Acquisitions - Narrative (Details) - USD ($) $ in Thousands |
Jan. 24, 2017 |
Mar. 31, 2019 |
Mar. 31, 2018 |
Jun. 30, 2017 |
Mar. 31, 2017 |
---|---|---|---|---|---|
Business Acquisition [Line Items] | |||||
Income tax uncertainty | $ 11,509 | $ 11,787 | $ 11,600 | ||
Goodwill | $ 1,581,160 | $ 1,581,146 | |||
Aquilent | |||||
Business Acquisition [Line Items] | |||||
Total purchase consideration paid at closing | $ 253,600 | ||||
Customer-relationship intangible assets | 69,000 | ||||
Tax indemnification liability | 13,554 | $ 13,600 | |||
Income tax uncertainty | 10,221 | ||||
Goodwill | 199,826 | ||||
Customer relationships | Aquilent | |||||
Business Acquisition [Line Items] | |||||
Customer-relationship intangible assets | $ 69,000 | ||||
Finite-lived intangible asset, useful life (in years) | 12 years |