Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Cash flows from operating activities
Net income (loss)	$ (5,316)	$ 14,837
Adjustments to reconcile net income (loss) to cash provided by operating activities:
Depreciation	9,991	9,436
Amortization	4,125	3,704
Impairment of long-lived assets	4,281	0
Non-cash restructuring charge	246	246
Amortization of deferred financing fees	231	455
Loss realized on sale of property and equipment	21	139
Stock based compensation expense	2,665	1,578
Changes in operating assets and liabilities, net of acquisitions:
Trade accounts receivable	6,639	8,962
Inventories	(1,037)	(6,214)
Prepaid expenses and other current assets	1,390	(1,692)
Trade accounts payable, accrued expenses and other liabilities	(3,170)	(16,093)
Income taxes payable	(381)	(3,079)
Net cash provided by operating activities	19,685	12,279
Cash flows from investing activities
Proceeds from sales of property and equipment	66	183
Purchases of property and equipment	(17,048)	(18,341)
Net cash used in investing activities	(16,982)	(18,158)
Cash flows from financing activities
Issuance of common stock	1,711	802
Purchase of common stock	0	(3,962)
Proceeds from issuance of long-term debt	174,440	126,835
Payments of long-term debt including current portion	(175,219)	(138,198)
Payment of deferred financing fees	(853)	(7)
Cash dividends	(6,182)	(6,157)
Net cash used in financing activities	(6,103)	(20,687)
Effect of foreign currency rate changes	(106)	297
Net decrease in cash and cash equivalents	(3,506)	(26,269)
Cash and cash equivalents at beginning of period	13,732	36,889
Cash and cash equivalents at end of period	$ 10,226	$ 10,620