Estimated Fair Values (Fair Value Measured on Recurring and Nonrecurring Basis) (Details) - USD ($)
|
Jun. 30, 2026 |
Dec. 31, 2025 |
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Derivative assets |
|
$ 344,620,000
|
|
$ 350,117,000
|
|
| Derivative Asset, Subject to Master Netting Arrangement, Gross Liability and Collateral, Obligation to Return Cash, Offset |
[1],[2] |
235,783,000
|
|
271,014,000
|
|
| Derivative liabilities |
|
7,032,000
|
|
1,994,000
|
|
| Derivative Liability, Subject to Master Netting Arrangement, Gross Asset and Collateral, Right to Reclaim Cash, Offset |
[2] |
(72,808,000)
|
|
(124,837,000)
|
[1] |
| Fair Value |
|
20,595,928,000
|
|
18,189,327,000
|
|
| Fair Value, Inputs, Level 1 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Trading securities |
|
0
|
|
0
|
|
| Derivative assets |
|
0
|
|
0
|
|
| Derivative liabilities |
|
0
|
|
0
|
|
| Fair Value |
|
0
|
|
0
|
|
| Fair Value, Inputs, Level 2 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Trading securities |
|
113,575,000
|
|
119,676,000
|
|
| Derivative assets |
|
108,837,000
|
|
79,103,000
|
|
| Derivative liabilities |
|
79,840,000
|
|
126,831,000
|
|
| Fair Value |
|
20,500,323,000
|
|
18,087,199,000
|
|
| Fair Value, Inputs, Level 3 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Trading securities |
|
0
|
|
0
|
|
| Derivative assets |
|
0
|
|
0
|
|
| Derivative liabilities |
|
0
|
|
0
|
|
| Fair Value |
|
95,605,000
|
|
102,128,000
|
|
| Fair Value, Recurring [Member] |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Derivative Asset, Subject to Master Netting Arrangement, Gross Liability and Collateral, Obligation to Return Cash, Offset |
|
235,783,000
|
|
271,014,000
|
|
| Derivative Liability, Subject to Master Netting Arrangement, Gross Asset and Collateral, Right to Reclaim Cash, Offset |
|
(72,808,000)
|
[1] |
(124,837,000)
|
|
| Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Trading securities |
|
0
|
|
0
|
|
| AFS Securities |
|
0
|
|
0
|
|
| Derivative assets |
|
0
|
|
0
|
|
| Derivative liabilities |
|
0
|
|
|
|
| Total assets at fair value |
|
0
|
|
0
|
|
| Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Trading securities |
|
113,575,000
|
|
119,676,000
|
|
| AFS Securities |
|
20,500,323,000
|
|
18,087,199,000
|
|
| Derivative assets |
|
108,837,000
|
|
79,103,000
|
|
| Derivative liabilities |
|
79,840,000
|
|
126,831,000
|
|
| Total assets at fair value |
|
20,722,735,000
|
|
18,285,978,000
|
|
| Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Trading securities |
|
0
|
|
0
|
|
| AFS Securities |
|
95,605,000
|
|
102,128,000
|
|
| Derivative assets |
|
0
|
|
0
|
|
| Derivative liabilities |
|
0
|
|
0
|
|
| Total assets at fair value |
|
95,605,000
|
|
102,128,000
|
|
| Fair Value, Nonrecurring [Member] | Fair Value, Inputs, Level 3 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Mortgage loans held for portfolio |
|
5,399,000
|
|
10,751,000
|
|
| REO - FV |
|
906,000
|
|
328,000
|
|
| Total assets at fair value |
|
6,305,000
|
|
11,079,000
|
|
| Interest Rate Swap [Member] | Fair Value, Recurring [Member] |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Derivative Asset, Subject to Master Netting Arrangement, Gross Liability and Collateral, Obligation to Return Cash, Offset |
|
235,783,000
|
|
271,014,000
|
|
| Derivative Liability, Subject to Master Netting Arrangement, Gross Asset and Collateral, Right to Reclaim Cash, Offset |
|
(72,808,000)
|
|
(124,837,000)
|
|
| Interest Rate Swap [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Derivative assets |
|
0
|
|
0
|
|
| Derivative liabilities |
|
0
|
|
0
|
|
| Interest Rate Swap [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Derivative assets |
|
108,830,000
|
|
79,097,000
|
|
| Derivative liabilities |
|
78,890,000
|
|
126,233,000
|
|
| Interest Rate Swap [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Derivative assets |
|
0
|
|
0
|
|
| Derivative liabilities |
|
0
|
|
0
|
|
| U.S. Treasury obligations |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Fair Value |
|
5,105,478,000
|
|
4,912,280,000
|
|
| U.S. Treasury obligations | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| AFS Securities |
|
5,105,478,000
|
|
4,912,280,000
|
|
| GSE obligations |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Trading securities |
|
113,575,000
|
|
119,676,000
|
|
| Fair Value |
|
775,565,000
|
|
834,063,000
|
|
| GSE obligations | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Trading securities |
|
0
|
|
0
|
|
| AFS Securities |
|
0
|
|
0
|
|
| GSE obligations | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Trading securities |
|
113,575,000
|
|
119,676,000
|
|
| AFS Securities |
|
775,565,000
|
|
834,063,000
|
|
| GSE obligations | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Trading securities |
|
0
|
|
0
|
|
| AFS Securities |
|
0
|
|
0
|
|
| State or local agency obligations [Member] |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Fair Value |
|
175,902,000
|
|
174,833,000
|
|
| State or local agency obligations [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| AFS Securities |
|
0
|
|
|
|
| Fair Value |
|
|
|
0
|
|
| State or local agency obligations [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| AFS Securities |
|
175,902,000
|
|
|
|
| Fair Value |
|
|
|
174,833,000
|
|
| State or local agency obligations [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| AFS Securities |
|
0
|
|
|
|
| Fair Value |
|
|
|
0
|
|
| U.S. obligations single-family |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Fair Value |
|
1,447,418,000
|
|
1,303,882,000
|
|
| U.S. obligations single-family | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| AFS Securities |
|
0
|
|
|
|
| Fair Value |
|
|
|
0
|
|
| U.S. obligations single-family | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| AFS Securities |
|
1,447,418,000
|
|
|
|
| Fair Value |
|
|
|
1,303,882,000
|
|
| U.S. obligations single-family | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| AFS Securities |
|
0
|
|
|
|
| Fair Value |
|
|
|
0
|
|
| Private label MBS [Member] |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Fair Value |
|
95,605,000
|
|
102,128,000
|
|
| Private label MBS [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| AFS Securities |
|
0
|
|
|
|
| Fair Value |
|
|
|
0
|
|
| Private label MBS [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| AFS Securities |
|
0
|
|
|
|
| Fair Value |
|
|
|
0
|
|
| Private label MBS [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| AFS Securities |
|
95,605,000
|
|
|
|
| Fair Value |
|
|
|
102,128,000
|
|
| Mortgage Receivable [Member] | Forward Contracts [Member] | Fair Value, Recurring [Member] |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Derivative Asset, Subject to Master Netting Arrangement, Gross Liability and Collateral, Obligation to Return Cash, Offset |
|
0
|
|
0
|
|
| Mortgage Receivable [Member] | Forward Contracts [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Derivative assets |
|
0
|
|
0
|
|
| Mortgage Receivable [Member] | Forward Contracts [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Derivative assets |
|
7,000
|
|
6,000
|
|
| Derivative liabilities |
|
950,000
|
|
598,000
|
|
| Mortgage Receivable [Member] | Forward Contracts [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Derivative assets |
|
0
|
|
0
|
|
| Derivative liabilities |
|
0
|
|
|
|
| Estimate of Fair Value Measurement [Member] |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Trading securities |
|
113,575,000
|
|
119,676,000
|
|
| Derivative assets |
|
344,620,000
|
|
350,117,000
|
|
| Derivative liabilities |
|
7,032,000
|
|
1,994,000
|
|
| Fair Value |
|
20,595,928,000
|
|
18,189,327,000
|
|
| Estimate of Fair Value Measurement [Member] | Fair Value, Recurring [Member] |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Trading securities |
|
113,575,000
|
|
119,676,000
|
|
| AFS Securities |
|
20,595,928,000
|
|
18,189,327,000
|
|
| Derivative assets |
|
344,620,000
|
|
350,117,000
|
|
| Derivative liabilities |
|
7,032,000
|
|
1,994,000
|
|
| Total assets at fair value |
|
21,054,123,000
|
|
18,659,120,000
|
|
| Estimate of Fair Value Measurement [Member] | Fair Value, Nonrecurring [Member] |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Mortgage loans held for portfolio |
|
5,399,000
|
|
10,751,000
|
|
| REO - FV |
|
906,000
|
|
328,000
|
|
| Total assets at fair value |
|
6,305,000
|
|
11,079,000
|
|
| Estimate of Fair Value Measurement [Member] | Interest Rate Swap [Member] | Fair Value, Recurring [Member] |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Derivative assets |
|
344,613,000
|
|
350,111,000
|
|
| Derivative liabilities |
|
6,082,000
|
|
1,396,000
|
|
| Estimate of Fair Value Measurement [Member] | U.S. Treasury obligations | Fair Value, Recurring [Member] |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| AFS Securities |
|
5,105,478,000
|
|
4,912,280,000
|
|
| Estimate of Fair Value Measurement [Member] | GSE obligations | Fair Value, Recurring [Member] |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Trading securities |
|
113,575,000
|
|
119,676,000
|
|
| AFS Securities |
|
775,565,000
|
|
834,063,000
|
|
| Estimate of Fair Value Measurement [Member] | State or local agency obligations [Member] | Fair Value, Recurring [Member] |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| AFS Securities |
|
175,902,000
|
|
174,833,000
|
|
| Estimate of Fair Value Measurement [Member] | U.S. obligations single-family | Fair Value, Recurring [Member] |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| AFS Securities |
|
1,447,418,000
|
|
1,303,882,000
|
|
| Estimate of Fair Value Measurement [Member] | Private label MBS [Member] | Fair Value, Recurring [Member] |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| AFS Securities |
|
95,605,000
|
|
102,128,000
|
|
| Estimate of Fair Value Measurement [Member] | Mortgage Receivable [Member] | Forward Contracts [Member] | Fair Value, Recurring [Member] |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Derivative assets |
|
7,000
|
|
6,000
|
|
| Derivative liabilities |
|
950,000
|
|
598,000
|
|
| Single Family [Member] | GSE MBS [Member] |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Fair Value |
|
5,852,554,000
|
|
4,547,773,000
|
|
| Single Family [Member] | GSE MBS [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| AFS Securities |
|
0
|
|
|
|
| Fair Value |
|
|
|
0
|
|
| Single Family [Member] | GSE MBS [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| AFS Securities |
|
5,852,554,000
|
|
|
|
| Fair Value |
|
|
|
4,547,773,000
|
|
| Single Family [Member] | GSE MBS [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| AFS Securities |
|
0
|
|
|
|
| Single Family [Member] | Estimate of Fair Value Measurement [Member] | GSE MBS [Member] | Fair Value, Recurring [Member] |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| AFS Securities |
|
5,852,554,000
|
|
4,547,773,000
|
|
| Multifamily [Member] | GSE MBS [Member] |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| Fair Value |
|
7,143,406,000
|
|
6,314,368,000
|
|
| Multifamily [Member] | GSE MBS [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 1 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| AFS Securities |
|
0
|
|
|
|
| Fair Value |
|
|
|
0
|
|
| Multifamily [Member] | GSE MBS [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 2 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| AFS Securities |
|
7,143,406,000
|
|
|
|
| Fair Value |
|
|
|
6,314,368,000
|
|
| Multifamily [Member] | GSE MBS [Member] | Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| AFS Securities |
|
0
|
|
|
|
| Fair Value |
|
|
|
0
|
|
| Multifamily [Member] | Estimate of Fair Value Measurement [Member] | GSE MBS [Member] | Fair Value, Recurring [Member] |
|
|
|
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
|
| AFS Securities |
|
$ 7,143,406,000
|
|
$ 6,314,368,000
|
|
|
|