Accounts Receivable, net (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Jun. 30, 2011
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable, trade	$ 1,614,776	$ 1,780,137
Allowance for doubtful accounts	(11,721)	(10,472)
Non-trade accounts receivable	79,377	75,550
Notes receivable	145,685	132,641
Total	$ 1,828,117	$ 1,977,856