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Securities Available-For-Sale (Comparative Summary Of Mortgage-Backed Securities And Other Securities Available-For-Sale) (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2013 | Dec. 31, 2012
--- | --- | ---
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized cost | $ 945,934 | $ 1,244,777
Gross unrealized gains | 10,464 | 31,048
Gross unrealized losses | 19,313 | 194
Estimated fair value | 937,085 | 1,275,631
Pass-through Certificates [Member] | GSE [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized cost | 366,884 | 456,441
Gross unrealized gains | 8,573 | 22,996
Gross unrealized losses | 5,113 | 99
Estimated fair value | 370,344 | 479,338
Real Estate Mortgage Investments Conduits (REMICs) [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized cost | 868,933 | 1,158,071
Gross unrealized gains | 10,398 | 30,354
Gross unrealized losses | 19,208 | 194
Estimated fair value | 860,123 | 1,188,231
Real Estate Mortgage Investments Conduits (REMICs) [Member] | GSE [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized cost | 497,575 | 694,087
Gross unrealized gains | 1,699 | 7,092
Gross unrealized losses | 14,047 | 62
Estimated fair value | 485,227 | 701,117
Real Estate Mortgage Investments Conduits (REMICs) [Member] | Non-GSE [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized cost | 4,474 | 7,543
Gross unrealized gains | 126 | 266
Gross unrealized losses | 48 | 33
Estimated fair value | 4,552 | 7,776
Other Available For Sale Securities [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized cost | 77,001 | 86,706
Gross unrealized gains | 66 | 694
Gross unrealized losses | 105 |
Estimated fair value | 76,962 | 87,400
Other Available For Sale Securities [Member] | Equity Investments-Mutual Funds [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized cost | 510 | 12,998
Estimated fair value | 510 | 12,998
Other Available For Sale Securities [Member] | Corporate Bonds [Member] |  |
Schedule of Available-for-sale Securities [Line Items] |  |
Amortized cost | 76,491 | 73,708
Gross unrealized gains | 66 | 694
Gross unrealized losses | 105 |
Estimated fair value | $ 76,452 | $ 74,402

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- Definition This item represents the cost of debt securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any. + References No definition available. + Details
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- Definition Amount of debt securities categorized neither as held-to-maturity nor trading. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 137 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7534914&loc=d3e22054-111558 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 12 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 16 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 13 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 22 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS115-1/124-1 -Paragraph 15D -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FAS115-1/124-1 -Paragraph 15C -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 9: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6871852&loc=d3e26610-111562 Reference 10: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -Subparagraph (b)-(g) -URI http://asc.fasb.org/extlink&oid=6957658&loc=d3e62557-112803 + Details
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