Business Segments (Tables)

6 Months Ended

Jun. 30, 2019

Segment Reporting [Abstract]

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

The following table provides a reconciliation of revenue and operating income by reportable segment to consolidated results for the three and six months ended June 30, 2019 and 2018 (in thousands):

	Three Months Ended    June 30,						Six Months Ended    June 30,
	2019			2018			2019			2018
Net service revenues
Temporary and consultant staffing	$	1,102,712		$	1,087,974		$	2,187,339		$	2,154,262
Permanent placement staffing	140,894			135,038			272,456			256,438
Risk consulting and internal audit services	272,779			234,042			525,120			441,687
	$	1,516,385		$	1,457,054		$	2,984,915		$	2,852,387
Operating income
Temporary and consultant staffing	$	105,238		$	103,570		$	211,256		$	200,293
Permanent placement staffing	25,344			27,436			46,901			49,815
Risk consulting and internal audit services	28,820			18,505			47,474			33,770
	159,402			149,511			305,631			283,878
Amortization of intangible assets	341			442			683			905
Interest income, net	(1,042		)	(1,006		)	(2,538		)	(1,741		)
Income before income taxes	$	160,103		$	150,075		$	307,486		$	284,714