Accumulated Other Comprehensive Income (Loss) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance,			$ (177)
Other comprehensive income (loss), net of tax	3,030	(345)	(5,468)	(2,672)
Ending balance,	(5,645)		(5,645)
Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance,	651	(1,352)	648	(1,424)
Other comprehensive income (loss) before reclassifications and tax	0	0	0	0
Tax impact	0	0	0	0
Reclassification adjustments, before tax	5	111	10	223
Tax impact	(2)	(39)	(4)	(79)
Other comprehensive income (loss), net of tax	3	72	6	144
Ending balance,	654	(1,280)	654	(1,280)
Accumulated Net Unrealized Investment Gain Loss [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance,	4,011	3,058	4,504	5,461
Other comprehensive income (loss) before reclassifications and tax	775	1,046	417	1,943
Tax impact	(297)	(398)	(176)	(739)
Reclassification adjustments, before tax	640	(66)	239	(4,842)
Tax impact	(246)	25	(101)	1,842
Other comprehensive income (loss), net of tax	872	607	379	(1,796)
Ending balance,	4,883	3,665	4,883	3,665
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance,	(13,337)	(110)	(5,329)	(114)
Other comprehensive income (loss) before reclassifications and tax	3,495	(1,651)	(9,550)	(1,646)
Tax impact	(1,340)	627	3,697	626
Reclassification adjustments, before tax	0	0	0	0
Tax impact	0	0	0	0
Other comprehensive income (loss), net of tax	2,155	(1,024)	(5,853)	(1,020)
Ending balance,	(11,182)	(1,134)	(11,182)	(1,134)
Total [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
Beginning balance,	(8,675)	1,596	(177)	3,923
Other comprehensive income (loss) before reclassifications and tax	4,270	(605)	(9,133)	297
Tax impact	(1,637)	229	3,521	(113)
Reclassification adjustments, before tax	645	45	249	(4,619)
Tax impact	(248)	(14)	(105)	1,763
Other comprehensive income (loss), net of tax	3,030	(345)	(5,468)	(2,672)
Ending balance,	$ (5,645)	$ 1,251	$ (5,645)	$ 1,251