Fair Value Measurements (Details Textuals) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Sensitivity Analysis of Fair Value, Impact of 1 Percent Increase or Decrease in Level 3 Inputs	$ 100,000
Other Asset Impairment Charges	0	17,515,000	22,951,000
Long-term Debt, Fair Value	2,956,800,000	2,956,900,000
Faustina Investment Impairment [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other Asset Impairment Charges	$ 15,100,000