CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
CASH FLOWS FROM OPERATING ACTIVITES
Net income	$ 7,257	$ 9,202
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation	3,593	4,058
Amortization of intangible assets and deferred financing fees	360	481
Loss on disposal of fixed assets	(35)	6
Write off of deferred financing fees	477
Unrealized foreign currency loss	1,358	1,415
Stock based compensation	2,632	2,161
Other non-cash items	1	7
Changes in assets and liabilities:
Customer receivables	12,075	(11,410)
Inventories	(7,287)	(6,840)
Accounts payable	(7,668)	(5,992)
Current and deferred income taxes	(11,146)	552
Other current assets	689	1,686
Other current liabilities	(14,529)	(15,323)
Other noncurrent assets and liabilities	(1,297)	3,149
Cash used in operating activities	(13,520)	(16,848)
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(3,024)	(1,970)
Purchase of a business, net of cash acquired	(5,968)
Purchase of intangibles	(175)
Cash used in investing activities	(9,167)	(1,970)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from revolving credit facilities	342,000	83,000
Repayment of revolving credit facilities	(326,000)	(86,000)
Deferred financing fees	(2,806)
Payment of dividends	(4,661)	(2,772)
Proceeds from the issuance of common stock	400	11,703
Purchase of common stock for treasury	(2,490)	(12,406)
Tax benefit from the exercise of stock options and vesting of equity awards	(705)	1,274
Cash provided by (used in) financing activities	5,738	(5,201)
Effect of exchange rate changes on cash and cash equivalents	434	1,674
Decrease in cash and cash equivalents	(16,515)	(22,345)
Cash and cash equivalents at beginning of period	28,263	26,935
Cash and cash equivalents at end of period	$ 11,748	$ 4,590