Consolidated Statements Of Operations And Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
REVENUES:
Premiums earned	$ 481,925	$ 521,062
Net investment income	58,445	72,581
Net realized capital gains (losses):
Other-than-temporary impairments on fixed maturity securities	$ (23,015)	$ (24,121)
Other-than-temporary impairments on fixed maturity securities transferred to other comprehensive income (loss)
Other net realized capital gains (losses)	$ (43,362)	$ 45,417
Total net realized capital gains (losses)	(66,377)	21,296
Other income (expense)	13,102	15,833
Total revenues	487,095	630,772
CLAIMS AND EXPENSES:
Incurred losses and loss adjustment expenses	296,062	308,880
Commission, brokerage, taxes and fees	68,822	96,531
Other underwriting expenses	59,227	48,543
Corporate expenses	2,336	1,609
Interest, fee and bond issue cost amortization expense	8,859	8,859
Total claims and expenses	435,306	464,422
INCOME (LOSS) BEFORE TAXES	51,789	166,350
Income tax expense (benefit)	12,863	50,406
NET INCOME (LOSS)	38,926	115,944
Other comprehensive income (loss), net of tax :
Unrealized appreciation (depreciation) ("URA(D)") on securities arising during the period	19,600	15,950
Less: reclassification adjustment for realized losses (gains) included in net income (loss)	25,915	23,665
Total URA(D) on securities arising during the period	45,515	39,615
Foreign currency translation adjustments	$ 14,932	$ (33,308)
Benefit plan actuarial net gain (loss) for the period
Reclassification adjustment for amortization of net (gain) loss included in net income (loss)	$ 1,340	$ 1,604
Total benefit plan net gain (loss) for the period	1,340	1,604
Total other comprehensive income (loss), net of tax	61,787	7,911
COMPREHENSIVE INCOME (LOSS)	$ 100,713	$ 123,855