Schedule IV - Reinsurance

12 Months Ended

Dec. 31, 2020

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

Schedule IV - Reinsurance

Schedule IV—Reinsurance

Insurance Premiums Earned

Years Ended December 31, 2020, 2019 and 2018

($ in thousands)	Gross Amount	Ceded to Other Companies	Assumed from Other Companies	Net Amount	Assumed Premiums as a Percentage of Net Premiums
2020	951,302	(88,738)	—	862,564	0.0	%
2019	812,924	(35,499)	—	777,425	0.0	%
2018	660,260	(10,768)	—	649,492	0.0	%