Comprehensive income (Tables)

9 Months Ended

Jul. 31, 2011

Comprehensive income (Tables) [Abstract]

Summary of comprehensive income

	Three Months Ended
	July 31, 2011			July 31, 2010
Net income	$	56,550		$	55,329
Foreign currency translation adjustments		(2,053	)		(126	)
Amortization of prior service cost and net actuarial losses		1,527			1,158
Comprehensive income	$	56,024		$	56,361

Comprehensive income for the nine months ended July 31, 2011 and 2010 is as follows:

	Nine Months Ended
	July 31, 2011		July 31, 2010
Net income	$	167,689	$	114,492
Foreign currency translation adjustments		12,792		(27,044	)
Remeasurement of supplemental pension liability		—		(2,746	)
Settlement loss		—		5,014
Amortization of prior service cost and net actuarial losses		4,498		4,962
Comprehensive income	$	184,979	$	94,678

Components of activity for accumulated other comprehensive income

	July 31, 2011			July 31, 2010
Beginning balance	$	(66,306	)	$	(55,470	)
Current-period change		17,290			(19,814	)
Ending balance	$	(49,016	)	$	(75,284	)