Stockholder's Equity (Details 2) - USD ($)		Jun. 30, 2015	Dec. 31, 2014	Jun. 30, 2014	Dec. 31, 2013
Summary of accumulated other comprehensive income/(loss) [Line Items]
Unrecognized losses on cash flow hedges		$ (2,347,000)	$ (650,000)	$ (4,187,000)	$ (5,059,000)
Unrecognized losses on equity investments		(15,100,000)	0	0	(389,000)
Unrecognized gains (losses) on foreign currency translation		(62,634,000)	(74,770,000)	(13,003,000)	(17,631,000)
Unrecognized actuarial losses		(1,589,000)	(1,589,000)	(1,452,000)	(1,452,000)
Totals		(81,670,000)	$ (77,009,000)	(18,642,000)	$ (24,531,000)
Other comprehensive income before reclassification adjustments
Summary of accumulated other comprehensive income/(loss) [Line Items]
Unrecognized losses on cash flow hedges		(2,625,000)		(7,000)
Unrecognized losses on equity investments		(15,100,000)		389,000
Unrecognized gains (losses) on foreign currency translation		12,136,000		4,628,000
Unrecognized actuarial losses		0		0
Totals		(5,589,000)		5,010,000
Reclassification amount to net income
Summary of accumulated other comprehensive income/(loss) [Line Items]
Unrecognized losses on cash flow hedges	[1]	928,000		879,000
Unrecognized losses on equity investments		0		0
Unrecognized gains (losses) on foreign currency translation	[1]	0		0
Unrecognized actuarial losses		0		0
Totals		928,000		879,000
Net current period other comprehensive income
Summary of accumulated other comprehensive income/(loss) [Line Items]
Unrecognized losses on cash flow hedges		(1,697,000)		872,000
Unrecognized losses on equity investments		(15,100,000)		389,000
Unrecognized gains (losses) on foreign currency translation		12,136,000		4,628,000
Unrecognized actuarial losses		0		0
Totals		$ (4,661,000)		$ 5,889,000

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