Acquisitions - Acquisition-Related Expense (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | |||
---|---|---|---|---|---|
Feb. 29, 2016 |
Feb. 28, 2015 |
Feb. 29, 2016 |
Feb. 28, 2015 |
May. 31, 2015 |
|
Acquisitions | |||||
Decrease of acquisition-related contingent consideration liabilities | $ (1,292) | $ (3,266) | |||
Acquisition related costs | $ 100 | $ 200 | 200 | 200 | |
Contingent consideration | 3,800 | 3,800 | $ 6,400 | ||
Fiscal 2016 Acquisitions | |||||
Acquisitions | |||||
Decrease of acquisition-related contingent consideration liabilities | $ 200 | $ 1,300 | |||
Fiscal 2015 Acquisitions | |||||
Acquisitions | |||||
Decrease of acquisition-related contingent consideration liabilities | $ 1,700 | $ 3,300 |