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Common Stock - Schedule of Dividends (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended						9 Months Ended
	Aug. 28, 2020	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Class of Stock [Line Items]
Dividends declared (USD per share)		$ 1.530	$ 0.030	$ 0.030	$ 0.025	$ 0.025	$ 0.025	$ 1.590	$ 0.075
Amount		$ 400,311	$ 7,771	$ 7,666	$ 6,380	$ 6,375	$ 6,268	$ 415,748	$ 19,023
Dividends payable	$ 392,489
Stock options exercise price reduction (USD per share)	$ 1.50
Stock options exercise price, lower limit (USD per share)	$ 0.01

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