Accrued Expenses and Other Current Liabilities (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Other Liabilities Disclosure [Abstract]
Accrued compensation and benefits	$ 7,741	$ 8,624
Accrued warranty	3,044	3,315	2,204
Other	8,616us-gaap_OtherLiabilitiesCurrent	10,349us-gaap_OtherLiabilitiesCurrent
Total	$ 19,401	$ 22,288

Aggregate carrying amount of current liabilities (due within one year or within the normal operating cycle if longer) not separately disclosed in the balance sheet. Includes costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered and of liabilities not separately disclosed.

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Carrying value as of the balance sheet date of obligations incurred through that date and payable for estimated claims under standard and extended warranty protection rights granted to customers. For classified balance sheets, represents the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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