Related Party Transactions (Details) - USD ($)								3 Months Ended			6 Months Ended
	Jun. 25, 2019	Jun. 17, 2019	May 15, 2019	Feb. 20, 2019	Feb. 15, 2019	Nov. 13, 2018	Nov. 06, 2018	Jun. 30, 2019	Feb. 20, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	May 07, 2019
RW Services Pte Ltd [Member] | RWS License Agreement [Member]
Related Party Transaction
Related Party Transaction, Expenses from Transactions with Related Party								$ 600,000		$ 400,000	$ 1,000,000	$ 600,000
Kien Huat Realty III Limited [Member] | Series F Preferred Stock | 2018 Kien Huat Preferred Stock Commitment Letter [Member]
Related Party Transaction
Share Purchase Agreement, Maximum Purchase Amount							$ 126,000,000
Proceeds from related party equity contribution							$ 29,000,000
Funding Fee, Percent							1.00%
Preferred Stock, Shares Issued				200		120			200
Proceeds from Issuance of Preferred Stock and Preference Stock, Gross						$ 12,000,000			$ 20,000,000
Proceeds from Issuance of Preferred Stock and Preference Stock						11,900,000			19,800,000
Kien Huat Realty Limited [Member] | 2018 Kien Huat Preferred Stock Commitment Letter [Member]
Related Party Transaction
Issuance of Preferred Stock and Preference Stock, Funding Fee				$ 200,000		$ 100,000			$ 200,000
Kien Huat Realty Limited [Member] | Series F Preferred Stock | 2018 Kien Huat Preferred Stock Commitment Letter [Member]
Related Party Transaction
Preferred Stock, Shares Issued		150	270	200					200
Proceeds from Issuance of Preferred Stock and Preference Stock, Gross		$ 15,000,000	$ 27,000,000	$ 20,000,000
Issuance of Preferred Stock and Preference Stock, Funding Fee		150,000	270,000	200,000					$ 200,000
Proceeds from Issuance of Preferred Stock and Preference Stock		$ 14,800,000	$ 26,700,000	$ 19,800,000
Moelis & Company LLC [Member] | 2019 Moelis Letter Agreement [Member]
Related Party Transaction
Professional and Contract Services Expense					$ 350,000
Moelis & Company LLC [Member] | Moelis Special Committee Letter Agreement [Member]
Related Party Transaction
Related Party Transaction, Monthly Payments to Related Party	$ 150,000
Related Party Transaction, Monthly Payments Credited Against Transaction Fees, Percentage	50.00%
Share Purchase Program Schedule, Period One [Member] | Kien Huat Realty III Limited [Member] | Series F Preferred Stock | 2018 Kien Huat Preferred Stock Commitment Letter [Member]
Related Party Transaction
Share Purchase Agreement, Maximum Purchase Amount							$ 12,000,000						$ 20,000,000
Share Purchase Program Schedule, Period Two [Member] | Kien Huat Realty III Limited [Member] | Series F Preferred Stock | 2018 Kien Huat Preferred Stock Commitment Letter [Member]
Related Party Transaction
Share Purchase Agreement, Maximum Purchase Amount							20,000,000						27,000,000
Share Purchase Program Schedule, Period Three [Member] | Kien Huat Realty III Limited [Member] | Series F Preferred Stock | 2018 Kien Huat Preferred Stock Commitment Letter [Member]
Related Party Transaction
Share Purchase Agreement, Maximum Purchase Amount							20,000,000						15,000,000
Share Purchase Program Schedule, Period Four [Member] | Kien Huat Realty III Limited [Member] | Series F Preferred Stock | 2018 Kien Huat Preferred Stock Commitment Letter [Member]
Related Party Transaction
Share Purchase Agreement, Maximum Purchase Amount							15,000,000						15,000,000
Share Purchase Program Schedule, Period Five [Member] | Kien Huat Realty III Limited [Member] | Series F Preferred Stock | 2018 Kien Huat Preferred Stock Commitment Letter [Member]
Related Party Transaction
Share Purchase Agreement, Maximum Purchase Amount							37,000,000						$ 37,000,000
Share Purchase Program Schedule, Period Six [Member] | Kien Huat Realty III Limited [Member] | Series F Preferred Stock | 2018 Kien Huat Preferred Stock Commitment Letter [Member]
Related Party Transaction
Share Purchase Agreement, Maximum Purchase Amount							$ 22,000,000