Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details 4)

v3.7.0.1
Fair Value Measurements (Details 4) - Fair value measurement on a nonrecurring basis
$ in Thousands
 3 Months Ended
Mar. 31, 2017
USD ($)
Significant Unobservable Inputs (Level 3) | Discounted cash flow  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Fair Values on Measurement Date $ 37,604
Significant Unobservable Inputs (Level 3) | Yield analyses  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Fair Values on Measurement Date $ 2,482
Investor yield requirement (percent) 9.00%
Assets held for sale, net  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Fair Values on Measurement Date $ 40,086
Assets held for sale, net | Significant Unobservable Inputs (Level 3)  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Fair Values on Measurement Date $ 40,086
Minimum | Significant Unobservable Inputs (Level 3) | Discounted cash flow  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Discount rate (percent) 9.30%
Terminal capitalization rate (percent) 8.30%
Maximum | Significant Unobservable Inputs (Level 3) | Discounted cash flow  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Discount rate (percent) 11.30%
Terminal capitalization rate (percent) 11.40%
Weighted Average | Significant Unobservable Inputs (Level 3) | Discounted cash flow  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Discount rate (percent) 10.10%
Terminal capitalization rate (percent) 8.60%