Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Assets:
Fixed-maturity securities available-for-sale, at fair value (amortized cost: $607,737 in 2026 and $546,755 in 2025)	$ 611,314	$ 558,428
Utility & Infrastructure Investments, at fair value (cost of $182,753 in 2026 and $172,753 in 2025)	227,267	189,859
Short-term investments	228,919	220,241
Loans to affiliates	106,500	106,500
Other invested assets	1,766	280
Total invested assets	1,175,766	1,075,308
Cash and cash equivalents	33,327	29,721
Investment income due and accrued	10,497	10,186
Premiums receivable, net of allowance for credit losses of $10,860 in 2026 and $8,754 in 2025	111,638	75,244
Deferred policy acquisition costs, net of ceding commissions	39,004	30,204
Prepaid reinsurance premiums	3,397	2,928
Deferred income tax asset, net	13,996	13,289
Reinsurance recoverable, net of allowance for credit losses of $0 in 2026 and 2025	188,156	150,386
Ceded unearned premiums	76,555	74,317
Other assets	11,265	12,730
Total assets	1,663,601	1,474,313
Liabilities:
Reserves for unpaid losses and loss adjustment expenses	583,933	502,248
Unearned premiums	337,260	281,864
Payable to reinsurers	39,434	31,064
Accounts payable and accrued expenses	27,671	31,684
Funds held under reinsurance treaties	1,366	1,547
Income tax payable	1,406	8,414
Other liabilities	2,156	2,633
Total liabilities	993,226	859,454
Stockholders' equity:
Preferred stock, $0.001 par value, 100,000,000 shares authorized and none issued or outstanding.	0	0
Common stock, $0.001 par value, 500,000,000 shares authorized; 48,066,674 shares issued and 47,926,928 shares outstanding as of June 30, 2026; 48,066,674 shares issued and outstanding as of December 31, 2025.	48	48
Additional paid-in capital	496,861	496,470
Retained earnings	167,480	108,571
Accumulated other comprehensive income	2,809	9,220
Treasury stock, at cost (139,746 shares as of June 30, 2026 and 0 as of December 31, 2025)	(2,804)	0
Total stockholders' equity	664,394	614,309
Non-controlling interest - General Partner	5,981	550
Total stockholders' equity and non-controlling interest	670,375	614,859
Total liabilities, stockholders' equity and non-controlling interest	$ 1,663,601	$ 1,474,313

Ceded Unearned Premiums

No definition available.

Name:	asic_CededUnearnedPremiums
Namespace Prefix:	asic_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Sum of the carrying values as of the balance sheet date of obligations incurred through that date, including liabilities incurred and payable to vendors for goods and services received, taxes, interest, rent and utilities, compensation costs, payroll taxes and fringe benefits (other than pension and postretirement obligations), contractual rights and obligations, and statutory obligations.