Basis of Presentation (Details) $ in Thousands	1 Months Ended		3 Months Ended		6 Months Ended
	Jun. 30, 2016 USD ($)	Feb. 29, 2016 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2015 USD ($)	Dec. 31, 2015 USD ($)
Accounting Policies [Abstract]
Net loss attributable to common shareholders			$ (64,800)	$ (86,196)	$ (101,425)	$ (149,428)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Long-term Debt	$ 1,187,553		$ 1,187,553		$ 1,187,553		$ 1,245,000
Restructuring and Related Cost, Number of Positions Eliminated	18	10
Severance and Termination Benefits	$ 300	$ 800