Property, Plant and Equipment, Net - Property, Plant and Equipment, Net (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	$ 651,240	$ 707,402
Less: accumulated depreciation	(407,668)	(386,358)
Property plant and equipment, net	243,572	321,044
Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	255,908	216,097
Buildings [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	$ 9,838	68,810
Useful lives	40 years
Data Processing Equipment [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	$ 92,256	82,735
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	117,894	137,508
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	168,296	191,183
Land [Member]
Property, Plant and Equipment [Line Items]
Property plant and equipment gross	$ 7,047	$ 11,069
Minimum [Member] | Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Useful lives	3 years
Minimum [Member] | Data Processing Equipment [Member]
Property, Plant and Equipment [Line Items]
Useful lives	3 years
Minimum [Member] | Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Useful lives	1 year
Minimum [Member] | Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Useful lives	5 years
Maximum [Member] | Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Useful lives	15 years
Maximum [Member] | Data Processing Equipment [Member]
Property, Plant and Equipment [Line Items]
Useful lives	5 years
Maximum [Member] | Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Useful lives	10 years
Maximum [Member] | Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Useful lives	10 years