Backlog associated with committed purchase orders from its customers.

No definition available.

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- Definition

Contract expiration year.

+ References

No definition available.

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- Definition

Cumulative effect of new accounting principle in period of adoption tax amount.

+ References

No definition available.

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- Definition

Percentage of revenue recorded from provision of services.

+ References

No definition available.

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- Definition

Percentage of revenue recorded from sale of materials.

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No definition available.

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- Definition

Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

The increase (decrease) during the reporting period, excluding the portion taken into income, in the liability reflecting revenue yet to be earned for which cash or other forms of consideration was received or recorded as a receivable.

+ References

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ 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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REVENUE RECOGNITION - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Dec. 31, 2017
Disaggregation Of Revenue [Line Items]
Deferred revenue			$ 99,940,000	$ 1,863,000
Deferred revenue offset by reduction of retained earnings					$ (17,894,000)
Revenue	$ 77,550,000	$ 61,683,000	$ 177,271,000	$ 219,762,000
Contract expiration year			2022
Backlog associated with committed purchase orders from customers	5,900		$ 5,900
Revenue from Contracts with Customers - ASU No. 2014-09 [Member]
Disaggregation Of Revenue [Line Items]
Deferred revenue			21,300,000
Deferred revenue offset by reduction of retained earnings	17,900,000		17,900,000
Deferred revenue offset by reduction of retained earnings, tax amount			3,100,000
Unbilled receivables	300,000		300,000
Revenue	$ 14,100,000		$ 56,200,000
Percentage of revenue recorded from sales of materials	96.00%	96.00%	95.00%	97.00%
Revenue from Contracts with Customers - ASU No. 2014-09 [Member] \| Adesis, Inc. [Member]
Disaggregation Of Revenue [Line Items]
Percentage of revenue recorded from provision of services	4.00%	4.00%	5.00%	3.00%