REVENUE RECOGNITION (Tables)

12 Months Ended

Mar. 31, 2019

Revenue from Contract with Customer [Abstract]

Schedule of Prospective Adoption of New Accounting Pronouncements [Table Text Block]

In accordance with the new revenue standard requirements discussed in Note 1, the disclosure of the impact of adoption on our consolidated financial statements for fiscal year 2019 follow (in thousands):

	Fiscal Year ended March 31, 2019
	Balances After Adoption		Balances without Adoption		Effect of change
Revenue:
Operating revenue from non-affiliates	$	1,239,117	$	1,259,529	$	(20,412	)
Operating revenue from affiliates	23,099		48,378		(25,279		)
Reimbursable revenue from non-affiliates	61,755		61,755		—
Revenue from Contracts with Customers	1,323,971		1,369,662		(45,691		)
Other revenue from non-affiliates	20,412		—		20,412
Other revenue from affiliates	25,279		—		25,279
Total Revenue	$	1,369,662	$	1,369,662	$	—

Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]

The table below discloses (1) the aggregate amount of the transaction price allocated to performance obligations that are unsatisfied (or partially unsatisfied) as of the end of the reporting period and (2) the expected timing to recognize this revenue (in thousands).

	Remaining Performance Obligations
	Fiscal Year Ending March 31,										Total
	2020		2021		2022		2023		2024 and thereafter
Outstanding Service Revenue:
Helicopter contracts	$	381,163	$	223,667	$	200,013	$	199,600	$	296,331	$	1,300,774
Fixed-wing contracts	1,521		—		—		—		—		1,521
Total remaining performance obligation revenue	$	382,684	$	223,667	$	200,013	$	199,600	$	296,331	$	1,302,295