Operating Segment and Geographic Information - Revenue from Continuing Operations by Geographic Region (Details) - USD ($) $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Apr. 30, 2017 |
Jan. 31, 2017 |
Oct. 31, 2016 |
Jul. 31, 2016 |
Apr. 30, 2016 |
Jan. 31, 2016 |
Oct. 31, 2015 |
Jul. 31, 2015 |
Apr. 30, 2017 |
Apr. 30, 2016 |
Apr. 30, 2015 |
|
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||||||||
| Revenue | $ 50,209 | $ 50,525 | $ 50,408 | $ 50,093 | $ 50,709 | $ 50,255 | $ 49,926 | $ 48,876 | $ 201,235 | $ 199,766 | $ 191,181 |
| Americas [Member] | |||||||||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||||||||
| Revenue | 149,330 | 150,758 | 146,086 | ||||||||
| EMEA [Member] | |||||||||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||||||||
| Revenue | 44,529 | 42,620 | 38,101 | ||||||||
| Other Geographic Area [Member] | |||||||||||
| Revenues from External Customers and Long-Lived Assets [Line Items] | |||||||||||
| Revenue | $ 7,376 | $ 6,388 | $ 6,994 | ||||||||