Securities (Continuous Unrealized Losses) (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Schedule of Available-for-sale Debt Securities
Available-for-sale debt securities, Less than 12 Months, Fair Value	$ 725,825	$ 1,388,661
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(25,946)	(18,990)
Available-for-sale debt securities, 12 Months or More, Fair Value	64,527	351,048
Available-for-sale debt securities, Gross Unrealized Loss, 12 Months or More	(3,759)	(4,249)
Available-for-sale debt securities Fair Value, Total	790,352	1,739,709
Available-for-sale debt securities, Gross Unrealized Loss, Total	(29,705)	(23,239)
U.S. Treasury securities
Schedule of Available-for-sale Debt Securities
Available-for-sale debt securities, Less than 12 Months, Fair Value		0
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months		0
Available-for-sale debt securities, 12 Months or More, Fair Value		176,422
Available-for-sale debt securities, Gross Unrealized Loss, 12 Months or More		(793)
Available-for-sale debt securities Fair Value, Total		176,422
Available-for-sale debt securities, Gross Unrealized Loss, Total		(793)
U.S. government agency and U.S. government-sponsored enterprise debt securities
Schedule of Available-for-sale Debt Securities
Available-for-sale debt securities, Less than 12 Months, Fair Value	24,868	310,349
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(132)	(4,407)
Available-for-sale debt securities, 12 Months or More, Fair Value	0	0
Available-for-sale debt securities, Gross Unrealized Loss, 12 Months or More	0	0
Available-for-sale debt securities Fair Value, Total	24,868	310,349
Available-for-sale debt securities, Gross Unrealized Loss, Total	(132)	(4,407)
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities - Commercial mortgage-backed securities
Schedule of Available-for-sale Debt Securities
Available-for-sale debt securities, Less than 12 Months, Fair Value	139,097	204,675
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(3,477)	(2,346)
Available-for-sale debt securities, 12 Months or More, Fair Value	11,572	108,314
Available-for-sale debt securities, Gross Unrealized Loss, 12 Months or More	(597)	(2,548)
Available-for-sale debt securities Fair Value, Total	150,669	312,989
Available-for-sale debt securities, Gross Unrealized Loss, Total	(4,074)	(4,894)
U.S. government agency and U.S. government-sponsored enterprise mortgage-backed securities - Residential mortgage-backed securities
Schedule of Available-for-sale Debt Securities
Available-for-sale debt securities, Less than 12 Months, Fair Value	91,491	325,354
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(157)	(1,234)
Available-for-sale debt securities, 12 Months or More, Fair Value	195	34,337
Available-for-sale debt securities, Gross Unrealized Loss, 12 Months or More	(2)	(243)
Available-for-sale debt securities Fair Value, Total	91,686	359,691
Available-for-sale debt securities, Gross Unrealized Loss, Total	(159)	(1,477)
Municipal securities
Schedule of Available-for-sale Debt Securities
Available-for-sale debt securities, Less than 12 Months, Fair Value	8,617	31,130
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(151)	(109)
Available-for-sale debt securities, 12 Months or More, Fair Value	0	0
Available-for-sale debt securities, Gross Unrealized Loss, 12 Months or More	0	0
Available-for-sale debt securities Fair Value, Total	8,617	31,130
Available-for-sale debt securities, Gross Unrealized Loss, Total	(151)	(109)
Non-agency commercial mortgage-backed securities
Schedule of Available-for-sale Debt Securities
Available-for-sale debt securities, Less than 12 Months, Fair Value	59,418	7,914
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(943)	(6)
Available-for-sale debt securities, 12 Months or More, Fair Value	0	0
Available-for-sale debt securities, Gross Unrealized Loss, 12 Months or More	0	0
Available-for-sale debt securities Fair Value, Total	59,418	7,914
Available-for-sale debt securities, Gross Unrealized Loss, Total	(943)	(6)
Non-agency residential mortgage-backed securities
Schedule of Available-for-sale Debt Securities
Available-for-sale debt securities, Less than 12 Months, Fair Value	23,720	42,894
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(14)	(285)
Available-for-sale debt securities, 12 Months or More, Fair Value	0	0
Available-for-sale debt securities, Gross Unrealized Loss, 12 Months or More	0	0
Available-for-sale debt securities Fair Value, Total	23,720	42,894
Available-for-sale debt securities, Gross Unrealized Loss, Total	(14)	(285)
Corporate debt securities
Schedule of Available-for-sale Debt Securities
Available-for-sale debt securities, Less than 12 Months, Fair Value	1,002	0
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(2)	0
Available-for-sale debt securities, 12 Months or More, Fair Value	9,500	9,888
Available-for-sale debt securities, Gross Unrealized Loss, 12 Months or More	(500)	(113)
Available-for-sale debt securities Fair Value, Total	10,502	9,888
Available-for-sale debt securities, Gross Unrealized Loss, Total	(502)	(113)
Foreign bonds
Schedule of Available-for-sale Debt Securities
Available-for-sale debt securities, Less than 12 Months, Fair Value	85,274	129,074
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(566)	(407)
Available-for-sale debt securities, 12 Months or More, Fair Value	0	9,900
Available-for-sale debt securities, Gross Unrealized Loss, 12 Months or More	0	(100)
Available-for-sale debt securities Fair Value, Total	85,274	138,974
Available-for-sale debt securities, Gross Unrealized Loss, Total	(566)	(507)
Asset-backed securities
Schedule of Available-for-sale Debt Securities
Available-for-sale debt securities, Less than 12 Months, Fair Value	18,359	52,565
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(483)	(902)
Available-for-sale debt securities, 12 Months or More, Fair Value	43,260	12,187
Available-for-sale debt securities, Gross Unrealized Loss, 12 Months or More	(2,660)	(452)
Available-for-sale debt securities Fair Value, Total	61,619	64,752
Available-for-sale debt securities, Gross Unrealized Loss, Total	(3,143)	(1,354)
Collateralized loan obligations (“CLOs”)
Schedule of Available-for-sale Debt Securities
Available-for-sale debt securities, Less than 12 Months, Fair Value	273,979	284,706
Available-for-sale debt securities, Gross Unrealized Loss, Less than 12 Months	(20,021)	(9,294)
Available-for-sale debt securities, 12 Months or More, Fair Value	0	0
Available-for-sale debt securities, Gross Unrealized Loss, 12 Months or More	0	0
Available-for-sale debt securities Fair Value, Total	273,979	284,706
Available-for-sale debt securities, Gross Unrealized Loss, Total	$ (20,021)	$ (9,294)

Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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