Leases, Cost Recogized in Consolidated Statements of Income (Details) - USD ($)	3 Months Ended	6 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Lease cost [Abstract]
Operating lease cost	$ 3,149,000	$ 2,877,000	$ 6,191,000	$ 5,560,000
Short-term lease cost	375,000	337,000	751,000	654,000
Variable lease cost	210,000	230,000	491,000	373,000
Finance lease cost [Abstract]
Amortization of finance lease assets	565,000	428,000	1,064,000	841,000
Interest on finance lease liabilities	89,000	93,000	186,000	176,000
Total lease cost	$ 4,388,000	$ 3,965,000	$ 8,683,000	$ 7,604,000

No definition available.

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- Definition

Amount of interest expense on finance lease liability.

+ References

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- Definition

Amount of amortization expense attributable to right-of-use asset from finance lease.

+ References

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- Definition

Amount of lease cost recognized by lessee for lease contract.

+ References

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- References

No definition available.

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- Definition

Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability.

+ References

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- Definition

Amount of short-term lease cost, excluding expense for lease with term of one month or less.

+ References

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- Definition

Amount of variable lease cost, excluded from lease liability, recognized when obligation for payment is incurred for finance and operating leases.

+ References

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