CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Fixed maturities, available-for-sale, amortized cost	$ 1,258,915	$ 1,813,426
Reinsurance balance receivable, net	6,144	12,181
Deferred commission and other acquisition expenses	55,962	77,356
Funds withheld receivable	652,855	684,441
Loss and loss adjustment expenses	1,975,073	2,439,907
Unearned premiums	161,453	220,269
Accrued expenses and other liabilities	$ 45,026	$ 32,444
Common shares, par value (in dollars per share)	$ 0.01	$ 0.01
Common shares, shares issued (in shares)	89,777,896	88,161,638
Common shares, shares outstanding (in shares)	84,763,882	83,148,458
Treasury shares (in shares)	5,014,014	5,013,180
Affiliated Entity
Deferred commission and other acquisition expenses	$ 49,216	$ 68,433
Funds withheld receivable	601,902	632,305
Loss and loss adjustment expenses	1,810,043	2,272,418
Unearned premiums	138,252	189,797
Accrued expenses and other liabilities	$ 34,414	$ 20,049