Software and Other Intangible Assets - Carrying Amount and Accumulated Amortization of Other Intangible Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 347,412	$ 349,184
Accumulated Amortization	(98,452)	(87,748)
Net Balance	248,960	261,436
Customer relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	320,468	322,216
Accumulated Amortization	(77,891)	(68,616)
Net Balance	242,577	253,600
Trademarks and tradenames [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	15,735	15,767
Accumulated Amortization	(9,352)	(7,946)
Net Balance	6,383	7,821
Purchased contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	10,781	10,768
Accumulated Amortization	(10,781)	(10,768)
Covenant not to compete [Member]
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	428	433
Accumulated Amortization	$ (428)	(418)
Net Balance		$ 15

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 30

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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