Segment Information (Schedule of Business Segment Information) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenues [Abstract]
Revenues	$ 97,350	$ 120,293	$ 313,591	$ 349,761
Pre-Tax Income (Loss)[Abstract]
Pre-tax income (loss)	4,391	(37,792)	14,608	(102,484)
Specialty Commercial Segment [Member]
Revenues [Abstract]
Revenues	62,493	83,749	196,982	262,761
Pre-Tax Income (Loss)[Abstract]
Pre-tax income (loss)	12,620	(27,237)	28,816	(5,752)
Standard Commercial Segment [Member]
Revenues [Abstract]
Revenues	18,157	17,398	53,085	52,130
Pre-Tax Income (Loss)[Abstract]
Pre-tax income (loss)	1,957	(1,672)	347	(154)
Personal Segment [Member]
Revenues [Abstract]
Revenues	18,316	20,513	56,390	65,300
Pre-Tax Income (Loss)[Abstract]
Pre-tax income (loss)	(3,887)	(2,065)	(8,275)	(5,836)
Corporate [Member]
Revenues [Abstract]
Revenues	(1,616)	(1,367)	7,134	(30,430)
Pre-Tax Income (Loss)[Abstract]
Pre-tax income (loss)	$ (6,299)	$ (6,818)	$ (6,280)	$ (90,742)