CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Fixed maturities, available-for-sale, amortized cost	$ 1,530,689	$ 1,813,426
Deferred commission and other acquisition expenses	69,109	77,356
Funds withheld receivable	696,076	684,441
Loss and loss adjustment expenses	2,249,045	2,439,907
Unearned premiums	197,094	220,269
Accrued expenses and other liabilities	$ 22,708	$ 32,444
Common shares, par value (in dollars per share)	$ 0.01	$ 0.01
Common shares, shares issued (in shares)	88,983,171	88,161,638
Common shares, shares outstanding (in shares)	83,969,991	83,148,458
Treasury shares (in shares)	5,013,180	5,013,180
Related party transactions
Deferred commission and other acquisition expenses	$ 61,439	$ 68,433
Funds withheld receivable	649,516	632,305
Loss and loss adjustment expenses	2,095,411	2,272,418
Unearned premiums	171,113	189,797
Accrued expenses and other liabilities	$ 11,170	$ 20,049