Goodwill and Intangibles (Tables)

12 Months Ended

Dec. 31, 2017

Goodwill and Intangible Assets Disclosure [Abstract]

Other Intangible Assets Table

The following table presents the gross carrying amount and accumulated amortization of other intangible assets:

	December 31,
thousands	2017			2016
Gross carrying amount	$	868,035		$	868,035
Accumulated amortization	(92,766		)	(64,337		)
Other intangible assets	$	775,269		$	803,698