Enact (ACT) 10-Q 2 Aug 24 2024 Q2 Quarterly report Financial data

Cover

Cover - shares	6 Months Ended
	Jun. 30, 2024	Jul. 31, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2024
Document Transition Report	false
Entity File Number	001-40399
Entity Registrant Name	Enact Holdings, Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	46-1579166
Entity Address, Address Line One	8325 Six Forks Road
Entity Address, City or Town	Raleigh
Entity Address, State or Province	NC
Entity Address, Postal Zip Code	27615
City Area Code	919
Local Phone Number	846-4100
Title of 12(b) Security	Common Stock, par value $0.01 per share
Trading Symbol	ACT
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		155,698,315
Entity Central Index Key	0001823529
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q2
Amendment Flag	false

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Assets
Fixed maturity securities available-for-sale, at fair value (amortized cost of $5,632,580 and $5,559,886 as of June 30, 2024, and December 31, 2023, respectively)	$ 5,331,345	$ 5,266,141
Short-term investments, at fair value	12,313	20,219
Total investments	5,343,658	5,286,360
Cash and cash equivalents	699,035	615,683
Accrued investment income	45,317	41,559
Deferred acquisition costs	24,619	25,006
Premiums receivable	48,698	45,070
Other assets	98,929	88,306
Deferred tax asset	89,116	88,489
Total assets	6,349,372	6,190,473
Liabilities:
Loss reserves	508,138	518,191
Unearned premiums	129,870	149,330
Other liabilities	143,167	145,189
Long-term borrowings	742,368	745,416
Total liabilities	1,523,543	1,558,126
Equity:
Common stock ($0.01 par value; 600,000 shares authorized; 156,111 shares issued and outstanding as of June 30, 2024, and 159,344 shares issued and outstanding as of December 31, 2023)	1,561	1,593
Additional paid-in capital	2,220,903	2,310,891
Accumulated other comprehensive income	(236,305)	(230,400)
Retained earnings	2,839,670	2,550,263
Total equity	4,825,829	4,632,347
Total liabilities and equity	$ 6,349,372	$ 6,190,473

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Statement of Financial Position [Abstract]
Amortized cost	$ 5,632,580	$ 5,559,886
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, authorized (in shares)	600,000	600,000
Common stock, issued (in shares)	156,111	159,344
Common stock, outstanding (in shares)	156,111	159,344

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Revenues:
Premiums	$ 244,567	$ 238,520	$ 485,314	$ 473,628
Net investment income	59,773	50,915	116,884	96,256
Net investment gains (losses)	(7,713)	(13,001)	(14,397)	(13,123)
Other income	2,207	1,088	2,609	1,700
Total revenues	298,834	277,522	590,410	558,461
Losses and expenses:
Losses incurred	(16,821)	(4,070)	2,680	(15,054)
Acquisition and operating expenses, net of deferrals	53,960	51,887	104,894	103,592
Amortization of deferred acquisition costs and intangibles	2,292	2,645	4,551	5,285
Interest expense	13,644	12,913	26,605	25,978
Gain (Loss) on Extinguishment of Debt	10,930	0	10,930	0
Total losses and expenses	64,005	63,375	149,660	119,801
Income before income taxes	234,829	214,147	440,750	438,660
Provision for income taxes	51,156	46,127	96,089	94,652
Net income	$ 183,673	$ 168,020	$ 344,661	$ 344,008
Net income per common share:
Basic (in usd per share)	$ 1.17	$ 1.04	$ 2.18	$ 2.13
Diluted (in usd per share)	$ 1.16	$ 1.04	$ 2.16	$ 2.11
Weighted average common shares outstanding:
Basic (in shares)	157,193	161,318	158,005	161,880
Diluted (in shares)	158,571	162,171	159,329	162,675

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Statement of Comprehensive Income [Abstract]
Net income	$ 183,673	$ 168,020	$ 344,661	$ 344,008
Other comprehensive income (loss), net of taxes:
Net unrealized gains (losses) on securities without an allowance for credit losses	1,172	(25,000)	(5,907)	37,510
Foreign currency translation gain (loss)	0	(1)	2	(9)
Other comprehensive income (loss)	1,172	(25,001)	(5,905)	37,501
Total comprehensive income (loss)	$ 184,845	$ 143,019	$ 338,756	$ 381,509

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Total	Common stock	Additional paid-in capital	Accumulated other comprehensive income (loss)	Retained earnings
Beginning balance at Dec. 31, 2022	$ 4,100,908	$ 1,628	$ 2,382,068	$ (382,744)	$ 2,099,956
Comprehensive income (loss):
Net income	344,008				344,008
Other comprehensive income (loss)	37,501			37,501
Repurchase of common stock	63,435	27	63,408
Stock-based compensation expense and exercises and other	5,372	1	5,867		(496)
Dividends	(48,458)				(48,458)
Ending balance at Jun. 30, 2023	4,375,896	1,602	2,324,527	(345,243)	2,395,010
Beginning balance at Mar. 31, 2023	4,296,621	1,619	2,362,281	(320,242)	2,252,963
Comprehensive income (loss):
Net income	168,020				168,020
Other comprehensive income (loss)	(25,001)			(25,001)
Repurchase of common stock	41,235	17	41,218
Stock-based compensation expense and exercises and other	3,193	0	3,464		(271)
Dividends	(25,702)				(25,702)
Ending balance at Jun. 30, 2023	4,375,896	1,602	2,324,527	(345,243)	2,395,010
Beginning balance at Dec. 31, 2023	4,632,347	1,593	2,310,891	(230,400)	2,550,263
Comprehensive income (loss):
Net income	344,661				344,661
Other comprehensive income (loss)	(5,905)			(5,905)
Repurchase of common stock	98,334	33	98,301
Stock-based compensation expense and exercises and other	7,600	1	8,313		(714)
Dividends	(54,540)				(54,540)
Ending balance at Jun. 30, 2024	4,825,829	1,561	2,220,903	(236,305)	2,839,670
Beginning balance at Mar. 31, 2024	4,713,764	1,577	2,264,198	(237,477)	2,685,466
Comprehensive income (loss):
Net income	183,673				183,673
Other comprehensive income (loss)	1,172			1,172
Repurchase of common stock	48,610	16	48,594
Stock-based compensation expense and exercises and other	4,913	0	5,299		(386)
Dividends	(29,083)				(29,083)
Ending balance at Jun. 30, 2024	$ 4,825,829	$ 1,561	$ 2,220,903	$ (236,305)	$ 2,839,670

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash flows from operating activities:
Net income	$ 344,661	$ 344,008
Adjustments to reconcile net income to net cash provided by operating activities:
Net investment (gains) losses	14,397	13,123
Amortization of fixed maturity securities discounts and premiums	(5,335)	(2,222)
Amortization of deferred acquisition costs and intangibles	4,551	5,285
Acquisition costs deferred	(2,878)	(3,238)
Deferred income taxes	955	(1,824)
Stock-based compensation expense	6,889	5,372
Amortization of debt issuance costs	1,272	1,270
Gain (Loss) on Extinguishment of Debt	10,930	0
Change in certain assets and liabilities:
Accrued investment income	(3,758)	(1,882)
Premiums receivable	(3,628)	(1,787)
Other assets	474	1,273
Loss reserves	(10,053)	(28,805)
Unearned premiums	(19,460)	(28,156)
Other liabilities	(7,021)	(15,232)
Net cash provided by operating activities	331,996	287,185
Cash flows from investing activities:
Purchases of fixed maturity securities available-for-sale	(725,137)	(599,050)
Purchase of equity interest	5,512	0
Proceeds from sales of fixed maturity securities available-for-sale	324,372	393,899
Proceeds from maturities of fixed maturity securities available-for-sale	325,359	220,782
Net change in short-term investments	7,906	(7,293)
Other	(8,255)	(5,989)
Net cash provided by (used in) investing activities	(81,267)	2,349
Cash flows from financing activities:
Net proceeds from the issuance of long-term debt	749,648	0
Debt issuance costs	(6,651)	0
Redemption of long-term debt	(757,500)	0
Repurchase of common stock	(98,334)	(63,435)
Dividends paid	(54,540)	(48,458)
Net cash used in financing activities	(167,377)	(111,893)
Net increase in cash and cash equivalents	83,352	177,641
Cash and cash equivalents at beginning of period	615,683	513,775
Cash and cash equivalents at end of period	$ 699,035	$ 691,416

Nature of business, organizatio

Nature of business, organization structure and basis of presentation	6 Months Ended
	Jun. 30, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of business, organization structure and basis of presentation	Nature of business, organization structure and basis of presentation The accompanying unaudited condensed consolidated financial statements include, on a consolidated basis, the accounts of Enact Holdings, Inc. (“EHI,” together with its subsidiaries, the “Company,” “we,” “us” or “our”) (formerly known as Genworth Mortgage Holdings, Inc.). EHI is a subsidiary of Genworth Financial, Inc. (“Genworth”) and has been since EHI’s incorporation in Delaware in 2012. In September 2021, we completed a minority initial public offering (“IPO”) of 18.4% of EHI’s common stock. We are engaged in the business of writing and assuming residential mortgage guaranty insurance. The insurance protects lenders and investors against certain losses resulting from nonpayment of loans secured by mortgages, deeds of trust, or other instruments constituting a lien on residential real estate. We offer private mortgage insurance products predominantly insuring prime-based, individually underwritten residential mortgage loans (“primary mortgage insurance”). Our primary mortgage insurance enables borrowers to buy homes with a down payment of less than 20% of the home’s value. Primary mortgage insurance also facilitates the sale of these low down payment mortgage loans in the secondary mortgage market, most of which are sold to government-sponsored enterprises. We also selectively enter into insurance transactions with lenders and investors, under which we insure a portfolio of loans at or after origination. We also perform fee-based contract underwriting services for mortgage lenders. The provision of underwriting services by mortgage insurers eliminates the duplicative lender and mortgage insurer underwriting activities and expedites the approval process. We operate our business through our primary insurance subsidiary, Enact Mortgage Insurance Corporation, (“EMICO”), formerly known as Genworth Mortgage Insurance Corporation, with operations in all 50 states and the District of Columbia. EMICO is an approved insurer by the Federal National Mortgage Association (“Fannie Mae”) and the Federal Home Loan Mortgage Corporation (“Freddie Mac”). Fannie Mae and Freddie Mac are government-sponsored enterprises, and we refer to them collectively as the “GSEs.” We also offer mortgage-related insurance and reinsurance through our wholly owned Bermuda-based subsidiary, Enact Re Ltd. ("Enact Re"). We contributed $500 million into Enact Re during 2023. As of June 30, 2024, Enact Re reinsured EMICO’s new and existing insurance in-force under quota share reinsurance agreements and invests in new business opportunities for Enact, including assumption of excess of loss reinsurance relating to GSE risk share. We operate our business in a single segment, which is how our chief operating decision maker (who is our Chief Executive Officer) reviews our financial performance and allocates resources. Our segment includes a run-off insurance block with reference properties in Mexico (“run-off business”), which is immaterial to our condensed consolidated financial statements.

Accounting changes

Accounting changes	6 Months Ended
	Jun. 30, 2024
Accounting Policies [Abstract]
Accounting changes	Accounting changes Accounting Pronouncements Recently Adopted We have not adopted new accounting pronouncements in 2024. Accounting Pronouncements Not Yet Adopted Segment Reporting In November 2023, the FASB released guidance under ASC 280 related to segment reporting disclosures. The update requires incremental disclosure around significant segment expenses, measures of segment profit or loss used by the chief operating decision maker (“CODM”) and the CODM’s use of these metrics. The guidance also requires segment disclosures for entities with a single reportable segment. This guidance is effective for us for annual reporting periods beginning on January 1, 2024 and interim reporting periods beginning on January 1, 2025 using the retrospective method, with early adoption permitted, which we do not intend to elect. The guidance will have no impact on our consolidated financial statements but will require expanded disclosures for the annual period ended December 31, 2024 and interim periods thereafter, which we are in the process of developing. We continue to evaluate the full impact the guidance will have on our processes and disclosures. Income Tax Disclosure In December 2023, the FASB issued new accounting guidance to improve income tax disclosures. The guidance requires annual disclosure of specific categories in the income tax rate reconciliation, separate disclosure of additional information related to reconciling items that meet a quantitative threshold and additional disclosures about income taxes paid, among other qualitative and quantitative disclosure improvements. This guidance is effective for us for annual reporting periods beginning on January 1, 2025 using the prospective method, with early adoption permitted, which we do not intend to elect. The guidance will have no impact on our consolidated financial statements but will require expanded annual disclosures. We are currently evaluating the impact the guidance may have on our processes, controls and disclosures.

Investments

Investments	6 Months Ended
	Jun. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Investments	Investments Net Investment Income Sources of net investment income were as follows for the periods indicated: Three months ended Six months ended (Amounts in thousands) 2024 2023 2024 2023 Fixed maturity securities available-for-sale $ 52,338 $ 44,542 $ 103,494 $ 85,917 Cash, cash equivalents and short-term investments 9,244 7,955 16,889 13,575 Gross investment income before expenses and fees 61,582 52,497 120,383 99,492 Investment expenses and fees (1,809) (1,582) (3,499) (3,236) Net investment income $ 59,773 $ 50,915 $ 116,884 $ 96,256 Net Investment Gains (Losses) The following table sets forth net investment gains (losses) for the periods indicated: Three months ended Six months ended (Amounts in thousands) 2024 2023 2024 2023 Fixed maturity securities available-for-sale: Gross realized gains $ 340 $ 20 $ 543 $ 20 Gross realized (losses) (8,064) (13,008) (14,940) (13,130) Net realized gains (losses) (7,724) (12,988) (14,397) (13,110) Net change in allowance for credit losses on commitment 11 (13) — (13) Net investment gains (losses) $ (7,713) $ (13,001) $ (14,397) $ (13,123) There was no allowance for credit losses recorded on fixed maturity securities classified as available-for-sale as of June 30, 2024, or December 31, 2023, or activity during the six months ended June 30, 2024. Unrealized Investment Gains (Losses) Net unrealized gains and losses on available-for-sale securities reflected as a separate component of accumulated other comprehensive income (“AOCI”) were as follows as of the dates indicated: (Amounts in thousands) June 30, 2024 December 31, 2023 Net unrealized gains (losses) on investment securities: Fixed maturity securities $ (301,235) $ (293,745) Income taxes 64,772 63,189 Net unrealized investment gains (losses) $ (236,463) $ (230,556) The change in net unrealized gains (losses) on available-for-sale securities reported in accumulated other comprehensive income was as follows as of and for the periods indicated: Three months ended (Amounts in thousands) 2024 2023 Beginning balance $ (237,635) $ (320,386) Unrealized gains (losses) arising during the period: Unrealized gains (losses) on investment securities (6,222) (44,767) Provision for income taxes 1,291 9,506 Change in unrealized gains (losses) on investment securities (4,931) (35,261) Reclassification adjustments to net investment (gains) losses, net of taxes of $(1,621) and $(2,727), respectively 6,103 10,261 Change in net unrealized investment gains (losses) 1,172 (25,000) Ending balance $ (236,463) $ (345,386) Six months ended (Amounts in thousands) 2024 2023 Beginning balance $ (230,556) $ (382,896) Unrealized gains (losses) arising during the period: Unrealized gains (losses) on investment securities (21,887) 34,599 Provision for income taxes 4,605 (7,446) Change in unrealized gains (losses) on investment securities (17,282) 27,153 Reclassification adjustments to net investment (gains) losses, net of taxes of $(3,022) and $(2,753), respectively 11,375 10,357 Change in net unrealized investment gains (losses) (5,907) 37,510 Ending balance $ (236,463) $ (345,386) Amounts reclassified out of accumulated other comprehensive income to net investment gains (losses) include realized gains (losses) on sales of securities, which are determined on a specific identification basis. Fixed Maturity Securities Available-For-Sale As of June 30, 2024, the amortized cost, gross unrealized gains (losses) and fair value of our investment securities were as follows: (Amounts in thousands) Amortized cost Gross unrealized gains Gross unrealized losses Fair value U.S. government, agencies and GSEs $ 305,921 $ 1,033 $ (3,411) $ 303,543 State and political subdivisions 509,631 1,472 (78,174) 432,929 Non-U.S. government 12,294 — (889) 11,405 U.S. corporate 2,789,729 9,828 (153,543) 2,646,014 Non-U.S. corporate 734,278 1,862 (39,567) 696,573 Residential mortgage-backed 9,443 31 (70) 9,404 Other asset-backed 1,271,284 3,201 (43,008) 1,231,477 Total fixed maturity securities available-for-sale $ 5,632,580 $ 17,427 $ (318,662) $ 5,331,345 Short-term investments 12,313 — — 12,313 Total investments $ 5,644,893 $ 17,427 $ (318,662) $ 5,343,658 As of December 31, 2023, the amortized cost, gross unrealized gains (losses) and fair value of our investment securities were as follows: (Amounts in thousands) Amortized cost Gross unrealized gains Gross unrealized losses Fair value U.S. government, agencies and GSEs $ 194,824 $ 1,196 $ (891) $ 195,129 State and political subdivisions 511,906 2,091 (75,783) 438,214 Non-U.S. government 12,338 16 (887) 11,467 U.S. corporate 2,858,445 19,839 (154,554) 2,723,730 Non-U.S. corporate 725,163 4,288 (39,788) 689,663 Residential mortgage-backed 10,781 38 (64) 10,755 Other asset-backed 1,246,429 2,848 (52,094) 1,197,183 Total fixed maturity securities available-for-sale $ 5,559,886 $ 30,316 $ (324,061) $ 5,266,141 Short-term investments 20,219 1 (1) 20,219 Total investments $ 5,580,105 $ 30,317 $ (324,062) $ 5,286,360 Gross Unrealized Losses and Fair Values of Fixed Maturity Securities Available-For-Sale The following table presents the gross unrealized losses and fair values of our fixed maturity securities for which an allowance for credit losses has not been recorded, aggregated by investment type and length of time that individual fixed maturity securities have been in a continuous unrealized loss position, as of June 30, 2024: Less than 12 months 12 months or more Total (Dollar amounts in thousands) Fair value Gross unrealized losses Number of securities Fair value Gross unrealized losses Number of securities Fair value Gross unrealized losses Number of securities Fixed maturity securities: U.S. government, agencies and GSEs $ 204,389 $ (2,616) 38 $ 33,807 $ (795) 14 $ 238,196 $ (3,411) 52 State and political subdivisions 5,784 (44) 4 401,211 (78,130) 85 406,995 (78,174) 89 Non-U.S. government 1,900 (5) 1 9,505 (884) 1 11,405 (889) 2 U.S. corporate 449,661 (7,267) 164 1,761,635 (146,276) 366 2,211,296 (153,543) 530 Non-U.S. corporate 122,550 (1,398) 38 468,772 (38,169) 104 591,322 (39,567) 142 Residential mortgage-backed 697 (3) 1 3,755 (67) 4 4,452 (70) 5 Other asset-backed 50,601 (219) 30 681,311 (42,789) 176 731,912 (43,008) 206 Total for fixed maturity securities in an unrealized loss position $ 835,582 $ (11,552) 276 $ 3,359,996 $ (307,110) 750 $ 4,195,578 $ (318,662) 1,026 We did not recognize an allowance for credit losses on securities in an unrealized loss position included in the table above. Based on a qualitative and quantitative review of the issuers of the securities, we believe the unrealized losses are largely due to changes in interest rates and recent market volatility and are not indicative of credit losses. The issuers continue to make timely principal and interest payments. For all securities in an unrealized loss position without an allowance for credit losses, we expect to recover the amortized cost based on our estimate of the amount and timing of cash flows to be collected. We do not intend to sell, nor do we expect that we will be required to sell these securities prior to recovering our amortized cost. The following table presents the gross unrealized losses and fair values of our fixed maturity securities, aggregated by investment type and length of time that individual fixed maturity securities have been in a continuous unrealized loss position, as of December 31, 2023: Less than 12 months 12 months or more Total (Dollar amounts in thousands) Fair value Gross unrealized losses Number of securities Fair value Gross unrealized losses Number of securities Fair value Gross unrealized losses Number of securities Fixed maturity securities: U.S. government, agencies and GSEs $ 6,259 $ (55) 3 $ 27,942 $ (836) 13 $ 34,201 $ (891) 16 State and political subdivisions 1,457 (3) 2 411,133 (75,780) 85 412,590 (75,783) 87 Non-U.S. government — — — 9,575 (887) 1 9,575 (887) 1 U.S. corporate 146,268 (4,236) 37 2,019,843 (150,318) 408 2,166,111 (154,554) 445 Non-U.S. corporate 19,369 (102) 5 521,442 (39,686) 121 540,811 (39,788) 126 Residential mortgage-backed 2,060 (2) 1 5,044 (62) 4 7,104 (64) 5 Other asset-backed 102,544 (424) 41 806,521 (51,670) 192 909,065 (52,094) 233 Total for fixed maturity securities in an unrealized loss position $ 277,957 $ (4,822) 89 $ 3,801,500 $ (319,239) 824 $ 4,079,457 $ (324,061) 913 Contractual Maturities of Fixed Maturity Securities Available-For-Sale The scheduled maturity distribution of fixed maturity securities as of June 30, 2024, is set forth below. Actual maturities may differ from contractual maturities because issuers of securities may have the right to call or prepay obligations with or without call or prepayment penalties. (Amounts in thousands) Amortized cost Fair value Due one year or less $ 438,073 $ 431,747 Due after one year through five years 1,882,169 1,768,507 Due after five years through ten years 1,790,226 1,663,696 Due after ten years 241,385 226,514 Subtotal 4,351,853 4,090,464 Residential mortgage-backed 9,443 9,404 Other asset-backed 1,271,284 1,231,477 Total fixed maturity securities available-for-sale $ 5,632,580 $ 5,331,345 As of June 30, 2024, securities issued by the finance and insurance, utilities, technology and communications, and consumer—non-cyclical industry groups represented approximately 33%, 12%, 12%, and 10%, respectively, of our domestic and foreign corporate fixed maturity securities portfolio. No other industry group comprised more than 9% of our investment portfolio. As of June 30, 2024, we did not hold any fixed maturity securities in any single issuer, other than securities issued or guaranteed by the U.S. government, which exceeded 10% of equity. As of June 30, 2024, and December 31, 2023, $26.4 million and $25.7 million, respectively, of securities in our portfolio were on deposit with various state insurance commissioners in order to comply with relevant insurance regulations. In connection with its reinsurance activities, the Company is required to maintain assets in trusts for the benefit of its contractual counterparties. The fair value of the assets on deposit in these trusts was $127.6 million as of June 30, 2024, and $77.9 million as of December 31, 2023.

Fair value

Fair value	6 Months Ended
	Jun. 30, 2024
Fair Value Disclosures [Abstract]
Fair value	Fair value Recurring fair value measurements We hold fixed maturity securities and short-term investments, which are carried at fair value. The fair value of fixed maturity securities and short-term investments are estimated primarily based on information derived from third-party pricing services (“pricing services”), internal models and/or broker quotes, which use a market approach, income approach or a combination of the market and income approach depending on the type of instrument and availability of information. In general, a market approach is utilized if there is readily available and relevant market activity for an individual security. In certain cases where market information is not available for a specific security but is available for similar securities, that security is valued using market information for similar securities, which is also a market approach. When market information is not available for a specific security (or similar securities) or is available but such information is less relevant or reliable, an income approach or a combination of a market and income approach is utilized. For securities with optionality, such as call or prepayment features (including asset-backed securities), an income or combination approach may be used. These valuation techniques may change from period to period, based on the relevance and availability of market data. Further, while we consider the valuations provided by pricing services and broker quotes to be of high quality, management determines the fair value of our investment securities after considering all relevant and available information. In general, we first obtain valuations from pricing services. If prices are unavailable for public securities, we obtain broker quotes. For all securities, excluding certain private fixed maturity securities, if neither a pricing service nor broker quotes valuation is available, we determine fair value using internal models. For certain private fixed maturity securities where we do not obtain valuations from pricing services, we utilize an internal model to determine fair value since transactions for similar securities are not readily observable and these securities are not typically valued by pricing services. Given our understanding of the pricing methodologies and procedures of pricing services, the securities valued by pricing services are typically classified as Level 2 unless we determine the valuation process for a security or group of securities utilizes significant unobservable inputs, which would result in the valuation being classified as Level 3. Broker quotes are typically based on an income approach given the lack of available market data. As the valuation typically includes significant unobservable inputs, we classify the securities where fair value is based on our consideration of broker quotes as Level 3 measurements. For private fixed maturity securities, we utilize an income approach where we obtain public bond spreads and utilize those in an internal model to determine fair value. Other inputs to the model include rating and weighted-average life, as well as sector which is used to assign the spread. We then add an additional premium, which represents an unobservable input, to the public bond spread to adjust for the liquidity and other features of our private placements. We utilize the estimated market yield to discount the expected cash flows of the security to determine fair value. We utilize price caps for securities where the estimated market yield results in a valuation that may exceed the amount that would be received in a market transaction. When a security does not have an external rating, we assign the security an internal rating to determine the appropriate public bond spread that should be utilized in the valuation. While we generally consider the public bond spreads by sector and maturity to be observable inputs, we evaluate the similarities of our private placement with the public bonds, any price caps utilized, liquidity premiums applied, and whether external ratings are available for our private placements to determine whether the spreads utilized would be considered observable inputs. We classify private securities without an external rating or public bond spread as Level 3. In general, a significant increase (decrease) in credit spreads would have resulted in a significant decrease (increase) in the fair value for our fixed maturity securities as of June 30, 2024. For remaining securities priced using internal models, we determine fair value using an income approach. We maximize the use of observable inputs but typically utilize significant unobservable inputs to determine fair value. Accordingly, the valuations are typically classified as Level 3. Our assessment of whether or not there were significant unobservable inputs related to fixed maturity securities was based on our observations obtained through the course of managing our investment portfolio, including interaction with other market participants, observations related to the availability and consistency of pricing and/or rating, and understanding of general market activity such as new issuance and the level of secondary market trading for a class of securities. Additionally, we considered data obtained from pricing services to determine whether our estimated values incorporate significant unobservable inputs that would result in the valuation being classified as Level 3. A summary of the inputs used for our fixed maturity securities and short-term investments based on the level in which instruments are classified is included below. We have combined certain classes of instruments together as the nature of the inputs is similar. Level 1 measurements There were no fixed maturity securities classified as Level 1 as of June 30, 2024, and December 31, 2023. Level 2 measurements Fixed maturity securities: Third-party pricing services In estimating the fair value of fixed maturity securities, approximately 89% of our portfolio was priced using third-party pricing services as of June 30, 2024. These pricing services utilize industry-standard valuation techniques that include market-based approaches, income-based approaches, a combination of market-based and income-based approaches or other proprietary, internally generated models as part of the valuation processes. These third-party pricing vendors maximize the use of publicly available data inputs to generate valuations for each asset class. Priority and type of inputs used may change frequently as certain inputs may be more direct drivers of valuation at the time of pricing. Examples of significant inputs incorporated by pricing services may include sector and issuer spreads, seasoning, capital structure, security optionality, collateral data, prepayment assumptions, default assumptions, delinquencies, debt covenants, benchmark yields, trade data, dealer quotes, credit ratings, maturity and weighted-average life. We conduct regular meetings with our pricing services for the purpose of understanding the methodologies, techniques and inputs used by the third-party pricing providers. The following table presents a summary of the significant inputs used by our pricing services for certain fair value measurements of fixed maturity securities that are classified as Level 2 as of June 30, 2024: (Amounts in thousands) Fair value Primary methodologies Significant inputs U.S. government, agencies and GSEs $ 303,543 Price quotes from trading desk, broker feeds Bid side prices, trade prices, Option Adjusted Spread (“OAS”) to swap curve, Bond Market Association OAS, Treasury Curve, Agency Bullet Curve, maturity to issuer spread State and political subdivisions $ 432,929 Multi-dimensional attribute-based modeling systems, third-party pricing vendors Trade prices, material event notices, Municipal Market Data benchmark yields, broker quotes Non-U.S. government $ 11,405 Matrix pricing, spread priced to benchmark curves, price quotes from market makers Benchmark yields, trade prices, broker quotes, comparative transactions, issuer spreads, bid-offer spread, market research publications, third-party pricing sources U.S. corporate $ 2,238,761 Multi-dimensional attribute-based modeling systems, broker quotes, price quotes from market makers, internal models, OAS-based models Bid side prices to Treasury Curve, Issuer Curve, which includes sector, quality, duration, OAS percentage and change for spread matrix, trade prices, comparative transactions, Trade Reporting and Compliance Engine (“TRACE”) reports Non-U.S. corporate $ 537,135 Multi-dimensional attribute-based modeling systems, OAS-based models, price quotes from market makers Benchmark yields, trade prices, broker quotes, comparative transactions, issuer spreads, bid-offer spread, market research publications, third-party pricing sources Residential mortgage-backed $ 9,404 OAS-based models, single factor binomial models, internally priced Prepayment and default assumptions, aggregation of bonds with similar characteristics, including collateral type, vintage, tranche type, weighted-average life, weighted-average loan age, issuer program and delinquency ratio, pay up and pay down factors, TRACE reports Other asset-backed $ 1,217,570 Multi-dimensional attribute-based modeling systems, spread matrix priced to swap curves, price quotes from market makers Spreads to daily updated swap curves, spreads derived from trade prices and broker quotes, bid side prices, new issue data, collateral performance, analysis of prepayment speeds, cash flows, collateral loss analytics, historical issue analysis, trade data from market makers, TRACE reports Internal models A portion of our Level 2 U.S. corporate and non-U.S. corporate securities are valued using internal models. The fair value of these fixed maturity securities was $169.8 million and $77.4 million, respectively, as of June 30, 2024. Internally modeled securities are primarily private fixed maturity securities where we use market observable inputs such as an interest rate yield curve, published credit spreads for similar securities based on the external ratings of the instrument and related industry sector of the issuer. Additionally, we may apply certain price caps and liquidity premiums in the valuation of private fixed maturity securities. Price caps and liquidity premiums are established using inputs from market participants. Short-term investments: The fair value of short-term investments classified as Level 2 is determined after considering prices obtained by pricing services. Level 3 measurements Broker quotes A portion of our non-U.S. corporate and other asset-backed securities are valued using broker quotes. Broker quotes are obtained from third-party providers that have current market knowledge to provide a reasonable price for securities not routinely priced by pricing services. Brokers utilized for valuation of assets are reviewed annually. The fair value of our Level 3 fixed maturity securities priced by broker quotes was $25.4 million as of June 30, 2024. Internal models A portion of our U.S. corporate and non-U.S. corporate securities are valued using internal models. The primary inputs to the valuation of the bond population include quoted prices for identical assets, or similar assets in markets that are not active, contractual cash flows, duration, call provisions, issuer rating, benchmark yields and credit spreads. Certain private fixed maturity securities are valued using an internal model using market observable inputs such as the interest rate yield curve, as well as published credit spreads for similar securities, which includes significant unobservable inputs. Additionally, we may apply certain price caps and liquidity premiums in the valuation of private fixed maturity securities. Price caps are established using inputs from market participants. For structured securities, the primary inputs to the valuation include quoted prices for identical assets, or similar assets in markets that are not active, contractual cash flows, weighted-average coupon, weighted-average maturity, issuer rating, structure of the security, expected prepayment speeds and volumes, collateral type, current and forecasted loss severity, average delinquency rates, vintage of the loans, geographic region, debt service coverage ratios, payment priority with the tranche, benchmark yields and credit spreads. The fair value of our Level 3 fixed maturity securities priced using internal models was $308.0 million as of June 30, 2024. The following tables set forth our assets by class of instrument that are measured at fair value on a recurring basis as of the dates indicated: June 30, 2024 (Amounts in thousands) Total Level 1 Level 2 Level 3 Fixed maturity securities: U.S. government, agencies and GSEs $ 303,543 $ — $ 303,543 $ — State and political subdivisions 432,929 — 432,929 — Non-U.S. government 11,405 — 11,405 — U.S. corporate 2,646,014 — 2,408,566 237,448 Non-U.S. corporate 696,573 — 614,520 82,053 Residential mortgage-backed 9,404 — 9,404 — Other asset-backed 1,231,477 — 1,217,570 13,907 Total fixed maturity securities 5,331,345 — 4,997,937 333,408 Short-term investments 12,313 — 12,313 — Total $ 5,343,658 $ — $ 5,010,250 $ 333,408 December 31, 2023 (Amounts in thousands) Total Level 1 Level 2 Level 3 Fixed maturity securities: U.S. government, agencies and GSEs $ 195,129 $ — $ 195,129 $ — State and political subdivisions 438,214 — 438,214 — Non-U.S. government 11,467 — 11,467 — U.S. corporate 2,723,730 — 2,476,525 247,205 Non-U.S. corporate 689,663 — 608,342 81,321 Residential mortgage-backed 10,755 — 10,755 — Other asset-backed 1,197,183 — 1,194,225 2,958 Total fixed maturity securities 5,266,141 — 4,934,657 331,484 Short-term investments 20,219 — 20,219 — Total $ 5,286,360 $ — $ 4,954,876 $ 331,484 We had no liabilities recorded at fair value as of June 30, 2024, and December 31, 2023. The following tables present additional information about assets measured at fair value on a recurring basis and for which we have utilized significant unobservable (Level 3) inputs to determine fair value as of or for the dates indicated: Beginning balance as of April 1, 2024 Total realized and unrealized gains (losses) Purchases Sales Settlements Transfer into Level 3 (1) Transfer out of Level 3 (1) Ending balance as of June 30, 2024 Total gains (losses) attributable to assets still held (Amounts in thousands) Included in net income Included in OCI Included in net income Included in OCI Fixed maturity securities: U.S. corporate $ 249,599 $ (352) $ (60) $ — $ (1,739) $ (10,000) $ — $ — $ 237,448 $ (8) $ (294) Non-U.S. corporate 80,554 9 (1,395) 6,000 (9) (3,106) — — 82,053 10 (1,404) Other asset-backed 4,791 9 (29) 12,999 — (271) — (3,592) 13,907 9 (12) Total $ 334,944 $ (334) $ (1,484) $ 18,999 $ (1,748) $ (13,377) $ — $ (3,592) $ 333,408 $ 11 $ (1,710) Beginning balance as of April 1, 2023 Total realized and unrealized gains (losses) Purchases Sales Settlements Transfer into Level 3 (1) Transfer out of Level 3 (1) Ending balance as of June 30, 2023 Total gains (losses) attributable to assets still held (Amounts in thousands) Included in net income Included in OCI Included in net income Included in OCI Fixed maturity securities: U.S. corporate $ 216,330 $ (8) $ (4,021) $ 18,000 $ — $ (8,000) $ — $ — $ 222,301 $ (7) $ (4,842) Non-U.S. corporate 74,131 8 (1,309) — — (106) — — 72,724 8 (1,310) Other asset-backed 984 2 (24) 9,991 — (1) — — 10,952 2 (24) Total $ 291,445 $ 2 $ (5,354) $ 27,991 $ — $ (8,107) $ — $ — $ 305,977 $ 3 $ (6,176) ______________ (1) The transfers into and out of Level 3 for fixed maturity securities were related to changes in the primary pricing source and changes in the observability of external information used in determining the fair value, such as external ratings or credit spreads. Beginning balance as of January 1, 2024 Total realized and unrealized gains (losses) Purchases Sales Settlements Transfer into Level 3 (1) Transfer out of Level 3 (1) Ending balance as of June 30, 2024 Total gains (losses) attributable to assets still held (Amounts in thousands) Included in net income Included in OCI Included in net income Included in OCI Fixed maturity securities: U.S. corporate $ 247,205 $ (359) $ (1,952) $ — $ (1,739) $ (10,358) $ 4,651 $ — $ 237,448 $ (15) $ (2,186) Non-U.S. corporate 81,321 16 (2,064) 6,000 (9) (3,211) — — 82,053 17 (2,073) Other asset-backed 2,958 17 9 16,934 — (331) — (5,680) 13,907 17 1 Total $ 331,484 $ (326) $ (4,007) $ 22,934 $ (1,748) $ (13,900) $ 4,651 $ (5,680) $ 333,408 $ 19 $ (4,258) (Amounts in thousands) Beginning balance as of January 1, 2023 Total realized and Purchases Sales Settlements Transfer into Level 3 (1) Transfer out of Level 3 (1) Ending balance as of June 30, 2023 Total gains Included Included Included in net income Included in OCI Fixed maturity securities: U.S. corporate $ 220,626 $ (21) $ 3 $ 21,000 $ (6,899) $ (12,408) $ — $ — $ 222,301 $ (16) $ (1,093) Non-U.S. corporate 95,154 (717) 1,458 3,759 (3,543) (23,387) — — 72,724 16 122 Other asset-backed 3,481 5 (10) 9,991 — (1) — (2,514) 10,952 5 (28) Total $ 319,261 $ (733) $ 1,451 $ 34,750 $ (10,442) $ (35,796) $ — $ (2,514) $ 305,977 $ 5 $ (999) ______________ (1) The transfers into and out of Level 3 for fixed maturity securities were related to changes in the primary pricing source and changes in the observability of external information used in determining the fair value, such as external ratings or credit spreads. Purchases, sales, and settlements represent the activity that occurred during the period that results in a change of the asset but does not represent changes in fair value for the instruments held at the beginning of the period. The amount presented for realized and unrealized gains (losses) included in net income for fixed maturity securities primarily represents amortization and accretion of premiums and discounts on certain fixed maturity securities recorded within net investment income. The following table presents a summary of the significant unobservable inputs used for certain asset fair value measurements that are based on internal models and classified as Level 3 as of June 30, 2024: (Amounts in thousands) Valuation technique Fair value (1) Unobservable input Range (bps) Weighted- average (2) (bps) Fixed maturity securities: U.S. corporate Internal models $ 237,448 Credit spreads 14 - 178 101 Non-U.S. corporate Internal models $ 70,558 Credit spreads 83 - 229 115 ______________ (1) Certain classes of instruments classified as Level 3 are excluded as a result of not being material or due to limitations in being able to obtain the underlying inputs used by certain third-party sources, such as broker quotes, used as an input in determining fair value. (2) Unobservable inputs weighted by the relative fair value of the associated instrument. We have certain financial instruments that are not recorded at fair value, including cash and cash equivalents and accrued investment income, the carrying value of which approximate fair value due to the short-term nature of these instruments and are not included in this disclosure. Liabilities not required to be carried at fair value The following represents our estimated fair value of financial liabilities that are not required to be carried at fair value, classified as Level 2, as of the dates indicated: June 30, 2024 December 31, 2023 (Amounts in thousands) Carrying amount Fair value Carrying amount Fair value Long-term borrowings $ 742,368 $ 749,880 $ 745,416 $ 748,785

Loss reserves

Loss reserves	6 Months Ended
	Jun. 30, 2024
Insurance [Abstract]
Loss reserves	Loss reserves Our reserve for losses and loss adjustment expenses (“LAE”) consisted of the following as of the dates indicated: (Amounts in thousands) June 30, 2024 December 31, 2023 Domestic mortgage insurance $ 506,710 $ 517,515 Run-off and other reserves 1,428 676 Total loss reserves $ 508,138 $ 518,191 Activity for the liability for domestic mortgage insurance loss reserves for the six months ended June 30, is summarized as follows: (Amounts in thousands) 2024 2023 Gross loss reserves, beginning balance $ 517,515 $ 518,330 Reinsurance recoverable, beginning balance (1,294) — Net loss reserves, beginning balance 516,221 518,330 Losses and LAE incurred related to current accident year 135,053 120,175 Losses and LAE incurred related to prior accident years (133,232) (135,366) Total incurred 1,821 (15,191) Losses and LAE paid related to current accident year 1,263 (359) Losses and LAE paid related to prior accident years (13,943) (13,689) Total paid (12,680) (14,048) Net loss reserves, ending balance 505,362 489,091 Reinsurance recoverable, ending balance 1,348 213 Gross loss reserves, ending balance $ 506,710 $ 489,304 The liability for loss reserves represents our current best estimate; however, there may be future adjustments to this estimate and related assumptions. Such adjustments, reflecting any variety of new and adverse trends, could possibly be significant, and result in future increases to reserves by amounts that could be material to our results of operations, financial condition and liquidity. Losses incurred related to insured events of the current accident year relate to defaults that occurred in that year and represent the estimated ultimate amount of losses to be paid on such defaults. Losses incurred related to insured events of prior accident years represent the (favorable) or unfavorable development of reserves as a result of the actual rates at which delinquencies go to claim (“claim rates”) and claim amounts being different than those we estimated when originally establishing the reserves. These estimates are based on our historical experience, which we believe is representative of expected future losses at the time of estimation. As a result of the extended period of time that may exist between the reporting of a delinquency and the claim payment, as well as changes in economic conditions and the real estate market, significant uncertainty and variability exist on amounts ultimately paid. For the six months ended June 30, 2024, losses and LAE incurred of $135 million related to insured events of the current accident year was primarily attributable to new delinquencies compared to $120 million for the six months ended June 30, 2023. We also recorded favorable reserve adjustments of $131 million primarily on prior accident year reserves, driven by cure performance of delinquencies from early 2023 and prior. As part of the reserve adjustments, we also decreased our claim rate assumptions for new and existing delinquencies as a result of sustained favorable cure performance and lessening uncertainty in the economic environment, which impacted reserves from current and prior accident years.

Reinsurance

Reinsurance	6 Months Ended
	Jun. 30, 2024
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Abstract]
Reinsurance	Reinsurance We reinsure a portion of our policy risks to third parties in order to reduce our ultimate losses, diversify our exposures and comply with regulatory requirements. We also assume certain policy risks written by other companies. Reinsurance does not relieve us from our obligations to policyholders. In the event that the reinsurers are unable to meet their obligations, we remain liable for the reinsured claims. We monitor both the financial condition of individual reinsurers and risk concentrations arising from similar geographic regions, activities and economic characteristics of reinsurers to lessen the risk of default by such reinsurers. The following table sets forth the effects of reinsurance on premiums written and earned for the periods indicated: Three months ended Six months ended (Amounts in thousands) 2024 2023 2024 2023 Net premiums written: Direct $ 259,265 $ 245,160 $ 514,425 $ 486,099 Assumed 3,460 256 5,031 315 Ceded (27,175) (21,015) (53,603) (40,942) Net premiums written $ 235,550 $ 224,401 $ 465,853 $ 445,472 Net premiums earned: Direct $ 268,282 $ 259,279 $ 533,886 $ 514,255 Assumed 3,460 256 5,031 315 Ceded (27,175) (21,015) (53,603) (40,942) Net premiums earned $ 244,567 $ 238,520 $ 485,314 $ 473,628 The difference between written premiums of $235.6 million and earned premiums of $244.6 million represents the decrease in unearned premiums for the three months ended June 30, 2024. The difference between written premiums of $465.9 million and earned premiums of $485.3 million represents the decrease in unearned premiums for the six months ended June 30, 2024. In both periods, the decrease in unearned premiums was primarily the result of premiums earned over time coupled with low originations of our single premium mortgage insurance product. Excess-of-loss reinsurance We engage in excess-of-loss (“XOL”) insurance transactions either through a panel of traditional reinsurance providers or through collateralized reinsurance with unaffiliated special purpose insurers (“Triangle Re Entities”). During the respective coverage periods of these agreements, EMICO retains the first layer of aggregate loss exposure on covered policies while the reinsurer provides the second layer of coverage, up to the defined reinsurance coverage amount. EMICO retains losses in excess of the respective reinsurance coverage amount. The Triangle Re Entities fully collateralize their coverage by issuing insurance-linked notes (“ILNs”) to eligible capital market investors in unregistered private offerings. Traditional reinsurance providers collateralize a portion of their coverage by holding funds in trust. We believe that the risk transfer requirements for reinsurance accounting were met as these XOL insurance transactions assume significant insurance risk and a reasonable possibility of significant loss. EMICO has rights to terminate the ILNs or traditional XOL reinsurance agreements upon the occurrence of certain events. The following table presents the issue date, policy dates, initial and current first layer retained aggregate loss and initial and current reinsurance coverage amount under each reinsurance transaction. Current amounts are presented as of June 30, 2024: Mortgage insurance-linked notes (Amounts in millions) Issue date Policy dates Initial first layer retained loss Current first layer retained loss Initial reinsurance coverage Current reinsurance coverage Triangle Re 2021-2 Ltd. 4/16/2021 9/01/2020 - 12/31/2020 $189 $188 $303 $149 Triangle Re 2021-3 Ltd. 9/02/2021 1/01/2021 - 6/30/2021 $304 $302 $372 $221 Triangle Re 2023-1 Ltd. 11/15/2023 7/01/2022 - 6/30/2023 $244 $244 $248 $248 Total $618 Traditional excess-of-loss reinsurance (Amounts in millions) Issue date Policy dates Initial first layer retained loss Current first layer retained loss Initial reinsurance coverage Current reinsurance coverage 2021 XOL 2/04/2021 1/01/2021 - 12/31/2021 $671 $668 $206 $107 2022-1 XOL 1/27/2022 1/01/2022 - 12/31/2022 $462 $459 $196 $181 2022-2 XOL 1/27/2022 1/01/2022 - 12/31/2022 $385 $382 $25 $25 2022-3 XOL 3/24/2022 7/01/2021 - 12/31/2021 $317 $315 $289 $194 2022-4 XOL 3/24/2022 7/01/2021 - 12/31/2021 $264 $262 $36 $36 2022-5 XOL 9/15/2022 1/01/2022 - 6/30/2022 $256 $255 $201 $165 2023-1 XOL 3/08/2023 1/01/2023 - 12/31/2023 $360 $360 $180 $180 2024-1 XOL 1/30/2024 1/01/2024 - 12/31/2024 $178 $178 $117 $117 2024-2 XOL 6/25/2024 7/01/2023-12/31/2023 $134 $134 $90 $90 Total $1,095 Quota Share Reinsurance EMICO engages in quota share reinsurance agreements with panels of traditional third-party reinsurers. Under the agreements, we cede premiums earned on all eligible policies in exchange for reimbursement of ceded claims and claims expenses on covered policies, a specific ceding commission and profit commission determined based on ceded claims. EMICO has rights to terminate the reinsurance agreements upon the occurrence of certain events. Reinsurance recoverables are recorded in Other assets on the consolidated balance sheets. Agreement Issue date Policy dates Ceding percentage Ceding commission Profit commission QS 2023-1 6/30/2023 1/01/2023 - 12/31/2023 16.125% 20% up to 55% QS 2024-1 1/03/2024 1/01/2024 - 12/31/2024 21.225% 20% up to 55%

Borrowings

Borrowings	6 Months Ended
	Jun. 30, 2024
Debt Disclosure [Abstract]
Borrowings	Borrowings In May 2024, we issued $750 million aggregate principal amount of Senior Notes due 2029 (the “2029 Notes”). The 2029 Notes are the Company’s unsecured senior obligations. The 2029 Notes pay interest semi-annually on May 28 and November 28 at a rate of 6.25% per year, beginning on November 28, 2024, and will mature on May 28, 2029. At any time, or from time to time, prior to April 28, 2029 (the “Par Call Date”), the Company may redeem the 2029 Notes in whole or in part, at its option, at a redemption price equal to the greater of (i) the sum of the present values of the remaining scheduled payments of principal and interest thereon discounted to the redemption date (assuming the 2029 Notes matured on the Par Call Date) on a semi-annual basis (assuming a 360-day year consisting of twelve 30-day months) at the Treasury Rate plus 30 basis points less interest accrued to the redemption date, and (ii) 100% of the principal amount of the 2029 Notes to be redeemed, plus, in either case, accrued and unpaid interest thereon to, but excluding, the redemption date. At any time on or after the Par Call Date, the Company may redeem the 2029 Notes in whole or in part, at any time and from time to time, at a redemption price equal to 100% of the principal amount of the 2029 Notes to be redeemed, plus accrued and unpaid interest thereon to, but excluding, the redemption date. The 2029 Notes contain customary events of default which, subject to certain notice and cure conditions, can result in the acceleration of the principal and accrued interest on the outstanding notes if we breach the terms of the indenture. The following table sets forth long-term borrowings as of the dates indicated: (Amounts in thousands) June 30, December 31, 6.25% Senior Notes, due 2029 $ 750,000 $ — 6.5% Senior Notes, due 2025 — 750,000 Deferred borrowing charges and discount (7,632) (4,584) Total $ 742,368 $ 745,416 Redemption of Senior Notes due 2025 In June 2024, we exercised our right to redeem all $750 million of the outstanding aggregate principal amount of our 6.5% senior notes due 2025 (“2025 Notes”) at a price of 101% of the principal amount. We funded the redemption primarily through the proceeds of the 2029 Notes. The redemption resulted in a loss on debt extinguishment of $10.9 million. Revolving Credit Agreement On June 30, 2022, we entered into a credit agreement with a syndicate of lenders that provides for a five-year, unsecured revolving credit facility (the “Facility”) in the initial aggregate principal amount of $200 million, including the ability for EHI to increase the commitments under the Facility, on an uncommitted basis, by an additional aggregate principal amount of up to $100 million. Borrowings under the Facility will accrue interest at a floating rate tied to a standard short-term borrowing index, selected at EHI’s option, plus an applicable margin. The applicable margins are based on the ratings established by certain debt rating agencies for EHI’s senior unsecured debt. The Facility matures in June 2027, but under certain conditions EHI may need to repay any outstanding amounts and terminate the Facility earlier than the maturity date.

Income taxes

Income taxes	6 Months Ended
	Jun. 30, 2024
Income Tax Disclosure [Abstract]
Income taxes	Income taxes

Related party transactions

Related party transactions	6 Months Ended
	Jun. 30, 2024
Related Party Transactions [Abstract]
Related party transactions	Related party transactions We have various agreements with Genworth that provide for reimbursement to and from Genworth of certain administrative and operating expenses that include, but are not limited to, information technology services and administrative services (such as finance, human resources and employee benefit administration). These agreements provide for an allocation of corporate expenses to all Genworth businesses or subsidiaries. We incurred costs for these services of $2.8 million and $4.5 million for the three months ended June 30, 2024 and 2023, respectively. We incurred costs for these services of $5.6 million and $9.2 million for the six months ended June 30, 2024 and 2023, respectively. The investment portfolios of our insurance subsidiaries are primarily managed by Genworth. Under the terms of the investment management agreement, we are charged a fee by Genworth. All fees paid to Genworth are charged to investment expense and are included in net investment income in the condensed consolidated statements of income. The total investment expenses paid to Genworth were $1.8 million and $1.7 million for the three months ended June 30, 2024 and 2023, respectively. The total investment expenses paid to Genworth were $3.3 million for each of the six months ended June 30, 2024 and 2023. Our employees participate in certain benefit plans sponsored by Genworth and certain share-based compensation plans that utilize shares of Genworth common stock and other incentive plans. In prior periods, we provided certain information technology and administrative services (such as facilities and maintenance) to Genworth. We charged Genworth $0.1 million for these services for the three months ended June 30, 2023, and $0.2 million for the six months ended June 30, 2023. We have a tax sharing agreement in place with Genworth, such that we participate in a single U.S. consolidated income tax return filing. All intercompany balances related to this agreement are settled at least annually. The condensed consolidated financial statements include the following amounts due to and from Genworth relating to recurring service and expense agreements as of: (Amounts in thousands) June 30, 2024 December 31, 2023 Amounts payable to Genworth $ 13,211 $ 8,186 Amounts receivable from Genworth $ 153 $ 215

Net income per common share

Net income per common share	6 Months Ended
	Jun. 30, 2024
Earnings Per Share [Abstract]
Net income per common share	Net income per common share The basic earnings per share computation is based on the weighted average number of shares of common stock outstanding. For the six months ended June 30, 2024 and 2023, the calculation of dilutive weighted average shares considers the impact of restricted stock units and performance stock units issued to employees, as well as deferred stock units issued to our directors. The calculation of basic and diluted net income per share is as follows: Three months ended Six months ended (Amounts in thousands, except per share amounts) 2024 2023 2024 2023 Net income available to EHI common stockholders $ 183,673 $ 168,020 $ 344,661 $ 344,008 Net income per common share: Basic $ 1.17 $ 1.04 $ 2.18 $ 2.13 Diluted $ 1.16 $ 1.04 $ 2.16 $ 2.11 Weighted average common shares outstanding: Basic 157,193 161,318 158,005 161,880 Diluted 158,571 162,171 159,329 162,675

Changes in accumulated other co

Changes in accumulated other comprehensive income	6 Months Ended
	Jun. 30, 2024
Equity [Abstract]
Changes in accumulated other comprehensive income	Changes in accumulated other comprehensive income The following tables present a roll forward of accumulated other comprehensive income for the three months indicated: (Amounts in thousands) Net unrealized Foreign currency translation Total Balance as of April 1, 2024, net of tax $ (237,635) $ 158 $ (237,477) Other comprehensive income (loss) before reclassifications (4,931) — (4,931) Amounts reclassified from other comprehensive income (loss) 6,103 — 6,103 Total other comprehensive income (loss) 1,172 — 1,172 Balance as of June 30, 2024, net of tax $ (236,463) $ 158 $ (236,305) (Amounts in thousands) Net unrealized Foreign currency translation Total Balance as of April 1, 2023, net of tax $ (320,386) $ 144 $ (320,242) Other comprehensive income (loss) before reclassifications (35,261) (1) (35,262) Amounts reclassified from other comprehensive income (loss) 10,261 — 10,261 Total other comprehensive income (loss) (25,000) (1) (25,001) Balance as of June 30, 2023, net of tax $ (345,386) $ 143 $ (345,243) The following tables present a roll forward of accumulated other comprehensive income for the six months indicated: (Amounts in thousands) Net unrealized investment gains (losses) Foreign currency translation Total Balance as of January 1, 2024, net of tax $ (230,556) $ 156 $ (230,400) Other comprehensive income (loss) before reclassifications (17,282) 2 (17,280) Amounts reclassified from other comprehensive income (loss) 11,375 — 11,375 Total other comprehensive income (loss) (5,907) 2 (5,905) Balance as of June 30, 2024, net of tax $ (236,463) $ 158 $ (236,305) (Amounts in thousands) Net unrealized Foreign currency translation Total Balance as of January 1, 2023, net of tax $ (382,896) $ 152 $ (382,744) Other comprehensive income (loss) before reclassifications 27,153 (9) 27,144 Amounts reclassified from other comprehensive income (loss) 10,357 — 10,357 Total other comprehensive income (loss) 37,510 (9) 37,501 Balance as of June 30, 2023, net of tax $ (345,386) $ 143 $ (345,243) The following table presents the effect of the reclassification of significant items out of accumulated other comprehensive income (loss) on the respective line items of the consolidated statements of income, for the periods indicated: Amounts reclassified from accumulated other comprehensive income (loss) Affected line item in the condensed consolidated statements of income Three months ended Six months ended (Amounts in thousands) 2024 2023 2024 2023 Net unrealized gains (losses) on investments $ (7,724) $ (12,988) $ (14,397) $ (13,110) Net investment gains (losses) Benefit (expense) from income taxes 1,621 2,727 3,022 2,753 Provision for income taxes

Stockholders' equity

Stockholders' equity	6 Months Ended
	Jun. 30, 2024
Equity [Abstract]
Stockholders' equity	Stockholders’ equity Share Repurchase Program On August 1, 2023, we announced the authorization of a new share repurchase program which allows for the repurchase of up to $100 million of EHI’s common stock. On May 1, 2024, we announced a new share repurchase authorization that allows for the purchase of an additional $250 million of EHI common stock. Under the program, share repurchases may be made at our discretion from time to time in open market transactions in compliance with Rule 10b-18 under the Securities Exchange Act of 1934, as amended, privately negotiated transactions, or by other means, including through Rule 10b5-1 trading plans. In conjunction with this authorization, we have entered into an agreement with Genworth Holdings, Inc. to repurchase its EHI shares on a pro rata basis as part of the program. The share repurchase program is not expected to materially change Genworth’s ownership interest in Enact post completion. We expect the timing and amount of any future share repurchases will be opportunistic and will depend on a variety of factors, including EHI’s share price, capital availability, business and market conditions, regulatory requirements, and debt covenant restrictions. The program does not obligate EHI to acquire any amount of common stock, it may be suspended or terminated at any time at the Company’s discretion without prior notice, and it does not have a specified expiration date. During the three months ended June 30, 2024, the Company purchased 1,601,419 shares at an average price of $30.43 per share, excluding commissions, compared to 1,705,169 shares at an average price of $24.13 per share during the three months ended June 30, 2023. During the six months ended June 30, 2024, the Company purchased 3,381,257 shares at an average price of $28.89 per share, excluding commissions, compared to 2,621,945 shares at an average price of $24.15 per share during the six months ended June 30, 2023. As of June 30, 2024, $238.2 million remained available under the share repurchase program. All treasury stock has been retired as of June 30, 2024. Subsequent to quarter end, the Company purchased 406,945 shares at an average price of $31.01 per share through July 31, 2024. Cash Dividends We paid a quarterly cash dividend of $0.185 per share in the second quarter of 2024 and $0.16 per share in the second quarter of 2023. We paid a quarterly cash dividend of $0.16 per share in the first quarter of 2024 and $0.14 per share in the first quarter of 2023.

Insider Trading Arrangements

Insider Trading Arrangements	3 Months Ended
	Jun. 30, 2024
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Accounting changes (Policies)

Accounting changes (Policies)	6 Months Ended
	Jun. 30, 2024
Accounting Policies [Abstract]
Accounting Pronouncements Recently Adopted and Accounting Pronouncements Not Yet Adopted	Accounting Pronouncements Recently Adopted We have not adopted new accounting pronouncements in 2024. Accounting Pronouncements Not Yet Adopted Segment Reporting In November 2023, the FASB released guidance under ASC 280 related to segment reporting disclosures. The update requires incremental disclosure around significant segment expenses, measures of segment profit or loss used by the chief operating decision maker (“CODM”) and the CODM’s use of these metrics. The guidance also requires segment disclosures for entities with a single reportable segment. This guidance is effective for us for annual reporting periods beginning on January 1, 2024 and interim reporting periods beginning on January 1, 2025 using the retrospective method, with early adoption permitted, which we do not intend to elect. The guidance will have no impact on our consolidated financial statements but will require expanded disclosures for the annual period ended December 31, 2024 and interim periods thereafter, which we are in the process of developing. We continue to evaluate the full impact the guidance will have on our processes and disclosures. Income Tax Disclosure In December 2023, the FASB issued new accounting guidance to improve income tax disclosures. The guidance requires annual disclosure of specific categories in the income tax rate reconciliation, separate disclosure of additional information related to reconciling items that meet a quantitative threshold and additional disclosures about income taxes paid, among other qualitative and quantitative disclosure improvements. This guidance is effective for us for annual reporting periods beginning on January 1, 2025 using the prospective method, with early adoption permitted, which we do not intend to elect. The guidance will have no impact on our consolidated financial statements but will require expanded annual disclosures. We are currently evaluating the impact the guidance may have on our processes, controls and disclosures.
Recurring fair value measurements	We hold fixed maturity securities and short-term investments, which are carried at fair value. The fair value of fixed maturity securities and short-term investments are estimated primarily based on information derived from third-party pricing services (“pricing services”), internal models and/or broker quotes, which use a market approach, income approach or a combination of the market and income approach depending on the type of instrument and availability of information. In general, a market approach is utilized if there is readily available and relevant market activity for an individual security. In certain cases where market information is not available for a specific security but is available for similar securities, that security is valued using market information for similar securities, which is also a market approach. When market information is not available for a specific security (or similar securities) or is available but such information is less relevant or reliable, an income approach or a combination of a market and income approach is utilized. For securities with optionality, such as call or prepayment features (including asset-backed securities), an income or combination approach may be used. These valuation techniques may change from period to period, based on the relevance and availability of market data. Further, while we consider the valuations provided by pricing services and broker quotes to be of high quality, management determines the fair value of our investment securities after considering all relevant and available information. In general, we first obtain valuations from pricing services. If prices are unavailable for public securities, we obtain broker quotes. For all securities, excluding certain private fixed maturity securities, if neither a pricing service nor broker quotes valuation is available, we determine fair value using internal models. For certain private fixed maturity securities where we do not obtain valuations from pricing services, we utilize an internal model to determine fair value since transactions for similar securities are not readily observable and these securities are not typically valued by pricing services. Given our understanding of the pricing methodologies and procedures of pricing services, the securities valued by pricing services are typically classified as Level 2 unless we determine the valuation process for a security or group of securities utilizes significant unobservable inputs, which would result in the valuation being classified as Level 3. Broker quotes are typically based on an income approach given the lack of available market data. As the valuation typically includes significant unobservable inputs, we classify the securities where fair value is based on our consideration of broker quotes as Level 3 measurements. For private fixed maturity securities, we utilize an income approach where we obtain public bond spreads and utilize those in an internal model to determine fair value. Other inputs to the model include rating and weighted-average life, as well as sector which is used to assign the spread. We then add an additional premium, which represents an unobservable input, to the public bond spread to adjust for the liquidity and other features of our private placements. We utilize the estimated market yield to discount the expected cash flows of the security to determine fair value. We utilize price caps for securities where the estimated market yield results in a valuation that may exceed the amount that would be received in a market transaction. When a security does not have an external rating, we assign the security an internal rating to determine the appropriate public bond spread that should be utilized in the valuation. While we generally consider the public bond spreads by sector and maturity to be observable inputs, we evaluate the similarities of our private placement with the public bonds, any price caps utilized, liquidity premiums applied, and whether external ratings are available for our private placements to determine whether the spreads utilized would be considered observable inputs. We classify private securities without an external rating or public bond spread as Level 3. In general, a significant increase (decrease) in credit spreads would have resulted in a significant decrease (increase) in the fair value for our fixed maturity securities as of June 30, 2024. For remaining securities priced using internal models, we determine fair value using an income approach. We maximize the use of observable inputs but typically utilize significant unobservable inputs to determine fair value. Accordingly, the valuations are typically classified as Level 3.

Investments (Tables)

Investments (Tables)	6 Months Ended
	Jun. 30, 2024
Investments, Debt and Equity Securities [Abstract]
Summary Investment Income	Sources of net investment income were as follows for the periods indicated: Three months ended Six months ended (Amounts in thousands) 2024 2023 2024 2023 Fixed maturity securities available-for-sale $ 52,338 $ 44,542 $ 103,494 $ 85,917 Cash, cash equivalents and short-term investments 9,244 7,955 16,889 13,575 Gross investment income before expenses and fees 61,582 52,497 120,383 99,492 Investment expenses and fees (1,809) (1,582) (3,499) (3,236) Net investment income $ 59,773 $ 50,915 $ 116,884 $ 96,256
Summary of Net Investment Gains (Losses)	The following table sets forth net investment gains (losses) for the periods indicated: Three months ended Six months ended (Amounts in thousands) 2024 2023 2024 2023 Fixed maturity securities available-for-sale: Gross realized gains $ 340 $ 20 $ 543 $ 20 Gross realized (losses) (8,064) (13,008) (14,940) (13,130) Net realized gains (losses) (7,724) (12,988) (14,397) (13,110) Net change in allowance for credit losses on commitment 11 (13) — (13) Net investment gains (losses) $ (7,713) $ (13,001) $ (14,397) $ (13,123)
Schedule of Unrealized Gain (Loss) on Investments	Net unrealized gains and losses on available-for-sale securities reflected as a separate component of accumulated other comprehensive income (“AOCI”) were as follows as of the dates indicated: (Amounts in thousands) June 30, 2024 December 31, 2023 Net unrealized gains (losses) on investment securities: Fixed maturity securities $ (301,235) $ (293,745) Income taxes 64,772 63,189 Net unrealized investment gains (losses) $ (236,463) $ (230,556) The change in net unrealized gains (losses) on available-for-sale securities reported in accumulated other comprehensive income was as follows as of and for the periods indicated: Three months ended (Amounts in thousands) 2024 2023 Beginning balance $ (237,635) $ (320,386) Unrealized gains (losses) arising during the period: Unrealized gains (losses) on investment securities (6,222) (44,767) Provision for income taxes 1,291 9,506 Change in unrealized gains (losses) on investment securities (4,931) (35,261) Reclassification adjustments to net investment (gains) losses, net of taxes of $(1,621) and $(2,727), respectively 6,103 10,261 Change in net unrealized investment gains (losses) 1,172 (25,000) Ending balance $ (236,463) $ (345,386) Six months ended (Amounts in thousands) 2024 2023 Beginning balance $ (230,556) $ (382,896) Unrealized gains (losses) arising during the period: Unrealized gains (losses) on investment securities (21,887) 34,599 Provision for income taxes 4,605 (7,446) Change in unrealized gains (losses) on investment securities (17,282) 27,153 Reclassification adjustments to net investment (gains) losses, net of taxes of $(3,022) and $(2,753), respectively 11,375 10,357 Change in net unrealized investment gains (losses) (5,907) 37,510 Ending balance $ (236,463) $ (345,386)
Summary of Fixed Maturity Securities Classified as Available-for-Sale	As of June 30, 2024, the amortized cost, gross unrealized gains (losses) and fair value of our investment securities were as follows: (Amounts in thousands) Amortized cost Gross unrealized gains Gross unrealized losses Fair value U.S. government, agencies and GSEs $ 305,921 $ 1,033 $ (3,411) $ 303,543 State and political subdivisions 509,631 1,472 (78,174) 432,929 Non-U.S. government 12,294 — (889) 11,405 U.S. corporate 2,789,729 9,828 (153,543) 2,646,014 Non-U.S. corporate 734,278 1,862 (39,567) 696,573 Residential mortgage-backed 9,443 31 (70) 9,404 Other asset-backed 1,271,284 3,201 (43,008) 1,231,477 Total fixed maturity securities available-for-sale $ 5,632,580 $ 17,427 $ (318,662) $ 5,331,345 Short-term investments 12,313 — — 12,313 Total investments $ 5,644,893 $ 17,427 $ (318,662) $ 5,343,658 As of December 31, 2023, the amortized cost, gross unrealized gains (losses) and fair value of our investment securities were as follows: (Amounts in thousands) Amortized cost Gross unrealized gains Gross unrealized losses Fair value U.S. government, agencies and GSEs $ 194,824 $ 1,196 $ (891) $ 195,129 State and political subdivisions 511,906 2,091 (75,783) 438,214 Non-U.S. government 12,338 16 (887) 11,467 U.S. corporate 2,858,445 19,839 (154,554) 2,723,730 Non-U.S. corporate 725,163 4,288 (39,788) 689,663 Residential mortgage-backed 10,781 38 (64) 10,755 Other asset-backed 1,246,429 2,848 (52,094) 1,197,183 Total fixed maturity securities available-for-sale $ 5,559,886 $ 30,316 $ (324,061) $ 5,266,141 Short-term investments 20,219 1 (1) 20,219 Total investments $ 5,580,105 $ 30,317 $ (324,062) $ 5,286,360
Schedule of Unrealized Losses and FV of Fixed Maturity Securities Available for Sale	The following table presents the gross unrealized losses and fair values of our fixed maturity securities for which an allowance for credit losses has not been recorded, aggregated by investment type and length of time that individual fixed maturity securities have been in a continuous unrealized loss position, as of June 30, 2024: Less than 12 months 12 months or more Total (Dollar amounts in thousands) Fair value Gross unrealized losses Number of securities Fair value Gross unrealized losses Number of securities Fair value Gross unrealized losses Number of securities Fixed maturity securities: U.S. government, agencies and GSEs $ 204,389 $ (2,616) 38 $ 33,807 $ (795) 14 $ 238,196 $ (3,411) 52 State and political subdivisions 5,784 (44) 4 401,211 (78,130) 85 406,995 (78,174) 89 Non-U.S. government 1,900 (5) 1 9,505 (884) 1 11,405 (889) 2 U.S. corporate 449,661 (7,267) 164 1,761,635 (146,276) 366 2,211,296 (153,543) 530 Non-U.S. corporate 122,550 (1,398) 38 468,772 (38,169) 104 591,322 (39,567) 142 Residential mortgage-backed 697 (3) 1 3,755 (67) 4 4,452 (70) 5 Other asset-backed 50,601 (219) 30 681,311 (42,789) 176 731,912 (43,008) 206 Total for fixed maturity securities in an unrealized loss position $ 835,582 $ (11,552) 276 $ 3,359,996 $ (307,110) 750 $ 4,195,578 $ (318,662) 1,026 The following table presents the gross unrealized losses and fair values of our fixed maturity securities, aggregated by investment type and length of time that individual fixed maturity securities have been in a continuous unrealized loss position, as of December 31, 2023: Less than 12 months 12 months or more Total (Dollar amounts in thousands) Fair value Gross unrealized losses Number of securities Fair value Gross unrealized losses Number of securities Fair value Gross unrealized losses Number of securities Fixed maturity securities: U.S. government, agencies and GSEs $ 6,259 $ (55) 3 $ 27,942 $ (836) 13 $ 34,201 $ (891) 16 State and political subdivisions 1,457 (3) 2 411,133 (75,780) 85 412,590 (75,783) 87 Non-U.S. government — — — 9,575 (887) 1 9,575 (887) 1 U.S. corporate 146,268 (4,236) 37 2,019,843 (150,318) 408 2,166,111 (154,554) 445 Non-U.S. corporate 19,369 (102) 5 521,442 (39,686) 121 540,811 (39,788) 126 Residential mortgage-backed 2,060 (2) 1 5,044 (62) 4 7,104 (64) 5 Other asset-backed 102,544 (424) 41 806,521 (51,670) 192 909,065 (52,094) 233 Total for fixed maturity securities in an unrealized loss position $ 277,957 $ (4,822) 89 $ 3,801,500 $ (319,239) 824 $ 4,079,457 $ (324,061) 913 The scheduled maturity distribution of fixed maturity securities as of June 30, 2024, is set forth below. Actual maturities may differ from contractual maturities because issuers of securities may have the right to call or prepay obligations with or without call or prepayment penalties. (Amounts in thousands) Amortized cost Fair value Due one year or less $ 438,073 $ 431,747 Due after one year through five years 1,882,169 1,768,507 Due after five years through ten years 1,790,226 1,663,696 Due after ten years 241,385 226,514 Subtotal 4,351,853 4,090,464 Residential mortgage-backed 9,443 9,404 Other asset-backed 1,271,284 1,231,477 Total fixed maturity securities available-for-sale $ 5,632,580 $ 5,331,345

Fair value (Tables)

Fair value (Tables)	6 Months Ended
	Jun. 30, 2024
Fair Value Disclosures [Abstract]
Summary of Significant Inputs used for Fair Value Measurement of Fixed Maturity Securities	The following table presents a summary of the significant inputs used by our pricing services for certain fair value measurements of fixed maturity securities that are classified as Level 2 as of June 30, 2024: (Amounts in thousands) Fair value Primary methodologies Significant inputs U.S. government, agencies and GSEs $ 303,543 Price quotes from trading desk, broker feeds Bid side prices, trade prices, Option Adjusted Spread (“OAS”) to swap curve, Bond Market Association OAS, Treasury Curve, Agency Bullet Curve, maturity to issuer spread State and political subdivisions $ 432,929 Multi-dimensional attribute-based modeling systems, third-party pricing vendors Trade prices, material event notices, Municipal Market Data benchmark yields, broker quotes Non-U.S. government $ 11,405 Matrix pricing, spread priced to benchmark curves, price quotes from market makers Benchmark yields, trade prices, broker quotes, comparative transactions, issuer spreads, bid-offer spread, market research publications, third-party pricing sources U.S. corporate $ 2,238,761 Multi-dimensional attribute-based modeling systems, broker quotes, price quotes from market makers, internal models, OAS-based models Bid side prices to Treasury Curve, Issuer Curve, which includes sector, quality, duration, OAS percentage and change for spread matrix, trade prices, comparative transactions, Trade Reporting and Compliance Engine (“TRACE”) reports Non-U.S. corporate $ 537,135 Multi-dimensional attribute-based modeling systems, OAS-based models, price quotes from market makers Benchmark yields, trade prices, broker quotes, comparative transactions, issuer spreads, bid-offer spread, market research publications, third-party pricing sources Residential mortgage-backed $ 9,404 OAS-based models, single factor binomial models, internally priced Prepayment and default assumptions, aggregation of bonds with similar characteristics, including collateral type, vintage, tranche type, weighted-average life, weighted-average loan age, issuer program and delinquency ratio, pay up and pay down factors, TRACE reports Other asset-backed $ 1,217,570 Multi-dimensional attribute-based modeling systems, spread matrix priced to swap curves, price quotes from market makers Spreads to daily updated swap curves, spreads derived from trade prices and broker quotes, bid side prices, new issue data, collateral performance, analysis of prepayment speeds, cash flows, collateral loss analytics, historical issue analysis, trade data from market makers, TRACE reports
Schedule of Fair Value Assets Measured on Recurring Basis	The following tables set forth our assets by class of instrument that are measured at fair value on a recurring basis as of the dates indicated: June 30, 2024 (Amounts in thousands) Total Level 1 Level 2 Level 3 Fixed maturity securities: U.S. government, agencies and GSEs $ 303,543 $ — $ 303,543 $ — State and political subdivisions 432,929 — 432,929 — Non-U.S. government 11,405 — 11,405 — U.S. corporate 2,646,014 — 2,408,566 237,448 Non-U.S. corporate 696,573 — 614,520 82,053 Residential mortgage-backed 9,404 — 9,404 — Other asset-backed 1,231,477 — 1,217,570 13,907 Total fixed maturity securities 5,331,345 — 4,997,937 333,408 Short-term investments 12,313 — 12,313 — Total $ 5,343,658 $ — $ 5,010,250 $ 333,408 December 31, 2023 (Amounts in thousands) Total Level 1 Level 2 Level 3 Fixed maturity securities: U.S. government, agencies and GSEs $ 195,129 $ — $ 195,129 $ — State and political subdivisions 438,214 — 438,214 — Non-U.S. government 11,467 — 11,467 — U.S. corporate 2,723,730 — 2,476,525 247,205 Non-U.S. corporate 689,663 — 608,342 81,321 Residential mortgage-backed 10,755 — 10,755 — Other asset-backed 1,197,183 — 1,194,225 2,958 Total fixed maturity securities 5,266,141 — 4,934,657 331,484 Short-term investments 20,219 — 20,219 — Total $ 5,286,360 $ — $ 4,954,876 $ 331,484
Schedule of Fair Value Assets Measured on Recurring Basis, Unobservable Input Reconciliation	The following tables present additional information about assets measured at fair value on a recurring basis and for which we have utilized significant unobservable (Level 3) inputs to determine fair value as of or for the dates indicated: Beginning balance as of April 1, 2024 Total realized and unrealized gains (losses) Purchases Sales Settlements Transfer into Level 3 (1) Transfer out of Level 3 (1) Ending balance as of June 30, 2024 Total gains (losses) attributable to assets still held (Amounts in thousands) Included in net income Included in OCI Included in net income Included in OCI Fixed maturity securities: U.S. corporate $ 249,599 $ (352) $ (60) $ — $ (1,739) $ (10,000) $ — $ — $ 237,448 $ (8) $ (294) Non-U.S. corporate 80,554 9 (1,395) 6,000 (9) (3,106) — — 82,053 10 (1,404) Other asset-backed 4,791 9 (29) 12,999 — (271) — (3,592) 13,907 9 (12) Total $ 334,944 $ (334) $ (1,484) $ 18,999 $ (1,748) $ (13,377) $ — $ (3,592) $ 333,408 $ 11 $ (1,710) Beginning balance as of April 1, 2023 Total realized and unrealized gains (losses) Purchases Sales Settlements Transfer into Level 3 (1) Transfer out of Level 3 (1) Ending balance as of June 30, 2023 Total gains (losses) attributable to assets still held (Amounts in thousands) Included in net income Included in OCI Included in net income Included in OCI Fixed maturity securities: U.S. corporate $ 216,330 $ (8) $ (4,021) $ 18,000 $ — $ (8,000) $ — $ — $ 222,301 $ (7) $ (4,842) Non-U.S. corporate 74,131 8 (1,309) — — (106) — — 72,724 8 (1,310) Other asset-backed 984 2 (24) 9,991 — (1) — — 10,952 2 (24) Total $ 291,445 $ 2 $ (5,354) $ 27,991 $ — $ (8,107) $ — $ — $ 305,977 $ 3 $ (6,176) ______________ (1) The transfers into and out of Level 3 for fixed maturity securities were related to changes in the primary pricing source and changes in the observability of external information used in determining the fair value, such as external ratings or credit spreads. Beginning balance as of January 1, 2024 Total realized and unrealized gains (losses) Purchases Sales Settlements Transfer into Level 3 (1) Transfer out of Level 3 (1) Ending balance as of June 30, 2024 Total gains (losses) attributable to assets still held (Amounts in thousands) Included in net income Included in OCI Included in net income Included in OCI Fixed maturity securities: U.S. corporate $ 247,205 $ (359) $ (1,952) $ — $ (1,739) $ (10,358) $ 4,651 $ — $ 237,448 $ (15) $ (2,186) Non-U.S. corporate 81,321 16 (2,064) 6,000 (9) (3,211) — — 82,053 17 (2,073) Other asset-backed 2,958 17 9 16,934 — (331) — (5,680) 13,907 17 1 Total $ 331,484 $ (326) $ (4,007) $ 22,934 $ (1,748) $ (13,900) $ 4,651 $ (5,680) $ 333,408 $ 19 $ (4,258) (Amounts in thousands) Beginning balance as of January 1, 2023 Total realized and Purchases Sales Settlements Transfer into Level 3 (1) Transfer out of Level 3 (1) Ending balance as of June 30, 2023 Total gains Included Included Included in net income Included in OCI Fixed maturity securities: U.S. corporate $ 220,626 $ (21) $ 3 $ 21,000 $ (6,899) $ (12,408) $ — $ — $ 222,301 $ (16) $ (1,093) Non-U.S. corporate 95,154 (717) 1,458 3,759 (3,543) (23,387) — — 72,724 16 122 Other asset-backed 3,481 5 (10) 9,991 — (1) — (2,514) 10,952 5 (28) Total $ 319,261 $ (733) $ 1,451 $ 34,750 $ (10,442) $ (35,796) $ — $ (2,514) $ 305,977 $ 5 $ (999) ______________ (1) The transfers into and out of Level 3 for fixed maturity securities were related to changes in the primary pricing source and changes in the observability of external information used in determining the fair value, such as external ratings or credit spreads. The following table presents a summary of the significant unobservable inputs used for certain asset fair value measurements that are based on internal models and classified as Level 3 as of June 30, 2024: (Amounts in thousands) Valuation technique Fair value (1) Unobservable input Range (bps) Weighted- average (2) (bps) Fixed maturity securities: U.S. corporate Internal models $ 237,448 Credit spreads 14 - 178 101 Non-U.S. corporate Internal models $ 70,558 Credit spreads 83 - 229 115 ______________ (1) Certain classes of instruments classified as Level 3 are excluded as a result of not being material or due to limitations in being able to obtain the underlying inputs used by certain third-party sources, such as broker quotes, used as an input in determining fair value. (2)
Schedule of Estimated Fair Value Liabilities	The following represents our estimated fair value of financial liabilities that are not required to be carried at fair value, classified as Level 2, as of the dates indicated: June 30, 2024 December 31, 2023 (Amounts in thousands) Carrying amount Fair value Carrying amount Fair value Long-term borrowings $ 742,368 $ 749,880 $ 745,416 $ 748,785

Loss reserves (Tables)

Loss reserves (Tables)	6 Months Ended
	Jun. 30, 2024
Insurance [Abstract]
Schedule Of Liability For Unpaid Claims And Claim Adjustment Expenses, By Segment	Our reserve for losses and loss adjustment expenses (“LAE”) consisted of the following as of the dates indicated: (Amounts in thousands) June 30, 2024 December 31, 2023 Domestic mortgage insurance $ 506,710 $ 517,515 Run-off and other reserves 1,428 676 Total loss reserves $ 508,138 $ 518,191
Schedule of Liability for Loss Reserves	Activity for the liability for domestic mortgage insurance loss reserves for the six months ended June 30, is summarized as follows: (Amounts in thousands) 2024 2023 Gross loss reserves, beginning balance $ 517,515 $ 518,330 Reinsurance recoverable, beginning balance (1,294) — Net loss reserves, beginning balance 516,221 518,330 Losses and LAE incurred related to current accident year 135,053 120,175 Losses and LAE incurred related to prior accident years (133,232) (135,366) Total incurred 1,821 (15,191) Losses and LAE paid related to current accident year 1,263 (359) Losses and LAE paid related to prior accident years (13,943) (13,689) Total paid (12,680) (14,048) Net loss reserves, ending balance 505,362 489,091 Reinsurance recoverable, ending balance 1,348 213 Gross loss reserves, ending balance $ 506,710 $ 489,304

Reinsurance (Tables)

Reinsurance (Tables)	6 Months Ended
	Jun. 30, 2024
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Abstract]
Effects of Reinsurance	The following table sets forth the effects of reinsurance on premiums written and earned for the periods indicated: Three months ended Six months ended (Amounts in thousands) 2024 2023 2024 2023 Net premiums written: Direct $ 259,265 $ 245,160 $ 514,425 $ 486,099 Assumed 3,460 256 5,031 315 Ceded (27,175) (21,015) (53,603) (40,942) Net premiums written $ 235,550 $ 224,401 $ 465,853 $ 445,472 Net premiums earned: Direct $ 268,282 $ 259,279 $ 533,886 $ 514,255 Assumed 3,460 256 5,031 315 Ceded (27,175) (21,015) (53,603) (40,942) Net premiums earned $ 244,567 $ 238,520 $ 485,314 $ 473,628
Schedule of Retained Aggregate Loss and Reinsurance Coverage	The following table presents the issue date, policy dates, initial and current first layer retained aggregate loss and initial and current reinsurance coverage amount under each reinsurance transaction. Current amounts are presented as of June 30, 2024: Mortgage insurance-linked notes (Amounts in millions) Issue date Policy dates Initial first layer retained loss Current first layer retained loss Initial reinsurance coverage Current reinsurance coverage Triangle Re 2021-2 Ltd. 4/16/2021 9/01/2020 - 12/31/2020 $189 $188 $303 $149 Triangle Re 2021-3 Ltd. 9/02/2021 1/01/2021 - 6/30/2021 $304 $302 $372 $221 Triangle Re 2023-1 Ltd. 11/15/2023 7/01/2022 - 6/30/2023 $244 $244 $248 $248 Total $618 Traditional excess-of-loss reinsurance (Amounts in millions) Issue date Policy dates Initial first layer retained loss Current first layer retained loss Initial reinsurance coverage Current reinsurance coverage 2021 XOL 2/04/2021 1/01/2021 - 12/31/2021 $671 $668 $206 $107 2022-1 XOL 1/27/2022 1/01/2022 - 12/31/2022 $462 $459 $196 $181 2022-2 XOL 1/27/2022 1/01/2022 - 12/31/2022 $385 $382 $25 $25 2022-3 XOL 3/24/2022 7/01/2021 - 12/31/2021 $317 $315 $289 $194 2022-4 XOL 3/24/2022 7/01/2021 - 12/31/2021 $264 $262 $36 $36 2022-5 XOL 9/15/2022 1/01/2022 - 6/30/2022 $256 $255 $201 $165 2023-1 XOL 3/08/2023 1/01/2023 - 12/31/2023 $360 $360 $180 $180 2024-1 XOL 1/30/2024 1/01/2024 - 12/31/2024 $178 $178 $117 $117 2024-2 XOL 6/25/2024 7/01/2023-12/31/2023 $134 $134 $90 $90 Total $1,095
Quota Share Reinsurance Ceding Percentage, Ceding Commission, And Profit Commission	EMICO has rights to terminate the reinsurance agreements upon the occurrence of certain events. Reinsurance recoverables are recorded in Other assets on the consolidated balance sheets. Agreement Issue date Policy dates Ceding percentage Ceding commission Profit commission QS 2023-1 6/30/2023 1/01/2023 - 12/31/2023 16.125% 20% up to 55% QS 2024-1 1/03/2024 1/01/2024 - 12/31/2024 21.225% 20% up to 55%

Borrowings (Tables)

Borrowings (Tables)	6 Months Ended
	Jun. 30, 2024
Debt Disclosure [Abstract]
Schedule of Long-term Borrowings	The following table sets forth long-term borrowings as of the dates indicated: (Amounts in thousands) June 30, December 31, 6.25% Senior Notes, due 2029 $ 750,000 $ — 6.5% Senior Notes, due 2025 — 750,000 Deferred borrowing charges and discount (7,632) (4,584) Total $ 742,368 $ 745,416

Related party transactions (Tab

Related party transactions (Tables)	6 Months Ended
	Jun. 30, 2024
Related Party Transactions [Abstract]
Schedule of Related Party Transactions	The condensed consolidated financial statements include the following amounts due to and from Genworth relating to recurring service and expense agreements as of: (Amounts in thousands) June 30, 2024 December 31, 2023 Amounts payable to Genworth $ 13,211 $ 8,186 Amounts receivable from Genworth $ 153 $ 215

Net income per common share (Ta

Net income per common share (Tables)	6 Months Ended
	Jun. 30, 2024
Earnings Per Share [Abstract]
Schedule of Basic and Diluted Net Income Per Share	The calculation of basic and diluted net income per share is as follows: Three months ended Six months ended (Amounts in thousands, except per share amounts) 2024 2023 2024 2023 Net income available to EHI common stockholders $ 183,673 $ 168,020 $ 344,661 $ 344,008 Net income per common share: Basic $ 1.17 $ 1.04 $ 2.18 $ 2.13 Diluted $ 1.16 $ 1.04 $ 2.16 $ 2.11 Weighted average common shares outstanding: Basic 157,193 161,318 158,005 161,880 Diluted 158,571 162,171 159,329 162,675

Changes in accumulated other _2

Changes in accumulated other comprehensive income (Tables)	6 Months Ended
	Jun. 30, 2024
Equity [Abstract]
Schedule of Accumulated Other Comprehensive Income (Loss)	The following tables present a roll forward of accumulated other comprehensive income for the three months indicated: (Amounts in thousands) Net unrealized Foreign currency translation Total Balance as of April 1, 2024, net of tax $ (237,635) $ 158 $ (237,477) Other comprehensive income (loss) before reclassifications (4,931) — (4,931) Amounts reclassified from other comprehensive income (loss) 6,103 — 6,103 Total other comprehensive income (loss) 1,172 — 1,172 Balance as of June 30, 2024, net of tax $ (236,463) $ 158 $ (236,305) (Amounts in thousands) Net unrealized Foreign currency translation Total Balance as of April 1, 2023, net of tax $ (320,386) $ 144 $ (320,242) Other comprehensive income (loss) before reclassifications (35,261) (1) (35,262) Amounts reclassified from other comprehensive income (loss) 10,261 — 10,261 Total other comprehensive income (loss) (25,000) (1) (25,001) Balance as of June 30, 2023, net of tax $ (345,386) $ 143 $ (345,243) The following tables present a roll forward of accumulated other comprehensive income for the six months indicated: (Amounts in thousands) Net unrealized investment gains (losses) Foreign currency translation Total Balance as of January 1, 2024, net of tax $ (230,556) $ 156 $ (230,400) Other comprehensive income (loss) before reclassifications (17,282) 2 (17,280) Amounts reclassified from other comprehensive income (loss) 11,375 — 11,375 Total other comprehensive income (loss) (5,907) 2 (5,905) Balance as of June 30, 2024, net of tax $ (236,463) $ 158 $ (236,305) (Amounts in thousands) Net unrealized Foreign currency translation Total Balance as of January 1, 2023, net of tax $ (382,896) $ 152 $ (382,744) Other comprehensive income (loss) before reclassifications 27,153 (9) 27,144 Amounts reclassified from other comprehensive income (loss) 10,357 — 10,357 Total other comprehensive income (loss) 37,510 (9) 37,501 Balance as of June 30, 2023, net of tax $ (345,386) $ 143 $ (345,243)
Reclassification out of Accumulated Other Comprehensive Income	The following table presents the effect of the reclassification of significant items out of accumulated other comprehensive income (loss) on the respective line items of the consolidated statements of income, for the periods indicated: Amounts reclassified from accumulated other comprehensive income (loss) Affected line item in the condensed consolidated statements of income Three months ended Six months ended (Amounts in thousands) 2024 2023 2024 2023 Net unrealized gains (losses) on investments $ (7,724) $ (12,988) $ (14,397) $ (13,110) Net investment gains (losses) Benefit (expense) from income taxes 1,621 2,727 3,022 2,753 Provision for income taxes

Nature of business, organizat_2

Nature of business, organization structure and basis of presentation (Details) $ in Thousands	1 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2023 USD ($)	Jun. 30, 2024 state
Equity, Class of Treasury Stock [Line Items]
Number of states in which entity operates | state			50
Enact Re Ltd
Equity, Class of Treasury Stock [Line Items]
Payments of Distributions to Affiliates | $		$ 500,000
IPO
Equity, Class of Treasury Stock [Line Items]
Minority initial public offering, percentage	18.40%

Investments - Net Investment In

Investments - Net Investment Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Net Investment Income [Line Items]
Gross investment income before expenses and fees	$ 61,582	$ 52,497	$ 120,383	$ 99,492
Investment expenses and fees	(1,809)	(1,582)	(3,499)	(3,236)
Net investment income	59,773	50,915	116,884	96,256
Fixed maturity securities available-for-sale
Net Investment Income [Line Items]
Gross investment income before expenses and fees	52,338	44,542	103,494	85,917
Cash, cash equivalents and short-term investments
Net Investment Income [Line Items]
Gross investment income before expenses and fees	$ 9,244	$ 7,955	$ 16,889	$ 13,575

Investments - Net Investment Ga

Investments - Net Investment Gains (Losses) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Fixed maturity securities available-for-sale:
Gross realized gains	$ 340	$ 20	$ 543	$ 20
Gross realized (losses)	(8,064)	(13,008)	(14,940)	(13,130)
Net realized gains (losses)	(7,724)	(12,988)	(14,397)	(13,110)
Net change in allowance for credit losses on commitment	11	(13)	0	(13)
Net investment gains (losses)	$ (7,713)	$ (13,001)	$ (14,397)	$ (13,123)

Investments - Net Unrealized Ga

Investments - Net Unrealized Gains and Losses on Available-for-Sale Securities as a Separate Component of OCI (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Net Investment Income [Line Items]
Income taxes	$ 64,772	$ 63,189
Net unrealized investment gains (losses)	(236,463)	(230,556)
Fixed maturity securities
Net Investment Income [Line Items]
Unrealized gains (losses) on investment securities	$ (301,235)	$ (293,745)

Investments - Change in Net Unr

Investments - Change in Net Unrealized Gains (Losses) on Available-for-Sale Securities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Debt Securities, Available-for-sale, Unrealized Gain (Loss) [Roll Forward]
Beginning balance	$ 4,713,764	$ 4,296,621	$ 4,632,347	$ 4,100,908
Change in net unrealized investment gains (losses)	1,172	(25,000)	(5,907)	37,510
Ending balance	4,825,829	4,375,896	4,825,829	4,375,896
Reclassification adjustments to net investment (gains) losses, tax	(1,621)	(2,727)	(3,022)	(2,753)
Amounts reclassified from accumulated other comprehensive income (loss)
Debt Securities, Available-for-sale, Unrealized Gain (Loss) [Roll Forward]
Beginning balance	(237,635)	(320,386)	(230,556)	(382,896)
Unrealized gains (losses) on investment securities	(6,222)	(44,767)	(21,887)	34,599
Provision for income taxes	1,291	9,506	4,605	(7,446)
Change in unrealized gains (losses) on investment securities	(4,931)	(35,261)	(17,282)	27,153
Reclassification adjustments to net investment (gains) losses, net of taxes of $(1,621) and $(2,727), respectively	6,103	10,261	11,375	10,357
Change in net unrealized investment gains (losses)	1,172	(25,000)	(5,907)	37,510
Ending balance	$ (236,463)	$ (345,386)	$ (236,463)	$ (345,386)

Investments - Summary of Fixed

Investments - Summary of Fixed Maturity Securities Classified as Available-for-Sale (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Amortized cost	$ 5,632,580	$ 5,559,886
Gross unrealized gains	17,427	30,316
Gross unrealized losses	(318,662)	(324,061)
Fair value	5,331,345	5,266,141
Total investments
Debt Securities, Available-for-sale [Line Items]
Amortized cost	5,644,893	5,580,105
Gross unrealized gains	17,427	30,317
Gross unrealized losses	(318,662)	(324,062)
Fair value	5,343,658	5,286,360
U.S. government, agencies and GSEs
Debt Securities, Available-for-sale [Line Items]
Amortized cost	305,921	194,824
Gross unrealized gains	1,033	1,196
Gross unrealized losses	(3,411)	(891)
Fair value	303,543	195,129
State and political subdivisions
Debt Securities, Available-for-sale [Line Items]
Amortized cost	509,631	511,906
Gross unrealized gains	1,472	2,091
Gross unrealized losses	(78,174)	(75,783)
Fair value	432,929	438,214
Non-U.S. government
Debt Securities, Available-for-sale [Line Items]
Amortized cost	12,294	12,338
Gross unrealized gains	0	16
Gross unrealized losses	(889)	(887)
Fair value	11,405	11,467
U.S. corporate
Debt Securities, Available-for-sale [Line Items]
Amortized cost	2,789,729	2,858,445
Gross unrealized gains	9,828	19,839
Gross unrealized losses	(153,543)	(154,554)
Fair value	2,646,014	2,723,730
Non-U.S. corporate
Debt Securities, Available-for-sale [Line Items]
Amortized cost	734,278	725,163
Gross unrealized gains	1,862	4,288
Gross unrealized losses	(39,567)	(39,788)
Fair value	696,573	689,663
Residential mortgage-backed
Debt Securities, Available-for-sale [Line Items]
Amortized cost	9,443	10,781
Gross unrealized gains	31	38
Gross unrealized losses	(70)	(64)
Fair value	9,404	10,755
Other asset-backed
Debt Securities, Available-for-sale [Line Items]
Amortized cost	1,271,284	1,246,429
Gross unrealized gains	3,201	2,848
Gross unrealized losses	(43,008)	(52,094)
Fair value	1,231,477	1,197,183
Short-term investments
Debt Securities, Available-for-sale [Line Items]
Amortized cost	12,313	20,219
Gross unrealized gains	0	1
Gross unrealized losses	0	(1)
Fair value	$ 12,313	$ 20,219

Investments - Schedule of Fixed

Investments - Schedule of Fixed Maturity Securities in a Continuous Unrealized Loss Position (Details) $ in Thousands	Jun. 30, 2024 USD ($) security	Dec. 31, 2023 USD ($) security
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 months, Fair value	$ 835,582	$ 277,957
Less than 12 months, Gross unrealized losses	$ (11,552)	$ (4,822)
Less than 12 months, Number of securities | security	276	89
12 months or more, Fair value	$ 3,359,996	$ 3,801,500
12 months or more, Gross unrealized losses	$ (307,110)	$ (319,239)
12 months or more, Number of securities | security	750	824
Fair value	$ 4,195,578	$ 4,079,457
Gross unrealized losses	$ (318,662)	$ (324,061)
Number of securities | security	1,026	913
U.S. government, agencies and GSEs
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 months, Fair value	$ 204,389	$ 6,259
Less than 12 months, Gross unrealized losses	$ (2,616)	$ (55)
Less than 12 months, Number of securities | security	38	3
12 months or more, Fair value	$ 33,807	$ 27,942
12 months or more, Gross unrealized losses	$ (795)	$ (836)
12 months or more, Number of securities | security	14	13
Fair value	$ 238,196	$ 34,201
Gross unrealized losses	$ (3,411)	$ (891)
Number of securities | security	52	16
State and political subdivisions
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 months, Fair value	$ 5,784	$ 1,457
Less than 12 months, Gross unrealized losses	$ (44)	$ (3)
Less than 12 months, Number of securities | security	4	2
12 months or more, Fair value	$ 401,211	$ 411,133
12 months or more, Gross unrealized losses	$ (78,130)	$ (75,780)
12 months or more, Number of securities | security	85	85
Fair value	$ 406,995	$ 412,590
Gross unrealized losses	$ (78,174)	$ (75,783)
Number of securities | security	89	87
Non-U.S. government
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 months, Fair value	$ 1,900	$ 0
Less than 12 months, Gross unrealized losses	$ (5)	$ 0
Less than 12 months, Number of securities | security	1	0
12 months or more, Fair value	$ 9,505	$ 9,575
12 months or more, Gross unrealized losses	$ (884)	$ (887)
12 months or more, Number of securities | security	1	1
Fair value	$ 11,405	$ 9,575
Gross unrealized losses	$ (889)	$ (887)
Number of securities | security	2	1
U.S. corporate
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 months, Fair value	$ 449,661	$ 146,268
Less than 12 months, Gross unrealized losses	$ (7,267)	$ (4,236)
Less than 12 months, Number of securities | security	164	37
12 months or more, Fair value	$ 1,761,635	$ 2,019,843
12 months or more, Gross unrealized losses	$ (146,276)	$ (150,318)
12 months or more, Number of securities | security	366	408
Fair value	$ 2,211,296	$ 2,166,111
Gross unrealized losses	$ (153,543)	$ (154,554)
Number of securities | security	530	445
Non-U.S. corporate
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 months, Fair value	$ 122,550	$ 19,369
Less than 12 months, Gross unrealized losses	$ (1,398)	$ (102)
Less than 12 months, Number of securities | security	38	5
12 months or more, Fair value	$ 468,772	$ 521,442
12 months or more, Gross unrealized losses	$ (38,169)	$ (39,686)
12 months or more, Number of securities | security	104	121
Fair value	$ 591,322	$ 540,811
Gross unrealized losses	$ (39,567)	$ (39,788)
Number of securities | security	142	126
Residential mortgage-backed
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 months, Fair value	$ 697	$ 2,060
Less than 12 months, Gross unrealized losses	$ (3)	$ (2)
Less than 12 months, Number of securities | security	1	1
12 months or more, Fair value	$ 3,755	$ 5,044
12 months or more, Gross unrealized losses	$ (67)	$ (62)
12 months or more, Number of securities | security	4	4
Fair value	$ 4,452	$ 7,104
Gross unrealized losses	$ (70)	$ (64)
Number of securities | security	5	5
Other asset-backed
Debt Securities, Available-for-sale, Unrealized Loss Position, Accumulated Loss [Abstract]
Less than 12 months, Fair value	$ 50,601	$ 102,544
Less than 12 months, Gross unrealized losses	$ (219)	$ (424)
Less than 12 months, Number of securities | security	30	41
12 months or more, Fair value	$ 681,311	$ 806,521
12 months or more, Gross unrealized losses	$ (42,789)	$ (51,670)
12 months or more, Number of securities | security	176	192
Fair value	$ 731,912	$ 909,065
Gross unrealized losses	$ (43,008)	$ (52,094)
Number of securities | security	206	233

Investments - Summary of Contra

Investments - Summary of Contractual Maturities of Fixed Maturity Securities Available-For-Sale (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Amortized cost
Due one year or less	$ 438,073
Due after one year through five years	1,882,169
Due after five years through ten years	1,790,226
Due after ten years	241,385
Subtotal	4,351,853
Amortized cost	5,632,580	$ 5,559,886
Fair value
Due one year or less	431,747
Due after one year through five years	1,768,507
Due after five years through ten years	1,663,696
Due after ten years	226,514
Subtotal	4,090,464
Fair value	5,331,345	5,266,141
Residential mortgage-backed
Amortized cost
Residential mortgage-backed and other asset-backed, amortization	9,443
Amortized cost	9,443	10,781
Fair value
Residential mortgage-backed and other asset-backed, fair value	9,404
Fair value	9,404	10,755
Other asset-backed
Amortized cost
Residential mortgage-backed and other asset-backed, amortization	1,271,284
Amortized cost	1,271,284	1,246,429
Fair value
Residential mortgage-backed and other asset-backed, fair value	1,231,477
Fair value	$ 1,231,477	$ 1,197,183

Investments - Narrative (Detail

Investments - Narrative (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Asset, held-in-Trust	$ 127,600	$ 77,900
Limited Partnership
Debt Securities, Available-for-sale [Line Items]
Purchase obligation, term	10 years
Purchase obligation, purchases	$ 0
Purchase obligation	10,000
Deposits
Debt Securities, Available-for-sale [Line Items]
Assets held by insurance regulators	$ 26,400	$ 25,700
Financial Services Sector
Debt Securities, Available-for-sale [Line Items]
Fixed maturity securities portfolio, percentage	33%
Technology And Communications Sector
Debt Securities, Available-for-sale [Line Items]
Fixed maturity securities portfolio, percentage	12%
Non-Cyclical Consumer Sector
Debt Securities, Available-for-sale [Line Items]
Fixed maturity securities portfolio, percentage	10%
Utilities Industry Group
Debt Securities, Available-for-sale [Line Items]
Fixed maturity securities portfolio, percentage	12%

Fair value - Narrative (Details

Fair value - Narrative (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	$ 5,331,345	$ 5,266,141
U.S. corporate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	2,646,014	2,723,730
Non-U.S. corporate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	696,573	689,663
Fair value, recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	5,331,345	5,266,141
Liabilities, fair value	0	0
Fair value, recurring | U.S. corporate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	2,646,014	2,723,730
Fair value, recurring | Non-U.S. corporate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	696,573	689,663
Level 1 | Fair value, recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	0	0
Level 1 | Fair value, recurring | U.S. corporate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	0	0
Level 1 | Fair value, recurring | Non-U.S. corporate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	0	0
Level 2 | Fair value, recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	$ 4,997,937	4,934,657
Percentage of portfolio priced using third-party pricing services	89%
Level 2 | Fair value, recurring | U.S. corporate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	$ 2,408,566	2,476,525
Level 2 | Fair value, recurring | U.S. corporate | Internal models
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	169,800
Level 2 | Fair value, recurring | Non-U.S. corporate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	614,520	608,342
Level 2 | Fair value, recurring | Non-U.S. corporate | Internal models
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	77,400
Level 3  | Fair value, recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	333,408	331,484
Level 3  | Fair value, recurring | Internal models
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	308,000
Level 3  | Fair value, recurring | Valuation technique, broker quotes
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	25,400
Level 3  | Fair value, recurring | U.S. corporate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	237,448	247,205
Level 3  | Fair value, recurring | U.S. corporate | Internal models
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	237,448
Level 3  | Fair value, recurring | Non-U.S. corporate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	82,053	$ 81,321
Level 3  | Fair value, recurring | Non-U.S. corporate | Internal models
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	$ 70,558

Fair value - Summary of Signifi

Fair value - Summary of Significant Inputs used for Fair Value Measurement of Fixed Maturity Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	$ 5,331,345	$ 5,266,141
State and political subdivisions
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	432,929	438,214
Non-U.S. government
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	11,405	11,467
U.S. corporate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	2,646,014	2,723,730
Non-U.S. corporate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	696,573	689,663
Residential mortgage-backed
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	9,404	10,755
Other asset-backed
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	1,231,477	1,197,183
Fair value, recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	5,331,345	5,266,141
Fair value, recurring | U.S. government, agencies and GSEs
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	303,543	195,129
Fair value, recurring | State and political subdivisions
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	432,929	438,214
Fair value, recurring | Non-U.S. government
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	11,405	11,467
Fair value, recurring | U.S. corporate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	2,646,014	2,723,730
Fair value, recurring | Non-U.S. corporate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	696,573	689,663
Fair value, recurring | Residential mortgage-backed
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	9,404	10,755
Fair value, recurring | Other asset-backed
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	1,231,477	1,197,183
Level 2 | Fair value, recurring
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	4,997,937	4,934,657
Level 2 | Fair value, recurring | U.S. government, agencies and GSEs
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	303,543	195,129
Level 2 | Fair value, recurring | State and political subdivisions
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	432,929	438,214
Level 2 | Fair value, recurring | Non-U.S. government
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	11,405	11,467
Level 2 | Fair value, recurring | U.S. corporate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	2,408,566	2,476,525
Level 2 | Fair value, recurring | Non-U.S. corporate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	614,520	608,342
Level 2 | Fair value, recurring | Residential mortgage-backed
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	9,404	10,755
Level 2 | Fair value, recurring | Other asset-backed
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	1,217,570	$ 1,194,225
Pricing Services | Level 2 | Fair value, recurring | U.S. government, agencies and GSEs
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	303,543
Pricing Services | Level 2 | Fair value, recurring | State and political subdivisions
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	432,929
Pricing Services | Level 2 | Fair value, recurring | Non-U.S. government
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	11,405
Pricing Services | Level 2 | Fair value, recurring | U.S. corporate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	2,238,761
Pricing Services | Level 2 | Fair value, recurring | Non-U.S. corporate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	537,135
Pricing Services | Level 2 | Fair value, recurring | Residential mortgage-backed
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	9,404
Pricing Services | Level 2 | Fair value, recurring | Other asset-backed
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value	$ 1,217,570

Fair value - Schedule of Fair V

Fair value - Schedule of Fair Value Assets Measured on Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	$ 5,331,345	$ 5,266,141
Short-term investments	12,313	20,219
State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	432,929	438,214
Non-U.S. government
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	11,405	11,467
U.S. corporate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	2,646,014	2,723,730
Non-U.S. corporate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	696,573	689,663
Residential mortgage-backed
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	9,404	10,755
Other asset-backed
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	1,231,477	1,197,183
Fair value, recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	5,331,345	5,266,141
Short-term investments	12,313	20,219
Total	5,343,658	5,286,360
Fair value, recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	0	0
Short-term investments	0	0
Total	0	0
Fair value, recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	4,997,937	4,934,657
Short-term investments	12,313	20,219
Total	5,010,250	4,954,876
Fair value, recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	333,408	331,484
Short-term investments	0	0
Total	333,408	331,484
Fair value, recurring | U.S. government, agencies and GSEs
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	303,543	195,129
Fair value, recurring | U.S. government, agencies and GSEs | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	0	0
Fair value, recurring | U.S. government, agencies and GSEs | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	303,543	195,129
Fair value, recurring | U.S. government, agencies and GSEs | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	0	0
Fair value, recurring | State and political subdivisions
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	432,929	438,214
Fair value, recurring | State and political subdivisions | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	0	0
Fair value, recurring | State and political subdivisions | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	432,929	438,214
Fair value, recurring | State and political subdivisions | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	0	0
Fair value, recurring | Non-U.S. government
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	11,405	11,467
Fair value, recurring | Non-U.S. government | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	0	0
Fair value, recurring | Non-U.S. government | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	11,405	11,467
Fair value, recurring | Non-U.S. government | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	0	0
Fair value, recurring | U.S. corporate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	2,646,014	2,723,730
Fair value, recurring | U.S. corporate | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	0	0
Fair value, recurring | U.S. corporate | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	2,408,566	2,476,525
Fair value, recurring | U.S. corporate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	237,448	247,205
Fair value, recurring | Non-U.S. corporate
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	696,573	689,663
Fair value, recurring | Non-U.S. corporate | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	0	0
Fair value, recurring | Non-U.S. corporate | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	614,520	608,342
Fair value, recurring | Non-U.S. corporate | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	82,053	81,321
Fair value, recurring | Residential mortgage-backed
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	9,404	10,755
Fair value, recurring | Residential mortgage-backed | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	0	0
Fair value, recurring | Residential mortgage-backed | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	9,404	10,755
Fair value, recurring | Residential mortgage-backed | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	0	0
Fair value, recurring | Other asset-backed
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	1,231,477	1,197,183
Fair value, recurring | Other asset-backed | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	0	0
Fair value, recurring | Other asset-backed | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	1,217,570	1,194,225
Fair value, recurring | Other asset-backed | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total fixed maturity securities	$ 13,907	$ 2,958

Fair value - Schedule of Additi

Fair value - Schedule of Additional Information about Fair Value Assets Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	$ 334,944	$ 291,445	$ 331,484	$ 319,261
Total realized and unrealized gains (losses) included in net income	(334)	2	(326)	(733)
Total realized and unrealized gains (losses) included in OCI	(1,484)	(5,354)	(4,007)	1,451
Purchases	18,999	27,991	22,934	34,750
Sales	(1,748)	0	(1,748)	(10,442)
Settlements	(13,377)	(8,107)	(13,900)	(35,796)
Transfer into Level 3	0	0	4,651	0
Transfer out of Level 3	(3,592)	0	(5,680)	(2,514)
Ending Balance	333,408	305,977	333,408	305,977
Total gains (losses) attributable to assets still held included in net income	11	3	19	5
Total gains (losses) attributable to assets still held included in OCI	(1,710)	(6,176)	(4,258)	(999)
U.S. corporate
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	249,599	216,330	247,205	220,626
Total realized and unrealized gains (losses) included in net income	(352)	(8)	(359)	(21)
Total realized and unrealized gains (losses) included in OCI	(60)	(4,021)	(1,952)	3
Purchases	0	18,000	0	21,000
Sales	(1,739)	0	(1,739)	(6,899)
Settlements	(10,000)	(8,000)	(10,358)	(12,408)
Transfer into Level 3	0	0	4,651	0
Transfer out of Level 3	0	0	0	0
Ending Balance	237,448	222,301	237,448	222,301
Total gains (losses) attributable to assets still held included in net income	(8)	(7)	(15)	(16)
Total gains (losses) attributable to assets still held included in OCI	(294)	(4,842)	(2,186)	(1,093)
Non-U.S. corporate
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	80,554	74,131	81,321	95,154
Total realized and unrealized gains (losses) included in net income	9	8	16	(717)
Total realized and unrealized gains (losses) included in OCI	(1,395)	(1,309)	(2,064)	1,458
Purchases	6,000	0	6,000	3,759
Sales	(9)	0	(9)	(3,543)
Settlements	(3,106)	(106)	(3,211)	(23,387)
Transfer into Level 3	0	0	0	0
Transfer out of Level 3	0	0	0	0
Ending Balance	82,053	72,724	82,053	72,724
Total gains (losses) attributable to assets still held included in net income	10	8	17	16
Total gains (losses) attributable to assets still held included in OCI	(1,404)	(1,310)	(2,073)	122
Other asset-backed
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning Balance	4,791	984	2,958	3,481
Total realized and unrealized gains (losses) included in net income	9	2	17	5
Total realized and unrealized gains (losses) included in OCI	(29)	(24)	9	(10)
Purchases	12,999	9,991	16,934	9,991
Sales	0	0	0	0
Settlements	(271)	(1)	(331)	(1)
Transfer into Level 3	0	0	0	0
Transfer out of Level 3	(3,592)	0	(5,680)	(2,514)
Ending Balance	13,907	10,952	13,907	10,952
Total gains (losses) attributable to assets still held included in net income	9	2	17	5
Total gains (losses) attributable to assets still held included in OCI	$ (12)	$ (24)	$ 1	$ (28)

Fair value - Summary of Fair Va

Fair value - Summary of Fair Value Assets Measured on Recurring Basis, Significant Unobservable Input (Details) $ in Thousands	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value	$ 5,331,345	$ 5,266,141
U.S. corporate
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value	2,646,014	2,723,730
Non-U.S. corporate
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value	696,573	689,663
Fair value, recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value	5,331,345	5,266,141
Fair value, recurring | U.S. corporate
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value	2,646,014	2,723,730
Fair value, recurring | Non-U.S. corporate
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value	$ 696,573	689,663
Level 3  | U.S. corporate | Internal models | Credit spreads | Minimum
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fixed maturity securities, measurement input (in basis points)	0.0014
Level 3  | U.S. corporate | Internal models | Credit spreads | Maximum
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fixed maturity securities, measurement input (in basis points)	0.0178
Level 3  | U.S. corporate | Internal models | Credit spreads | Weighted average
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fixed maturity securities, measurement input (in basis points)	0.0101
Level 3  | Non-U.S. corporate | Internal models | Credit spreads | Minimum
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fixed maturity securities, measurement input (in basis points)	0.0083
Level 3  | Non-U.S. corporate | Internal models | Credit spreads | Maximum
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fixed maturity securities, measurement input (in basis points)	0.0229
Level 3  | Non-U.S. corporate | Internal models | Credit spreads | Weighted average
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fixed maturity securities, measurement input (in basis points)	0.0115
Level 3  | Fair value, recurring
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value	$ 333,408	331,484
Level 3  | Fair value, recurring | Internal models
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value	308,000
Level 3  | Fair value, recurring | U.S. corporate
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value	237,448	247,205
Level 3  | Fair value, recurring | U.S. corporate | Internal models
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value	237,448
Level 3  | Fair value, recurring | Non-U.S. corporate
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value	82,053	$ 81,321
Level 3  | Fair value, recurring | Non-U.S. corporate | Internal models
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Fair value	$ 70,558

Fair value - Schedule of Estima

Fair value - Schedule of Estimated Fair Value Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Carrying amount
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term borrowings	$ 742,368	$ 745,416
Level 2 | Fair value
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term borrowings	$ 749,880	$ 748,785

Loss reserves - Summary of Liab

Loss reserves - Summary of Liability For Unpaid Claims And Claim Adjustment Expenses (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023	Jun. 30, 2023	Dec. 31, 2022
Effects of Reinsurance [Line Items]
Loss reserves	$ 508,138	$ 518,191
Domestic mortgage insurance
Effects of Reinsurance [Line Items]
Loss reserves	506,710	517,515	$ 489,304	$ 518,330
Run-off and other reserves
Effects of Reinsurance [Line Items]
Loss reserves	$ 1,428	$ 676

Loss reserves - Activity for th

Loss reserves - Activity for the Liability for Loss Reserves (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Gross loss reserves, beginning balance	$ 518,191
Gross loss reserves, ending balance	508,138
Domestic mortgage insurance
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Gross loss reserves, beginning balance	517,515	$ 518,330
Reinsurance recoverable, beginning balance	1,294	0
Net loss reserves, beginning balance	516,221	518,330
Losses and LAE incurred related to current accident year	135,053	120,175
Losses and LAE incurred related to prior accident years	(133,232)	(135,366)
Total incurred	1,821	(15,191)
Losses and LAE paid related to current accident year	1,263	(359)
Losses and LAE paid related to prior accident years	(13,943)	(13,689)
Total paid	(12,680)	(14,048)
Net loss reserves, ending balance	505,362	489,091
Reinsurance recoverable, ending balance	1,348	213
Gross loss reserves, ending balance	$ 506,710	$ 489,304

Loss reserves - Narrative (Deta

Loss reserves - Narrative (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Scenario 2
Liability for Claims and Claims Adjustment Expense [Line Items]
Adjustments on prior accident year reserves		$ 133
Scenario 1
Liability for Claims and Claims Adjustment Expense [Line Items]
Losses and LAE incurred	$ 135
Scenario 2
Liability for Claims and Claims Adjustment Expense [Line Items]
Losses and LAE incurred		$ 120
Scenario Two
Liability for Claims and Claims Adjustment Expense [Line Items]
Adjustments on prior accident year reserves	$ 131

Reinsurance - Summary of Effect

Reinsurance - Summary of Effects of Reinsurance on Premiums Written and Earned (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Net premiums written:
Direct	$ 259,265	$ 245,160	$ 514,425	$ 486,099
Assumed	3,460	256	5,031	315
Ceded	(27,175)	(21,015)	(53,603)	(40,942)
Net premiums written	235,550	224,401	465,853	445,472
Net premiums earned:
Direct	268,282	259,279	533,886	514,255
Assumed	3,460	256	5,031	315
Ceded	(27,175)	(21,015)	(53,603)	(40,942)
Net premiums earned	$ 244,567	$ 238,520	$ 485,314	$ 473,628

Reinsurance - Narrative (Detail

Reinsurance - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Abstract]
Written premiums	$ 235,550	$ 224,401	$ 465,853	$ 445,472
Premiums	$ 244,567	$ 238,520	$ 485,314	$ 473,628

Reinsurance - Schedule of Retai

Reinsurance - Schedule of Retained Aggregate Loss and Initial and Current Reinsurance Coverage (Details) $ in Millions	Jun. 30, 2024 USD ($)
Reinsurance Policy, Type [Axis]: 2021 XOL
Reinsurance Retention Policy [Line Items]
Initial first layer retained loss	$ 671
Current first layer retained loss	668
Initial reinsurance coverage	206
Current reinsurance coverage	107
Reinsurance Policy, Type [Axis]: 2022-1 XOL
Reinsurance Retention Policy [Line Items]
Initial first layer retained loss	462
Current first layer retained loss	459
Initial reinsurance coverage	196
Current reinsurance coverage	181
Reinsurance Policy, Type [Axis]: 2022-2 XOL
Reinsurance Retention Policy [Line Items]
Initial first layer retained loss	385
Current first layer retained loss	382
Initial reinsurance coverage	25
Current reinsurance coverage	25
Reinsurance Policy, Type [Axis]: 2022-3 XOL
Reinsurance Retention Policy [Line Items]
Initial first layer retained loss	317
Current first layer retained loss	315
Initial reinsurance coverage	289
Current reinsurance coverage	194
Reinsurance Policy, Type [Axis]: 2022-4 XOL
Reinsurance Retention Policy [Line Items]
Initial first layer retained loss	264
Current first layer retained loss	262
Initial reinsurance coverage	36
Current reinsurance coverage	36
Reinsurance Policy, Type [Axis]: 2022-5 XOL
Reinsurance Retention Policy [Line Items]
Initial first layer retained loss	256
Current first layer retained loss	255
Initial reinsurance coverage	201
Current reinsurance coverage	165
Reinsurance Policy, Type [Axis]: 2023-1 XOL
Reinsurance Retention Policy [Line Items]
Initial first layer retained loss	360
Current first layer retained loss	360
Initial reinsurance coverage	180
Current reinsurance coverage	180
Reinsurance Policy, Type [Axis]: 2024-1 XOL
Reinsurance Retention Policy [Line Items]
Initial first layer retained loss	178
Current first layer retained loss	178
Initial reinsurance coverage	117
Current reinsurance coverage	117
Reinsurance Policy, Type [Axis]: 2024-2 XOL
Reinsurance Retention Policy [Line Items]
Initial first layer retained loss	134
Current first layer retained loss	134
Initial reinsurance coverage	90
Current reinsurance coverage	90
Reinsurance Policy, Type [Axis]: Mortgage Insurance-Linked Notes
Reinsurance Retention Policy [Line Items]
Current reinsurance coverage	618
Reinsurance Policy, Type [Axis]: Traditional Excess-of-Loss Reinsurance
Reinsurance Retention Policy [Line Items]
Current reinsurance coverage	1,095
Reinsurance Policy, Type [Axis]: Triangle Re 2021-2 Ltd.
Reinsurance Retention Policy [Line Items]
Initial first layer retained loss	189
Current first layer retained loss	188
Initial reinsurance coverage	303
Current reinsurance coverage	149
Reinsurance Policy, Type [Axis]: Triangle Re 2021-3 Ltd.
Reinsurance Retention Policy [Line Items]
Initial first layer retained loss	304
Current first layer retained loss	302
Initial reinsurance coverage	372
Current reinsurance coverage	221
Reinsurance Policy, Type [Axis]: Triangle Re 2023-1 Ltd.
Reinsurance Retention Policy [Line Items]
Initial first layer retained loss	244
Current first layer retained loss	244
Initial reinsurance coverage	248
Current reinsurance coverage	$ 248

Reinsurance - Quota Share Reins

Reinsurance - Quota Share Reinsurance (Details)	Jun. 30, 2024
Reinsurance Policy, Type [Axis]: QS 2023 - 1
Reinsurance Retention Policy [Line Items]
Ceding percentage	16.125%
Ceding commission	20%
Profit commission	55%
Reinsurance Policy, Type [Axis]: QS 2024 - 1
Reinsurance Retention Policy [Line Items]
Ceding percentage	21.225%
Ceding commission	20%
Profit commission	55%

Borrowings - Narrative (Details

Borrowings - Narrative (Details) - USD ($)				3 Months Ended		6 Months Ended
	Jun. 03, 2024	May 28, 2024	Jun. 30, 2022	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2020
Debt Instrument [Line Items]
Gain (Loss) on Extinguishment of Debt				$ 10,930,000	$ 0	$ 10,930,000	$ 0
Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Debt instrument, term (in years)			5 years
Line of credit facility, maximum borrowing capacity			$ 200,000,000
Line of credit facility, additional borrowing capacity			$ 100,000,000
6.5% Senior Notes, due 2025 | Senior Notes
Debt Instrument [Line Items]
Face amount								$ 750,000,000
Stated interest rate								6.50%
Redemption price, percentage	101%
Senior Notes, Due 2029 | Senior Notes
Debt Instrument [Line Items]
Face amount		$ 750,000,000
Stated interest rate		6.25%
Debt Instrument, basis spread on variable rate		0.30%
Redemption price, percentage		100%

Borrowings - Schedule of Long-t

Borrowings - Schedule of Long-term Borrowings (Details) - USD ($) $ in Thousands	Jun. 30, 2024	May 28, 2024	Dec. 31, 2023	Dec. 31, 2020
Debt Instrument [Line Items]
Total	$ 742,368		$ 745,416
6.5% Senior Notes, due 2025 | Senior Notes
Debt Instrument [Line Items]
Long-Term Debt, Gross	0		750,000
Deferred borrowing charges and discount	(7,632)		(4,584)
Total	742,368		745,416
Stated interest rate				6.50%
Senior Notes, Due 2029 | Senior Notes
Debt Instrument [Line Items]
Long-Term Debt, Gross	$ 750,000		$ 0
Stated interest rate		6.25%

Related party transactions - Na

Related party transactions - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Related Party Transaction [Line Items]
Investment expenses and fees	$ 1,809	$ 1,582	$ 3,499	$ 3,236
Total revenues	298,834	277,522	590,410	558,461
Related Party
Related Party Transaction [Line Items]
General and administrative expense	2,800	4,500	5,600	9,200
Investment expenses and fees	$ 1,800	1,700	$ 3,300	3,300
Total revenues		$ 100		$ 200

Related party transactions - Sc

Related party transactions - Schedule of Related Party Transactions (Details) - Related Party - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Related Party Transaction [Line Items]
Amounts payable to Genworth	$ 13,211	$ 8,186
Amounts receivable from Genworth	$ 153	$ 215

Net income per common share - S

Net income per common share - Schedule of Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Earnings Per Share [Abstract]
Net income available to EHI common stockholders	$ 183,673	$ 168,020	$ 344,661	$ 344,008
Net income per common share, basic (in usd per share)	$ 1.17	$ 1.04	$ 2.18	$ 2.13
Net income per common share, diluted (in usd per share)	$ 1.16	$ 1.04	$ 2.16	$ 2.11
Weighted average common shares outstanding - basic (in shares)	157,193	161,318	158,005	161,880
Weighted average common shares outstanding - diluted (in shares)	158,571	162,171	159,329	162,675

Changes in accumulated other _3

Changes in accumulated other comprehensive income - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 4,713,764	$ 4,296,621	$ 4,632,347	$ 4,100,908
Other comprehensive income (loss) before reclassifications	(4,931)	(35,262)	(17,280)	27,144
Amounts reclassified from other comprehensive income (loss)	6,103	10,261	11,375	10,357
Total other comprehensive income (loss)	1,172	(25,001)	(5,905)	37,501
Ending balance	4,825,829	4,375,896	4,825,829	4,375,896
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(237,477)	(320,242)	(230,400)	(382,744)
Ending balance	(236,305)	(345,243)	(236,305)	(345,243)
Net unrealized investment gains (losses)
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(237,635)	(320,386)	(230,556)	(382,896)
Other comprehensive income (loss) before reclassifications	(4,931)	(35,261)	(17,282)	27,153
Amounts reclassified from other comprehensive income (loss)	6,103	10,261	11,375	10,357
Total other comprehensive income (loss)	1,172	(25,000)	(5,907)	37,510
Ending balance	(236,463)	(345,386)	(236,463)	(345,386)
Foreign currency translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	158	144	156	152
Other comprehensive income (loss) before reclassifications	0	(1)	2	(9)
Amounts reclassified from other comprehensive income (loss)	0	0	0	0
Total other comprehensive income (loss)	0	(1)	2	(9)
Ending balance	$ 158	$ 143	$ 158	$ 143

Changes in accumulated other _4

Changes in accumulated other comprehensive income - Reclassification out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Benefit (expense) from income taxes	$ (51,156)	$ (46,127)	$ (96,089)	$ (94,652)
Reclassification out of Accumulated Other Comprehensive Income | Amounts reclassified from accumulated other comprehensive income (loss)
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net unrealized gains (losses) on investments	(7,724)	(12,988)	(14,397)	(13,110)
Benefit (expense) from income taxes	$ 1,621	$ 2,727	$ 3,022	$ 2,753

Stockholders' equity (Details)

Stockholders' equity (Details) - USD ($)	1 Months Ended	3 Months Ended				6 Months Ended
	Jul. 31, 2024	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023	May 01, 2024	Aug. 01, 2023
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount								$ 250,000,000	$ 100,000,000
Stock repurchased and retired during period (in shares)		1,601,419		1,705,169		3,381,257	2,621,945
Stock acquired, average cost per share (in usd per share)		$ 30.43		$ 24.13		$ 28.89	$ 24.15
Stock repurchase program, remaining authorized repurchase amount		$ 238,200,000				$ 238,200,000
Cash dividends paid (in usd per share)		$ 0.185	$ 0.16	$ 0.16	$ 0.14
Subsequent Event
Equity, Class of Treasury Stock [Line Items]
Stock repurchased and retired during period (in shares)	406,945
Stock acquired, average cost per share (in usd per share)	$ 31.01