Securities Sold Under Agreements to Repurchase	3 Months Ended
Securities Sold Under Agreements to Repurchase	Mar. 31, 2015
Debt Disclosure [Abstract]
Securities Sold Under Agreements to Repurchase	Securities Sold Under Agreements to Repurchase The Company’s securities sold under agreements to repurchase (“repurchase agreements”) amounted to $425,652,000 and $397,107,000 at March 31, 2015 and December 31, 2014, respectively, are short-term in nature, and are secured by residential mortgage-backed securities with carrying values of $474,377,000 and $479,345,000, respectively. Securities are pledged to customers at the time of the transaction in an amount at least equal to the outstanding balance and is held in custody accounts by third parties. The fair value of collateral is continually monitored and additional collateral is provided as deemed appropriate.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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