XML 59 R46.htm IDEA: XBRL DOCUMENT v3.10.0.1
Fair Value Measurements (Carrying Value And The Estimated Fair Value Of Company Debt) (Details) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Senior Secured Loan, Total Fair Value $ 55,000  
Senior Secured Loan, Carrying Value 54,198  
Debt, Total Fair Value 455,851 $ 459,048
Debt, Carrying Value 466,457 461,683
Significant Other Observable Inputs (Level 2) [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Senior Secured Loan, Total Fair Value 55,000  
Debt, Total Fair Value $ 455,851 $ 459,048