Summary of Significant Accounting Policies and Procedures - Summary of Interest Rate Swaps Outstanding (Detail) - Interest Rate Swap [Member] $ in Thousands	12 Months Ended
	Dec. 31, 2015 USD ($)
Derivatives Fair Value [Line Items]
Derivative, Notional Amount	$ 640,628
Derivative Liability, Fair Value, Gross Liability	11,544
Gross Losses	$ 11,544