Debt - Schedule of Terms and Carrying Value of Debt Instrument (Detail)
In Millions, unless otherwise specified
9 Months Ended 9 Months Ended 9 Months Ended 9 Months Ended 9 Months Ended 0 Months Ended 9 Months Ended 9 Months Ended 9 Months Ended 9 Months Ended 9 Months Ended 0 Months Ended 9 Months Ended 9 Months Ended
Feb. 28, 2014
USD ($)
May 31, 2013
USD ($)
Feb. 28, 2014
Revolving Credit Facility [Member]
Asset-based revolving credit facility, 25-Jul-17 [Member]
USD ($)
Feb. 28, 2014
Line of Credit [Member]
European facilities [Member]
USD ($)
Feb. 28, 2014
Line of Credit [Member]
European facilities [Member]
EUR (€)
May 31, 2013
Line of Credit [Member]
European facilities [Member]
USD ($)
May 31, 2013
Line of Credit [Member]
European facilities [Member]
EUR (€)
Feb. 28, 2014
Line of Credit [Member]
China Facility [Member]
USD ($)
Feb. 28, 2014
Line of Credit [Member]
China Facility [Member]
USD [Member]
USD ($)
May 31, 2013
Line of Credit [Member]
China Facility [Member]
USD [Member]
USD ($)
Feb. 28, 2014
Line of Credit [Member]
China Facility [Member]
USD [Member]
LIBOR [Member]
Feb. 28, 2014
Line of Credit [Member]
Revolving Credit Facility [Member]
Cash flow revolving credit facility, 25-Apr-17 [Member]
USD ($)
May 31, 2013
Line of Credit [Member]
Revolving Credit Facility [Member]
Cash flow revolving credit facility, 25-Apr-17 [Member]
USD ($)
Feb. 28, 2014
Line of Credit [Member]
Revolving Credit Facility [Member]
Cash flow revolving credit facility, 25-Apr-17 [Member]
LIBOR [Member]
Feb. 28, 2014
Line of Credit [Member]
Revolving Credit Facility [Member]
Asset-based revolving credit facility, 25-Jul-17 [Member]
USD ($)
Feb. 28, 2014
Line of Credit [Member]
Revolving Credit Facility [Member]
Asset-based revolving credit facility, 25-Jul-17 [Member]
EUR (€)
May 31, 2013
Line of Credit [Member]
Revolving Credit Facility [Member]
Asset-based revolving credit facility, 25-Jul-17 [Member]
USD ($)
Feb. 28, 2014
Line of Credit [Member]
Revolving Credit Facility [Member]
Asset-based revolving credit facility, 25-Jul-17 [Member]
LIBOR [Member]
Sep. 25, 2013
Term Loan [Member]
USD [Member]
LIBOR [Member]
Feb. 28, 2014
Term Loan [Member]
Term loan facility, 25-Mar-15 [Member]
USD [Member]
USD ($)
May 31, 2013
Term Loan [Member]
Term loan facility, 25-Mar-15 [Member]
USD [Member]
USD ($)
Feb. 28, 2014
Term Loan [Member]
Term loan facility, 25-Mar-15 [Member]
USD [Member]
LIBOR [Member]
Feb. 28, 2014
Term Loan [Member]
Term loan facility, 25-Mar-15 [Member]
EUR [Member]
USD ($)
Feb. 28, 2014
Term Loan [Member]
Term loan facility, 25-Mar-15 [Member]
EUR [Member]
EUR (€)
May 31, 2013
Term Loan [Member]
Term loan facility, 25-Mar-15 [Member]
EUR [Member]
USD ($)
May 31, 2013
Term Loan [Member]
Term loan facility, 25-Mar-15 [Member]
EUR [Member]
EUR (€)
Feb. 28, 2014
Term Loan [Member]
Term loan facility, 25-Mar-15 [Member]
EUR [Member]
LIBOR [Member]
Feb. 28, 2014
Term Loan [Member]
Term loan facility, 25-Jul-17 [Member]
USD [Member]
USD ($)
May 31, 2013
Term Loan [Member]
Term loan facility, 25-Jul-17 [Member]
USD [Member]
USD ($)
Feb. 28, 2014
Term Loan [Member]
Term loan facility, 25-Jul-17 [Member]
USD [Member]
LIBOR [Member]
Feb. 28, 2014
Term Loan [Member]
Term loan facility, 25-Jul-17 [Member]
EUR [Member]
USD ($)
Feb. 28, 2014
Term Loan [Member]
Term loan facility, 25-Jul-17 [Member]
EUR [Member]
EUR (€)
May 31, 2013
Term Loan [Member]
Term loan facility, 25-Jul-17 [Member]
EUR [Member]
USD ($)
May 31, 2013
Term Loan [Member]
Term loan facility, 25-Jul-17 [Member]
EUR [Member]
EUR (€)
Feb. 28, 2014
Term Loan [Member]
Term loan facility, 25-Jul-17 [Member]
EUR [Member]
LIBOR [Member]
Aug. 02, 2012
Term Loan [Member]
Asset-based revolving credit facility, 25-Jul-17 [Member]
Feb. 28, 2014
Senior notes [Member]
6.500% senior notes due 2020 [Member]
USD ($)
May 31, 2013
Senior notes [Member]
6.500% senior notes due 2020 [Member]
USD ($)
Aug. 08, 2012
Senior notes [Member]
6.500% senior notes due 2020 [Member]
Feb. 28, 2014
Senior Subordinated Notes [Member]
6.500% senior notes due 2020 [Member]
Feb. 28, 2014
Senior Subordinated Notes [Member]
6.500% senior subordinated notes due 2020 [Member]
USD ($)
May 31, 2013
Senior Subordinated Notes [Member]
6.500% senior subordinated notes due 2020 [Member]
USD ($)
Debt Instrument [Line Items]                                                                                    
Maturity period of term loan under the credit facility                 Jan. 16, 2016     Apr. 25, 2017     Jul. 25, 2017 Jul. 25, 2017       Mar. 25, 2015     Mar. 25, 2015 Mar. 25, 2015       Jul. 25, 2017     Jul. 25, 2017 Jul. 25, 2017       Jul. 25, 2017 Aug. 01, 2020     Oct. 01, 2020 Oct. 01, 2020  
Interest rate description       Interest free Interest free                                                                          
Interest rate                                                                         6.50%   6.50% 6.50% 6.50%  
Debt instruments basis spread on variable rate                     2.10%     3.50%       1.75% 3.50%     3.00%         3.00%     3.50%         4.00%              
Premium on notes $ 33.8 $ 37.7                                                                                
Total debt $ 5,831.7 $ 5,966.4 $ 100.0 $ 0 € 0 $ 2.3 € 1.8 $ 2.3 $ 2.3 $ 6.0   $ 0 $ 0   $ 100.0 € 0 $ 0     $ 103.5 $ 104.3   $ 0 € 0 $ 217.9 € 167.8   $ 2,967.1 $ 2,116.8   $ 0 € 0 $ 856.4 € 659.4     $ 1,825.0 $ 1,825.0     $ 800.0 $ 800.0