Summary of Significant Accounting Policies - Additional Information (Details) - Less unamortized deferred financing fees [Member] - USD ($) $ in Millions	Mar. 31, 2017	Dec. 31, 2016
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Notes payable, carrying amount	$ 100.0	$ 100.0
Estimate of Fair Value, Fair Value Disclosure [Member]
Organization Consolidation And Presentation Of Financial Statements [Line Items]
Notes payable, fair value disclosure	$ 99.3	$ 98.0