Other Comprehensive Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015		Dec. 31, 2014		Dec. 31, 2013
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, at beginning of year	$ 10,220		$ 27,830
Net unrealized gains (losses) arising during the period	(17,300)		(20,030)
Less: Net realized gains reclassified to net income	(4,090)		(2,420)
Other Comprehensive Income (Loss), Net of Tax	(13,210)		(17,610)		$ (11,430)
Accumulated Other Comprehensive Income (Loss), Attributed to Spin-off	(8,310)
Balance, at end of year	(11,300)		10,220		27,830
Other Comprehensive (Income) Loss, Amortization Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service Cost (Credit), Net of Tax	1,810		(3,340)		1,600
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Net of Tax	(2,650)		(450)		2,740
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax	(12,370)		(13,820)		(15,770)
Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, before Reclassification Adjustments, Tax	400		2,000
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	1,900		600
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, Tax	1,800		300
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax	300		300
Defined Benefit Plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, at beginning of year	(14,180)		(10,840)
Net unrealized gains (losses) arising during the period	(1,320)	[1]	(4,040)	[2]
Less: Net realized gains reclassified to net income	(3,130)	[3]	(700)	[4]
Accumulated Other Comprehensive Income (Loss), Attributed to Spin-off	0
Balance, at end of year	(12,370)		(14,180)		(10,840)
Derivative Instruments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, at beginning of year	610		1,060
Net unrealized gains (losses) arising during the period	(3,610)	[1]	(900)	[2]
Less: Net realized gains reclassified to net income	(960)	[3]	(450)	[4]
Accumulated Other Comprehensive Income (Loss), Attributed to Spin-off	250
Balance, at end of year	(1,790)		610		1,060
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, at beginning of year	23,790		37,610
Net unrealized gains (losses) arising during the period	(12,370)		(15,090)
Less: Net realized gains reclassified to net income	0		(1,270)
Accumulated Other Comprehensive Income (Loss), Attributed to Spin-off	(8,560)
Balance, at end of year	$ 2,860		$ 23,790		$ 37,610

[1] Defined benefit plans, net of income tax expense of $0.4 million. See Note 16, "Employee Benefit Plans," for additional details. Derivative instruments, net of income tax expense of $1.9 million. See Note 13, "Derivative Instruments," for further details.

[2] Defined benefit plans, net of income tax expense of $2.0 million. See Note 16, "Employee Benefit Plans," for additional details. Derivative instruments, net of income tax expense of $0.6 million. See Note 13, "Derivative Instruments," for further details.

[3] Defined benefit plans, net of income tax expense of $1.8 million. See Note 16, "Employee Benefit Plans," for additional details. Derivative instruments, net of income tax expense of $0.3 million. See Note 13, "Derivative Instruments," for further details

[4] Defined benefit plans, net of income tax expense of $0.3 million. See Note 16, "Employee Benefit Plans," for additional details. Derivative instruments, net of income tax expense of $0.3 million. See Note 13, "Derivative Instruments," for further details.