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Investments - Available for Sale Securities (Details) - USD ($)
$ in Thousands

Sep. 30, 2025

Dec. 31, 2024

Debt Securities, Available-for-sale [Line Items]

Less: loaned securities

$ 134,393

$ 139,121

Total fixed-maturities, available for sale, Amortized Cost

5,360,398

5,498,422

Total fixed-maturities available for sale, Fair Value

5,074,425

5,062,405

Total fixed-maturities available for sale

Debt Securities, Available-for-sale [Line Items]

Amortized Cost

5,457,615

5,635,504

Total fixed-maturities, available for sale, Amortized Cost

5,360,398

5,498,422

Gross Unrealized Gains

47,339

16,564

Gross Unrealized Losses

^[1]

(334,362)

(459,811)

Fair Value

5,170,592

5,192,257

Total fixed-maturities available for sale, Fair Value

5,074,425

5,062,405

U.S. government and agency securities

Debt Securities, Available-for-sale [Line Items]

Amortized Cost

149,659

151,955

Gross Unrealized Gains

163

0

Gross Unrealized Losses

(27,621)

(31,714)

Fair Value

122,201

120,241

State and municipal obligations

Debt Securities, Available-for-sale [Line Items]

Amortized Cost

185,638

166,114

Gross Unrealized Gains

1,558

40

Gross Unrealized Losses

(14,550)

(18,263)

Fair Value

172,646

147,891

Corporate bonds and notes

Debt Securities, Available-for-sale [Line Items]

Amortized Cost

2,764,029

2,876,060

Gross Unrealized Gains

26,859

5,261

Gross Unrealized Losses

(205,510)

(277,535)

Fair Value

2,585,378

2,603,786

RMBS

Debt Securities, Available-for-sale [Line Items]

Amortized Cost

1,027,209

1,104,708

Gross Unrealized Gains

10,591

6,965

Gross Unrealized Losses

(69,008)

(100,055)

Fair Value

968,792

1,011,618

CMBS

Debt Securities, Available-for-sale [Line Items]

Amortized Cost

295,853

437,314

Gross Unrealized Gains

184

51

Gross Unrealized Losses

(14,989)

(26,090)

Fair Value

281,048

411,275

CLO

Debt Securities, Available-for-sale [Line Items]

Amortized Cost

439,257

411,328

Gross Unrealized Gains

1,213

983

Gross Unrealized Losses

(295)

(849)

Fair Value

440,175

411,462

Other ABS

Debt Securities, Available-for-sale [Line Items]

Amortized Cost

550,586

442,578

Gross Unrealized Gains

5,819

1,555

Gross Unrealized Losses

(2,389)

(5,305)

Fair Value

554,016

438,828

Mortgage insurance-linked notes

Debt Securities, Available-for-sale [Line Items]

Amortized Cost

^[2]

45,384

45,447

Gross Unrealized Gains

^[2]

952

1,709

Gross Unrealized Losses

^[2]

0

0

Fair Value

^[2]

46,336

47,156

Loaned securities, amortized cost | Total fixed-maturities available for sale

Debt Securities, Available-for-sale [Line Items]

Less: loaned securities

^[3]

97,217

137,082

Loaned securities, fair value | Total fixed-maturities available for sale

Debt Securities, Available-for-sale [Line Items]

Less: loaned securities

^[3]

$ 96,167

$ 129,852

[1]	See “Gross Unrealized Losses and Related Fair Value of Available for Sale Securities” below for additional details.
[2]	Includes mortgage insurance-linked notes purchased by Radian Group in connection with the XOL Program. See Note 8 for more information.
[3]	Included in other assets on our condensed consolidated balance sheets. See “Loaned Securities” below for a discussion of our securities lending agreements.

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