Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011
Cash flows from operating activities:
Net income from continuing operations	$ 5,100	$ 29,215
Adjustments to reconcile income from continuing operations to net cash provided by (used in) operating activities:
Depreciation and amortization	9,043	8,638
Benefit from deferred income taxes	(548)	(209)
Provision for returns and doubtful accounts	2,060	1,640
Compensation expense related to equity compensation plans	2,150	1,053
Return of common stock	0	(7,890)
Excess tax benefit from exercises of stock options	(543)	(187)
Loss on dispositions and abandonment	15	71
Changes in operating assets and liabilities:
Accounts receivable	(12,536)	19,982
Inventories	17,234	15,324
Prepaid expenses and other current assets	(5,167)	1,436
Accounts payable, accrued expenses and other current liabilities	39,310	(56,883)
Net cash provided by operating activities from continuing operations	56,118	12,190
Net cash used in operating activities from discontinued operations	(336)	(39)
Net cash provided by operating activities	55,782	12,151
Cash flows from investing activities:
Purchases of property, plant and equipment	(6,929)	(6,664)
Proceeds from disposals of property, plant and equipment	84	11
Net cash used in investing activities	(6,845)	(6,653)
Cash flows from financing activities:
Borrowings on credit facility and short term debt	0	13,516
Repayments of borrowings on credit facility and short term debt	0	(10,861)
Repayments of capital lease obligations	(1,330)	(1,208)
Proceeds from issuance of common stock	320	188
Proceeds from recovery zone bond	0	624
Excess tax benefit from exercises of stock options	543	187
Net cash (used in) provided by financing activities from continuing operations	(467)	2,446
Net cash used in financing activities from discontinued operations	0	(129)
Net cash (used in) provided by financing activities	(467)	2,317
Effects of exchange rates on cash	57	(100)
Net increase in cash	48,527	7,715
Cash - beginning of period	97,254	92,077
Cash - end of period	145,781	99,792
Supplemental disclosures of non-cash investing and financing activities:
Acquisitions of equipment through capital leases	$ 1,174	$ 628