Condensed Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Operating Activities
Net income	$ 19,495	$ 6,339
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	12,444	12,901
Debt discount amortization		5,450
Stock-based compensation	2,781	2,583
Deferred income taxes	(2,991)
Loss on disposal of property, plant and equipment	587	1,909
Other non-cash adjustments	(337)	(314)
Changes in operating assets and liabilities:
Accounts receivable	2,543	(3,597)
Inventories	6,343	20,296
Prepaid expenses and other assets	447	86
Accounts payable	(4,488)	(2,188)
Accrued expenses and other liabilities	16,775	16,559
Income taxes receivable/payable	66	352
Net cash provided by operating activities	53,665	60,376
Investing Activities
Expenditures for property, plant and equipment	(8,971)	(5,642)
Proceeds from sales of property, plant and equipment	176	3
Purchase of acquired company, net of cash acquired		(11)
Notes receivable, net	78	87
Net cash used in investing activities	(8,717)	(5,563)
Financing Activities
Financing costs	(73)	(750)
Restricted cash		37,000
Borrowings under line of credit	74,500	80,700
Principal payments under line of credit	(79,500)	(78,700)
Principal payments under mortgages and notes		(91,875)
Repurchases of common stock	(28,445)	(3,785)
Proceeds from employee stock purchase and option plans	3,427	571
Excess tax benefits from stock compensation	2,567
Net cash used in financing activities	(27,524)	(56,839)
Net increase (decrease) in cash and cash equivalents	17,424	(2,026)
Cash and cash equivalents at beginning of period	2,159	4,526
Cash and cash equivalents at end of period	19,583	2,500
Supplemental Disclosure:
Cash paid for interest, net of capitalized interest	348	5,771
Cash paid for income taxes, net	$ 696	$ 384