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Leases, Maturities of Lease Commitments (Details) - USD ($)	Sep. 30, 2021	Mar. 31, 2021
Operating Leases [Abstract]
2022 - remaining six months	$ 5,184,000
2023	11,400,000
2024	9,964,000
2025	10,044,000
2026	10,320,000
Thereafter	75,101,000
Total lease payments	122,013,000
Less amount representing interest	(31,982,000)
Present value of lease liabilities	90,031,000
Finance Leases [Abstract]
2022 - remaining six months	1,418,000
2023	2,414,000
2024	1,612,000
2025	1,118,000
2026	432,000
Thereafter	0
Total lease payments	6,994,000
Less amount representing interest	(535,000)
Present value of lease liabilities	6,459,000
Total [Abstract]
2022 - remaining six months	6,602,000
2023	13,814,000
2024	11,576,000
2025	11,162,000
2026	10,752,000
Thereafter	75,101,000
Total lease payments	129,007,000
Less amount representing interest	(32,517,000)
Present value of lease liabilities	$ 96,490,000	$ 84,625,000

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