Other Comprehensive Income (Details) (USD $)	12 Months Ended
	Dec. 31, 2013		Dec. 31, 2012	Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, December 31, 2012	$ 39,260,000
Net unrealized gains (losses) arising during the period	(3,690,000)
Less: Net realized gains reclassified to net income	7,740,000
Other Comprehensive Income (Loss), Net of Tax	(11,430,000)		(320,000)	(6,480,000)
Balance, December 31, 2013	27,830,000		39,260,000
Other Comprehensive (Income) Loss, Reclassification Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, Tax	400,000
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax	400,000
Defined Benefit Plans
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, December 31, 2012	(12,440,000)
Net unrealized gains (losses) arising during the period	800,000
Less: Net realized gains reclassified to net income	(800,000)	[1]
Other Comprehensive Income (Loss), Net of Tax	1,600,000
Balance, December 31, 2013	(10,840,000)
Derivative Instruments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, December 31, 2012	(1,680,000)
Net unrealized gains (losses) arising during the period	3,370,000
Less: Net realized gains reclassified to net income	630,000	[1]
Other Comprehensive Income (Loss), Net of Tax	2,740,000
Balance, December 31, 2013	1,060,000
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, December 31, 2012	53,380,000
Net unrealized gains (losses) arising during the period	(7,860,000)
Less: Net realized gains reclassified to net income	7,910,000
Other Comprehensive Income (Loss), Net of Tax	(15,770,000)
Balance, December 31, 2013	$ 37,610,000

[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 $0.4 million. See Note 13, "Derivative Instruments," for further details.