Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2015

Accounting Policies [Abstract]

Estimated Useful Lives of Property and Equipment

Property and Equipment

Property and equipment are recorded at cost and are depreciated over the estimated useful lives of the related assets using the straight-line method.  The estimated useful lives of property and equipment for purposes of computing depreciation are as follows:

Buildings and improvements	5-30 years
Computer hardware and software	2-5 years
Software development costs	3-5 years
Furniture, fixtures and other	5-7 years
Aircraft	15-20 years

Activity and Balances Related to Incurred But Not Paid Worker's Compensation Claims

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

	Year ended December 31,
	2015			2014
	(in thousands)
Beginning balance	$	136,088		$	120,833
Accrued claims	67,559			55,971
Present value discount	(3,095		)	(1,998		)
Paid claims	(38,368		)	(38,718		)
Ending balance	$	162,184		$	136,088
Current portion of accrued claims	$	37,438		$	44,040
Long-term portion of accrued claims	124,746			92,048
	$	162,184		$	136,088