Financial assets and liabilities at fair value
Interest rate (as a percent)	8.00%		8.00%
Face amount of senior notes	$ 799,300		$ 799,300
Carrying Value \| Revolving credit loans
Financial assets and liabilities at fair value
Loans Payable, Fair Value Disclosure	270,000		215,000
Carrying Value \| Tranche B term loans due 2029
Financial assets and liabilities at fair value
Loans Payable, Fair Value Disclosure	439,806		440,726
Carrying Value \| 5.25% senior notes due 2027
Financial assets and liabilities at fair value
Loans Payable, Fair Value Disclosure	509,310		509,310
Carrying Value \| 8.00% senior secured notes due 2028
Financial assets and liabilities at fair value
Loans Payable, Fair Value Disclosure	798,591		798,526
Fair Value, Recurring [Member] \| Fair Value \| Revolving credit loans \| Level 2
Financial assets and liabilities at fair value
Loans Payable, Fair Value Disclosure	270,000		215,000
Fair Value, Recurring [Member] \| Fair Value \| Tranche B term loans due 2029
Financial assets and liabilities at fair value
Loans Payable, Fair Value Disclosure	409,020		424,199
Fair Value, Recurring [Member] \| Fair Value \| 5.25% senior notes due 2027
Financial assets and liabilities at fair value
Loans Payable, Fair Value Disclosure	494,667		495,941
Fair Value, Recurring [Member] \| Fair Value \| 8.00% senior secured notes due 2028
Financial assets and liabilities at fair value
Loans Payable, Fair Value Disclosure	$ 787,610		$ 786,548