Intangibles and Goodwill - Goodwill Rollforward (Details) - USD ($)
|
9 Months Ended |
12 Months Ended |
Apr. 30, 2017 |
Jul. 31, 2016 |
| Changes in Goodwill |
|
|
| Balance at the beginning of the period |
$ 280,318,000
|
$ 241,951,000
|
| Acquisitions |
29,167,000
|
44,398,000
|
| Foreign currency translation |
(1,316,000)
|
(6,031,000)
|
| Balance at the end of the period |
308,169,000
|
280,318,000
|
| Endoscopy |
|
|
| Changes in Goodwill |
|
|
| Balance at the beginning of the period |
121,015,000
|
87,007,000
|
| Acquisitions |
7,178,000
|
40,047,000
|
| Foreign currency translation |
(1,113,000)
|
(6,039,000)
|
| Balance at the end of the period |
127,080,000
|
121,015,000
|
| Water Purification and Filtration |
|
|
| Changes in Goodwill |
|
|
| Balance at the beginning of the period |
58,880,000
|
58,872,000
|
| Foreign currency translation |
(203,000)
|
8,000
|
| Balance at the end of the period |
58,677,000
|
58,880,000
|
| Healthcare Disposables |
|
|
| Changes in Goodwill |
|
|
| Balance at the beginning of the period |
92,290,000
|
87,939,000
|
| Acquisitions |
21,989,000
|
4,351,000
|
| Balance at the end of the period |
114,279,000
|
92,290,000
|
| Dialysis |
|
|
| Changes in Goodwill |
|
|
| Balance at the beginning of the period |
8,133,000
|
8,133,000
|
| Balance at the end of the period |
$ 8,133,000
|
$ 8,133,000
|