Intangible Assets (Detail) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
Intangible Assets [Line Items]
Intangible assets with finite lives, Beginning balance	$ 105,256
Other, Gross carrying amount	(322)	[1]
Intangible assets with finite lives, Ending balance	86,910
Intangible assets with finite lives, Accumulated amortization, Beginning balance	(74,603)
Accumulated amortization	(1,204)	[2]
Other Accumulated Amortization of Intangible Assets	0	[1]
Intangible assets with finite lives, Accumulated amortization, Ending balance	(62,210)
Net intangible assets with finite lives, Beginning balance	30,653
Amortization, intangible assets	(1,204)	[2]
Other, Finite lived intangible assets	(322)	[1]
Net intangible assets with finite lives, Ending balance	24,700
Indefinite-lived Intangible Assets, Tradename and Other, Beginning Balance	300,257
Other, Tradename and Other	(5)	[1]
Indefinite-lived Intangible Assets, Tradename and Other, Ending Balance	300,252
Total intangible assets - net, Beginning balance	330,910
Other, Total intangible assets - net	(327)	[1]
Total intangible assets - net, Ending balance	324,952
ASC Topic 842
Intangible Assets [Line Items]
Impact of Adoption, Gross carrying amount	(18,024)
Impact of Adoption, Accumulated amortization	13,597	[2]
Impact of Adoption, Finite lived intangible assets	(4,427)	[2]
Impact of Adoption, Trade and other	0	[2]
Impact of Adoption, Total intangible assets - net	$ (4,427)	[2]

[1] Amount represents foreign currency translation adjustments

[2] See Note 3 for further discussion of the impact of adoption of ASC Topic 842.