Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Accounting Policies [Abstract]

Schedule of Allowance for Doubtful Accounts

The following table displays the changes in our allowance for doubtful accounts:
	Amount
	(in thousands)
Balance at December 31, 2013	$	711
Additions		581
Less write-offs, net of recoveries		(1,016)
Balance at December 31, 2014		276
Additions		828
Less write-offs, net of recoveries		(374)
Balance at December 31, 2015		730
Additions		931
Less write-offs, net of recoveries		(600)
Balance at December 31, 2016	$	1,061