Schedule II Valuation and Qualifying Accounts - Schedule of Allowance for Doubtful Accounts Receivable (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Allowance for Doubtful Accounts Receivable [Roll Forward]
Balance at beginning of period	$ 586	$ 20	$ 20
Charged to cost and expenses	1,342	566	0
Write-offs, net of recoveries	93	0	0
Balance at end of period	$ 2,021	$ 586	$ 20