Securities Available for sale, Unrealized Loss Position, Fair Value (Details) $ in Thousands	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Available for sale, Unrealized Loss Position [Line Items]
Available for sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	1,202	1,123
Available for sale, Securities in Unrealized Loss Position, Less than 12 Months [Abstract]
Available for sale securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 3,846,190	$ 1,205,822
Available for sale securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	6,381,398	8,087,455
Available for sale securities, Unrealized Loss Position, Fair Value	10,227,588	9,293,277
Available for sale securities, Securities in Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	53,117	7,969
Available for sale securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	514,129	661,476
Available for sale securities, Unrealized Loss Position, Accumulated Loss	567,246	$ 669,445
Debt Securities, Available-for-sale, Allowance for Credit Loss	$ 0
U.S. Treasury [Member]
Available for sale, Unrealized Loss Position [Line Items]
Available for sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	1	1
Available for sale, Securities in Unrealized Loss Position, Less than 12 Months [Abstract]
Available for sale securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 0	$ 0
Available for sale securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	945	925
Available for sale securities, Unrealized Loss Position, Fair Value	945	925
Available for sale securities, Securities in Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	0
Available for sale securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	55	75
Available for sale securities, Unrealized Loss Position, Accumulated Loss	$ 55	$ 75
Municipal securities [Member]
Available for sale, Unrealized Loss Position [Line Items]
Available for sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	113	190
Available for sale, Securities in Unrealized Loss Position, Less than 12 Months [Abstract]
Available for sale securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 1,041	$ 6,799
Available for sale securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	222,432	494,955
Available for sale securities, Unrealized Loss Position, Fair Value	223,473	501,754
Available for sale securities, Securities in Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	13	410
Available for sale securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	14,949	41,465
Available for sale securities, Unrealized Loss Position, Accumulated Loss	$ 14,962	$ 41,875
Residential agency mortgage-backed securities [Member]
Available for sale, Unrealized Loss Position [Line Items]
Available for sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	831	630
Available for sale, Securities in Unrealized Loss Position, Less than 12 Months [Abstract]
Available for sale securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 3,561,318	$ 690,118
Available for sale securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	2,880,641	3,717,975
Available for sale securities, Unrealized Loss Position, Fair Value	6,441,959	4,408,093
Available for sale securities, Securities in Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	50,102	3,689
Available for sale securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	224,345	265,219
Available for sale securities, Unrealized Loss Position, Accumulated Loss	$ 274,447	$ 268,908
Residential non-agency mortgage-backed securities [Member]
Available for sale, Unrealized Loss Position [Line Items]
Available for sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	36	32
Available for sale, Securities in Unrealized Loss Position, Less than 12 Months [Abstract]
Available for sale securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 93,113	$ 116,077
Available for sale securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	457,701	451,370
Available for sale securities, Unrealized Loss Position, Fair Value	550,814	567,447
Available for sale securities, Securities in Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	1,124	1,244
Available for sale securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	43,456	45,279
Available for sale securities, Unrealized Loss Position, Accumulated Loss	$ 44,580	$ 46,523
Commercial agency mortgage-backed securities [Member]
Available for sale, Unrealized Loss Position [Line Items]
Available for sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	220	269
Available for sale, Securities in Unrealized Loss Position, Less than 12 Months [Abstract]
Available for sale securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 190,718	$ 392,828
Available for sale securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	2,819,206	3,421,757
Available for sale securities, Unrealized Loss Position, Fair Value	3,009,924	3,814,585
Available for sale securities, Securities in Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	1,878	2,626
Available for sale securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	231,297	309,411
Available for sale securities, Unrealized Loss Position, Accumulated Loss	$ 233,175	$ 312,037
Other debt securities [Member]
Available for sale, Unrealized Loss Position [Line Items]
Available for sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions	1	1
Available for sale, Securities in Unrealized Loss Position, Less than 12 Months [Abstract]
Available for sale securities, Continuous Unrealized Loss Position, Less than 12 Months, Fair Value	$ 0	$ 0
Available for sale securities, Continuous Unrealized Loss Position, 12 Months or Longer, Fair Value	473	473
Available for sale securities, Unrealized Loss Position, Fair Value	473	473
Available for sale securities, Securities in Unrealized Loss Position, Accumulated Loss [Abstract]
Available for sale securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss	0	0
Available for sale securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss	27	27
Available for sale securities, Unrealized Loss Position, Accumulated Loss	$ 27	$ 27

Available-for-sale Securities, Securities in Unrealized Loss Position, Accumulated Loss [Abstract]

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Amount of allowance for credit loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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