Equity - Summary of the Components of Changes in Accumulated Other Comprehensive Income (Detail) (USD $)	3 Months Ended
	Mar. 31, 2014
Accumulated Other Comprehensive Income Loss [Line Items]
Balance at January 1, 2014
Other comprehensive income before reclassifications	300,000
Amounts reclassified from accumulated other comprehensive income to interest expense
Net current period other comprehensive income	300,000
Less other comprehensive income attributable to noncontrolling interests	(31,000)
Other comprehensive income attributable to common stockholders	269,000
Balance at March 31, 2014	$ 269,000