CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Cash Flows From Operating Activities:
Net income	$ 5,798	$ 37,637
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization	4,848	4,183
Amortization of deferred debt issuance costs	2,140	1,744
Amortization and impairment of operating lease right of use assets	3,550	3,123
Non-cash compensation	712	318
(Gain) loss on disposal of licenses, property and equipment	(4)	48
Fair value adjustment on interest rate derivatives	(2,820)	6,422
Gain on debt extinguishment		(127)
Deferred income taxes	694	573
Changes in operating assets and liabilities, net of impact of acquisitions:
Patient accounts receivable	(22,852)	(1,168)
Prepaid expenses	(1,684)	1,760
Other current and long-term assets	1,957	2,748
Accounts payable and other accrued liabilities	(15,841)	(10,187)
Accrued payroll and employee benefits	(7,595)	(1,881)
Accrued interest	78	1,826
Insurance reserves	3,466	684
Operating lease liabilities	(4,126)	(3,317)
Deferred payroll taxes		885
Other current and long-term liabilities	(1,232)	(1,218)
Net cash (used in) provided by operating activities	(32,911)	44,053
Cash Flows From Investing Activities:
Acquisitions of businesses, net of cash acquired	(500)
Purchases of property and equipment	(2,665)	(6,327)
Net cash used in investing activities	(3,165)	(6,327)
Cash Flows From Financing Activities:
Proceeds from issuance of common stock		50,000
Proceeds from revolving credit facility		14,000
Repayments on revolving credit facility		(45,500)
Principal payments on term loans and notes payable	(3,535)	(2,677)
Payment of government stimulus funds	(29,444)
Principal payments of financing lease obligations	(203)	(153)
Payment of debt issuance costs	(196)	(689)
Payment of deferred offering costs	(786)
Net cash (used in) provided by financing activities	(34,164)	14,981
Net (decrease) increase in cash and cash equivalents	(70,240)	52,707
Cash and cash equivalents at beginning of period	137,345	3,327
Cash and cash equivalents at end of period	67,105	56,034
Supplemental Disclosures of Cash Flow Information:
Cash paid for interest	20,207	17,493
Acquisition of property and equipment on accrual	2,520	$ 4,003
Deferred offering costs included in accounts payable and other accrued liabilities	1,874
Cash paid for income taxes, net of refunds received	$ (202)