Derivative Instruments and Hedging Activities - Additional Information (Detail) (USD $)	12 Months Ended	1 Months Ended		12 Months Ended
	Feb. 28, 2014	Feb. 28, 2013 Fixed to Floating Interest Rate Swap	Feb. 28, 2014 Fixed to Floating Interest Rate Swap	Feb. 28, 2014 Maximum	Feb. 28, 2014 Interest Rate Cap
Interest Rate Risk [Abstract]
Percentage of term loan portion required to fix interest rate swap					50.00%
Period which required to fix or cap interest rates	2 years
Period which requirement to fix or cap rates can be reduced to	1 year
Senior leverage ratio by May 31, 2014 to reduce the requirement to fix or cap interest rate to one year period					2.50
Increase in interest expense				$ 100,000
Interest rate swap term		2 years
Fixed rate payable on interest rate swap			0.42%
Interest Rate Swap Notional Principal Amount			40,000,000
Accumulated other comprehensive loss balance related to derivative instruments				$ 100,000