Derivative Financial Instruments - Additional Information (Detail) (Cash Flow Hedging [Member], Interest Rate Caps [Member], USD $)	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012
Cash Flow Hedging [Member] \| Interest Rate Caps [Member]
Derivative [Line Items]
Interest rate hedges designated and qualifying as a cash flow hedge	$ (74,000)	$ 42,000

The effective portion of gains and losses (net) on derivative instruments designated and qualifying as hedging instruments that was recognized in other comprehensive income during the current period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 815

-SubTopic 10

-Section 50

-Paragraph 4C

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959

Name:	us-gaap_DerivativeInstrumentsGainLossRecognizedInOtherComprehensiveIncomeEffectivePortionNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration