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Schedule of Stock-Based Compensation Expense Expected to be Recognized (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award
Unrecognized Stock Based Compensation Expense Expected To Be Recognize In Year One	$ 16,776
Unrecognized Stock Based Compensation Expense Expected To Be Recognized Total	36,516
Stock-based compensation expense	27,695	$ 22,760	$ 22,832
Unrecognized Stock Based Compensation Expense Expected To Be Recognize In Year Two	10,863
Unrecognized Stock Based Compensation Expense Expected To Be Recognize In Year Three	6,054
Unrecognized Stock Based Compensation Expense Expected To Be Recognize In Year Four	2,641
Unrecognized Stock Based Compensation Expense Expected To Be Recognize In Year Five	182
RSUs
Share-based Compensation Arrangement by Share-based Payment Award
Stock-based compensation expense	$ 27,695	$ 22,760	$ 22,826

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- Definition

As of the balance-sheet date, the aggregate unrecognized cost of equity awards made with employees, directors and certain consultants qualifying for treatment as employees under share-based compensation plans that have yet to vest expected to be recognized during year five of the five succeeding fiscal years.

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- Definition

As of the balance-sheet date, the aggregate unrecognized cost of equity awards made with employees, directors and certain consultants qualifying for treatment as employees under share-based compensation plans that have yet to vest expected to be recognized during year four of the five succeeding fiscal years.

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As of the balance-sheet date, the aggregate unrecognized cost of equity awards made with employees, directors and certain consultants qualifying for treatment as employees under share-based compensation plans that have yet to vest expected to be recognized during year one of the five succeeding fiscal years.

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- Definition

As of the balance-sheet date, the aggregate unrecognized cost of equity awards made with employees, directors and certain consultants qualifying for treatment as employees under share-based compensation plans that have yet to vest expected to be recognized during year three of the five succeeding fiscal years.

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- Definition

As of the balance-sheet date, the aggregate unrecognized cost of equity awards made with employees, directors and certain consultants qualifying for treatment as employees under share-based compensation plans that have yet to vest expected to be recognized during year two of the five succeeding fiscal years.

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As of the balance-sheet date, the aggregate unrecognized cost of equity awards made with employees, directors and certain consultants qualifying for treatment as employees under share-based compensation plans that have yet to vest.

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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-SubTopic 10
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