Gross Carrying Amount and Accumulated Amortization of Other Intangible Assets (Details) - USD ($)
$ in Thousands |
9 Months Ended |
|
May 31, 2016 |
Aug. 31, 2015 |
| Indefinite And Finite Lived Intangible Assets [Line Items] |
|
|
| Accumulated Amortization |
$ 205,395
|
$ 165,486
|
| Other intangibles, gross |
461,316
|
474,248
|
| Other intangibles, net |
255,921
|
308,762
|
| Tradenames |
|
|
| Indefinite And Finite Lived Intangible Assets [Line Items] |
|
|
| Gross Carrying Value |
$ 95,228
|
112,437
|
| Customer relationships |
|
|
| Indefinite And Finite Lived Intangible Assets [Line Items] |
|
|
| Weighted Average Amortization Period (Years) |
14 years
|
|
| Gross Carrying Value |
$ 307,400
|
302,518
|
| Accumulated Amortization |
170,027
|
132,007
|
| Net Book Value |
$ 137,373
|
170,511
|
| Patents |
|
|
| Indefinite And Finite Lived Intangible Assets [Line Items] |
|
|
| Weighted Average Amortization Period (Years) |
10 years
|
|
| Gross Carrying Value |
$ 30,700
|
30,899
|
| Accumulated Amortization |
21,830
|
19,928
|
| Net Book Value |
$ 8,870
|
10,971
|
| Trademarks and tradenames |
|
|
| Indefinite And Finite Lived Intangible Assets [Line Items] |
|
|
| Weighted Average Amortization Period (Years) |
18 years
|
|
| Gross Carrying Value |
$ 21,233
|
21,604
|
| Accumulated Amortization |
7,658
|
7,055
|
| Net Book Value |
$ 13,575
|
14,549
|
| Other intangibles |
|
|
| Indefinite And Finite Lived Intangible Assets [Line Items] |
|
|
| Weighted Average Amortization Period (Years) |
3 years
|
|
| Gross Carrying Value |
$ 6,755
|
6,790
|
| Accumulated Amortization |
5,880
|
6,496
|
| Net Book Value |
$ 875
|
$ 294
|