Investment Securities, AFS and HTM Securities Gross Unrealized Losses (Details) $ in Thousands	Dec. 31, 2023 USD ($) security	Dec. 31, 2022 USD ($) security
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | security	82	446
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ (4,773)	$ (48,263)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 307,527	$ 847,391
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security	213	121
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ (168,728)	$ (207,575)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	1,392,635	1,576,665
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(173,501)	(255,837)
Debt Securities, Available-for-sale, Unrealized Loss Position	1,700,162	2,424,055
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(2,184)	(134,556)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	220,865	1,381,511
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(533,046)	(485,855)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	2,566,468	1,752,354
Debt Securities, Held-to-Maturity, Unrealized Loss Position, Accumulated Loss	(535,230)	(620,411)
Debt Securities, Held-to-Maturity, Unrealized Loss Position, Fair Value	$ 2,787,333	$ 3,133,865
US Treasury Securities [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | security	0	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ 0	$ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 0	$ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security	1	7
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ (4,083)	$ (15,063)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	35,902	109,378
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(4,083)	(15,063)
Debt Securities, Available-for-sale, Unrealized Loss Position	35,902	109,378
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	(62)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	0	936
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(36)	0
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	963	0
Debt Securities, Held-to-Maturity, Unrealized Loss Position, Accumulated Loss	(36)	(62)
Debt Securities, Held-to-Maturity, Unrealized Loss Position, Fair Value	$ 963	$ 936
Agency Securities [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | security		0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss		$ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months		$ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security		1
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss		$ (1,468)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer		13,532
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss		(1,468)
Debt Securities, Available-for-sale, Unrealized Loss Position		$ 13,532
US States and Political Subdivisions Debt Securities [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | security	41	358
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ (347)	$ (5,066)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 23,762	$ 201,260
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security	92	4
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ (1,867)	$ (8)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	53,022	1,916
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(2,214)	(5,074)
Debt Securities, Available-for-sale, Unrealized Loss Position	76,784	203,176
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(1,535)	(96,282)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	180,270	1,079,216
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(132,518)	(86,415)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	792,940	231,022
Debt Securities, Held-to-Maturity, Unrealized Loss Position, Accumulated Loss	(134,053)	(182,697)
Debt Securities, Held-to-Maturity, Unrealized Loss Position, Fair Value	973,210	1,310,238
Mortgage-Backed Securities, Issued by Private Enterprises [Member]
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	(9,509)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	0	58,733
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(65,372)	(63,411)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	289,507	244,772
Debt Securities, Held-to-Maturity, Unrealized Loss Position, Accumulated Loss	(65,372)	(72,920)
Debt Securities, Held-to-Maturity, Unrealized Loss Position, Fair Value	$ 289,507	$ 303,505
FFELP asset backed securities
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | security	0	3
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ 0	$ (1,668)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 0	$ 44,304
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security	14	12
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ (1,862)	$ (4,278)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	125,339	106,887
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(1,862)	(5,947)
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 125,339	$ 151,191
US Government-sponsored Enterprises Debt Securities [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | security	0	2
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ 0	$ (1)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 0	$ 417
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security	5	6
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ (28)	$ (50)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	761	2,057
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(28)	(51)
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 761	$ 2,474
Debt Securities [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | security	1	2
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ (9)	$ (30)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 991	$ 1,970
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security	2	1
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ (42)	$ (49)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	1,958	951
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(50)	(78)
Debt Securities, Available-for-sale, Unrealized Loss Position	$ 2,950	$ 2,922
FNMA/FHLMC [Member] | Residential Related Securities
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | security	18	24
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ (333)	$ (31,266)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 22,870	$ 260,986
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security	71	84
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ (153,219)	$ (185,170)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	1,080,337	1,321,420
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(153,552)	(216,436)
Debt Securities, Available-for-sale, Unrealized Loss Position	1,103,207	1,582,406
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(511)	(18,925)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	30,323	143,201
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(164,076)	(156,836)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	771,042	671,570
Debt Securities, Held-to-Maturity, Unrealized Loss Position, Accumulated Loss	(164,587)	(175,760)
Debt Securities, Held-to-Maturity, Unrealized Loss Position, Fair Value	$ 801,365	$ 814,770
FNMA/FHLMC [Member] | Commercial Mortgage-Backed Securities [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | security	0	1
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ 0	$ (1,896)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 0	$ 17,142
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security	1	0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ (1,755)	$ 0
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	16,937	0
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(1,755)	(1,896)
Debt Securities, Available-for-sale, Unrealized Loss Position	16,937	17,142
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(121)	(3,814)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	8,144	20,338
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(160,660)	(174,467)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	624,770	576,911
Debt Securities, Held-to-Maturity, Unrealized Loss Position, Accumulated Loss	(160,781)	(178,281)
Debt Securities, Held-to-Maturity, Unrealized Loss Position, Fair Value	$ 632,914	$ 597,249
Government National Mortgage Association (GNMA) | Residential Related Securities
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | security	13	23
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ (924)	$ (4,415)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 156,847	$ 220,276
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security	5	2
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ (1,898)	$ (840)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	26,643	11,096
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(2,822)	(5,255)
Debt Securities, Available-for-sale, Unrealized Loss Position	183,490	231,372
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	(17)	(3,436)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	2,128	44,476
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(2,884)	0
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	34,626	0
Debt Securities, Held-to-Maturity, Unrealized Loss Position, Accumulated Loss	(2,901)	(3,436)
Debt Securities, Held-to-Maturity, Unrealized Loss Position, Fair Value	$ 36,754	$ 44,476
Government National Mortgage Association (GNMA) | Commercial Mortgage-Backed Securities [Member]
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions | security	9	33
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	$ (3,160)	$ (3,920)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months	$ 103,055	$ 101,036
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | security	22	4
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	$ (3,975)	$ (649)
Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer	51,738	9,426
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss	(7,135)	(4,569)
Debt Securities, Available-for-sale, Unrealized Loss Position	154,793	110,462
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	(2,528)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	0	34,612
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	(7,500)	(4,726)
Debt Securities, Held-to-Maturity, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	52,619	28,080
Debt Securities, Held-to-Maturity, Unrealized Loss Position, Accumulated Loss	(7,500)	(7,254)
Debt Securities, Held-to-Maturity, Unrealized Loss Position, Fair Value	$ 52,619	$ 62,691
Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than One Year [Member]
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | security	205	947
Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than One Year [Member] | US Treasury Securities [Member]
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | security	0	1
Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than One Year [Member] | US States and Political Subdivisions Debt Securities [Member]
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | security	182	771
Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than One Year [Member] | Mortgage-Backed Securities, Issued by Private Enterprises [Member]
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | security	0	3
Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than One Year [Member] | FNMA/FHLMC [Member] | Residential Related Securities
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | security	20	79
Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than One Year [Member] | FNMA/FHLMC [Member] | Commercial Mortgage-Backed Securities [Member]
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | security	1	4
Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than One Year [Member] | Government National Mortgage Association (GNMA) | Residential Related Securities
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | security	2	81
Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than One Year [Member] | Government National Mortgage Association (GNMA) | Commercial Mortgage-Backed Securities [Member]
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | security	0	8
Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Greater Than Or Equal To One Year [Member]
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | security	785	238
Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Greater Than Or Equal To One Year [Member] | US Treasury Securities [Member]
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | security	1	0
Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Greater Than Or Equal To One Year [Member] | US States and Political Subdivisions Debt Securities [Member]
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | security	537	156
Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Greater Than Or Equal To One Year [Member] | Mortgage-Backed Securities, Issued by Private Enterprises [Member]
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | security	18	15
Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Greater Than Or Equal To One Year [Member] | FNMA/FHLMC [Member] | Residential Related Securities
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | security	94	22
Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Greater Than Or Equal To One Year [Member] | FNMA/FHLMC [Member] | Commercial Mortgage-Backed Securities [Member]
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | security	44	39
Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Greater Than Or Equal To One Year [Member] | Government National Mortgage Association (GNMA) | Residential Related Securities
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | security	78	0
Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Greater Than Or Equal To One Year [Member] | Government National Mortgage Association (GNMA) | Commercial Mortgage-Backed Securities [Member]
Held-to-maturity Securities Continuous Unrealized Loss Position [Abstract]
Debt Securities, Available-for-sale, Unrealized Loss Position, Number of Positions | security	13	6