Operations by Geographic Location

The Company conducts operations in North America, Europe, Middle East and Africa, Asia-Pacific, and Latin America through wholly-owned subsidiaries and representative sales offices. The Company attributes net service revenue to geographical locations based upon the location of the customer (i.e., the location to which the Company invoices the end customer). Total revenue by geographic area was as follows (in thousands, all intercompany transactions have been eliminated):



	Three Months Ended March 31,
	2017		2016
Revenue:
North America^(a)	$	184,287	$	185,714
Europe, Middle East and Africa	57,262		56,898
Asia-Pacific	10,529		6,372
Latin America	—		13
Total net service revenue	252,078		248,997
Reimbursable-out-of-pocket expenses	129,840		164,090
Total revenue	$	381,918	$	413,087

(a)Net service revenue for the North America region includes revenue attributable to the United States of $178.4 million and $180.5 million, or 70.8% and 72.5% of net service revenue, for the three months ended March 31, 2017 and March 31, 2016, respectively. No other country represented more than 10% of net service revenue for any period.

Long-lived assets by geographic area for each period were as follows (in thousands):



	March 31, 2017		December 31, 2016
Property and equipment, net:
North America^(a)	$	37,871	$	41,057
Europe, Middle East and Africa	11,975		11,235
Asia-Pacific	6,755		5,101
Latin America	884		913
Total property and equipment, net	$	57,485	$	58,306

(a)Long-lived assets for the North America region include property and equipment, net attributable to the United States of $37.4 million and $40.6 million as of March 31, 2017 and December 31, 2016, respectively.