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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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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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Fair Value Measurement (Schedule Of Fair Value Assets And Liabilities Not Measured At Fair Value By Level) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	$ 143,409		$ 223,532
Securities held to maturity	3,741		4,541
Loans held for sale, at fair value	173,994		320,132
Non-covered loans and leases, net	6,787,117		6,681,080
Covered loans and leases, net	419,059		477,078
Restricted equity securities	32,112		33,443
FDIC indemnification asset	36,263	46,046	52,798	68,805	78,417	91,089
Deposits	8,956,325		9,379,275
Securities sold under agreements to repurchase	176,447		137,075
Term debt	252,543		253,605
Junior subordinated debentures, at amortized cost	102,060		110,985
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans held for sale, at fair value	173,994		320,132
Estimated Fair Value [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	804,994		543,787
Securities held to maturity	3,863		4,732
Non-covered loans and leases, net	6,675,579		6,652,179
Covered loans and leases, net	474,159		543,628
Restricted equity securities	32,112		33,443
Bank owned life insurance assets	95,459		93,831
FDIC indemnification asset	12,435		18,714
Visa Class B common stock	34,222		28,385
Securities sold under agreements to repurchase	176,447		137,075
Term debt	281,080		289,404
Junior subordinated debentures, at amortized cost	71,095		78,529
Estimated Fair Value [Member] \| Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	804,994		543,787
Securities held to maturity	0		0
Non-covered loans and leases, net	0		0
Covered loans and leases, net	0		0
Restricted equity securities	32,112		33,443
Bank owned life insurance assets	95,459		93,831
FDIC indemnification asset	0		0
Visa Class B common stock	0		0
Securities sold under agreements to repurchase	0		0
Term debt	0		0
Junior subordinated debentures, at amortized cost	0		0
Estimated Fair Value [Member] \| Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0		0
Securities held to maturity	0		0
Non-covered loans and leases, net	0		0
Covered loans and leases, net	0		0
Restricted equity securities	0		0
Bank owned life insurance assets	0		0
FDIC indemnification asset	0		0
Visa Class B common stock	0		0
Securities sold under agreements to repurchase	176,447		137,075
Term debt	281,080		289,404
Junior subordinated debentures, at amortized cost	0		0
Estimated Fair Value [Member] \| Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash and cash equivalents	0		0
Securities held to maturity	3,863		4,732
Non-covered loans and leases, net	6,675,579		6,652,179
Covered loans and leases, net	474,159		543,628
Restricted equity securities	0		0
Bank owned life insurance assets	0		0
FDIC indemnification asset	12,435		18,714
Visa Class B common stock	34,222		28,385
Securities sold under agreements to repurchase	0		0
Term debt	0		0
Junior subordinated debentures, at amortized cost	71,095		78,529
Estimated Fair Value [Member] \| Non-Maturity Deposits [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	7,114,330		7,376,288
Estimated Fair Value [Member] \| Non-Maturity Deposits [Member] \| Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	7,114,330		7,376,288
Estimated Fair Value [Member] \| Non-Maturity Deposits [Member] \| Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	0		0
Estimated Fair Value [Member] \| Non-Maturity Deposits [Member] \| Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	0		0
Estimated Fair Value [Member] \| Deposits with Stated Maturities [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	1,851,698		2,020,358
Estimated Fair Value [Member] \| Deposits with Stated Maturities [Member] \| Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	0		0
Estimated Fair Value [Member] \| Deposits with Stated Maturities [Member] \| Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	1,851,698		2,020,358
Estimated Fair Value [Member] \| Deposits with Stated Maturities [Member] \| Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Deposits	$ 0		$ 0