CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	May 01, 2021	Apr. 25, 2020
Cash flows from operating activities:
Net income	$ 898	$ (32,418)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	39,079	45,871
Non-cash lease expense	7,866	7,921
Deferred income tax provision (benefit)	3,799	(8,710)
Stock-based compensation	3,740	2,322
Amortization of debt discount	663	4,341
Provision for bad debt, net	2,823	118
Gain on sale of fixed assets	(2,852)	(1,788)
Loss (gain) on debt extinguishment	62	(12,504)
Amortization of debt issuance costs and other	636	951
Goodwill impairment charge	0	53,264
Change in operating assets and liabilities, net of acquisitions:
Accounts receivable, net	(12,246)	(54,134)
Contract assets, net	24,629	(13,763)
Other current assets and inventories	(19,067)	(11,337)
Other assets	2,222	2,019
Income taxes receivable/payable	(7,306)	11,518
Accounts payable	7,699	80,319
Accrued liabilities, insurance claims, operating lease liabilities, and other liabilities	(11,134)	11,171
Net cash provided by operating activities	41,511	85,161
Cash flows from investing activities:
Capital expenditures	(31,629)	(20,701)
Proceeds from sale of assets	3,044	2,400
Net cash used in investing activities	(28,585)	(18,301)
Cash flows from financing activities:
Proceeds from Issuance of Senior Long-term Debt	500,000	0
Proceeds from borrowings on senior credit agreement, including term loans	95,000	675,000
Principal payments on senior credit agreement, including term loans	(271,875)	(5,625)
Debt issuance costs	(11,211)	0
Repayments of Senior Debt	0	(167,003)
Redemption discount on convertible debt, net of costs	0	20,040
Settlement of convertible note hedges related to extinguished convertible debt	0	341
Purchase of warrants	0	(397)
Exercise of stock options	366	242
Restricted stock tax withholdings	(6,361)	(326)
Net cash provided by financing activities	305,919	522,272
Net increase in cash, cash equivalents and restricted cash	318,845	589,132
Cash, cash equivalents and restricted cash at beginning of period	13,574	59,869
Cash, cash equivalents and restricted cash at end of period	332,419	649,001
Supplemental disclosure of other cash flow activities and non-cash investing and financing activities:
Cash paid for interest	2,592	8,510
Cash paid for taxes, net	430	52
Purchases of capital assets included in accounts payable or other accrued liabilities at period end	9,149	2,933
Debt financing costs included in other accrued liabilities at period end	$ 427	$ 0