Warranty Costs (Tables)

3 Months Ended

Mar. 31, 2019

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 quarters ended March 31, 2019 and 2018 are as follows:

	March 31, 2019			March 31, 2018
Balance at beginning of period	$	9.4		$	7.5
Accrued current period warranty expense		1.0			0.5
Payments and adjustments		(1.7	)		(0.4	)
Balance at end of period	$	8.7		$	7.6