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Subsequent Event	3 Months Ended
Subsequent Event	Oct. 31, 2018
Subsequent Events [Abstract]
Subsequent Event	Subsequent Event On November 12, 2018, we entered into a definitive agreement to purchase Omnia S.p.A. (“Omnia”), an Italian-based market leader in dental surgical consumables solutions, for total consideration, excluding acquisition-related costs, of $31,900, consisting of $26,100 of cash and stock consideration (net of cash acquired), plus contingent consideration ranging from zero to a maximum of $5,800, which is payable upon the achievement of certain performance-based targets. Omnia’s business consists of a wide-ranging portfolio of sutures, irrigation tubing and customized dental surgical procedure kits, with a focus on procedure room set-up and cross-contamination prevention. Omnia will be included in our Dental segment.