Acquisitions - Purchase Price Allocations of Intangible Assets (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2013
All 2013 Acquisitions [Member]
Business Acquisition [Line Items]
Intangible assets		$ 473,000
All 2013 Acquisitions [Member] | Trade Names And Trademarks Indefinite Lived [Member]
Business Acquisition [Line Items]
Intangible assets		46,900
Customer Relationships [Member] | All 2013 Acquisitions [Member]
Business Acquisition [Line Items]
Intangible assets		$ 357,260
Customer Relationships [Member] | All 2013 Acquisitions [Member] | Minimum [Member]
Business Acquisition [Line Items]
Useful Lives (in Years)		3 years
Customer Relationships [Member] | All 2013 Acquisitions [Member] | Maximum [Member]
Business Acquisition [Line Items]
Useful Lives (in Years)		20 years
Trade Names and Trademarks [Member]
Business Acquisition [Line Items]
Useful Lives (in Years)	14 years 7 months 6 days
Trade Names and Trademarks [Member] | All 2013 Acquisitions [Member]
Business Acquisition [Line Items]
Useful Lives (in Years)		15 years
Intangible assets		$ 200
Merchant Network [Member] | All 2013 Acquisitions [Member]
Business Acquisition [Line Items]
Useful Lives (in Years)		10 years
Intangible assets		$ 16,750
Software [Member]
Business Acquisition [Line Items]
Useful Lives (in Years)	5 years 1 month 6 days
Software [Member] | All 2013 Acquisitions [Member]
Business Acquisition [Line Items]
Intangible assets		$ 36,890
Software [Member] | All 2013 Acquisitions [Member] | Minimum [Member]
Business Acquisition [Line Items]
Useful Lives (in Years)		3 years
Software [Member] | All 2013 Acquisitions [Member] | Maximum [Member]
Business Acquisition [Line Items]
Useful Lives (in Years)		10 years
Non-compete [Member]
Business Acquisition [Line Items]
Useful Lives (in Years)	4 years 10 months 24 days
Non-compete [Member] | All 2013 Acquisitions [Member]
Business Acquisition [Line Items]
Useful Lives (in Years)		5 years
Intangible assets		$ 15,000