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Consolidated Statements of Stockholders' Equity (Parenthetical) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Stock issued for acquisition of Filament (in shares)		5,593,116
Dividend per share (usd per share)	$ 0.17	$ 0.17	$ 0.17

X

- Definition

Aggregate dividends declared during the period for each share of common stock outstanding.

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-Publisher FASB
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-Topic 505
-SubTopic 10
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-Paragraph 1
-Subparagraph (SX 210.3-04)
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- Definition

Number of shares of stock issued during the period pursuant to acquisitions.

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