Goodwill and Intangible Assets (Tables)

3 Months Ended

Mar. 31, 2018

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Changes in Goodwill

The table below sets forth the changes in goodwill:

Balance at December 31, 2017	$	134,187
Foreign currency translation adjustment		1,807
Balance at March 31, 2018	$	135,994

Schedule of Intangible Assets Other Than Goodwill

The table below sets forth the value of intangible assets, other than goodwill:

	March 31,			December 31,
	2018			2017
Intangible assets subject to amortization:
Gross carrying amount	$	236,667		$	234,533
Accumulated amortization		(92,827	)		(88,059	)
Foreign currency translation adjustment		(8,195	)		(8,249	)
Total		135,645			138,225
Intangible assets with indefinite lives:
Gross carrying amount		17,083			19,217
Foreign currency translation adjustment		(918	)		(997	)
Total		16,165			18,220
Total intangible assets, net	$	151,810		$	156,445

Schedule of Amortization Expense Related to Intangible Assets

The table below sets forth amortization expense related to intangible assets subject to amortization:

Amortization expense	2018		2017
Three months ended March 31	$	4,767	$	4,758