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Summary of Significant Accounting Policies and Other Information - Schedule of Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Warranty	$ 12,628				$ 10,200				$ 4,429	$ 2,428	$ 1,274
Litigation reserves	12,137				10,287				3	0
Deferred revenue	2,822				1,818				3,564	4,602
Accrued compensation and benefits	2,593				3,975				3,825	5,476
Professional services	1,974				1,509				544	500
Income taxes payable	375				131				107	2,973
Other	5,833				4,587				5,374	2,203
Balance at end of year	$ 38,362	$ 41,393	$ 35,379	$ 35,234	$ 32,507	$ 22,405	$ 19,182	$ 17,929	$ 17,846	$ 18,182

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