CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
OPERATING ACTIVITIES
Net earnings	$ 20,550	$ 22,786
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation	7,170	6,282
Amortization of intangibles	5,752	5,752
Amortization of deferred financing costs	663	663
Stock-based compensation expense	2,541	5,174
Unrealized gain on interest rate swap		(2,662)
Earnings on equity-method investments	(8)	(73)
Loss on disposal of property, plant and equipment	9	10
Provision for bad debt expense	1,467	743
Deferred income tax benefit	113	1,027
Changes in operating assets and liabilities:
Accounts receivable	(14,863)	(19,571)
Inventories	(12,237)	(5,432)
Other current assets	(507)	(2,139)
Accounts payable	(488)	2,291
Accrued liabilities	490	3,828
Income taxes payable	(8,518)	5,019
Other, net	(257)	(637)
Net cash provided by operating activities	1,877	23,061
INVESTING ACTIVITIES
Capital expenditures	(16,534)	(6,590)
Proceeds from sale of fixed assets	6	12
Net cash used in investing activities	(16,528)	(6,578)
FINANCING ACTIVITIES
Long-term debt repayments	(925)	(925)
Principal payments on capital lease obligations		(87)
Proceeds from exercise of stock options	596
Option exercise recognized tax benefit	77
Other issuance costs		(1,535)
Net cash used in financing activities	(252)	(2,547)
Effect of exchange rate changes on cash	3,650	(3,551)
Net (decrease) increase in cash and cash equivalents	(11,253)	10,385
Cash and cash equivalents, Beginning of period	106,630	69,149
Cash and cash equivalents, End of period	$ 95,377	$ 79,534