Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2016

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The following table summarizes the changes in goodwill:

	2016		2015
	(in thousands)
Goodwill	$	530,593	$	530,593
Non-amortizing intangible assets	963		963
Balance at end of year	$	531,556	$	531,556