Carrying Amount of Other Intangible Assets (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Acquired Finite-Lived Intangible Assets [Line Items]
Gross amount	$ 530,123	$ 520,693
Accumulated amortization	(162,343)	(117,523)
Net carrying amount	367,780	403,170
Customer relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Useful life in years	14 years	14 years
Gross amount	314,036	313,726
Accumulated amortization	(73,180)	(50,769)
Net carrying amount	240,856	262,957
Trademarks
Acquired Finite-Lived Intangible Assets [Line Items]
Gross amount	39,950	39,950
Accumulated amortization	(11,258)	(7,794)
Net carrying amount	28,692	32,156
Trademarks | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful life in years	10 years	10 years
Trademarks | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful life in years	15 years	15 years
Software packages
Acquired Finite-Lived Intangible Assets [Line Items]
Gross amount	119,598	110,478
Accumulated amortization	(65,655)	(50,479)
Net carrying amount	53,943	59,999
Software packages | Minimum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful life in years	3 years	3 years
Software packages | Maximum
Acquired Finite-Lived Intangible Assets [Line Items]
Useful life in years	10 years	10 years
Non-compete agreement
Acquired Finite-Lived Intangible Assets [Line Items]
Useful life in years	15 years	15 years
Gross amount	56,539	56,539
Accumulated amortization	(12,250)	(8,481)
Net carrying amount	$ 44,289	$ 48,058