Balance Sheet Details - Schedule of Other Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Other Assets [Abstract]
Deferred income taxes	$ 14,896	$ 14,879
Convertible notes receivable	1,000	0
Other	499	492
Total other assets	$ 16,395	$ 15,371

Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards classified as noncurrent.

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Balance Type:	debit
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