Goodwill (Details) $ in Thousands	9 Months Ended
	Jul. 31, 2015 USD ($)
Changes in Goodwill
Goodwill at the beginning of the period	$ 91,851
Goodwill acquired	103,028
Translation adjustments	(152)
Goodwill at the end of the period	194,727
Professional
Changes in Goodwill
Goodwill at the beginning of the period	80,946
Goodwill acquired	103,028
Translation adjustments	(46)
Goodwill at the end of the period	183,928
Residential
Changes in Goodwill
Goodwill at the beginning of the period	10,905
Translation adjustments	(106)
Goodwill at the end of the period	$ 10,799