REVENUE - Contract Assets (Details) - USD ($) $ in Thousands	9 Months Ended
Dec. 31, 2018	Apr. 01, 2018	Mar. 31, 2018
Contract Assets
Beginning balance, April 1, 2018	$ 0
Cumulative effect adjustment at April 1, 2018	412,787
Revenue recognized	5,483,688
Amounts collected or invoiced	(5,598,024)
Ending balance, December 31, 2018	298,451
Contract liabilities	$ 308,000	$ 265,300	$ 329,000

Contract Assets [Roll Forward]

No definition available.

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- Definition

Contract With Customer, Asset, Revenue Recognized

+ References

No definition available.

+ Details

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- Definition

Amount of increase (decrease) in revenue recognized for cumulative catch-up adjustment from change in measure of progress which increases (decreases) right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130551-203045

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- Definition

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.

+ References

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- Definition

Amount of decrease in right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time from transfer to receivable due to right to consideration becoming unconditional.

+ References

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- Definition

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

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