Quarterly Financial Information (Tables)

12 Months Ended

Jul. 31, 2013

Quarterly Financial Information [Abstract]

Quarterly Financial Information

	First		Second		Third		Fourth
	Quarter		Quarter		Quarter		Quarter
	(thousands of dollars)
2013
Net sales	$	588,947	$	596,036	$	619,371	$	632,594
Gross margin		198,293		198,977		221,501		228,356
Net earnings		54,113		50,813		69,842		72,609
Basic earnings per share		0.36		0.34		0.47		0.49
Diluted earnings per share		0.36		0.34		0.46		0.48
Dividends declared per share		0.090		0.100		0.130		0.130
Dividends paid per share		0.090		0.090		0.100		0.130
2012
Net sales	$	608,295	$	580,883	$	647,237	$	656,833
Gross margin		214,934		200,817		228,229		229,783
Net earnings		68,553		53,821		70,946		70,981
Basic earnings per share		0.46		0.36		0.47		0.47
Diluted earnings per share		0.45		0.35		0.46		0.47
Dividends declared per share		0.075		0.080		0.090		0.090
Dividends paid per share		0.075		0.075		0.080		0.090