Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2017

Intangible Assets

Schedule of gross carrying value, accumulated amortization, and net book value of each major class of other intangible assets

	June 30, 2017						December 31, 2016
	(in thousands)
	Gross						Gross
	Carrying		Accumulated		Net Book		Carrying		Accumulated		Net Book
	Value		Amortization		Value		Value		Amortization		Value
Indefinite-life intangible assets	$	375,405	$	—	$	375,405	$	375,405	$	—	$	375,405
Other intangible assets		130,852		75,925		54,927		125,584		65,495		60,089
Total	$	506,257	$	75,925	$	430,332	$	500,989	$	65,495	$	435,494

Schedule of expected intangible asset amortization expense

The following table presents expected intangible asset amortization expense based on existing intangible assets as of June 30, 2017 (in thousands):

Remaining 2017	$	8,241
2018		12,885
2019		8,418
2020		5,854
2021		3,705
Thereafter		15,824
Total	$	54,927