Consolidated Statements of Income and Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues
Gross premiums written	$ 847,206	$ 792,902	$ 2,679,662	$ 1,983,759
Reinsurance premiums ceded	(107,567)	(56,222)	(483,861)	(256,328)
Net premiums written	739,639	736,680	2,195,801	1,727,431
Change in unearned premiums	(3,032)	(105,653)	(840,252)	(521,028)
Net premiums earned	736,607	631,027	1,355,549	1,206,403
Net investment income	57,560	44,241	109,632	84,455
Net realized (losses) gains on investments	(7,394)	2,274	(5,194)	1,110
Change in net unrealized (losses) gains on investments	(10,730)	16,321	(68,111)	29,669
Income from investment affiliates	2,178	9,466	15,246	14,654
Other insurance related (loss) income and other (loss) income	(16,116)	1,339	9,424	2,669
Foreign exchange losses	(526)	(7,329)	(1)	(5,760)
Total revenues	761,579	697,339	1,416,545	1,333,200
Expenses
Losses and loss expenses	476,610	296,149	798,155	565,734
Policy acquisition costs	118,781	117,268	235,237	228,896
General and administrative expenses	120,862	96,349	235,588	184,273
Share compensation expenses	16,040	11,146	25,769	20,637
Finance expenses	14,310	14,209	28,573	28,152
Transaction expenses	3,837	4,427	11,593	4,427
Total expenses	750,440	539,548	1,334,915	1,032,119
Income before taxes and (income) attributable to AlphaCat investors	11,139	157,791	81,630	301,081
Tax benefit	7,151	987	13,984	4,536
(Income) attributable to AlphaCat investors	(29,849)	(11,830)	(40,711)	(19,333)
Net (loss) income	(11,559)	146,948	54,903	286,284
Net (income) attributable to noncontrolling interests	(35,511)	(43,650)	(100,223)	(86,222)
Net (loss) income (attributable) available to Validus	(47,070)	103,298	(45,320)	200,062
Dividends on preferred shares	(5,828)	(2,203)	(11,656)	(4,406)
Net (loss) income (attributable) available to Validus common shareholders	(52,898)	101,095	(56,976)	195,656
Comprehensive (loss) income
Net (loss) income	(11,559)	146,948	54,903	286,284
Other comprehensive income (loss), net of tax:
Change in foreign currency translation adjustments	(2,737)	1,489	(900)	2,086
Change in minimum pension liability	342	1,184	304	1,252
Change in fair value of cash flow hedges	3,035	(144)	31,798	(46)
Other comprehensive income, net of tax	640	2,529	31,202	3,292
Comprehensive (income) attributable to noncontrolling interests	(35,511)	(43,650)	(100,223)	(86,222)
Comprehensive (loss) income (attributable) available to Validus	$ (46,430)	$ 105,827	$ (14,118)	$ 203,354
(Loss) earnings per common share
Basic (loss) earnings per share (attributable) available to Validus common shareholders	$ (0.66)	$ 1.28	$ (0.72)	$ 2.47
(Loss) earnings per diluted share (attributable) available to Validus common shareholders	(0.66)	1.25	(0.72)	2.42
Cash dividends declared per common share	$ 0.38	$ 0.38	$ 0.76	$ 0.76
Weighted average number of common shares and common share equivalents outstanding:
Basic (in shares)	79,650,474	79,270,561	79,488,081	79,202,116
Diluted (in shares)	79,650,474	80,872,451	79,488,081	80,861,998