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Fair Value - Additional Information (Details) - Interest Rate Swap - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Feb. 28, 2017
Feb. 29, 2016
Nov. 30, 2016
Jan. 05, 2017
Jul. 17, 2015
Derivatives Fair Value [Line Items]          
Derivative liability, notional amount $ 250.0     $ 40.0 $ 240.0
Fixed swap interest rate 0.85%     1.16% 1.55%
Derivative maturity date Aug. 31, 2018        
Interest rate swap agreements termination minimum notification days 5 days        
Interest rate fair value ineffective portion recognized in earnings $ 0.7 $ 0.1      
Interest Rate Swap Agreements Termination Period 1 year   1 year    
Level 2          
Derivatives Fair Value [Line Items]          
Partnership long term debt carrying value of term loan facility under variable rate of debt $ 708.5   $ 384.4