Intangible Assets (Tables)

9 Months Ended

Sep. 30, 2018

Intangible Assets

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

	September 30, 2018						December 31, 2017
	(in thousands)
	Gross						Gross
	Carrying		Accumulated		Net Book		Carrying		Accumulated		Net Book
	Value		Amortization		Value		Value		Amortization		Value
Indefinite-life intangible assets	$	433,005	$	—	$	433,005	$	375,405	$	—	$	375,405
Other intangible assets		135,555		95,592		39,963		131,483		84,282		47,201
Total	$	568,560	$	95,592	$	472,968	$	506,888	$	84,282	$	422,606

Schedule of expected intangible asset amortization expense

The following table presents expected intangible asset amortization expense based on existing intangible assets as of September 30, 2018 (in thousands):

Remaining 2018	$	2,902
2019		10,200
2020		7,079
2021		4,106
2022		3,635
Thereafter		12,041
Total	$	39,963