Selling, general and administrative expense (Tables)

12 Months Ended

Dec. 31, 2022

Selling, general and administrative expense.

Schedule of selling, general and administrative expense

	Year ended December 31,
	2022		2021
Selling, general and administrative expenses:
Salaries and benefits	$	223,664	$	202,871
Sales and marketing		44,609		41,841
Rent and occupancy		51,511		44,489
Travel		11,201		7,942
Professional fees		33,715		39,669
Office supplies and services		29,596		29,087
Other		53,242		20,738
Total selling, general and administrative expense	$	447,538	$	386,637