Revenue Recognition - Financial Statement Impact of Adoption (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Mar. 31, 2019
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Capitalized Contract Cost, Amortization	$ 300	$ 300
Sales and marketing	4,498	4,754
Accounts receivable, net	25,690		$ 27,000
Contract assets	3,888		2,921
Prepaid expenses and other current assets	5,155		6,272
Other non-current assets	6,112		6,118
Contract liabilities	35,589		38,669
Retained earnings	91,476		$ 93,051
Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent	$ (1,575)	$ (1,736)