UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (19,910)	$ (3,712)
Adjustments to reconcile net loss to net cash provided by operations:
Depreciation and amortization expense	21,844	10,749
Non-cash operating lease costs	4,764	4,231
Deferred income taxes - net	300	(2,082)
Amortization of deferred financing costs	1,396	799
Equity in earnings of joint ventures	(562)	(549)
Stock-based incentive compensation expense	757	584
Other adjustments	(882)	(535)
Changes in operating assets and liabilities:
Accounts receivable, net	(12,781)	266
Inventories	(23,252)	(6,690)
Prepaid expenses and other current assets	3,603	7,263
Accounts payable	42,302	(3,395)
Accrued compensation and employee benefits	6,651	(1,139)
Accrued expenses and other current liabilities	(1,650)	7,217
Operating lease liabilities	(4,740)	(3,765)
Other noncurrent assets and liabilities	563	(162)
Net cash provided by operating activities	18,403	9,080
CASH FLOWS FROM INVESTING ACTIVITIES:
Acquisition of property and equipment	(5,353)	(5,367)
Other investing cash flows	0	636
Net cash used in investing activities	(5,353)	(4,731)
CASH FLOWS FROM FINANCING ACTIVITIES:
Redemptions to related parties	0	(2,000)
Exercise of stock options, vesting of restricted stock, and related tax withholdings	(549)	0
Repayments of debt principal	(2,313)	(1,038)
Net cash used in financing activities	(2,862)	(3,038)
NET INCREASE IN CASH AND CASH EQUIVALENTS	10,188	1,311
Cash and cash equivalents - beginning of the period	67,056	36,391
CASH AND CASH EQUIVALENTS - END OF PERIOD	77,244	37,702
Supplemental disclosure of cash flow information:
Cash paid for interest	25,936	6,321
Cash paid for income taxes	307	180
Cash paid for operating leases	$ 6,798	$ 4,671