Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Schedule of Minimum Lease Commitments

The total minimum lease commitments, under ground-leases and operating leases, for each of the years ending December 31 is summarized as follows ($ in thousands):

	Total Minimum
	Lease Commitments
2018	$	4,723
2019	4,782
2020	4,842
2021	4,905
2022	4,970
Thereafter	112,361
	$	136,583