Accrued Liabilities (Tables)

12 Months Ended

Dec. 31, 2013

Payables and Accruals [Abstract]

Schedule of Accrued Liabilities

Accrued liabilities consist of the following balances:

	December 31,
(in thousands)	2013		2012
Salaries, wages and bonuses	$	15,509	$	12,433
Warranty	4,994		5,007
State taxes	5,217		4,922
Other	7,762		9,239
	$	33,482	$	31,601