Reinsurance (Tables)

12 Months Ended

Dec. 31, 2020

Insurance [Abstract]

Schedule of the Effect of Reinsurance on Premiums Written and Earned

The effect of reinsurance on premiums written and earned in 2020, 2019 and 2018 was as follows:

	2020 Premiums						2019 Premiums						2018 Premiums
	Written			Earned			Written			Earned			Written			Earned
	(in thousands)
Gross	$	303,090		$	314,703		$	333,460		$	341,883		$	351,696		$	359,670
Ceded		(10,276	)		(10,276	)		(8,995	)		(8,995	)		(9,344	)		(9,344	)
Net premiums	$	292,814		$	304,427		$	324,465		$	332,888		$	342,352		$	350,326

Schedule of the Amounts Recoverable from Reinsurers

The amounts recoverable from reinsurers consist of the following:

	December 31,
	2020			2019
	(in thousands)
Unpaid losses recoverable:
Case basis	$	88,622		$	82,252
Incurred but not reported		17,085			13,090
Paid losses recoverable		548			571
Allowance for credit losses		(452	)		—
Total	$	105,803		$	95,913

Schedule of Unsecured Reinsurance Recoverables from Reinsurers

Reinsurer	A.M. Best Rating	Amounts Recoverable as of December 31, 2020
		(in thousands)
Hannover Reinsurance (Ireland) Limited (1)	A+	$	56,753
Allianz Risk Transfer AG (Bermuda)	A+		12,050
Odyssey America Reinsurance Corporation	A		8,688
Minnesota Workers' Compensation Reinsurance Association (1)	NR		6,367
Other reinsurers			22,397
Total amounts recoverable from reinsurers			106,255
Allowance for credit losses			(452	)
Total amounts recoverable from reinsurers net of allowance for credit losses			105,803
Funds withheld and letters of credit related to the above recoverables			(71,986	)
Total unsecured amounts recoverable from reinsurers		$	33,817

(1) Current participant in our 2021 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, 2020.

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