Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Details 4)

v3.5.0.2
Fair Value Measurements (Details 4) - Fair value measurement on a nonrecurring basis - Significant Unobservable Inputs (Level 3)
$ in Thousands
9 Months Ended
Sep. 30, 2016
USD ($)
Contracts to sell  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Fair Values on Measurement Date $ 87,983
Discounted cash flow  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Fair Values on Measurement Date 36,693
Yield analyses  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Fair Values on Measurement Date $ 2,452
Investor yield requirement (percent) 9.00%
Minimum | Discounted cash flow  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Discount rate (percent) 9.50%
Terminal capitalization rate (percent) 8.30%
Maximum | Discounted cash flow  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Discount rate (percent) 11.30%
Terminal capitalization rate (percent) 9.50%
Weighted Average | Discounted cash flow  
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]  
Discount rate (percent) 10.50%
Terminal capitalization rate (percent) 8.70%