Property and Equipment, Net of Accumulated Depreciation and Amortization, by Geographic Areas (Detail) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013		Dec. 31, 2012
Segment Reporting Information [Line Items]
Property and equipment, net of accumulated depreciation and amortization	$ 248,778		$ 260,389
United States
Segment Reporting Information [Line Items]
Property and equipment, net of accumulated depreciation and amortization	189,700		191,700
Europe
Segment Reporting Information [Line Items]
Property and equipment, net of accumulated depreciation and amortization	45,300	[1]	51,300	[1]
Japan
Segment Reporting Information [Line Items]
Property and equipment, net of accumulated depreciation and amortization	6,900	[1]	9,500	[1]
Other
Segment Reporting Information [Line Items]
Property and equipment, net of accumulated depreciation and amortization	$ 6,900	[1]	$ 7,900	[1]

[1] Total assets are impacted by movements in foreign currency exchange rates.