ACCOUNTS RECEIVABLE - Schedule of Total Accounts Receivable (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2017
Accounts Receivable Net [Abstract]
Billed receivables	$ 625,336	$ 546,041
Billable receivables at end of period	129,183	179,350
Unbilled receivables pending receipt of contractual documents authorizing billing	52,352	31,950
Total accounts receivable, current	806,871	757,341
Unbilled receivables, retainages and fee withholdings expected to be billed beyond the next 12 months	8,620	7,886
Total accounts receivable	$ 815,491	$ 765,227

Receivables that are billable within 45 days of period end.

No definition available.

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- Definition

For an unclassified balance sheet, the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

+ References

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- References

No definition available.

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- Definition

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
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- Definition

Amount due from customers or clients, more than one year from the balance sheet date, for goods or services 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

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-Publisher FASB
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- Definition

Amounts due for billed services rendered or to be rendered, actions taken or to be taken, or a promise to refrain from taking certain actions in accordance with the terms of a legally binding agreement between the Company and, at a minimum, one other party. An example would be amounts billed to customers under contracts or programs but not paid as of the balance sheet date.

+ References

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- Definition

Amount received for services rendered and products shipped, but not yet billed, for non-contractual agreements due within one year or the normal operating cycle, if longer.

+ References

No definition available.

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