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Fair Value Measurements - Schedule of Carrying Values and Estimated Fair Values of Financial Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Mar. 31, 2025	Dec. 31, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	$ 902,749		$ 507,938
Unamortized debt issuance costs	(6,262)
Finance lease obligations	4,879		6,282
Fair Value	$ 898,487		$ 489,694
7.25% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate	7.25%		7.25%
Unamortized debt issuance costs	$ (92)
Fair Value	56,274		$ 54,657
7.25% Senior Notes | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	$ 49,933		49,931
5.90% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate	5.90%	5.90%
Unamortized debt issuance costs	$ (3,871)
Fair Value	408,864		0
5.90% Senior Notes | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	$ 399,914		$ 0
6.70% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate	6.70%		6.70%
Unamortized debt issuance costs	$ (187)
Fair Value	105,970		$ 103,057
6.70% Senior Notes | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	$ 99,603		$ 99,590
5.375% Senior Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate	5.375%		5.375%
Unamortized debt issuance costs	$ (2,112)
Fair Value	268,221		$ 273,464
5.375% Senior Notes | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	$ 294,682		$ 294,627
3.03% borrowings from FHLBI
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate	3.03%		3.03%
Unamortized debt issuance costs	$ 0
Fair Value	59,158		$ 58,516
3.03% borrowings from FHLBI | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	60,000		60,000
Subtotal long-term debt
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value	898,487		489,694
Subtotal long-term debt | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Carrying Amount	904,132		504,148
Unamortized debt issuance costs | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Unamortized debt issuance costs	$ (6,262)		$ (2,492)

X

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Present value of lessee's discounted obligation for lease payments from finance lease.

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Amount of long-term debt and lease obligation, including portion classified as current.

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- Definition

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