Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:
Net income	$ 10,586	$ 9,340
Adjustments to reconcile to net cash used in operating activities:
Depreciation	7,475	7,894
Amortization	3,669	3,932
Stock-based compensation expense	1,452	1,362
Excess tax benefit from stock-based compensation	(31)	(61)
Asset Impairment Charges	673
Deferred income taxes	(318)	105
Other non-cash items	268	222
Changes in assets and liabilities:
(Increase) decrease in accounts receivable	(31,270)	(27,940)
(Increase) decrease in inventories	2,133	154
(Increase) decrease in other assets	1,254	782
Increase (decrease) in accounts payable	10,533	3,779
Increase (decrease) in accrued expenses	(5,336)	(5,029)
Increase (decrease) in other liabilities	(1,362)	(348)
Net cash used in operating activities	(274)	(5,808)
Cash flows from investing activities:
Purchases of property, plant, and equipment	(5,537)	(6,461)
Proceeds from sale of assets	68	56
Payments to Acquire Businesses, Net of Cash Acquired	(2,741)	0
Cash Provided by (Used in) Investing Activities, Discontinued Operations	100
Net cash used in investing activities	(8,110)	(6,405)
Cash flows from financing activities:
Net repayments under revolving credit facility	7,650	(19,000)
Repayment of term loan principal	(3,752)	(3,768)
Excess tax benefit from stock-based compensation	31	61
Proceeds from stock-based compensation activity	52	27
Taxes paid under stock-based compensation activity	0	(448)
Net cash used in financing activities	3,981	(23,128)
Effect of exchange rate changes	295	(971)
Net decrease in cash and cash equivalents	(4,108)	(36,312)
Cash and cash equivalents at beginning of period	42,797	50,267
Cash and cash equivalents at end of period	$ 38,689	$ 13,955