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No authoritative reference available. false 96 Amortized cost and estimated fair market value of securities Available for sale 2 us-gaap_AvailableForSaleSecuritiesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false terselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 97 Amortized Cost 2 us-gaap_AvailableForSaleSecuritiesAmortizedCost us-gaap true debit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 1917530000 1917530000 false false false 2 false false false false 0 0 false false false 3 false true false false 1257590000 1257590000 false false false xbrli:monetaryItemType monetary This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments made for accretion, amortization, other-than-temporary impairments, and hedging, if any. 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Such gross unrealized gains are the excess of the fair value of the Available-for-sale Securities over their carrying value as of the reporting date. Such gross unrealized gains are included in other comprehensive income in the statement of shareholders' equity, unless the Available-for-sale Security is designated as a hedge. All or a portion of the unrealized holding gain 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. 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Such gross unrealized losses are the excess of the carrying value of the Available-for-sale Securities over their fair value as of the reporting date. Such gross unrealized losses are included in other comprehensive income in the statement of shareholders' equity, 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 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. 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Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents securitized, pay-through debt securities collateralized by real estate mortgage loans (mortgages) as of the balance sheet date which have been categorized as available-for-sale. 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Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 19 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 137 false 107 Gross Unrealized Losses 2 us-gaap_HeldToMaturitySecuritiesUnrecognizedHoldingLosses us-gaap true debit duration No definition available. false false false false false false false false false false false verboselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false true false false -1000 -1000 false false false xbrli:monetaryItemType monetary As of the balance sheet date, the excess of carrying value (amortized cost) over fair value of a debt security categorized as held-to-maturity, exclusive of dividend or interest income recognized but not yet received and exclusive of any write-downs for other-than-temporary impairment. Such item represents the gross unrecognized holding loss. Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 19 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 137 false 108 Estimated Fair Market Value 2 us-gaap_HeldToMaturitySecuritiesDebtMaturitiesFairValue us-gaap true debit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 105152000 105152000 false false false 2 false false false false 0 0 false false false 3 false true false false 114787000 114787000 false false false xbrli:monetaryItemType monetary This item represents the total of all debt securities grouped by maturity dates, at fair value, which are categorized as held-to-maturity. 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No authoritative reference available. false 378 Amortized cost and estimated fair market value of securities Available for sale 2 us-gaap_AvailableForSaleSecuritiesAbstract us-gaap true na duration No definition available. false false false false false true false false false false false terselabel false 1 false false false false 0 0 false false false 2 false false false false 0 0 false false false 3 false false false false 0 0 false false false xbrli:stringItemType string No definition available. false 379 Amortized Cost 2 us-gaap_AvailableForSaleSecuritiesAmortizedCost us-gaap true debit instant No definition available. false false false false false false false false false false false verboselabel false 1 false true false false 728436000 728436000 false false false 2 false false false false 0 0 false false false 3 false true false false 1057007000 1057007000 false false false xbrli:monetaryItemType monetary This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments made for accretion, amortization, other-than-temporary impairments, and hedging, if any. 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Such gross unrealized gains are the excess of the fair value of the Available-for-sale Securities over their carrying value as of the reporting date. Such gross unrealized gains are included in other comprehensive income in the statement of shareholders' equity, unless the Available-for-sale Security is designated as a hedge. All or a portion of the unrealized holding gain 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. 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