Accounts Payable and Accrued Expenses

12 Months Ended

Dec. 31, 2016

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,
	2016		2015
Trade accounts payable	$	14,534	$	13,981
Accrued salaries, vacation and benefits	18,049		17,888
Other accrued expenses	23,379		23,143
Accrued contingent consideration	3,590		2,381
Negative cash book balance	5,044		3,678
	$	64,596	$	61,071