Contractual Commitments Associated with Indebtedness, Lease Obligations and Restructuring (Detail) (USD $) In Thousands, unless otherwise specified	May 31, 2012
Commitments and Contingencies [Line Items]
Debt principal	$ 637,513
Debt interest	70,602
Operating leases	34,455	[1]
Total commitments	742,570
Remainder Of 2012
Commitments and Contingencies [Line Items]
Debt principal	1,802
Debt interest	8,569
Operating leases	5,421	[1]
Total commitments	15,792
2013
Commitments and Contingencies [Line Items]
Debt principal	35,711
Debt interest	14,783
Operating leases	9,807	[1]
Total commitments	60,301
2014
Commitments and Contingencies [Line Items]
Debt interest	13,500
Operating leases	6,946	[1]
Total commitments	20,446
2015
Commitments and Contingencies [Line Items]
Debt interest	13,500
Operating leases	4,735	[1]
Total commitments	18,235
2016
Commitments and Contingencies [Line Items]
Debt interest	13,500
Operating leases	3,553	[1]
Total commitments	17,053
Thereafter
Commitments and Contingencies [Line Items]
Debt principal	600,000
Debt interest	6,750
Operating leases	3,993	[1]
Total commitments	$ 610,743

[1] Operating leases included future minimum rent payments, net of estimated sublease income, for facilities that we have vacated pursuant to our restructuring activities, as discussed in Note 7.