Segment Reporting (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Net sales and operating income by segment [Abstract]
Net sales	$ 183,659	$ 166,784
Income from operations	9,328	6,569
Wheels [Member]
Net sales and operating income by segment [Abstract]
Net sales	108,336	92,218
Income from operations	13,252	9,742
Gunite [Member]
Net sales and operating income by segment [Abstract]
Net sales	37,740	43,973
Income from operations	2,741	3,278
Brillion Iron Works [Member]
Net sales and operating income by segment [Abstract]
Net sales	37,583	30,593
Income from operations	2,196	1,275
Corporate / Other [Member]
Net sales and operating income by segment [Abstract]
Income from operations	(8,861)	(7,726)
Inter-segment sales [Member]
Net sales and operating income by segment [Abstract]
Net sales	$ 2,175	$ 3,841