Segment Information - Segment Information (Detail) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended		9 Months Ended	12 Months Ended
	Jun. 30, 2017	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2017	Jun. 30, 2016	Sep. 30, 2016	Dec. 31, 2016	Dec. 31, 2015	Mar. 31, 2017
Segment Reporting Information [Line Items]
Revenues from external customers	$ 225,875		$ 214,272		$ 452,189	$ 426,498
Income (loss) from operations	20,593	$ 18,727	17,302	$ 11,784	42,751	29,086	$ 47,813	$ 59,437	$ 26,760
Total assets	1,405,816		1,394,733		1,405,816	1,394,733		$ 1,355,700	$ 1,386,805	$ 1,386,655
Precision Bearing Components Group [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues from external customers	67,928		65,157		136,687	129,902
Income (loss) from operations	8,351		6,474		16,752	12,800
Total assets	240,666		226,943		240,666	226,943
Autocam Precision Components Group [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues from external customers	86,658		82,991		173,104	166,981
Income (loss) from operations	10,688		7,770		21,289	14,297
Total assets	427,453		418,664		427,453	418,664
Precision Engineered Products Group [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Revenues from external customers	71,289		66,124		142,398	129,615
Income (loss) from operations	10,600		10,782		21,514	16,203
Total assets	723,122		740,475		723,122	740,475
Corporate and Consolidations [Member]
Segment Reporting Information [Line Items]
Income (loss) from operations	(9,046)		(7,724)		(16,804)	(14,214)
Total assets	$ 14,575		$ 8,651		$ 14,575	$ 8,651