Contingent Liabilities and Commitments (Table Text Block)

6 Months Ended

Sep. 30, 2018

Operating leases, rental equipment [Abstract]

Lease Commitments for Leases having Terms of More than One Year

		Property, Plant and Equipment				Rental Equipment
		Ground		Operating		Operating		Total
		(Unaudited)
		(In thousands)
Year-ended September 30:
2019	$	1,024	$	17,677	$	5,394	$	24,095
2020		1,024		17,880		–		18,904
2021		1,027		16,267		–		17,294
2022		1,030		15,527		–		16,557
2023		1,030		15,003		–		16,033
Thereafter		49,134		12,991		–		62,125
Total	$	54,269	$	95,345	$	5,394	$	155,008