CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Revenues
Net premiums earned	$ 1,088,625	$ 1,134,212
Net investment income	93,101	107,303
Other insurance related income (loss)	(8,707)	6,929
Net investment gains (losses):
Allowance for expected credit losses	(20,019)	0
Impairment losses	(1,190)	0
Other-than-temporary impairment ("OTTI") losses	0	(4,036)
Other realized and unrealized investment gains (losses)	(41,668)	16,803
Total net investment gains (losses)	(62,877)	12,767
Total revenues	1,110,142	1,261,211
Expenses
Net losses and loss expenses	908,073	664,028
Acquisition costs	238,650	260,418
General and administrative expenses	157,060	175,091
Foreign exchange losses (gains)	(61,683)	7,056
Interest expense and financing costs	23,472	15,895
Reorganization expenses	(982)	14,820
Amortization of value of business acquired	1,799	13,104
Amortization of intangible assets	2,870	3,003
Total expenses	1,269,259	1,153,415
Income (loss) before income taxes and interest in income (loss) of equity method investments	(159,117)	107,796
Income tax (expense) benefit	4,867	(1,234)
Interest in income (loss) of equity method investments	(23,577)	2,219
Net income (loss)	(177,827)	108,781
Preferred share dividends	7,563	10,656
Net income (loss) available (attributable) to common shareholders	$ (185,390)	$ 98,125
Earnings (loss) per common share:
Earnings (loss) per common share (in usd per share)	$ (2.20)	$ 1.17
Earnings (loss) per diluted common share (in usd per share)	$ (2.20)	$ 1.16
Weighted average common shares outstanding (in shares)	84,094	83,725
Weighted average diluted common shares outstanding (in shares)	84,094	84,272