v3.6.0.2
Accumulated Other Comprehensive Income (Loss) Reclassifications in AOCI (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other income (expense), net $ 56,398 $ 38,270 $ (2,721)
Provision for income taxes, investments (138,520) (298,396) (398,902)
Total reclassifications for the period 50,717 475  
Reclassification out of Accumulated Other Comprehensive Income [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Total reclassifications for the period 50,717 475 209
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Amortization of pension and other post-retirement items 0 0 (347)
Accumulated Defined Benefit Plans Adjustment, Net Gain (Loss) Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Amortization of pension and other post-retirement items (1,429) (2,663) (577)
Accumulated Defined Benefit Plan Adjustment, Curtailments Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Amortization of pension and other post-retirement items (364) 0 0
Accumulated Defined Benefit Plan Adjustment, Settlement Benefits Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Amortization of pension and other post-retirement items (371) (355) 0
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Total reclassifications for the period (1,341) (1,958)  
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Amortization of pension and other post-retirement items (2,164) (3,018) (924)
Provision for income taxes, defined benefit plan 823 1,060 356
Total reclassifications for the period (1,341) (1,958) (568)
Accumulated Net Investment Gain (Loss) Including Portion Attributable to Noncontrolling Interest [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Other income (expense), net 53,720 3,798 1,212
Provision for income taxes, investments (1,662) (1,365) (435)
Income (Loss) from Continuing Operations, including portion attributable to noncontrolling interest $ 52,058 $ 2,433 $ 777