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Stock-Based Compensation
 6 Months Ended
Jun. 30, 2022
Share-based Payment Arrangement [Abstract]  
Stock-Based Compensation
Stock-Based Compensation:

We issue various long-term incentive awards, including performance share units, restricted stock units and stock appreciation rights under the Lennox International Inc. 2019 Incentive Plan, as amended and restated. Stock-based compensation expense related to continuing operations is included in Selling, general and administrative expenses in the accompanying Consolidated Statements of Operations as follows (in millions):
For the Three Months Ended June 30,For the Six Months Ended June 30,
2022202120222021
Stock-based compensation expense (1)
$5.9 $8.9 $10.6 $17.5 
(1) All expense was recorded in our Corporate and Other business segment.