Warranty Costs (Tables)

12 Months Ended

Dec. 31, 2016

Guarantees [Abstract]

Changes in Carrying Amount of Accrued Product Warranty Costs

Changes in the carrying amount of accrued product warranty costs for each of the years ended December 31, are as follows:

	December 31, 2016			December 31, 2015			December 31, 2014
Balance at beginning of period	$	9,468		$	7,792		$	8,739
Accrued current period warranty expense		1,355			4,429			1,537
Acquired warranty reserve		1,636			—			—
Payments and adjustments		(3,301	)		(2,753	)		(2,484	)
Balance at end of period	$	9,158		$	9,468		$	7,792