Accounts Payable and Accrued Expenses

12 Months Ended

Dec. 31, 2014

Payables and Accruals [Abstract]

Accounts Payable and Accrued Expenses

Accounts Payable and Accrued Expenses

Accounts payable and accrued expenses consisted of the following (in thousands): 

	December 31,
	2014		2013
Trade accounts payable	$	11,995	$	11,815
Accrued salaries, vacation and benefits	18,857		15,731
Other accrued expenses	20,608		20,127
Accrued contingent consideration	2,737		2,405
Negative cash book balance	4,821		5,261
	$	59,018	$	55,339