Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value(Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017	Mar. 31, 2017
Measured at fair value on a recurring basis:
Restricted cash	$ 19,394	$ 21,090	$ 18,831
Level 3
Disclosed at fair value:
Mortgage notes, term loans and construction loan	1,435,944	1,807,199
Measured at fair value on a recurring basis | Level 1
Measured at fair value on a recurring basis:
Cash and cash equivalents	193,868	48,873
Restricted cash	19,394	21,090
Measured at fair value on a recurring basis | Level 2 | Interest Rate Swap
Measured at fair value on a recurring basis:
Interest rate swap liability	2,399	2,463
Measured at fair value on a non-recurring basis | Level 3
Long-lived assets written down:
Property, plant and equipment	$ 0	$ 2,576