Commitments and Contingencies (Details) $ in Thousands	3 Months Ended	12 Months Ended			172 Months Ended
	Jun. 30, 2014 USD ($)	Dec. 31, 2015 USD ($) Officer Claim	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)	Dec. 31, 2015 USD ($) Claim
Loss Contingencies [Line Items]
Total rent expense		$ 9,756	$ 9,702	$ 9,814
Future minimum rental payments under operating leases [Abstract]
2016		7,393			$ 7,393
2017		6,278			6,278
2018		4,421			4,421
2019		2,645			2,645
2020		2,303			2,303
Thereafter		6,269			6,269
Total		29,309			29,309
Warranty expense		94,600	84,500	78,100
Changes in product warranties [Roll forward]
Balance, beginning of period		19,328	18,041
Liabilities accrued for current year sales		94,593	84,480
Settlements of warranty claims		(90,526)	(83,193)
Balance, end of period		$ 23,395	19,328	18,041	23,395
Number of key officers | Officer		2
Payment for settled claims	$ 10,600	$ 0	(10,650)	0
Financial Standby Letter of Credit [Member]
Changes in product warranties [Roll forward]
Outstanding letters of credit with certain vendors		3,900			$ 3,900
Real Estate [Member]
Loss Contingencies [Line Items]
Total rent expense		7,218	7,355	7,331
Other [Member]
Loss Contingencies [Line Items]
Total rent expense		$ 2,538	$ 2,347	$ 2,483
Asbestos [Member]
Changes in product warranties [Roll forward]
Pending claims, approximate number | Claim		2,110			2,110
Payment for settled claims					$ 18,900
Increase for low end of range		$ 2,800
Increase for high end of range		4,300
Range of possible loss, minimum		40,000			40,000
Range of possible loss, maximum		75,500			75,500
Asbestos [Member] | Minimum [Member]
Changes in product warranties [Roll forward]
Estimated legal costs		33,300			33,300
Asbestos [Member] | Maximum [Member]
Changes in product warranties [Roll forward]
Estimated legal costs		$ 51,100			$ 51,100