Revenue Recognition (Tables)

9 Months Ended

Sep. 30, 2019

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):

	Three Months Ended    September 30,				Nine Months Ended    September 30,
	2019		2018		2019		2018
Accountemps	$	489,690	$	479,415	$	1,460,155	$	1,431,567
OfficeTeam	265,941		265,235		779,010		794,749
Robert Half Technology	185,268		176,552		536,571		508,060
Robert Half Management Resources	177,562		162,564		530,064		503,652
Temporary and consulting staffing	1,118,461		1,083,766		3,305,800		3,238,028
Permanent placement staffing	134,582		129,667		407,038		386,105
Risk consulting and internal audit services	299,089		252,793		824,209		694,480
Net service revenues	$	1,552,132	$	1,466,226	$	4,537,047	$	4,318,613

Schedule of Contract Liability Activity

The following table sets forth the activity in contract liabilities from December 31, 2018, through September 30, 2019 (in thousands):

	Contract Liabilities
Balance as of December 31, 2018	$	12,997
Payments in advance of satisfaction of performance obligations	8,766
Revenue recognized	(8,793		)
Other, including translation adjustments	(3,353		)
Balance as of September 30, 2019	$	9,617