Revenue Recognition (Tables)

12 Months Ended

Dec. 31, 2020

Revenue from Contract with Customer [Abstract]

Schedule of Revenue Disaggregated by Line of Business

The following table presents the Company’s revenues disaggregated by line of business (in thousands):

	Year Ended December 31,
	2020		2019		2018
Accountemps	$	1,558,024	$	1,985,221	$	1,941,544
OfficeTeam	764,947		1,040,755		1,065,427
Robert Half Technology	695,418		765,831		717,166
Robert Half Management Resources	698,942		792,757		738,810
Elimination of intersegment revenues (a)	(239,996)		(172,439)		(132,381)
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
Service revenues	$	5,109,000	$	6,074,432	$	5,800,271

(a) Service revenues for Accountemps, OfficeTeam, Robert Half Technology and Robert Half Management Resources include intersegment revenues, which represent revenues from services provided to the Company’s risk consulting and internal audit services segment in connection with the Company’s blended business solutions. Intersegment revenues for each line of business are aggregated and then eliminated as a single line.

Schedule of Contract Liability Activity

The following table sets forth the activity in contract liabilities from January 1, 2018 through December 31, 2020 (in thousands):

	Contract
	Liabilities
Balance as of January 1, 2018	$	9,003
Payments in advance of satisfaction of performance obligations	12,170
Revenue recognized	(10,542)
Other, including translation adjustments	2,366
Balance as of December 31, 2018	$	12,997
Payments in advance of satisfaction of performance obligations	13,030
Revenue recognized	(12,072)
Other, including translation adjustments	(1,007)
Balance as of December 31, 2019	$	12,948
Payments in advance of satisfaction of performance obligations	25,614
Revenue recognized	(20,687)
Other, including translation adjustments	377
Balance as of December 31, 2020	$	18,252