Summary of Significant Accounting Policies - Schedule of Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Costs and expenses:
Total share-based compensation	$ 5,393	$ 4,891
Income tax benefit	(1,264)	(1,215)
Decrease in net income	4,129	3,676
Cost of Revenue
Costs and expenses:
Total share-based compensation	424	463
Research and Development Costs
Costs and expenses:
Total share-based compensation	917	1,028
Selling, General and Administrative
Costs and expenses:
Total share-based compensation	$ 4,052	$ 3,400