Segment Information - Segment Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Segment Reporting Information [Line Items]
Revenues from external customers	$ 125,632,000	$ 93,023,000	$ 334,840,000	$ 283,125,000
Income from operations	2,552,000	7,794,000	19,127,000	21,353,000
Interest expense	5,622,000	655,000	6,737,000	2,149,000
Other expense (income) net	1,557,000	(281,000)	1,769,000	84,000
Provision (benefit) for income taxes	(562,000)	2,368,000	4,247,000	6,427,000
Share of net income from joint venture	225,000		225,000
Net income (loss)	(3,840,000)	5,052,000	6,599,000	12,693,000
Total assets	713,139,000	261,430,000	713,139,000	261,430,000	262,402,000
Metal Bearing Components Segment [Member]
Segment Reporting Information [Line Items]
Revenues from external customers	69,575,000	64,817,000	213,513,000	194,374,000
Income from operations	7,644,000	7,787,000	25,164,000	20,952,000
Total assets	216,527,000	193,270,000	216,527,000	193,270,000
Precision Metal Components Segment [Member]
Segment Reporting Information [Line Items]
Revenues from external customers	46,637,000	18,790,000	95,642,000	61,076,000
Income from operations	5,515,000	2,135,000	10,724,000	6,616,000
Total assets	447,946,000	39,440,000	447,946,000	39,440,000
Plastic and Rubber Components Segment [Member]
Segment Reporting Information [Line Items]
Revenues from external customers	9,420,000	9,416,000	25,685,000	27,675,000
Income from operations	178,000	2,000	827,000	717,000
Total assets	18,157,000	17,734,000	18,157,000	17,734,000
Corporate and Consolidations [Member]
Segment Reporting Information [Line Items]
Income from operations	(10,785,000)	(2,130,000)	(17,588,000)	(6,932,000)
Total assets	$ 30,509,000	$ 10,986,000	$ 30,509,000	$ 10,986,000