XML 85 R49.htm IDEA: XBRL DOCUMENT

Reasons for Differences between Company's Effective Tax Rate and Statutory U.S. Federal Income Tax Rate (Detail)	12 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2011
Reconciliation of Effective Income Tax Rate [Line Items]
Expected provision at statutory U.S. federal tax rate	35.00%	35.00%	35.00%
State and local income taxes, net of federal tax benefit	3.10%	3.20%	3.20%
Foreign taxes	(1.70%)	(2.10%)	(2.10%)
Other	0.40%	(0.20%)	(1.50%)
Effective tax rate	36.80%	35.90%	34.60%

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

+ References+ Details

- Definition

The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

+ References+ Details