Summary of Significant Accounting Policies - Schedule of Allowance for Doubtful Accounts - (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Allowance for Doubtful Accounts Receivable [Roll Forward]
Allowance for doubtful accounts, beginning balance	$ 763	$ 264
Additions	2,029	1,281
Write-offs	(1,523)	(782)
Allowance for doubtful accounts, ending balance	$ 1,269	$ 763