Certain of those expenses, such as travel and entertainment, will be gradually reintroduced back into the business and weighted more to the second half of the year as COVID-19 restrictions are relaxed.

Feb 10, 2021 / CFO / receipt, needs a key / Ed Pierce, CFO | earnings call 2021-02-10 | transcript 9b21173e-9eaa-43cf-b848-ec85110c758c | chars 18628-18829 | segment 19

This improvement resulted from, among other things, lower incentive compensation, mainly those incentives tied to growth in revenues or adjusted EBITDA, and lower travel and entertainment, healthcare, and stock-based compensation expenses.

Jul 29, 2020 / CFO / receipt, needs a key / Ed Pierce, CFO | earnings call 2020-07-29 | transcript a1841346-8966-42dc-ba5f-e70bbd0945e1 | chars 17564-17803 | segment 17