The Business, Basis of Presentation and Summary of Significant Accounting Policies - Recent Accounting Pronouncements (Details) - USD ($)	Dec. 31, 2016	Jun. 30, 2016	Dec. 31, 2015	Aug. 31, 2015
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Restricted cash	$ 0		$ 1,256,000	$ 1,400,000
Debt Financing Agreement
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deferred finance costs	200,000	$ 200,000
Debt instrument, face amount		$ 20,000,000.0
Accounting Standard Update 2016-18
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Restricted cash	$ 1,300,000