Goodwill and Other Intangible Assets - Summary of Other Intangible Assets and Related Accumulated Amortization (Detail) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Finite-Lived Intangible Assets [Line Items]
Acquisition intangibles, gross	$ 368,796	$ 97,759
Accumulated amortization	(73,418)	(63,037)
Total intangibles, net	295,378	34,722
Customer related intangibles [Member]
Finite-Lived Intangible Assets [Line Items]
Acquisition intangibles, gross	181,671	61,325
Accumulated amortization	(38,754)	(33,194)
Acquired software [Member]
Finite-Lived Intangible Assets [Line Items]
Acquisition intangibles, gross	172,666	33,103
Accumulated amortization	(32,880)	(28,441)
Trade name [Member]
Finite-Lived Intangible Assets [Line Items]
Acquisition intangibles, gross	10,765	3,331
Accumulated amortization	(1,747)	$ (1,402)
Leases acquired [Member]
Finite-Lived Intangible Assets [Line Items]
Acquisition intangibles, gross	3,694
Accumulated amortization	$ (37)

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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Sum of the carrying amounts of all intangible assets, excluding goodwill, as of the balance sheet date, net of accumulated amortization and impairment charges.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16212-109274

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph ((a)(1),(b))
-URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16323-109275

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