Reinsurance (Tables)

12 Months Ended

Dec. 31, 2021

Insurance [Abstract]

Schedule of the Effect of Reinsurance on Premiums Written and Earned

The effect of reinsurance on premiums written and earned in 2021, 2020 and 2019 was as follows:

	2021 Premiums						2020 Premiums						2019 Premiums
	Written			Earned			Written			Earned			Written			Earned
	(in thousands)
Gross	$	278,294		$	286,462		$	303,090		$	314,703		$	333,460		$	341,883
Ceded		(10,469	)		(10,469	)		(10,276	)		(10,276	)		(8,995	)		(8,995	)
Net premiums	$	267,825		$	275,993		$	292,814		$	304,427		$	324,465		$	332,888

Schedule of the Amounts Recoverable from Reinsurers

The amounts recoverable from reinsurers consist of the following:

	December 31,
	2021			2020
	(in thousands)
Unpaid losses recoverable:
Case basis	$	101,249		$	88,622
Incurred but not reported		18,017			17,085
Paid losses recoverable		778			548
Experience-rated commissions recoverable		957			—
Allowance for credit losses		(440	)		(452	)
Total	$	120,561		$	105,803

Schedule of Unsecured Reinsurance Recoverables from Reinsurers

Reinsurer	A.M. Best Rating	Amounts Recoverable as of December 31, 2021
		(in thousands)
Hannover Reinsurance Ireland Limited (1)	A+	$	58,128
Allianz Risk Transfer AG (Bermuda)	A+		10,654
Minnesota Workers' Compensation Reinsurance Association (1)	NR		8,663
Arch Reinsurance Company (1)	A+		8,147
Odyssey America Reinsurance Corporation	A		7,665
Other reinsurers			27,744
Total amounts recoverable from reinsurers			121,001
Allowance for credit losses			(440	)
Total amounts recoverable from reinsurers net of allowance for credit losses			120,561
Funds withheld and letters of credit related to the above recoverables			(74,489	)
Total unsecured amounts recoverable from reinsurers		$	46,072

(1) Current participant in our 2022 reinsurance program.

Change in Allowance for Credit Losses on Amounts Recoverable from Reinsurers

The table below presents the change in the allowance for credit losses on amounts recoverable from reinsurers for the year ended December 31, 2021.

	Year Ended December 31,
	2021			2020
	(in thousands)
Balance, beginning of period	$	452		$	444
Provision for credit loss expense (benefit)		(12	)		8
Balance, end of period	$	440		$	452