Supplemental Cash Flow Information (Tables)

9 Months Ended

Feb. 28, 2014

Supplemental Cash Flow Information [Abstract]

Schedule of Cash Flow, Supplemental Disclosures

Supplemental cash flow disclosures are as follows:

	Nine Months Ended
	February 28, 2014		February 28, 2013
	(in thousands)
Supplemental cash flow information:
Income taxes paid, net of refunds	$	72,457	$	48,966
Interest paid	$	26,100	$	22,892