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Guarantees (Narrative) (Details) - USD ($) | 12 Months Ended
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Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Guarantee Obligations [Line Items] |  |  |
Acquired standby letters of credit and financial guarantees | $ 2,000,000 | $ 14,700,000 |
Unpaid principal balance of residential subject loans subject to credit recourse | 20,100,000 | 22,400,000 |
Repurchased GNMA | 515,000 |  |
Liability for estimated credit losses to loans sold with credit recourse | 710,000 | 439,000 |
Repurchased loans not subject to credit recourse provision | 3,700,000 | 22,100,000 |
Losses from repurchased loans subject to credit recourse | 380,000 | 1,400,000 | $ 143,000
Losses On Repurchased Loan Not Subject To Credit Recourse | 1,300,000 | 2,500,000 | $ 2,500,000
Serviced mortgage loans for third parties | 799,700,000 |  |
Funds Advanced To Investors Under Servicing Agreements | $ 334,000 | $ 301,000 |

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- Definition Commitment acquired under recent business acquisition wich represent an irrevocable undertaking (typically by a financial institution) to guarantee payment of a specified financial obligation. + References No definition available. + Details
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- Definition Amount of serviced loans for third parties. + References No definition available. + Details
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- Definition This balances represents the total of funds advanced to investors under servicing agreements. As stated in the note, under these servicing agreements, the Company is required to advance to investors the payment of principal, interest, taxes and insurance, if such payments have not been received from the borrowers. + References No definition available. + Details
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- Definition Gains (Losses) from repurchase of residential loans sold, not subject to credit recourse + References No definition available. + Details
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- Definition Unpaid principal amount of loans repurchased under representation and warranty arrangements. + References No definition available. + Details
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- Definition Unpaid principal amount of loans repurchased not under representation and warranty arrangements. + References No definition available. + Details
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- Definition Principal amount of transferred financial assets in which the transferor has continuing involvement with the assets underlying the transaction. Continuing involvement includes, but is not limited to, servicing, recourse, and restrictions on transferor's interests in transferred financial assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=51814546&loc=d3e107314-111719 + Details
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- Definition Amount represents the difference between the cash acquisition price of the debt and the net carrying amount of the debt at the time of its extinguishment. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of joint and several liability recognized in the balance sheet. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 405 -SubTopic 40 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=34748398&loc=SL34748401-199205 + Details
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