Variable Interest Entities - Revenue and Expenses of Delphax Included in the Company's Consolidated Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Variable Interest Entity [Line Items]
Total			$ 97,881	$ 92,687
General and administrative	$ 9,288	$ 7,997	18,960	15,378
Operating Expenses	50,227	41,746	96,416	90,875
Operating Income (Loss)	466	(879)	1,465	1,812
Non-operating Income (Expenses), net	(2,884)	(200)	(265)	866
Income (Loss) Before Income Taxes	(2,418)	(1,079)	1,200	2,678
Net income (loss)	$ 6,002	$ (1,427)	10,157	1,856
Delphax
Variable Interest Entity [Line Items]
Total			0	0
Cost of sales			0	0
General and administrative			125	222
Operating Expenses			125	222
Operating Income (Loss)			(125)	(222)
Non-operating Income (Expenses), net			6,237	(46)
Income (Loss) Before Income Taxes			6,112	(268)
Income Taxes			0	0
Net income (loss)			$ 6,112	$ (268)