Business Segments (Tables)

6 Months Ended

Jun. 30, 2017

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, 2017 and 2016 (in thousands):

	Three Months Ended   June 30,						Six Months Ended   June 30,
	2017			2016			2017			2016
Net service revenues
Temporary and consultant staffing	$	998,296		$	1,032,083		$	1,985,902		$	2,041,248
Permanent placement staffing	112,653			113,439			216,286			219,728
Risk consulting and internal audit services	197,479			198,638			393,610			385,809
	$	1,308,428		$	1,344,160		$	2,595,798		$	2,646,785
Operating income
Temporary and consultant staffing	$	93,088		$	107,133		$	183,459		$	205,016
Permanent placement staffing	21,046			24,576			39,348			46,078
Risk consulting and internal audit services	16,583			17,788			33,489			32,301
	130,717			149,497			256,296			283,395
Amortization of intangible assets	365			314			666			602
Interest income, net	(355		)	(231		)	(578		)	(412		)
Income before income taxes	$	130,707		$	149,414		$	256,208		$	283,205