CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities
Net income	$ 45,740	$ 53,174
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation	10,957	10,330
Amortization of intangibles	10,238	9,881
Net loss (gain) on sale of property, plant and equipment	481	(9,743)
Loss on debt extinguishment	53	174
Deferred income taxes	(2,214)	(81)
Stock-based compensation	5,377	5,390
Non-cash interest expense	523	1,110
Accounts receivable	10,886	(46,564)
Inventories	(80,163)	(56,057)
Prepaid expenses and other	(325)	1,756
Accounts payable and accrued liabilities	58,210	72,792
Other, net	1,210	(1,691)
Net cash provided by operating activities	60,973	40,471
Cash flows from investing activities
Capital expenditures	(14,995)	(11,117)
Proceeds from the sale of property, plant, and equipment	38	16,426
Other, net	0	3,060
Net cash (used in) provided by investing activities	(14,957)	8,369
Cash flows from financing activities
Proceeds from exercise of stock options	55	910
Dividends paid	(9,061)	(9,271)
Borrowings under revolving credit facilities	288	423
Payments under revolving credit facilities	(288)	(423)
Principal payments under capital lease obligations	(152)	(143)
Principal payments under term loan credit facility	(15,470)	(940)
Principal payments under industrial revenue bond	0	(92)
Debt issuance costs paid	(71)	0
Convertible senior notes repurchase	0	(80,200)
Stock repurchase	(13,852)	(21,413)
Net cash used in financing activities	(38,551)	(111,149)
Net increase (decrease) in cash, cash equivalents, and restricted cash	7,465	(62,309)
Cash, cash equivalents and restricted cash at beginning of period	132,690	191,521
Cash, cash equivalents, and restricted cash at end of period	140,155	129,212
Supplemental disclosures of cash flow information:
Cash paid for interest	13,661	14,071
Cash paid for income taxes	$ 10,567	$ 12,700