CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Statement of Income and Comprehensive Income
Net Income		$ 88,987	$ 597,452	$ 173,986	$ 672,278
Other comprehensive loss before tax:
Foreing currency translation adjustment	[1]	(1,435)	(1,092)	(2,140)	(1,673)
Amortization of net losses		5,487	5,025	10,973	10,050
Amortization of prior service cost		(950)	(950)	(1,900)	(1,900)
Unrealized holding (losses) gains on investments arising during the period		38,092	(41,191)	114,328	(5,849)
Other-than-temporary impairment included in net income		209	14,445	209	14,445
Reclassification adjustment for (gains) losses included in net income (loss)		0	(5)	0	(5)
Unrealized net (losses) gains on cash flow hedges		(1,539)	1,004	(3,539)	(1,530)
Reclassification adjustment for net (gains) losses included in net income		1,271	951	2,816	2,309
Other comprehensive loss before tax		41,135	(21,813)	120,747	15,847
Income tax benefit (expense)		(4,997)	(2,818)	(9,473)	(5,006)
Total other comprehensive loss, net of tax		36,138	(24,631)	111,274	10,841
Comprehensive income (loss), net of tax		$ 125,125	$ 572,821	$ 285,260	$ 683,119

[1] All amounts presented are net of tax.