Derivative Financial Instruments - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net asset position of derivative counterparties	$ 135,000
Net liability position of derivative counterparties	8,800,000
Not Designated as Hedging Instrument [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Derivatives recorded losses during the period	976,000	$ 0
Interest Rate Caps [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Cash flow hedge ineffectiveness	0	$ 0
Reclassification from other accumulated comprehensive income as increase to interest expense	$ 1,300,000