Commitments and Contingencies - Additional Information (Details) - USD ($)				6 Months Ended
	Oct. 01, 2021	Sep. 30, 2021	Aug. 06, 2020	Jul. 02, 2022	Jan. 01, 2022	Dec. 20, 2019	Dec. 24, 2018
Loss Contingencies [Line Items]
Insurance, per claims deductible	$ 1,000,000.0	$ 500,000
Professional malpractice claims, per claim and annual aggregate limits	$ 5,500,000	$ 6,000,000.0
Insurance reserves				$ 83,400,000	$ 80,500,000
Provision for transaction termination fee							$ 75,000,000.0
Break-up fee due to Seller						$ 0
Escrow funds			$ 7,100,000
Name of defendants				Epic/Freedom, LLC (“Seller”), Webster Capital Corporation, and Webster Equity Partners (collectively, the “Defendants”)
Minimum
Loss Contingencies [Line Items]
Damages sought value			24,000,000.0
Maximum
Loss Contingencies [Line Items]
Damages sought value			$ 50,000,000.0
Professional Malpractice Claims
Loss Contingencies [Line Items]
Insurance reserves				$ 37,300,000	38,700,000
Surety Bonds
Loss Contingencies [Line Items]
Collaterals				2,900,000	2,900,000
Cash Collateral
Loss Contingencies [Line Items]
Collaterals				2,900,000	2,900,000
Letters of Credit
Loss Contingencies [Line Items]
Collaterals				17,600,000	17,600,000
Workers Compensation Insurance
Loss Contingencies [Line Items]
Insurance, per claims deductible				500,000
Insurance reserves				$ 46,100,000	$ 41,800,000