Other Accrued Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013		Dec. 31, 2012		Sep. 30, 2012	Dec. 31, 2011
Other Accrued Liabilities [Abstract]
Accrued warranty, current	$ 1,071		$ 1,274		$ 1,229
Accrued taxes, net	914		4,304	[1]
Accrued sales return	8,433	[2]	11,901	[2]	11,789	6,143
Other accrued liabilities	2,795		4,620
Total other accrued liabilities	$ 13,213		$ 22,099	[3]

[1] The December 31, 2012 balance is shown as Restated.

[2] The activity in the sales returns liability account was as follows: Nine Months Ended September 30, 2013 2012 (unaudited) (unaudited) Balance at beginning of year $ 11,901 $ 6,143 Additions that reduce net sales 29,246 22,224 Deductions from reserves (32,714 ) (16,578 ) Balance at end of period $ 8,433 $ 11,789

[3] Restated