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Consolidated Statements of Changes in Equity (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2019
Statement of Stockholders' Equity [Abstract]
Dividends per common share	$ 0.70	$ 0.70	$ 0.70
Net unrealized gain (loss) on derivative instruments, tax (benefit) expense	$ 424	$ 468	$ 120
Tax expense related to unrealized gain (loss) on derivative instruments	$ 1,952	$ (1,793)	$ 1,006

X

- Definition

Aggregate dividends paid during the period for each share of common stock outstanding.

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- Definition

Amount, after reclassification adjustment, of tax (expense) benefit for (increase) decrease in accumulated other comprehensive income for defined benefit plan, attributable to parent.

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Amount of tax expense (benefit), before reclassification adjustments, related to increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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