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Senior Notes and Unsecured Revolving Credit Facility (Tables)
 6 Months Ended
Jun. 30, 2017
Debt Disclosure [Abstract]  
Schedule of notes payable
Notes payable consisted of the following:
 
June 30,
 
December 31,
 
2017
 
2016
 
(Dollars in thousands)
7.25% Senior Notes due 2022, net
$
318,121

 
$
—

Senior unsecured revolving credit facility
—

 
118,000

Total Notes Payable
$
318,121

 
$
118,000