CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Cash flows from operating activities
Net income	$ 27,524	$ 10,474
Adjustments to reconcile net income to net cash provided by (used in) operating activities
Depreciation	4,176	4,138
Amortization of intangibles	4,988	5,314
Deferred income taxes	7,595	1,642
Excess tax benefits from stock-based compensation	(1,090)	0
Loss on debt extinguishment	487	5,286
Stock-based compensation	2,470	2,420
Non-cash interest expense	948	1,185
Changes in operating assets and liabilities
Accounts receivable	(6,619)	(21,686)
Inventories	(41,227)	(65,843)
Prepaid expenses and other	(3,763)	3,216
Accounts payable and accrued liabilities	46,316	57,625
Other, net	1,099	458
Net cash provided by (used in) operating activities	42,904	4,229
Cash flows from investing activities
Capital expenditures	(2,976)	(2,975)
Net cash provided by (used in) by investing activities	(2,976)	(2,975)
Cash flows from financing activities
Proceeds from exercise of stock options	192	719
Excess tax benefits from stock-based compensation	1,090	0
Borrowings under revolving credit facilities	175	163
Payments under revolving credit facilities	(175)	(163)
Principal payments under capital lease obligations	(225)	(432)
Proceeds from issuance of term loan credit facility	0	192,845
Principal payments under term loan credit facility	(482)	(192,845)
Principal payments under industrial revenue bond	(127)	(122)
Debt issuance costs paid	0	(1,994)
Stock repurchase	(8,757)	(19,929)
Convertible senior notes repurchase	(42,061)	0
Net cash provided by (used in) financing activities	(50,370)	(21,758)
Net increase (decrease) in cash and cash equivalents	(10,442)	(20,504)
Cash and cash equivalents at beginning of period	178,853	146,113
Cash and cash equivalents at end of period	$ 168,411	$ 125,609