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Fair Value Measurements and Derivative Instrument (Derivative Financial Instrument) (Details)
Feb. 02, 2015
USD ($)
$ / shares
shares
Stock Appreciation Rights (SARs)  
Derivative [Line Items]  
Expiration period 8 years
Stock Appreciation Rights (SARs) | Class A-1 Common Stock  
Derivative [Line Items]  
Rights outstanding (in shares) | shares 3,000,000
Exercise price of rights (USD per share) | $ / shares $ 13.00
Searchlight Promissory Note | Stock Appreciation Rights (SARs) | Class A-1 Common Stock  
Derivative [Line Items]  
Rights outstanding (in shares) | shares 3,000,000
Exercise price of rights (USD per share) | $ / shares $ 13.00
Unsecured Debt | Searchlight Promissory Note  
Derivative [Line Items]  
Face amount of debt | $ $ 75,000,000