Summary of Significant Accounting Policies (Tables)

9 Months Ended

Sep. 30, 2018

Accounting Policies [Abstract]

Advertising Costs

Advertising costs for the three and nine months ended September 30, 2018 and 2017, are reflected in the following table (in thousands):

	Three Months Ended   September 30,				Nine Months Ended   September 30,
	2018		2017		2018		2017
Advertising costs	$	12,629	$	12,051	$	40,126	$	35,747