Significant Accounting Policies - Schedule of Non-deferred Acquisition Costs Related to Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Accounting Policies [Abstract]
Commissions	$ 342,189	$ 317,576	$ 295,877
Premium taxes	97,966	96,790	91,021
Non-deferred acquisition costs	202,545	186,387	172,269
Total	$ 642,700	$ 600,753	$ 559,167

Non-deferred commissions, non-deferred acquisition costs and premium taxes.

No definition available.

Name:	gl_NonDeferredAcquisitionCostsAndPremiumTaxes
Namespace Prefix:	gl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration