Summary of Significant Accounting Policies - Disaggregation of Revenues (Details) - USD ($) $ in Thousands	1 Months Ended	2 Months Ended		3 Months Ended	13 Months Ended
	Mar. 31, 2019	Feb. 18, 2020	Feb. 18, 2019	Mar. 31, 2020	Mar. 31, 2020
Financial Designation, Predecessor and Successor [Fixed List]	Successor	Predecessor	Predecessor	Successor
Revenues	$ 3,034		$ 4,928	$ 11,276	$ 3,034
Subscriptions, support and maintenance [Member]
Revenues			3,253	7,724	2,018
Professional Services [Member]
Revenues			1,269	3,169	721
License [Member]
Revenues			383	$ 383	$ 295
Asset Sales [Member]
Revenues			$ 23