Loans Receivable, Net - Credit Quality Indicators for Commercial Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Gross Charge-Offs
Total	$ 15,095	$ 14,970	$ 11,594
Financing Receivable, before Allowance for Credit Loss, by Origination Year
Total	16,198,082	15,246,812
Commercial Real Estate
Gross Charge-Offs
Current Year	889
One Year Prior	430
Two Years Prior	145
Three Years Prior	0
Four Years Prior	0
Prior	616
Revolving loans	0
Total	2,080	2,171	279
Financing Receivable, before Allowance for Credit Loss, by Origination Year
Current Year	1,316,100	2,584,831
One Year Prior	2,547,939	2,457,790
Two Years Prior	2,200,677	1,274,852
Three Years Prior	1,130,117	744,634
Four Years Prior	691,810	658,268
Prior	2,129,808	1,851,965
Revolving loans	286,855	224,707
Total	10,303,306	9,797,047
Commercial Real Estate | Pass
Financing Receivable, before Allowance for Credit Loss, by Origination Year
Current Year	1,313,446	2,578,558
One Year Prior	2,520,484	2,454,696
Two Years Prior	2,178,153	1,269,254
Three Years Prior	1,124,525	709,246
Four Years Prior	656,203	634,316
Prior	2,053,011	1,787,941
Revolving loans	285,432	224,629
Total	10,131,254	9,658,640
Commercial Real Estate | Special Mention
Financing Receivable, before Allowance for Credit Loss, by Origination Year
Current Year	97	0
One Year Prior	12,855	0
Two Years Prior	19,782	0
Three Years Prior	0	0
Four Years Prior	1,104	0
Prior	18,818	1,416
Revolving loans	1	0
Total	52,657	1,416
Commercial Real Estate | Substandard
Financing Receivable, before Allowance for Credit Loss, by Origination Year
Current Year	2,557	6,273
One Year Prior	14,600	3,094
Two Years Prior	2,742	5,598
Three Years Prior	5,592	35,388
Four Years Prior	34,503	23,952
Prior	57,948	62,576
Revolving loans	1,421	78
Total	119,363	136,959
Commercial Real Estate | Doubtful/ Loss
Financing Receivable, before Allowance for Credit Loss, by Origination Year
Current Year	0	0
One Year Prior	0	0
Two Years Prior	0	0
Three Years Prior	0	0
Four Years Prior	0	0
Prior	31	32
Revolving loans	1	0
Total	32	32
Other Commercial
Gross Charge-Offs
Current Year	3,080
One Year Prior	406
Two Years Prior	0
Three Years Prior	92
Four Years Prior	0
Prior	313
Revolving loans	0
Total	3,891	4,201	$ 4,826
Financing Receivable, before Allowance for Credit Loss, by Origination Year
Current Year	369,059	603,393
One Year Prior	566,295	573,273
Two Years Prior	531,558	308,555
Three Years Prior	245,962	191,498
Four Years Prior	145,828	140,122
Prior	448,619	404,319
Revolving loans	594,542	578,508
Total	2,901,863	2,799,668
Other Commercial | Pass
Financing Receivable, before Allowance for Credit Loss, by Origination Year
Current Year	367,337	599,498
One Year Prior	561,567	569,542
Two Years Prior	519,151	304,179
Three Years Prior	240,613	185,748
Four Years Prior	141,336	135,727
Prior	443,400	398,523
Revolving loans	577,953	567,770
Total	2,851,357	2,760,987
Other Commercial | Special Mention
Financing Receivable, before Allowance for Credit Loss, by Origination Year
Current Year	0	371
One Year Prior	3,319	0
Two Years Prior	10,187	0
Three Years Prior	0	0
Four Years Prior	0	0
Prior	0	114
Revolving loans	11,977	0
Total	25,483	485
Other Commercial | Substandard
Financing Receivable, before Allowance for Credit Loss, by Origination Year
Current Year	1,603	3,469
One Year Prior	1,408	2,707
Two Years Prior	2,218	4,373
Three Years Prior	5,347	5,748
Four Years Prior	4,490	4,394
Prior	5,219	5,322
Revolving loans	4,612	10,604
Total	24,897	36,617
Other Commercial | Doubtful/ Loss
Financing Receivable, before Allowance for Credit Loss, by Origination Year
Current Year	119	55
One Year Prior	1	1,024
Two Years Prior	2	3
Three Years Prior	2	2
Four Years Prior	2	1
Prior	0	360
Revolving loans	0	134
Total	$ 126	$ 1,579