Commitments and Contingencies - Public Offering and Controlled Equity Offering and Database Usage (Details) - USD ($)		7 Months Ended	10 Months Ended
	Jan. 25, 2013	Dec. 31, 2016	Dec. 31, 2016	May 27, 2016
Other Commitments [Line Items]
Proceeds from the sale of common stock		$ 2,400,000
Payments for Fees			$ 0
Maximum | Public Offering and Controlled Equity Offering
Other Commitments [Line Items]
Aggregate initial offering price				$ 250,000,000
Selling Agents | Public Offering and Controlled Equity Offering
Other Commitments [Line Items]
Commission as a percentage of gross proceeds	3.00%
Selling Agents | Maximum | Public Offering and Controlled Equity Offering
Other Commitments [Line Items]
Aggregate initial offering price	$ 30,000,000