Basis of Presentation (Details)	3 Months Ended
	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)	Dec. 31, 2015 USD ($)
Accounting Policies [Abstract]
Net loss attributable to common shareholders	$ (36,625,000)	$ (63,232,000)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net Income (Loss) Attributable to Noncontrolling Interest	33,500,000
Long-term Debt	$ 1,222,065,000		$ 1,245,000,000
Restructuring and Related Cost, Number of Positions Eliminated	10
Severance and Termination Benefits	$ 0.8
General and Administrative Expense [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Restructuring and Related Cost, Professional Fees	11,100,000
Restructuring and Related Cost, Advisory Fees	7,800,000
Restructuring and Related Cost, Bank and Unsecured Noteholders	3,300,000
Severance and Termination Benefits	400,000
Accounts Payable and Accrued Liabilities
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Severance and Termination Benefits	$ 400,000