Contingencies (Tables)

9 Months Ended

Dec. 31, 2015

Loss Contingency [Abstract]

Summary of the amounts recorded for environmental remediation

Environmental remediation consisted of the following:

	December 31, 2015						March 31, 2015
	Liability			Receivable			Liability			Receivable
Amounts (payable) receivable	$	(41,824	)	$	18,236		$	(51,749	)	$	26,506
Unamortized discount	1,718			(568		)	1,624			(750		)
Present value amounts (payable) receivable	$	(40,106	)	$	17,668		$	(50,125	)	$	25,756

Schedule of aggregate undiscounted amounts payable for environmental remediation costs, net of expected recoveries

Expected aggregate undiscounted environmental remediation payments, net of expected recoveries, are as follows:

2016	$	2,484
2017	297
2018	283
2019	2,354
2020	1,842
Thereafter	16,328
Total	$	23,588