Accrued Expenses and Other Liabilities - Schedule of Accrued Expense and Other Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Other Liabilities Disclosure [Abstract]
Accrued interest	$ 17,797	$ 11,107
Real estate taxes payable	16,871	16,103
Prepaid rent	12,494	10,496
Accrued expenses	4,550	8,751
Embedded derivative	3,696	0
Security deposits	2,752	2,882
Tenant improvement allowance	2,592	3,065
Accrued incentive compensation	1,964	1,625
Contingent consideration	753	1,454
Other	2,646	922
Total	$ 66,115	$ 56,405