Underwriting, Acquisition and Insurance Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Other Income and Expenses [Abstract]
Total underwriting, acquisition and insurance expenses	$ 311,757	$ 243,444	$ 182,171

Deferred Policy Acquisition Costs, Amortization Expense And Other Cost And Expense, Operating

No definition available.

Name:	skwd_DeferredPolicyAcquisitionCostsAmortizationExpenseAndOtherCostAndExpenseOperating
Namespace Prefix:	skwd_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration