Derivative Financial Instruments - Summary of Effect of Derivative Financial Instruments on Consolidated Statements of Operations (Parenthetical) (Detail)	12 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($) Contract
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Gain on termination of residual interest rate swaps			$ 136,000
Number of interest rate swap agreements terminated | Contract			5
Net Investment Hedges [Member] | Foreign Currency Contracts [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net cash settlements on our foreign currency forward contracts	$ 18,800,000	$ 0	$ 0
Interest Rate Swaps [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Interest rate swaps, termination period			2013-06