Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 6
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-URI http://asc.fasb.org/extlink&oid=118939692&loc=d3e27290-111563

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (b)(3)
-URI http://asc.fasb.org/extlink&oid=118955579&loc=SL82922888-210455

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This item represents an increase to the cumulative amount of credit losses recognized in earnings for an other than temporary impairment (OTTI) of a debt security held for which no such other than temporary impairment (OTTI) was previously recognized.

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-Topic 320
-SubTopic 10
-Section 50
-Paragraph 8B
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+ References

No definition available.

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Securities (Other-Than-Temporary Impairment) (Details)	12 Months Ended
Securities (Other-Than-Temporary Impairment) (Details)	Dec. 31, 2019 USD ($) security	Dec. 31, 2018 USD ($) security	Dec. 31, 2017 USD ($)
Other than Temporary Impairment, Credit Losses Recognized in Earnings
Number of available-for-sale debt securities in an unrealized loss position	101	184
Collateralized loan obligations (“CLOs”)
Other than Temporary Impairment, Credit Losses Recognized in Earnings
Number of available-for-sale debt securities in an unrealized loss position	3
Mortgage backed securities issued by us government agencies and government sponsored enterprise
Other than Temporary Impairment, Credit Losses Recognized in Earnings
Number of available-for-sale debt securities in an unrealized loss position	57	108
U.S. government agency and U.S. government sponsored enterprise debt securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings
Number of available-for-sale debt securities in an unrealized loss position	14
U.S. Treasury securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings
Number of available-for-sale debt securities in an unrealized loss position		19
Foreign bonds
Other than Temporary Impairment, Credit Losses Recognized in Earnings
Number of available-for-sale debt securities in an unrealized loss position		16
Investment securities available for sale
Other than Temporary Impairment, Credit Losses Recognized in Earnings
OTTI credit losses \| $	$ 0	$ 0	$ 0