Segment and Geographic Information (Tables)

12 Months Ended

Dec. 31, 2021

Segments Geographical Areas [Abstract]

Gross Billings, Based on Billing Address of Clients or Client Affiliates

Gross Billings, based on the billing address of the clients or client affiliates, were as follows (in thousands):

	Year Ended December 31,
	2021		2020		2019
US	$	5,286,191	$	3,605,665	$	2,639,497
International		843,436		562,595		456,190
Total	$	6,129,627	$	4,168,260	$	3,095,687

Property and Equipment, Net and Operating Lease Assets, Presented by Principal Geographic Area

Property and equipment, net and operating lease assets presented by principal geographic area, were as follows (in thousands):

	December 31, 2021		December 31, 2020
US	$	282,650	$	263,891
International		87,297		100,115
Total	$	369,947	$	364,006