Goodwill and Acquired Intangible Assets (Details 1) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	May 31, 2014
Goodwill [Roll Forward]
Goodwill at beginning of year	$ 241,299
Acquisition	267,468
Currency translation adjustments	1,718
Goodwill at end of period	510,485
Engine/Mobile Filtration [Member]
Goodwill [Roll Forward]
Goodwill at beginning of year	21,868
Acquisition	193,144
Currency translation adjustments	119
Goodwill at end of period	215,131
Industrial/Environmental Filtration [Member]
Goodwill [Roll Forward]
Goodwill at beginning of year	219,431
Acquisition	74,324
Currency translation adjustments	1,599
Goodwill at end of period	295,354
Packaging [Member]
Goodwill [Roll Forward]
Goodwill at beginning of year	0
Acquisition	0
Currency translation adjustments	0
Goodwill at end of period	$ 0