CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Income and Comprehensive Income
Net Income		$ 279,783	$ 96,226	$ 371,107	$ 189,171
Other comprehensive income (loss) before tax:
Reclassification to retained earnings due to cumulative effect of accounting change	[1]	0	0	(605)	0
Foreing currency translation adjustment	[1]	(3,456)	(1,588)	(3,363)	(1,449)
Amortization of net losses		5,385	5,606	10,771	11,213
Amortization of prior service credit		(868)	(950)	(1,735)	(1,900)
Unrealized holding losses on debt securities arising during the period		(36,223)	8,758	(157,412)	5,732
Other-than-temporary impairment included in net income		0	8,299	0	8,299
Unrealized holding gains on equity securities arising during the period		0	46	0	165
Reclassification adjustment for (gains) losses on securities included in net income (loss)		0	(19)	0	(181)
Unrealized net (losses) gains on cash flow hedges		(270)	(377)	955	(1,014)
Reclassification adjustment for net (gains) losses included in net income		250	1,035	(1,017)	1,890
Other comprehensive income (loss) before tax		(35,182)	20,810	(152,406)	22,755
Income tax benefit (expense)		1,228	(3,841)	6,266	(5,412)
Total other comprehensive loss, net of tax		(33,954)	16,969	(146,140)	17,343
Comprehensive income (loss), net of tax		$ 245,829	$ 113,195	$ 224,967	$ 206,514

[1] All amounts presented are net of tax.