Workers Compensation (Tables)

12 Months Ended

Dec. 31, 2014

Insurance [Abstract]

Summary of Activities in Liability for Unpaid Claims and Claims Adjustment Expenses

The following summarizes the activities in liability for unpaid claims and claims adjustment expenses (in thousands):

	Year Ended December 31,
	2014			2013
Liability for unpaid claims and claims adjustment at    beginning of period	$	58,610		$	53,900
Plans acquired through business combinations		–			481
Incurred related to:
Current year		61,669			26,401
Prior years		(4,725	)		(3,319	)
Total incurred		56,944			23,082
Paid related to:
Current year		(13,525	)		(8,055	)
Prior years		(9,623	)		(10,798	)
Total paid		(23,148	)		(18,853	)
Liability for unpaid claims and claims adjustment at    end of period		92,406			58,610
Other premiums and collateral liabilities		19,820			10,152
Total workers compensation liabilities at end of period	$	112,226		$	68,762
Current portion included in worksite employee-related    liability		36,778			23,453
Long term portion	$	75,448		$	45,309