CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Jan. 28, 2023	Jan. 29, 2022	Jan. 30, 2021
Cash flows from operating activities:
Net Income	$ 142,213	$ 48,574	$ 34,337
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	144,181	152,652	175,897
Non-cash lease expense	32,069	31,838	31,828
Non-cash lease expense	4,532	8,024	(28,185)
Stock-based compensation	17,927	9,866	12,771
Provision for bad debt, net	2,600	2,911	406
Gain on sale of fixed assets	(16,759)	(4,203)	(10,026)
Loss (gain) on debt extinguishment	0	62	(12,046)
Amortization of debt discount	0	1,665	7,441
Amortization of debt issuance costs and other	2,835	2,825	2,797
Goodwill impairment charge	0	0	53,264
Change in operating assets and liabilities, net of acquisitions:
Accounts receivable, net	(173,714)	(40,687)	(41,755)
Contract assets, net	(18,394)	176,982	53,664
Other current assets and inventories	(41,270)	(12,255)	27,316
Other assets	5,666	2,220	9,178
Income taxes receivable/payable	23,463	(17,177)	7,505
Accounts payable	49,396	(4,905)	43,747
Accrued liabilities, insurance claims, operating lease liabilities, and other liabilities	(9,956)	(49,737)	13,638
Net cash provided by operating activities	164,789	308,655	381,777
Cash flows from investing activities:
Capital expenditures	(200,955)	(157,042)	(58,047)
Proceeds from sale of assets	17,372	5,363	13,419
Cash paid for acquisitions, net of cash acquired	(350)	0	0
Net cash used in investing activities	(183,933)	(151,679)	(44,628)
Cash flows from financing activities:
Proceeds from 2029 Notes	0	500,000	0
Proceeds from borrowings on senior credit agreement, including term loans	0	95,000	1,056,000
Principal payments on senior credit agreement, including term loans	(17,500)	(271,875)	(973,500)
Debt issuance costs	0	(11,646)	0
Repurchase of common stock	(48,732)	(106,133)	(100,000)
Extinguishment of 2021 Convertible Notes	0	(58,264)	(401,736)
Redemption discount on convertible debt, net of costs	0	0	30,761
Settlement of convertible note hedges related to extinguished convertible debt	0	0	7,197
Purchase of warrants	0	(693)	(7,176)
Exercise of stock options	4,557	2,261	5,738
Restricted stock tax withholdings	(5,752)	(6,639)	(728)
Net cash (used in) provided by financing activities	(67,427)	142,011	(383,444)
Net (decrease) increase in cash, cash equivalents and restricted cash	(86,571)	298,987	(46,295)
Cash, cash equivalents and restricted cash at beginning of period (Note 7)	312,561	13,574	59,869
Cash, cash equivalents and restricted cash at end of period (Note 7)	225,990	312,561	13,574
Supplemental disclosure of other cash flow activities and non-cash investing and financing activities:
Cash paid for interest	37,928	22,076	20,653
Cash paid for taxes, net	6,915	8,601	45,332
Purchases of capital assets included in accounts payable or other accrued liabilities at period end	$ 8,256	$ 6,666	$ 6,556