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Number of warrants exercised during the period.

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The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Gross number of share options (or share units) granted during the period.

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Earnings Per Share - Dilutive Potential Common Shares (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Aug. 31, 2022	Aug. 24, 2022	Dec. 31, 2020	May 31, 2020	May 29, 2020	May 18, 2020	Mar. 31, 2018	Jul. 31, 2017	Jul. 20, 2017	Apr. 30, 2017	Apr. 04, 2017
Earnings Per Share
Number of dilutive potential common stock	163,726,275	161,820,136	147,846,729
3.75% Convertible Senior Notes
Earnings Per Share
Principal amount	$ 197,278	$ 197,278					$ 212,463	$ 12,500	$ 200,000
Conversion of notes through common stock issuance (in shares)	0	0	3,000,000.0
Interest rate (as a percent)			3.75%			3.75%	3.75%	3.75%	3.75%	3.75%
2022 Amazon transaction agreement
Earnings Per Share
Shares of common stock that can be purchased from warrants issued (in shares)				16,000,000	16,000,000
Warrants Exercised During the Period	0
Warrants issued with the Amazon, Inc transaction agreement
Earnings Per Share
Shares of common stock that can be purchased from warrants issued (in shares)													55,286,696	55,286,696
Number of warrants exercised (in shares)	34,917,912	24,704,450
Warrants issued with the Walmart Stores, Inc transaction agreement
Earnings Per Share
Shares of common stock that can be purchased from warrants issued (in shares)											55,286,696	55,286,696
Number of warrants exercised (in shares)	13,094,217	13,094,217
Employee Stock Option [Member]
Earnings Per Share
Number of dilutive potential common stock	39,261,362	27,598,269	23,806,909
Options granted	13,254,689	4,761,724	16,502,335
Restricted stock and restricted stock units outstanding
Earnings Per Share
Number of dilutive potential common stock	6,732,884	6,276,376	4,851,873
Options granted	4,131,193	4,289,682	1,894,356
Common stock warrants
Earnings Per Share
Number of dilutive potential common stock	78,561,263	88,774,725	80,017,181
Convertible senior notes
Earnings Per Share
Number of dilutive potential common stock	39,170,766	39,170,766	39,170,766