REVENUE RECOGNITION Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Accounts receivable	$ 216,791	$ 246,980
Contract with Customer, Liability, Revenue Recognized	12,400
Contract with Customer, Liability	10,000	13,300
Contract with Customer, Asset, Net	0
Contract with Customer, Performance Obligation Satisfied in Previous Period	$ 2,700
Helicopter Service Contracts [Member]
Revenue Recognition, Period of Service	30 days
Minimum
Revenue, Termination Period, Terms	30 days
Minimum \| Helicopter Service Contracts [Member]
Revenue Recognition, Invoicing Payment Due Period	30 days
Maximum
Revenue, Termination Period, Terms	180 days
Maximum \| Helicopter Service Contracts [Member]
Revenue Recognition, Invoicing Payment Due Period	60 days
Revenue from Contract with Customer [Member]
Accounts receivable	$ 164,700	$ 176,500

Our invoicing terms for payment due from our customers.

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The maximum period over which we will bill and recognize revenue as services are performed. i.e If we perform helicopter services over 60 days, will recognize revenue every incremental 30 days. If the contract is only 7 days, we will recognize revenue when services is performed after the 7 days.

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The period in which customers are allowed to terminate existing contracts.

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Amount due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer), for goods or services (including trade receivables) that have been delivered or sold in the normal course of business, reduced to the estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

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Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

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Amount of revenue recognized from performance obligation satisfied or partially satisfied in previous reporting periods. Includes, but is not limited to, change in transaction price.

+ References

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