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Share Based Award Share awards (Notes) | 12 Months Ended
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Dec. 31, 2024
Share-Based Payment Arrangement [Abstract] |
Share-based Payment Arrangement [Text Block] | SHARE-BASED AWARDS We have a stock incentive plan for employees and directors and an employee stock purchase plan; however, the employee stock purchase plan was suspended in 2017. Shares to be issued under these plans will be issued either from authorized but unissued shares or from treasury shares. We incur stock compensation expense for stock options, restricted stock units ("RSU") and performance restricted stock units ("PRSU"). We receive a tax benefit on stock compensation expense and direct tax benefits from the exercise of stock options and vesting of restricted stock units. We also have had indirect tax benefits upon exercise of stock options and vesting of restricted stock units related to research and development tax credits which are recorded as a reduction of income tax expense. The table below summarizes compensation costs and related tax benefits (in thousands):
|  | Year ended December 31,
|  | 2024 |  | 2023 |  | 2022
Stock compensation expense |  | $ | 46,883 |  |  | $ | 40,563 |  |  | $ | 36,025 |
Tax benefit from stock-based compensation cost |  | $ | 5,524 |  |  | $ | 5,379 |  |  | $ | 4,636 |
Indirect tax benefit |  | $ | — |  |  | $ | — |  |  | $ | 749 |
As of December 31, 2024, we had $55.3 million of unamortized stock compensation cost which we will recognize as an expense over a weighted-average period of approximately 0.7 years. Stock Option Plans Our 2011 Stock Incentive Plan ("2011 Plan") replaced our 2003 Stock Option Plan ("2003 Plan"). Our 2011 Plan initially had 650,000 shares available for issuance, plus the remaining available shares for grant from the 2003 Plan and any shares that were forfeited, terminated or expired that would have otherwise returned to the 2003 Plan. In years 2012, 2014, 2017 and 2023, our stockholders approved amendments to the 2011 plan that increased the shares available for issuance by a total of 5,461,000, bringing the initial shares available for issuance to 6,111,000, plus the remaining 248,700 shares that remained available for grant from the 2003 Plan. As of December 31, 2024, the 2011 Plan has 6,374,300 shares of common stock reserved for issuance to employees, which includes 263,300 shares that transferred from the 2003 Plan. Shares issued as options or stock appreciation rights ("SARs") are charged against the 2011 Plan's share reserve as one share for one share issued. Shares subject to awards other than options and SARs are charged against the 2011 Plan's share reserve as 2.09 shares for 1 share issued. Options may be granted with exercise prices at no less than fair market value at date of grant. Options granted under the 2011 Plan may be "non-statutory stock options" which expire no more than ten years from date of grant or "incentive stock options" as defined in Section 422 of the Internal Revenue Code of 1986, as amended. Time-based Stock Options To date, all options granted under 2011 Plan and 2003 Plan have been non-statutory stock options. The majority of the time-based outstanding employee option grants vested 25% after one year from the grant date and the balance vested ratably on a monthly basis over 36 months. The outstanding employee option grants are all fully vested. The majority of the outstanding options granted to non-employee directors vest one year from the grant date. The options generally expire 10 years from the grant date. The fair value of time-based option grants is calculated using the Black-Scholes option valuation model. The expected term for the option grants was based on historical experience and expected future employee behavior. We estimate the volatility of our common stock at the date of grant based on the historical volatility of our common stock, based on the average expected exercise term. The table below summarizes the total time-based stock options granted, total valuation and the weighted-average assumptions (dollars and shares in thousands, except per option amounts):
|  |  |  |  | Year ended December 31,
|  |  |  |  |  | 2022
Number of time-based options granted |  |  |  |  |  | 7,620 |
Grant-date fair value of options granted |  |  |  |  |  | $ | 540 |
Weighted-average assumptions for stock option valuation: |  |  |  |  |  |
Expected term (years) |  |  |  |  |  | 5.5
Expected stock price volatility |  |  |  |  |  | 36.0 | %
Risk-free interest rate |  |  |  |  |  | 3.0 | %
Expected dividend yield |  |  |  |  |  | — | %
Weighted-average grant-price per option |  |  |  |  |  | $ | 185.79 |
Weighted-average grant-date fair value per option |  |  |  |  |  | $ | 70.86 |
There were no stock options granted during the years ended December 31, 2024 and 2023. A summary of our stock option activity as of and for the year ended December 31, 2024 is as follows:
|  | Shares |  | Weighted-Average Exercise Price Per Share |  | Weighted-Average Contractual Life (Years) |  | Aggregate Intrinsic Value (in thousands)
Outstanding at December 31, 2023 |  | 459,828 |  |  | $ | 82.95 |  |  |  |  |
Granted |  | — |  |  | $ | — |  |  |  |  |
Exercised |  | (351,688) |  |  | $ | 66.61 |  |  |  |  |
Forfeited or expired |  | — |  |  | $ | — |  |  |  |  |
Outstanding at December 31, 2024 |  | 108,140 |  |  | $ | 136.12 |  |  | 2.21 |  | $ | 3,963 |
Exercisable at December 31, 2024 |  | 108,140 |  |  | $ | 136.12 |  |  | 2.21 |  | $ | 3,963 |
Vested and expected to vest, December 31, 2024 |  | 108,140 |  |  | $ | 136.12 |  |  | 2.21 |  | $ | 3,963 |
The intrinsic values for options exercisable, outstanding and vested or expected to vest at December 31, 2024 are based on our closing stock price of $155.17 at December 31, 2024 and are before applicable taxes. The following table presents information regarding stock option activity (in thousands):
|  | Year ended December 31,
|  | 2024 |  | 2023 |  | 2022
Intrinsic value of options exercised |  | $ | 18,651 |  |  | $ | 8,441 |  |  | $ | 17,340 |
Cash received from exercise of stock options |  | $ | 10,939 |  |  | $ | 4,022 |  |  | $ | 8,785 |
Tax benefit from stock option exercises |  | $ | 1,034 |  |  | $ | 1,733 |  |  | $ | 3,637 |
Stock Awards In 2024, we granted PRSUs to our executive officers and certain other non-executive employees. The PRSUs will cliff-vest on March 8, 2026, subject to continued service through such vesting date and the achievement of minimum two-year cumulative adjusted EBITDA, commencing on January 1, 2024 and ending on December 31, 2025, which when reviewed against a predetermined vesting matrix could result in the vesting of 0% to 250% of the awarded PRSUs. We also granted certain other one-off PRSU awards to non-executive employees with various performance requirements, whereby the PRSUs will be earned if the minimum requirements are met. In 2023, we granted PRSUs to our executive officers. For the executive officers other than the CEO, COO, CFO and the CVP, GC, the PRSUs will vest as to one-third of the total number of PRSUs underlying the award on the first, second and third anniversaries of the applicable grant date, subject to a determination by the CEO and Compensation Committee that the officers have met their individual performance goals for the applicable year and continued service through such vesting date. For the CEO, COO, the CFO, and the CVP, GC, the PRSUs will cliff-vest on March 15, 2026, subject to continued service through such vesting date and the achievement of minimum three-year adjusted revenue and adjusted EBITDA compound annual growth rates, commencing on January 1, 2023 and ending on December 31, 2025, which when reviewed against a predetermined vesting matrix could result in the vesting of 0% to 250% of the awarded PRSUs. In February 2024, the Compensation Committee made the determination that the executive officers other than the CEO, CFO, COO and CVP, GC met their individual performance goals for 2023 with respect to the PRSUs subject to annual vesting, as outlined above, and therefore one-third of their 2023 PRSUs vested during 2024. In 2022, we granted our annual PRSUs to our executive officers and certain other non-executive employees. These PRSUs cliff-vested on March 7, 2024, subject to continued service through such vesting date and the achievement of net synergy savings targets related to the Smiths Medical acquisition achieved during the performance period commencing on January 1, 2022 and ending on December 31, 2023, which when reviewed against predetermined targets could have resulted in the vesting of 0% to 200% of the awarded PRSUs. We also granted certain other one-off PRSU awards to non-executive employees with various performance requirements, whereby the PRSUs will be earned if the minimum requirements are met within a specified time period. The performance period related to the annual 2022 PRSUs ended on December 31, 2023 and in February 2024 the Compensation Committee determined that 200% of the PRSUs awarded were earned based on the actual net synergy savings related to the Smiths Medical acquisition achieved during the performance period. In 2021, we granted PRSUs to our executive officers. For the executive officers other than the CEO, COO and the CFO, the PRSUs vested as to one-third of the total number of PRSUs underlying the award on the first, second and third anniversaries of the applicable grant date, subject to a determination by the CEO and Compensation Committee that the officers had met their individual performance goals for the applicable years and continued service through such vesting date. In February 2022, 2023 and 2024, the Compensation Committee made the determination that the executive officers other than the CEO, CFO and COO met their individual performance goals for 2021, 2022 and 2023, respectively, and therefore one-third of their 2021 PRSUs vested during each of 2022, 2023 and 2024. For the CEO, COO and the CFO, the PRSUs cliff-vested on March 8, 2024, subject to continued service through such vesting date and the achievement of minimum three-year cumulative adjusted revenue dollar target growth rate and adjusted EPS dollar target growth rate targets, commencing on January 1, 2021 and ending on December 31, 2023, which when reviewed against a predetermined vesting matrix could have resulted in the vesting of 0% to 250% of the awarded PRSUs. The performance period related to the 2021 CEO, COO and CFO PRSUs ended on December 31, 2023 and in February 2024 the Compensation Committee determined that 110% of the awarded PRSUs were earned based on the actual cumulative adjusted revenue dollar target growth rate and adjusted EPS dollar target growth rate achieved during the performance period. In 2020, we granted PRSUs to our executive officers. For the executive officers other than the CEO, COO and the CFO, the PRSUs vested as to one-third of the total number of PRSUs underlying the award on the first, second and third anniversaries of the applicable grant date, subject to a determination by the CEO and Compensation Committee that the officers had met their individual performance goals for the applicable years and continued service through such vesting date. In February 2021, 2022, and 2023, the Compensation Committee made the determination that the executive officers other than the CEO, CFO and COO met their individual performance goals for 2021, 2022 and 2023, respectively, and therefore one-third of their 2020 PRSUs awarded vested during 2021, 2022 and 2023. For the CEO, COO and the CFO, the PRSUs cliff-vested on March 6, 2023, subject to continued service through such vesting date and the achievement of minimum three-year cumulative adjusted revenue dollar target growth rate and adjusted EPS dollar target growth rate targets, which when reviewed against a predetermined vesting matrix such PRSUs originally had the potential to vest from 0% to 250% of the awarded PRSUs. During February 2021, the Compensation Committee, modified the potential vesting percentages related to the 2020 PRSU awards for the CEO, COO and CFO, as the original potential percentages were established immediately before the onset of the COVID-19 pandemic. The Compensation Committee determined to adjust the CEO, COO and CFO's potential to earn from between 0% and 250% of the awarded PRSUs, to an increased potential to earn between 50% and 300% of the award granted, subject to the same minimum threshold revenue and EPS targets set forth above to be achieved by the Company. The additional compensation expense as a result of modifying the 2020 PRSUs granted to our CEO, COO and CFO totaled $2.1 million recognized over the remaining amortization period from the date of modification. The performance period related to the 2020 CEO, COO and CFO PRSUs ended on December 31, 2022 and in February 2023 the Compensation Committee determined that 188% of the awarded PRSUs were earned based on the actual cumulative adjusted revenue dollar growth rate and adjusted EPS dollar target growth rate achieved during the performance period. In 2019, we granted PRSUs to our executive officers. For the executive officers other than the CEO and the COO, the PRSUs vested as to one-third of the total number of PRSUs underlying the award on the first, second and third anniversaries of the applicable grant date, subject to a determination by the CEO and Compensation Committee that the officers had met their individual performance goals for the applicable years and continued service through such vesting date. In February 2020, 2021 and 2022, the Compensation Committee made the determination that the executive officers other than the CEO and COO met their individual performance goals for 2019, 2020 and 2021, respectively, and therefore one-third of their 2019 PRSUs awarded vested during 2020, 2021 and 2022. For the CEO and the COO, the PRSUs were to cliff-vest on March 6, 2022, subject to continued service through such vesting date and the achievement of a minimum Cumulative Adjusted EBITDA growth target over the performance period. If, for the three-year period ending on December 31, 2021, the Cumulative Adjusted EBITDA had a growth of at least 6% to 8%, 50% of the awarded PRSUs would have vested. If, on the vesting date, the Cumulative Adjusted EBITDA had a growth of between 8% to 10%, 100% of the awarded PRSUs would have vested. If, on the vesting date, the Cumulative Adjusted EBITDA had a growth of over 10%, 200% of the awarded PRSUs would have vested. The performance period related to the 2019 CEO and COO PRSUs ended on December 31, 2021 and in February 2022 the Compensation Committee determined that zero PRSUs were earned based on the actual Cumulative Adjusted EBITDA growth achieved during the performance period. In 2019, we also granted PRSUs to one of our non-executive employees. These PRSUs vested at the end of a three-year period ending on March 31, 2022, based on meeting certain minimum performance goals. Restricted stock units are granted annually to our non-employee directors and vest on the first anniversary of the grant date, or the date of our annual meeting, whichever occurs first. In 2024, 2023 and 2022, we granted RSUs to certain employees that typically vest ratably on the anniversary of the grant over three years. We recognize forfeitures as they occur. The grant-date fair market value of our PRSUs and RSUs is determined by our stock price on the grant date. The table below summarizes our restricted stock award activity (dollars in thousands):
|  | Year ended December 31,
|  | 2024 |  | 2023 |  | 2022
PRSU |  |  |  |  |  |
Shares granted |  | 150,218 |  |  | 78,213 |  |  | 60,383 |
Shares earned (1) |  | 142,735 |  |  | 49,314 |  |  | 46,317 |
Grant-date fair value per share |  | $ | 104.52 |  |  | $ | 190.02 |  |  | $ | 230.31 |
Grant-date fair value |  | $ | 15,701 |  |  | $ | 14,862 |  |  | $ | 13,907 |
Intrinsic value vested |  | $ | 15,145 |  |  | $ | 8,024 |  |  | $ | 10,487 |
RSU |  |  |  |  |  |
Shares granted |  | 223,899 |  |  | 156,111 |  |  | 116,870 |
Grant-date fair value per share |  | $ | 105.94 |  |  | $ | 173.10 |  |  | $ | 221.65 |
Grant-date fair value |  | $ | 23,721 |  |  | $ | 27,024 |  |  | $ | 25,905 |
Intrinsic value vested |  | $ | 11,963 |  |  | $ | 14,179 |  |  | $ | 16,438 |
_______________________________ (1) PRSU shares earned in 2024 were related to performance awards granted to executives and certain other employees in 2021, 2022 and 2023. PRSU shares earned in 2023 were related to performance awards granted to executives in 2020 and 2021 and performance awards granted to a non-executive employees in 2022. PRSU shares earned in 2022 were related to performance awards granted to executives in 2019, 2020 and 2021 and performance award granted to a non-executive employee in 2019, 2020, and 2021. The table below provides a summary of our PRSU and RSU activity as of and for the year ended December 31, 2024:
|  | Number of Units |  | Grant-Date Fair Value Per Share |  | Weighted-Average Contractual Life (Years) |  | Aggregate Intrinsic Value (in thousands)
Non-vested at December 31, 2023 |  | 448,601 |  |  | $ | 199.68 |  |  |  |  |
Change in units due to performance expectations (1) |  | 2,081 |  |  | $ | 198.05 |  |  |  |  |
Granted |  | 374,117 |  |  | $ | 105.37 |  |  |  |  |
Vested |  | (258,756) |  |  | $ | 207.72 |  |  |  |  |
Forfeited |  | (15,032) |  |  | $ | 140.87 |  |  |  |  |
Non-vested and expected to vest at December 31, 2024 |  | 551,011 |  |  | $ | 133.47 |  |  | 1.0 |  | $ | 85,500 |
_______________________________ (1) Relates to adjustments to 2021 PRSUs granted to executives that vested during 2024. ESPP We have an ESPP under which U.S. employees may purchase up to $25,000 annually of common stock at 85% of its fair market value at the beginning or the end of a six-month offering period, whichever is lower. There were 750,000 shares of common stock reserved for issuance under the ESPP, which is subject to an annual increase of the least of 300,000 shares, two percent of the shares outstanding or such a number as determined by the Board. To date, there have been no increases. The ESPP is intended to constitute an “employee stock purchase plan” within the meaning of Section 423 of the Internal Revenue Code. We suspended our ESPP in 2017. All shares unissued under the plan expired during 2022.

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