Goodwill and Intangible Assets - Other Intangibles Assets (Detail) - USD ($)
$ in Thousands |
3 Months Ended |
9 Months Ended |
|
Apr. 30, 2020 |
Oct. 31, 2019 |
Apr. 30, 2019 |
Apr. 30, 2020 |
Apr. 30, 2019 |
Jul. 31, 2019 |
| Other Intangible Assets [Line Items] |
|
|
|
|
|
|
| Gross Carrying Amount |
$ 56,594
|
|
|
$ 56,594
|
|
$ 65,466
|
| Accumulated Amortization |
(33,150)
|
|
|
(33,150)
|
|
(29,343)
|
| Net Book Value |
23,444
|
|
|
23,444
|
|
36,123
|
| Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract] |
|
|
|
|
|
|
| Amortization of Intangible Assets |
1,290
|
|
$ 1,443
|
3,872
|
$ 4,314
|
|
| Finite-Lived Intangible Assets, Amortization Expense, Next Twelve Months |
5,218
|
|
|
5,218
|
|
|
| Finite-Lived Intangible Assets, Amortization Expense, Year Two |
5,384
|
|
|
5,384
|
|
|
| Finite-Lived Intangible Assets, Amortization Expense, Year Three |
5,109
|
|
|
5,109
|
|
|
| Finite-Lived Intangible Assets, Amortization Expense, Year Four |
2,191
|
|
|
2,191
|
|
|
| Finite-Lived Intangible Assets, Amortization Expense, Year Five |
0
|
|
|
$ 0
|
|
|
| Customer relationships and other |
|
|
|
|
|
|
| Other Intangible Assets [Line Items] |
|
|
|
|
|
|
| Weighted Average Amortization Period |
|
9 years
|
|
8 years
|
|
|
| Gross Carrying Amount |
47,180
|
|
|
$ 47,180
|
|
46,595
|
| Accumulated Amortization |
(33,150)
|
|
|
(33,150)
|
|
(29,343)
|
| Net Book Value |
14,030
|
|
|
14,030
|
|
17,252
|
| Tradenames |
|
|
|
|
|
|
| Other Intangible Assets [Line Items] |
|
|
|
|
|
|
| Gross Carrying Amount |
9,414
|
|
|
9,414
|
|
18,871
|
| Accumulated Amortization |
0
|
|
|
0
|
|
0
|
| Net Book Value |
$ 9,414
|
|
|
$ 9,414
|
|
$ 18,871
|