Annual report pursuant to Section 13 and 15(d)

Discontinued Operations - Narrative (Details)

v3.20.1
Discontinued Operations - Narrative (Details)
12 Months Ended
Jul. 01, 2018
USD ($)
Apr. 29, 2018
agreement
Mar. 31, 2020
USD ($)
Mar. 31, 2019
USD ($)
Mar. 31, 2018
USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Number of disposition agreements | agreement   2      
Discontinued Operations          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Loss on impairment of goodwill     $ 0 $ 0 $ 34,045,000
DT APAC And DT Singapore | Discontinued Operations          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Estimated earn out $ 0        
Gain on disposal $ 0        
Period of continuing involvement after disposal 3 years        
DT Media | Discontinued Operations          
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]          
Goodwill netted against consideration       $ 0