Organization and Nature of Business (Details) - USD ($)		9 Months Ended
	Nov. 06, 2018	Sep. 30, 2018	Sep. 30, 2017
Debt Instrument [Line Items]
Proceeds from related party equity contribution		$ 0	$ 32,000,000
Largest stockholder
Debt Instrument [Line Items]
Current financing available		$ 333,000,000
Subsequent Event | KH 2018 Preferred Stock Commitment Letter [Member] | Kien Huat Realty III Limited [Member] | Series F Preferred Stock [Member]
Debt Instrument [Line Items]
Share Purchase Agreement, Maximum Purchase Amount	$ 126,000,000
Preferred Stock, Par or Stated Value Per Share	$ 0.01
Proceeds from related party equity contribution	$ 29,000,000
Funding Fee, Percent	1.00%
Subsequent Event | Share Purchase Program Schedule, Period One [Member] | KH 2018 Preferred Stock Commitment Letter [Member] | Kien Huat Realty III Limited [Member] | Series F Preferred Stock [Member]
Debt Instrument [Line Items]
Share Purchase Agreement, Maximum Purchase Amount	$ 12,000,000
Subsequent Event | Share Purchase Program Schedule, Period Two [Member] | KH 2018 Preferred Stock Commitment Letter [Member] | Kien Huat Realty III Limited [Member] | Series F Preferred Stock [Member]
Debt Instrument [Line Items]
Share Purchase Agreement, Maximum Purchase Amount	20,000,000
Subsequent Event | Share Purchase Program Schedule, Period Three [Member] | KH 2018 Preferred Stock Commitment Letter [Member] | Kien Huat Realty III Limited [Member] | Series F Preferred Stock [Member]
Debt Instrument [Line Items]
Share Purchase Agreement, Maximum Purchase Amount	20,000,000
Subsequent Event | Share Purchase Program Schedule, Period Four [Member] | KH 2018 Preferred Stock Commitment Letter [Member] | Kien Huat Realty III Limited [Member] | Series F Preferred Stock [Member]
Debt Instrument [Line Items]
Share Purchase Agreement, Maximum Purchase Amount	15,000,000
Subsequent Event | Share Purchase Program Schedule, Period Five [Member] | KH 2018 Preferred Stock Commitment Letter [Member] | Kien Huat Realty III Limited [Member] | Series F Preferred Stock [Member]
Debt Instrument [Line Items]
Share Purchase Agreement, Maximum Purchase Amount	37,000,000
Subsequent Event | Share Purchase Program Schedule, Period Six [Member] | KH 2018 Preferred Stock Commitment Letter [Member] | Kien Huat Realty III Limited [Member] | Series F Preferred Stock [Member]
Debt Instrument [Line Items]
Share Purchase Agreement, Maximum Purchase Amount	$ 22,000,000