Derivative Transactions (Tables)

9 Months Ended

Dec. 31, 2020

Fair Value Disclosures [Abstract]

Schedule of Cash Settlements and Net (Gains) and Net Losses on Mark-to-Market Adjustments for Changes in Fair Value of Derivative Contracts

The Company recorded net (gains) and net losses on mark-to-market adjustments for changes in the fair value of derivatives contracts as well as net (gains) and net losses on the settlement of derivative contracts as follows:

	Three Months Ended December 31,						Nine Months Ended December 31,
	2020			2019			2020			2019
	(In thousands)						(In thousands)
Diesel fuel option collars	$	(1,082	)	$	(93	)	$	(2,537	)	$	(17	)
Interest rate swaps		—			—			—			1,726
Foreign exchange forward contracts		—			—			—			(7	)
Total net unrealized mark-to-market (gains) loss	$	(1,082	)	$	(93	)	$	(2,537	)	$	1,702
Diesel fuel option collars		261			—			1,578			157
Foreign exchange forward contracts		—			—			—			102
Interest rate swaps		—			—			—			544
Total net realized loss	$	261		$	—		$	1,578		$	803