v3.24.0.1
Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2023
Summary of Significant Accounting Policies  
Estimated useful lives

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Asset Class

Estimated Useful Life

Buildings and land improvements

20 – 40 years

Software

3 – 6 years

Company vehicles

3 – 8 years

Equipment

6 – 10 years

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Schedule of certain information regarding our restricted share awards and our stock options

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Award Type:

Fair Value Determination

Vesting

Expense
Recognition‡

Expense
Measurement

Restricted Share Awards

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Service Condition

Closing stock price on date of grant

Ratably;
3 or 5 years

Straight-line

Fair value at grant date

Performance Condition

Closing stock price on date of grant

Cliff;
3 years

Straight-line;
Adjusted based on meeting or exceeding performance targets

Evaluated quarterly;
0 - 200% of fair value at grant date depending on performance

Market Condition

Monte-Carlo Simulation

Cliff;
3 years

Straight-line;
Recognized even if condition is not met

Fair value at grant date

Stock Options†

Black-Scholes Options Pricing Model

Ratably;
3 or 5 years

Straight-line

Fair value at grant date

†Stock options expire no later than 10 years after the grant date.

‡Expense is reversed if award is forfeited prior to vesting.