Restructuring and Related Activities (Narrative) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Restructuring and Related Activities [Abstract]
Severance Costs				$ 1,500
Impairment of Long-Lived Assets Held-for-use				500
Restructuring and impairment costs	[1]	$ 0	$ 0	$ 2,024	$ 0

[1] Restructuring and impairment costs are excluded from segment operating income, but are included in consolidated operating income in the consolidated statements of income and comprehensive income. See Note 4 for additional information.