Contract Acquisition Costs (Details) - USD ($)	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Mar. 31, 2020
Revenue from Contract with Customer [Abstract]
Capitalized contract cost	$ 60,500,000		$ 60,200,000
Capitalized contract cost, amortization	9,000,000.0	$ 7,600,000
Costs expensed as incurred	3,400,000	1,900,000
Contract asset impairment	$ 0	$ 0