XML 35 R52.htm IDEA: XBRL DOCUMENT  v2.3.0.11

Estimated Fair Values (Assets And Liabilities Carried At Fair Value On A Recurring Basis) (Details) (USD $)
In Thousands

Jun. 30, 2011

Dec. 31, 2010

Jun. 30, 2010

Total investment securities available for sale, fair value

$ 4,014,241

^[1]

$ 4,510,076

^[2]

$ 3,768,777

^[1]

U.S. Government [Member] | Fair Value [Member]

Investment securities available for sale

1,289,282

1,939,400

2,182,978

U.S. Government [Member] | Fair Value, Inputs, Level 1 [Member]

Investment securities available for sale

1,289,282

1,939,400

2,182,978

U.S. Government [Member] | Fair Value, Inputs, Level 3 [Member]

Investment securities available for sale

Corporate Bonds [Member] | Fair Value [Member]

Investment securities available for sale

466,971

486,658

489,583

Corporate Bonds [Member] | Fair Value, Inputs, Level 1 [Member]

Investment securities available for sale

466,971

486,658

489,583

Corporate Bonds [Member] | Fair Value, Inputs, Level 3 [Member]

Investment securities available for sale

Government Agency [Member] | Fair Value [Member]

Investment securities available for sale

1,904,843

1,919,986

901,739

Government Agency [Member] | Fair Value, Inputs, Level 1 [Member]

Investment securities available for sale

1,904,843

1,919,986

901,739

Government Agency [Member] | Fair Value, Inputs, Level 3 [Member]

Investment securities available for sale

Residential Mortgage-Backed Securities [Member] | Fair Value [Member]

Investment securities available for sale

333,483

143,545

174,516

Residential Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 2 [Member]

Investment securities available for sale

333,483

143,545

174,516

Residential Mortgage-Backed Securities [Member] | Fair Value, Inputs, Level 3 [Member]

Investment securities available for sale

Equity Securities [Member] | Fair Value [Member]

Investment securities available for sale

18,609

19,231

18,691

Equity Securities [Member] | Fair Value, Inputs, Level 1 [Member]

Investment securities available for sale

18,609

19,231

18,691

Equity Securities [Member] | Fair Value, Inputs, Level 3 [Member]

Investment securities available for sale

State, County, Municipal [Member] | Fair Value [Member]

Investment securities available for sale

1,053

1,256

1,270

State, County, Municipal [Member] | Fair Value, Inputs, Level 2 [Member]

Investment securities available for sale

1,053

1,256

1,270

State, County, Municipal [Member] | Fair Value, Inputs, Level 3 [Member]

Investment securities available for sale

Fair Value [Member]

Total investment securities available for sale, fair value

4,014,241

4,510,076

3,768,777

Interest rate swaps accounted for as cash flow hedges

9,800

9,492

11,309

Fair Value, Inputs, Level 1 [Member]

Total investment securities available for sale, fair value

3,679,705

4,365,275

3,592,991

Fair Value, Inputs, Level 2 [Member]

Total investment securities available for sale, fair value

334,536

144,801

175,786

Interest rate swaps accounted for as cash flow hedges

9,800

9,492

11,309

Fair Value, Inputs, Level 3 [Member]

Total investment securities available for sale, fair value

Interest rate swaps accounted for as cash flow hedges

[1]	Unaudited
[2]	Derived from the 2010 Annual Report on Form 10-K.

X

- Definition

For an unclassified balance sheet, this item represents investments in debt and equity securities which are categorized neither as held-to-maturity nor trading. Such securities are reported at fair value, with unrealized gains and losses excluded from earnings and reported in a separate component of shareholders' equity (other comprehensive income), unless the Available-for-sale Security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain or loss of an Available-for-sale Security that is designated as being hedged in a fair value hedge shall be recognized in earnings during the period of the hedge, as should other than temporary declines in fair value below costs basis.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 16

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 22

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 12
-Subparagraph b

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 13

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 14

+ Details

Name:	us-gaap_AvailableForSaleSecurities
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

This element represents a certain statement of financial position liability caption which represents a class of liabilities, or which may include an individual liability, measured at fair value on a recurring basis.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32
-Subparagraph a

+ Details

Name:	us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisDerivativeFinancialInstrumentsLiabilities
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

This element represents a certain statement of financial position asset caption which represents a class of assets, or which may include an individual asset, measured at fair value on a recurring basis.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 157
-Paragraph 32
-Subparagraph a

+ Details

Name:	us-gaap_FairValueMeasuredOnRecurringBasisInvestments
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant