CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 71,863	$ 19,479
Accounts receivable, net of allowances for doubtful accounts of $659 and $776, respectively	157,418	157,646
Inventories	34,288	47,455
Prepaid expenses and other current assets	8,078	8,321
Deferred income taxes	983	1,678
Total current assets	272,630	234,579
Long-term investments	2,681	2,681
Deferred income taxes	1,311	989
Property and equipment, net	17,881	15,059
Capitalized product costs, net	12,511	13,184
Goodwill	19,549	19,549
Other intangible assets, net	3,350	5,653
Other assets	1,119	1,786
Total assets	331,032	293,480
Current liabilities:
Accounts payable	34,629	31,390
Accrued liabilities	50,380	41,425
Income taxes payable	377	167
Total current liabilities	85,386	72,982
Long-term deferred income taxes	3,542	3,199
Other long-term liabilities	9,360	11,734
Stockholders' equity:
Treasury stock	(185)	(185)
Additional paid-in capital	395,627	387,833
Accumulated other comprehensive income (loss)	(225)	292
Accumulated deficit	(162,480)	(182,382)
Total stockholders' equity	232,744	205,565
Total liabilities and stockholders' equity	331,032	293,480
Class A common stock
Stockholders' equity:
Common Stock	6	5
Class B common stock
Stockholders' equity:
Common Stock	$ 1	$ 2