Employee Benefit Plans - Additional Information (Detail) (USD $)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2008
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Employer 401(k) contribution (in percent), maximum	4.00%			2.00%
Provision to matching and discretionary contributions	$ 33,400,000	$ 35,200,000	$ 32,500,000
Colleague stock purchase, maximum withheld of annual colleague earning	$ 25,000
Colleague stock purchase price, price based on prevailing market price (in percent)	95.00%
Colleague stock purchase price, price subsidy by employer (in percent)	5.00%
Colleague stock purchase price, shares purchased by colleague	69,798	48,575
Maximum
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Maximum matching contribution received by colleagues, (in percent)	5.00%
Minimum
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Maximum matching contribution received by colleagues, (in percent)	3.00%