Contingencies and Significant Estimates - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Product Warranty Liability [Line Items]
Accruals for environmental matters	$ 500,000
Period over which product liability self-insurance retention levels have fluctuated (in years)	10 years
Self insurance reserve	$ 1,300,000.0
Product liability reserves	2,100,000	$ 2,300,000
Product liability reserves for actual cases	500,000	700,000
Product liability reserves for claims incurred but not reported	1,600,000
Product warranties due within one year	24,600,000	27,900,000
Product warranties due after a year	11,300,000	$ 8,400,000
Minimum
Product Warranty Liability [Line Items]
Self insurance reserve per occurrence	100,000
Maximum
Product Warranty Liability [Line Items]
Self insurance reserve per occurrence	300,000
Product liability self-insurance retention levels per occurrence	$ 300,000