Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies - Schedule of Changes in Aggregate Product Warranty Liabilities (Details)

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Commitments and Contingencies - Schedule of Changes in Aggregate Product Warranty Liabilities (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Commitments And Contingencies Disclosure [Abstract]    
Product warranty liability at beginning of period $ 1,973 $ 1,115
Accruals for warranties issued 525 1,871
Adjustments related to preexisting warranties (including changes in estimates) 300 510
Settlements made (in cash or in kind) (369) (1,523)
Product warranty liability at end of period $ 2,429 $ 1,973