Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Millions |
Jun. 30, 2016 |
Dec. 31, 2015 |
---|---|---|
Summary Of Significant Accounting Policies [Line Items] | ||
Maximum Ownership Percent Consider Under Cost Method Investments | 20.00% | |
Minimum [Member] | ||
Summary Of Significant Accounting Policies [Line Items] | ||
Equity Method Investment, Ownership Percentage | 20.00% | |
Secured Debt [Member] | ||
Summary Of Significant Accounting Policies [Line Items] | ||
Deferred Finance Costs, Net | $ 5.2 | $ 3.9 |