Stockholder's Equity (Details 2) (USD $)	Sep. 30, 2013	Dec. 31, 2012	Sep. 30, 2012		Dec. 31, 2011
Accumulated Other Comprehensive Income Loss [Line Items]
Unrecognized losses on cash flow hedges	$ (5,541,000)	$ (6,957,000)	$ (7,423,000)		$ (8,561,000)
Unrecognized losses on equity investments	(562,000)	(216,000)	(427,000)		(619,000)
Unrecognized gains (losses) on foreign currency translation	(14,398,000)	(881,000)	166,000		0
Unrecognized actuarial losses	(2,974,000)	(2,974,000)	(2,748,000)		(2,748,000)
Totals	(23,475,000)	(11,028,000)	(10,432,000)		(11,928,000)
Other comprehensive income before reclassification adjustments
Accumulated Other Comprehensive Income Loss [Line Items]
Unrecognized losses on cash flow hedges	(12,000)		2,342,000
Unrecognized losses on equity investments	(346,000)		192,000
Unrecognized gains (losses) on foreign currency translation	(13,517,000)		166,000
Unrecognized actuarial losses	0		0
Totals	(13,875,000)		2,700,000
Reclassification amount to net income
Accumulated Other Comprehensive Income Loss [Line Items]
Unrecognized losses on cash flow hedges	1,428,000		(1,204,000)	[1]
Unrecognized losses on equity investments	0		0
Unrecognized gains (losses) on foreign currency translation	0		0
Unrecognized actuarial losses	0		0
Totals	1,428,000		(1,204,000)
Net current period other comprehensive income
Accumulated Other Comprehensive Income Loss [Line Items]
Unrecognized losses on cash flow hedges	1,416,000		1,138,000
Unrecognized losses on equity investments	(346,000)		192,000
Unrecognized gains (losses) on foreign currency translation	(13,517,000)		166,000
Unrecognized actuarial losses	0		0
Totals	$ (12,447,000)		$ 1,496,000

[1] (1) Please see Note 11 for additional information.