Supplemental Cash Flow Information (Tables)

12 Months Ended

Jan. 31, 2015

Supplemental Cash Flow Information [Abstract]

Supplemental Cash Flow Information-Schedule of Cash Paid During Year

Cash paid during the year for:

	Years Ended January 31,
(in thousands)	2015		2014		2013
Interest, net of interest capitalization	$	59,668	$	58,532	$	49,785
Income taxes	$	133,430	$	160,736	$	266,829

Supplemental Cash Flow Information - Supplemental Noncash Investing and Financing Activities

Supplemental noncash investing and financing activities:

	Years Ended January 31,
(in thousands)	2015		2014	2013
Issuance of Common Stock under the Employee Profit Sharing and Retirement Savings Plan	$	3,925	$	$	3,150