Amount of noncurrent assets classified as other.

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 210.5-02.17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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

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Primarily represents commissions incurred in the period based upon the sale by commissioned employees or third parties of the entity's goods or services, and fees for sales assistance or product enhancements performed by third parties (such as a distributor or value added reseller).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.4)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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Percent of annual revenues in year prior to adoption used to estimate the cumulative effect of the change in accounting principle or new accounting pronouncement on retained earnings or other components of equity or net assets in the statement of financial position as of the beginning of the earliest period presented.

+ References

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Summary of Significant Accounting Policies - New Accounting Pronouncements - Revenue Recognition (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Jan. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Initial application period, revenue recognition cumulative effect
Effect on other assets		$ 5,229	$ 4,756
Calculated under Revenue Guidance in Effect before Topic 606 \| ASU 2014-09
Initial application period, revenue recognition cumulative effect
Percent of annual revenue expected to be used to estimate amount of adjustment to retained earnings		6.00%
Sales commission expense		$ 4,250
Calculated under Revenue Guidance in Effect before Topic 606 \| ASU 2014-09 \| Maximum
Initial application period, revenue recognition cumulative effect
Contract costs, amortization period		4 years
Difference between Revenue Guidance in Effect before and after Topic 606 \| ASU 2014-09 \| Sales Commissions \| Forecast Adjustment \| Maximum
Initial application period, revenue recognition cumulative effect
Contract costs, amortization period	7 years