Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 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):

	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
Accountemps	$	322,596	$	486,992	$	803,037	$	970,465
OfficeTeam	132,730		261,034		371,766		513,069
Robert Half Technology	151,542		179,375		334,965		351,303
Robert Half Management Resources	146,518		175,311		335,738		352,502
Temporary and consulting staffing	753,386		1,102,712		1,845,506		2,187,339
Permanent placement staffing	71,030		140,894		191,519		272,456
Risk consulting and internal audit services	283,910		272,779		577,992		525,120
Service revenues	$	1,108,326	$	1,516,385	$	2,615,017	$	2,984,915

Schedule of Contract Liability Activity

The following table sets forth the activity in contract liabilities from December 31, 2018, through June 30, 2020 (in thousands):

	Contract Liabilities
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	11,847
Revenue recognized	(13,509)
Other, including translation adjustments	548
Balance as of June 30, 2020	$	11,834