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Subsequent Event	6 Months Ended
Subsequent Event	Jun. 30, 2021
Subsequent Events [Abstract]
Subsequent Event	On July 8, 2021, Todd M. Bluedorn, our Chairman of the Board and Chief Executive Officer advised our Board of Directors that he intended to resign as Chief Executive Officer and as Chairman and a member of our Board of Directors in mid-2022. The Board of Directors has commenced a search for our next chief executive officer.