Long-Lived Assets - Schedule of Finite-Lived Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Summary of carrying value of assets
Gross Carrying Amount	$ 252,661	$ 267,017
Accumulated Amortization	(166,546)	(175,382)
Net Amount	86,115us-gaap_FiniteLivedIntangibleAssetsNet	91,635us-gaap_FiniteLivedIntangibleAssetsNet
Client contracts
Summary of carrying value of assets
Gross Carrying Amount	122,044	135,488
Accumulated Amortization	(78,015)	(88,585)
Net Amount	44,029	46,903
Software
Summary of carrying value of assets
Gross Carrying Amount	130,617	131,529
Accumulated Amortization	(88,531)	(86,797)
Net Amount	$ 42,086	$ 44,732

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

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