Borrowed Funds - Schedule of Long-Term Borrowings (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Total long-term borrowings	$ 2,792,306	$ 2,697,299
Long-term borrowings [Member]
Debt Instrument [Line Items]
FHLB advances	1,982,268	2,008,370
Securities sold under agreements to repurchase	587,500	587,500
Subordinated debt	221,757	100,000
Other	781	1,429
Total long-term borrowings	$ 2,792,306	$ 2,697,299

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security resale agreement between the entity and another party for the purchase and resale of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement.

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of subordinated debt (with initial maturities beyond one year or beyond the operating cycle if longer). Subordinated debt places a lender in a lien position behind debt having a higher priority of repayment in liquidation of the entity's assets.

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