Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2018

Accounting Policies [Abstract]

Activity and balances related to incurred but not paid workers' compensation claims

The following table provides the activity and balances related to incurred but not paid workers’ compensation claims:

	Six Months Ended   June 30,
	2018			2017
	(in thousands)
Beginning balance, January 1,	$	207,630		$	183,928
Accrued claims	33,260			34,242
Present value discount	(3,360		)	(2,008		)
Paid claims	(21,686		)	(20,044		)
Ending balance	$	215,844		$	196,118
Current portion of accrued claims	$	41,827		$	41,703
Long-term portion of accrued claims	174,017			154,415
	$	215,844		$	196,118

Disaggregation of Revenue [Table Text Block]

The following table presents our revenues disaggregated by geography:

	Three Months Ended   June 30,				Six Months Ended   June 30,
	2018		2017		2018		2017
	(in thousands)
Northeast	$	239,278	$	204,285	$	511,642	$	440,385
Southeast	108,264		92,049		223,452		190,855
Central	153,025		131,099		321,092		273,876
Southwest	213,920		185,094		446,785		389,201
West	194,986		170,452		407,605		357,896
Other revenue(1)	12,822		12,573		26,091		26,003
Total revenue	$	922,295	$	795,552	$	1,936,667	$	1,678,216

_____________________________

⁽¹⁾ Comprised primarily of revenues generated by our other products and services offerings.