Business Segments (Tables)

12 Months Ended

Dec. 31, 2020

Segment Reporting [Abstract]

Reconciliation of Revenue and Operating Income by Reportable Segment to Consolidated Results

The following table provides a reconciliation of service revenues and segment income by reportable segment to consolidated results (in thousands):

	Year Ended December 31,
	2020		2019		2018
Service revenues
Temporary and consultant staffing	$	3,477,335	$	4,412,125	$	4,330,566
Permanent placement staffing	370,109		533,432		511,989
Risk consulting and internal audit services	1,261,556		1,128,875		957,716
	$	5,109,000	$	6,074,432	$	5,800,271
Segment income
Temporary and consultant staffing	$	237,279	$	410,153	$	404,800
Permanent placement staffing	28,799		83,885		90,801
Risk consulting and internal audit services	155,680		127,713		93,324
Combined segment income	421,758		621,751		588,925
Amortization of intangible assets	1,219		1,361		1,705
Interest income, net	(1,343)		(5,125)		(4,382)
Income before income taxes	$	421,882	$	625,515	$	591,602

Revenue and Long-Lived Assets by Geographic Location

The following tables represent revenues and long-lived assets by geographic location (in thousands):

	Year Ended December 31,
	2020		2019		2018
Service revenues (a)
Domestic	$	3,984,742	$	4,708,715	$	4,433,767
Foreign (b)	1,124,258		1,365,717		1,366,504
	$	5,109,000	$	6,074,432	$	5,800,271
	December 31,
	2020		2019		2018
Property and equipment, net
Domestic	$	88,117	$	99,365	$	96,169
Foreign	21,700		29,020		29,007
	$	109,817	$	128,385	$	125,176

(a) There were no customers that accounted for more than 10% of the Company’s total service revenues in any year presented.

(b) No individual country represented more than 10% of revenues in any year presented.