Contractual Commitments Associated with Indebtedness, Lease Obligations and Restructuring (Detail) (USD $) In Thousands, unless otherwise specified	Aug. 31, 2012
Commitments and Contingencies [Line Items]
Debt principal	$ 636,323
Debt interest	69,280
Operating leases	40,207	[1]
Total commitments	745,810
Remainder Of 2012
Commitments and Contingencies [Line Items]
Debt principal	612
Debt interest	7,247
Operating leases	2,476	[1]
Total commitments	10,335
2013
Commitments and Contingencies [Line Items]
Debt principal	35,711
Debt interest	14,783
Operating leases	11,301	[1]
Total commitments	61,795
2014
Commitments and Contingencies [Line Items]
Debt interest	13,500
Operating leases	7,992	[1]
Total commitments	21,492
2015
Commitments and Contingencies [Line Items]
Debt interest	13,500
Operating leases	9,472	[1]
Total commitments	22,972
2016
Commitments and Contingencies [Line Items]
Debt interest	13,500
Operating leases	4,230	[1]
Total commitments	17,730
Thereafter
Commitments and Contingencies [Line Items]
Debt principal	600,000
Debt interest	6,750
Operating leases	4,736	[1]
Total commitments	$ 611,486

[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.