Organization and Business (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015 segment	Mar. 31, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Number of reportable segments	1us-gaap_NumberOfReportableSegments
Revenues	$ 245,206us-gaap_Revenues	$ 193,922us-gaap_Revenues
Long-Lived Assets	46,855us-gaap_NoncurrentAssets	35,130us-gaap_NoncurrentAssets
United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	184,671	191,188
Long-Lived Assets	37,141	32,669
Outside the United States [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenues	60,535	2,734
Long-Lived Assets	$ 9,714	$ 2,461

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 280

-SubTopic 10

-Section 50

-Paragraph 41

-Subparagraph (b)

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+ References

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 225

-SubTopic 10

-Section S99

-Paragraph 2

-Subparagraph (SX 210.5-03.1)

-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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