Warranty Liability (Tables)

9 Months Ended

Sep. 30, 2013

Warranty Liability

Schedule of rollforward of Company's warranty liability

	Three months ended						Nine months ended
	September 30, 2013			September 30, 2012			September 30, 2013			September 30, 2012
Balance at the beginning of the period	$	3,568		$	3,965		$	3,628		$	4,188
Establish warranty provision for Trynex	—			—			600			—
Warranty provision	375			293			1,018			1,066
Claims paid/settlements	(62		)	(85		)	(1,365		)	(1,081		)
Balance at the end of the period	$	3,881		$	4,173		$	3,881		$	4,173