XML 54 R38.htm IDEA: XBRL DOCUMENT

Schedule of Revenues and Long-Lived Assets, by Domestic and Foreign Operations Segment (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2014	Jul. 31, 2013	Jan. 31, 2014
Segment Reporting Information [Line Items]
Total property and equipment, net	$ 868,642	$ 731,421	$ 868,642	$ 731,421	$ 806,909
Total net sales	811,253	758,524	1,497,563	1,406,701
Domestic Operations
Segment Reporting Information [Line Items]
Total property and equipment, net	712,987	589,834	712,987	589,834	655,866
Total net sales	701,763	661,486	1,302,675	1,231,053
Foreign Operations
Segment Reporting Information [Line Items]
Total property and equipment, net	155,655	141,587	155,655	141,587	151,043
Total net sales	$ 109,490	$ 97,038	$ 194,888	$ 175,648