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REVENUES FROM CONTRACTS WITH CUSTOMERS - Variable Consideration (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Apr. 30, 2019	Oct. 31, 2019	Jan. 31, 2019
REVENUES FROM CONTRACTS WITH CUSTOMERS
Amounts of unpriced change orders included in transaction prices		$ 20.6	$ 18.8
Increase in cost of project		31.2
Provision for contract loss		$ 8.6
Reversal of revenues previously recorded due to a change in the percentage of completion for the contract	$ 1.4

X

- Definition

The amount of cost of the project will exceed projected revenues .

+ References

No definition available.

+ Details

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X

- Definition

The amount included in accrued expenses in the balance sheet (a current liability), representing a reserve for the excess of the costs expected to be incurred to complete the contract over the amount of revenues that will be recognized as the remaining work is completed.

+ References

No definition available.

+ Details

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- Definition

The amounts of unpriced change orders included in transaction prices that were used to determine revenues.

+ References

No definition available.

+ Details

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X

- Definition

Amount of increase (decrease) in revenue recognized for cumulative catch-up adjustment from change in measure of progress which (increases) decreases obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ 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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- References

No definition available.

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