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Contract Balances (Tables)

3 Months Ended

Mar. 31, 2018

Contract With Customer Asset And Liability [Abstract]

Schedule of Accounts Receivable

Accounts receivable (in thousands) consisted of the following, as of:

		March 31,				December 31,
		2018				2017
						(as adjusted)
Billed and billable		$	151,289			$	169,554
Less: allowance for doubtful accounts			(3,957	)			(4,190	)
Accounts receivable, net		$	147,332			$	165,364

Deferred Revenue and Advance Payments

Deferred revenue and advance payments (in thousands) from customers consisted of the following, as of:

		March 31,				December 31,
		2018				2017
						(as adjusted)
Current:
Deferred product licenses revenue		$	3,064			$	3,760
Deferred subscription services revenue			16,742				17,324
Deferred product support revenue			173,156				168,185
Deferred other services revenue			8,756				9,465
Total current deferred revenue and advance payments		$	201,718			$	198,734
Non-current:
Deferred product licenses revenue		$	843			$	820
Deferred subscription services revenue			385				126
Deferred product support revenue			3,854				4,826
Deferred other services revenue			586				628
Total non-current deferred revenue and advance payments		$	5,668			$	6,400

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- References

No definition available.

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- Definition

Tabular disclosure of the type of arrangements and the corresponding amounts that comprise the current and noncurrent balance of deferred revenue as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 13.A.4(a).Q1)
-URI http://asc.fasb.org/extlink&oid=65893310&loc=d3e214044-122780

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 8
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82887183&loc=d3e6935-107765

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- Definition

Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3,4)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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