Stock-Based Compensation	3 Months Ended
Mar. 31, 2023
Share-Based Payment Arrangement [Abstract]
Stock-Based Compensation	16. Stock-Based Compensation Equity compensation awards may be granted to certain eligible employees or non-employee directors. A detailed description of the awards granted prior to 2023 is included in the Company’s 2022 Annual Report on Form 10-K. The total number of shares of the Company’s common stock available for awards under the Company’s 2013 Omnibus Incentive Plan is 7,477,395 shares. The total number of shares of the Company’s common stock still available for issuance as of March 31, 2023 is 3,304,056 shares. Stock-based compensation expense was $3.1 million for the three months ended March 31, 2023 and 2022. The Company reports stock-based compensation expense within engineering, selling, and administrative expense in the Condensed Consolidated Statements of Operations. The Company recognizes stock-based compensation expense over the award’s vesting period, subject to the retirement, death or disability provisions of the 2013 Omnibus Incentive Plan. The Company granted 478,411 and 378,623 restricted stock units inclusive of 77,576 and 56,640 director awards during the three months ended March 31, 2023 and 2022, respectively. The restricted stock units granted to employees vest in three annual increments over a three-year period beginning on the grant date and director awards vest immediately on the grant date. A total of 233,409 and 198,334 performance shares units were issued by the Company to employees during the three months ended March 31, 2023 and 2022, respectively. Performance share units vest after three years and are earned based on the extent to which performance goals are met over the applicable performance period. The performance goals and the applicable performance period vary for each grant year. The performance goals for the performance share units granted in 2023 are weighted 60% on the 3-year average of the Company’s adjusted EBITDA percentage from 2023 to 2025 and 40% on cumulative non-new machine sales from January 1, 2023 through December 31, 2025. The Company defines non-new machine sales as parts sales, used crane sales, rental revenue, service revenue and other revenue. The 2023 performance share units include a +/-20% modifier weighted on total shareholder return relative to a defined peer group of companies during the three-year performance period, not to exceed 200% of target shares granted. The performance goals for the performance share units granted in 2022 are weighted 60% on the 3-year average of the Company’s adjusted EBITDA percentage from 2022 to 2024 and 40% on non-new machine sales for the year ending December 31, 2024. The 2022 performance share units include a +/-20% modifier weighted on total shareholder return relative to a defined peer group of companies during the three-year performance period, not to exceed 200% of target shares granted.

Stock-Based Compensation

3 Months Ended

Mar. 31, 2023

Share-Based Payment Arrangement [Abstract]

16. Stock-Based Compensation

Equity compensation awards may be granted to certain eligible employees or non-employee directors. A detailed description of the awards granted prior to 2023 is included in the Company’s 2022 Annual Report on Form 10-K. The total number of shares of the Company’s common stock available for awards under the Company’s 2013 Omnibus Incentive Plan is 7,477,395 shares. The total number of shares of the Company’s common stock still available for issuance as of March 31, 2023 is 3,304,056 shares.

Stock-based compensation expense was $3.1 million for the three months ended March 31, 2023 and 2022. The Company reports stock-based compensation expense within engineering, selling, and administrative expense in the Condensed Consolidated Statements of Operations. The Company recognizes stock-based compensation expense over the award’s vesting period, subject to the retirement, death or disability provisions of the 2013 Omnibus Incentive Plan.

The Company granted 478,411 and 378,623 restricted stock units inclusive of 77,576 and 56,640 director awards during the three months ended March 31, 2023 and 2022, respectively. The restricted stock units granted to employees vest in three annual increments over a three-year period beginning on the grant date and director awards vest immediately on the grant date.

A total of 233,409 and 198,334 performance shares units were issued by the Company to employees during the three months ended March 31, 2023 and 2022, respectively. Performance share units vest after three years and are earned based on the extent to which performance goals are met over the applicable performance period. The performance goals and the applicable performance period vary for each grant year.

The performance goals for the performance share units granted in 2023 are weighted 60% on the 3-year average of the Company’s adjusted EBITDA percentage from 2023 to 2025 and 40% on cumulative non-new machine sales from January 1, 2023 through December 31, 2025. The Company defines non-new machine sales as parts sales, used crane sales, rental revenue, service revenue and other revenue. The 2023 performance share units include a +/-20% modifier weighted on total shareholder return relative to a defined peer group of companies during the three-year performance period, not to exceed 200% of target shares granted.

The performance goals for the performance share units granted in 2022 are weighted 60% on the 3-year average of the Company’s adjusted EBITDA percentage from 2022 to 2024 and 40% on non-new machine sales for the year ending December

31, 2024. The 2022 performance share units include a +/-20% modifier weighted on total shareholder return relative to a defined peer group of companies during the three-year performance period, not to exceed 200% of target shares granted.