Quarterly report pursuant to Section 13 or 15(d)

Unsecured Lines of Credit Payable - Borrowings and Repayments (Details)

v3.8.0.1
Unsecured Lines of Credit Payable - Borrowings and Repayments (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2018
USD ($)
Line of Credit Facility, Increase (Decrease) During the Period [Roll Forward]  
Balance at December 31, 2017 $ 166,000
Balance at March 31, 2018 260,000
Line of Credit | Credit facility 2018 [Member]  
Line of Credit Facility, Increase (Decrease) During the Period [Roll Forward]  
Balance at December 31, 2017 166,000
Borrowings 290,000
Repayments (196,000)
Balance at March 31, 2018 $ 260,000