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Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2020

Share-based Payment Arrangement [Abstract]

Stock-Based Compensation Expense for Employees and Non-Employees

Total share-based compensation expense recorded for employees and non-employees is as follows (in thousands):

			Three Months Ended June 30,																		Six Months Ended June 30,
			2020						2019						2020						2019
Cost of revenues			$	213					$	74					$	382					$	199
Research and development			7,620						5,218						14,611						10,135
Sales and marketing			2,436						1,754						4,622						3,562
General and administrative			9,277						8,406						18,265						16,594
Total share-based compensation expense			$	19,546					$	15,452					$	37,880					$	30,490

Summary of Restricted Stock Unit Activity

Activity for RSUs and PSUs is as follows:

			RSUs and PSUs Outstanding
			Shares Outstanding						Weighted Average Grant Date Fair Value
Balance at December 31, 2019			6,909,530						$	24.04
Granted			2,298,799						41.67
Released			(3,197,978)						17.99
Canceled			(351,049)						30.00
Balance at June 30, 2020			5,659,302						$	34.24

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Tabular disclosure of allocation of amount expensed and capitalized for award under share-based payment arrangement to statement of income or comprehensive income and statement of financial position. Includes, but is not limited to, corresponding line item in financial statement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
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- Definition

Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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