Accrued Liabilities

12 Months Ended

Dec. 31, 2014

Accrued Liabilities [Abstract]

Accrued Liabilities

6.ACCRUED LIABILITIES 

Accrued liabilities consist of the following: 

	December 31,
	2014		2013
Insurance claims	$	44,849	$	42,732
Payroll and payroll-related		40,376		40,197
Interest payable		9,319		9,579
Cell processing reserve - current portion		6,136		7,013
Unrealized interest rate losses		6,023		3,373
Environmental remediation reserve - current portion		3,023		3,226
Other		11,221		12,906
	$	120,947	$	119,026