Description of Business and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2016

Accounting Policies [Abstract]

Schedule of Activity in the Allowance for Doubtful Accounts

The activity in the allowance for for doubtful accounts is as follows (amounts in thousands):

Year Ended December 31,	Beginning Balance		Additions Charged to Costs and Expenses		Deductions / Write-Offs			Ending Balance
2014	$	1,165	$	1,337	$	(1,227	)	$	1,275
2015	$	1,275	$	2,361	$	(2,452	)	$	1,184
2016	$	1,184	$	1,831	$	(1,283	)	$	1,732