Segment Information (Schedule of Business Segment Information) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Revenues [Abstract]
Revenues	$ 80,514	$ 104,188	$ 166,186	$ 216,241
Pre-tax (loss) income [Abstract]
Pre-tax (loss) income	(57,550)	(1,011)	(61,669)	10,216
Specialty Commercial Segment [Member]
Revenues [Abstract]
Revenues	49,087	64,890	100,998	134,489
Pre-tax (loss) income [Abstract]
Pre-tax (loss) income	(45,907)	4,848	(43,342)	16,196
Standard Commercial Segment [Member]
Revenues [Abstract]
Revenues	16,888	17,240	34,016	34,928
Pre-tax (loss) income [Abstract]
Pre-tax (loss) income	(786)	(1,976)	(1,478)	(1,610)
Personal Segment [Member]
Revenues [Abstract]
Revenues	17,048	19,115	33,867	38,074
Pre-tax (loss) income [Abstract]
Pre-tax (loss) income	(2,819)	(2,766)	(3,845)	(4,389)
Corporate [Member]
Revenues [Abstract]
Revenues	(2,509)	2,943	(2,695)	8,750
Pre-tax (loss) income [Abstract]
Pre-tax (loss) income	$ (8,038)	$ (1,117)	$ (13,004)	$ 19