Changes in Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Definite-lived intangible assets
Net Carrying Amount, January 1, 2014			$ 199,500
Acquisition			299,900
Amortization	(11,798)	(8,051)	(28,415)	(24,564)
Net Carrying Amount, September 30, 2014	464,702		464,702
Indefinite-lived intangible assets
Net Carrying Amount, January 1, 2014			206,744
Impact of foreign currency translation			(1,198)
Disposals			(5,171)
Net Carrying Amount, September 30, 2014	471,860		471,860
Trademarks and trade names
Indefinite-lived intangible assets
Net Carrying Amount, January 1, 2014			7,244
Impact of foreign currency translation			(86)
Net Carrying Amount, September 30, 2014	7,158		7,158
Acquired software
Definite-lived intangible assets
Net Carrying Amount, January 1, 2014			61,590
Acquisition			70,000
Amortization			(6,982)
Disposals			0
Impact of foreign currency translation			(505)
Net Carrying Amount, September 30, 2014	124,103		124,103
Customer relationships
Definite-lived intangible assets
Net Carrying Amount, January 1, 2014			127,403
Acquisition			211,000
Amortization			(20,296)
Disposals			(3,727)
Impact of foreign currency translation			(490)
Net Carrying Amount, September 30, 2014	313,890		313,890
Patent
Definite-lived intangible assets
Net Carrying Amount, January 1, 2014			1,672
Acquisition			0
Amortization			(253)
Disposals			0
Impact of foreign currency translation			(9)
Net Carrying Amount, September 30, 2014	1,410		1,410
Trade names
Definite-lived intangible assets
Net Carrying Amount, January 1, 2014			8,835
Acquisition			18,900
Amortization			(884)
Disposals			(1,444)
Impact of foreign currency translation			(108)
Net Carrying Amount, September 30, 2014	$ 25,299		$ 25,299