Commitments (Table Text Block)

12 Months Ended

Mar. 31, 2019

Table Text Block [Abstract]

Lease Expenses

		Years Ended March 31,
		2019		2018		2017
		(In thousands)
Lease expense	$	33,158	$	33,960	$	37,343

Lease Commitments for Leases having Terms of More than One Year

		Property, Plant and Equipment				Rental Equipment
		Ground		Operating		Operating		Total
		(In thousands)
Year-ended March 31:
2020	$	1,024	$	18,536	$	1,292	$	20,852
2021		1,024		17,471		–		18,495
2022		1,030		15,720		–		16,750
2023		1,030		15,287		–		16,317
2024		1,031		14,705		–		15,736
Thereafter		48,619		6,064		–		54,683
Total	$	53,758	$	87,783	$	1,292	$	142,833