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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement of Comprehensive Income [Abstract]
Net income	$ 48,386	$ 165,825
Other comprehensive income, net of tax:
Unrealized investment gains (losses) arising during the period	138,634	(5,187)
Adjustment for reclassification of net realized investment losses and OTTI losses recognized in net income	59,281	45,104
Unrealized investment gains arising during the period, net of reclassification adjustment	197,915	39,917
Foreign currency translation adjustment	8,196	(11,413)
Total other comprehensive income, net of tax	206,111	28,504
Comprehensive income	$ 254,497	$ 194,329

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