Insurance and reinsurance (Tables)

12 Months Ended

Dec. 31, 2021

SEC Schedule, 12-17, Insurance Companies, Reinsurance [Abstract]

Effects of Reinsurance

	Year Ended December 31,
	2021		2020		2019
	(dollars in thousands)
Incurred and paid claims
Insurance (net of Outward Reinsurance)	$	3,285	$	—	$	—
Inward Reinsurance	17,140		14,838		24,380
Total	$	20,425	$	14,838	$	24,380
Change in claims outstanding and claims IBNR
Insurance (net of Outward Reinsurance)	$	112	$	—	$	—
Inward Reinsurance	3,304		11,599		5,700
Total	$	3,416	$	11,599	$	5,700