Estimated Fair Value and Weighted Average Useful Lives of Identifiable Intangible Assets Acquired (Detail) (Central Payment Company Llc, USD $) In Thousands, unless otherwise specified	1 Months Ended
	Aug. 08, 2012
Acquired Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]
Acquired intangible assets	$ 32,600
Weighted Average Useful lives, acquired intangible assets	6 years 6 months
Customer relationships
Acquired Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]
Acquired intangible assets	28,000
Weighted Average Useful lives, acquired intangible assets	7 years
Covenants-not-to-compete
Acquired Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]
Acquired intangible assets	2,200
Weighted Average Useful lives, acquired intangible assets	3 years
Current Technology
Acquired Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]
Acquired intangible assets	1,600
Weighted Average Useful lives, acquired intangible assets	5 years
Trade Name
Acquired Finite And Indefinite Lived Intangible Assets By Major Class [Line Items]
Acquired intangible assets	$ 800
Weighted Average Useful lives, acquired intangible assets	2 years