Income Taxes Income Taxes (Details 4) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2012
Reconciliation of Unrecognized Tax Benefits [Roll Forward]
Balance, December 31, 2013	$ 0us-gaap_UnrecognizedTaxBenefits	$ 0us-gaap_UnrecognizedTaxBenefits
Increase related to CapitalSource Inc. merger	18,724,000
Increase based on tax positions related to prior years	2,371,000
Reductions related to settlements	(293,000)
Reductions for tax positions as a result of a lapse of the applicable statute of limitations	(301,000)
Balance, December 31, 2014	$ 20,501,000us-gaap_UnrecognizedTaxBenefits	$ 0us-gaap_UnrecognizedTaxBenefits

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

-URI http://asc.fasb.org/extlink&oid=6527854

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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-Name Accounting Standards Codification

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Amount of increase in unrecognized tax benefits resulting from acquisitions.

+ References

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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