Note 15. Share-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2022

Share-Based Payment Arrangement [Abstract]

Schedule of Share-Based Compensation Expense Recognized in the Consolidated Statements of Operations

The following table presents share-based compensation expense recognized in our consolidated statements of operations for the years ended December 31, 2022, 2021, and 2020 (in thousands):

	2022		2021		2020
Cost of sales (1)	$	3,174	$	892	$	3,183
Selling, general and administrative (1)	22,367		19,578		22,093
Research and development (2)	3,080		432		3,991
Production start-up	35		—		—
Total share-based compensation expense	$	28,656	$	20,902	$	29,267

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(1)On March 31, 2021, we completed the sales of our North American O&M operations and U.S. project development business, which resulted in the forfeiture of unvested shares for associates departing the Company as part of the transactions. See Note 3. “Sales of Businesses” to our consolidated financial statements for further information related to these transactions.

(2)Effective March 15, 2021, our former Chief Technology Officer retired from the Company, which resulted in the forfeiture of his unvested shares during the year ended December 31, 2021.

Schedule of Restricted Stock and Performance Unit Activity

The following is a summary of our restricted stock unit activity, including performance unit activity, for the year ended December 31, 2022:

	Number of Shares	Weighted-Average Grant-Date Fair Value
Unvested restricted stock units at December 31, 2021	1,316,860	$	60.09
Restricted stock units granted (1)	462,234	89.21
Restricted stock units vested	(425,019)	62.20
Restricted stock units forfeited	(43,188)	64.86
Unvested restricted stock units at December 31, 2022	1,310,887	$	69.51

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(1)Restricted stock units granted include the maximum amount of performance units available for issuance under our long-term incentive program for key executive officers and associates. The actual number of shares to be issued will depend on the relative attainment of the performance metrics described above.