The carrying value as of the balance sheet date of junior subordinated debentures, at amortized cost.

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The carrying amount of a life insurance policy on an officer, executive or employee for which the reporting entity (a bank) is entitled to proceeds from the policy upon death of the insured or surrender of the insurance policy.

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For banks and other depository institutions: Includes cash on hand (currency and coin), cash items in process of collection, noninterest bearing deposits due from other financial institutions (including corporate credit unions), and noninterest bearing balances with the Federal Reserve Banks, Federal Home Loan Banks and central banks.

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Carrying amount of receivable assets originating from the indemnification agreement with the Federal Deposit Insurance Corporation (FDIC), in which the FDIC is to partially cover losses.

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Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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Net carrying amount of loans and leases receivable covered by loss sharing agreements.

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The aggregate carrying amount of loans receivable that will be sold to other entities. Includes mortgage and all other loans (collectively, loans) not classified as held for investment. Such loans are stated at the lower of cost or market, or elected fair value. Mortgage loans exclude mortgage-backed securities which are considered a debt security (other loan).

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Fair Value Measurement (Schedule Of Fair Value Assets And Liabilities Not Measured At Fair Value By Level) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Jun. 30, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Dec. 31, 2010
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 159,290		$ 152,265
Securities held to maturity	5,359		4,714
Loans held for sale	225,882		98,691
Non-covered loans and leases, net	6,248,425		5,888,098
Covered loans and leases, net	515,045		622,451
Restricted equity securities	31,365		32,581
FDIC indemnification asset	60,506	68,805	91,089	106,378	116,928	146,413
Deposits	9,099,929		9,236,690
Securities sold under agreements to repurchase	161,051		124,605
Term debt	254,123		255,676
Junior subordinated debentures, at amortized cost	102,302		102,544
Estimated Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	496,606
Securities held to maturity	5,364
Loans held for sale	225,882
Non-covered loans and leases, net	6,111,527
Covered loans and leases, net	579,063
Restricted equity securities	31,365
Bank owned life insurance assets	94,925
FDIC indemnification asset	21,914
Visa Class B common stock	25,146
Securities sold under agreements to repurchase	161,051
Term debt	283,396
Junior subordinated debentures, at amortized cost	69,954
Estimated Fair Value [Member] \| Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	496,606
Restricted equity securities	31,365
Bank owned life insurance assets	94,925
Securities sold under agreements to repurchase	161,051
Estimated Fair Value [Member] \| Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held for sale	225,882
Term debt	283,396
Estimated Fair Value [Member] \| Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities held to maturity	5,364
Non-covered loans and leases, net	6,111,527
Covered loans and leases, net	579,063
FDIC indemnification asset	21,914
Visa Class B common stock	25,146
Junior subordinated debentures, at amortized cost	69,954
Estimated Fair Value [Member] \| Non-Maturity Deposits [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	7,075,861
Estimated Fair Value [Member] \| Non-Maturity Deposits [Member] \| Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	7,075,861
Estimated Fair Value [Member] \| Deposits with Stated Maturities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	2,044,805
Estimated Fair Value [Member] \| Deposits with Stated Maturities [Member] \| Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	$ 2,044,805