Intangible Assets, Net - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified			9 Months Ended					9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013	Sep. 30, 2014 Precision Metal Components Segment [Member]	Sep. 30, 2014 Precision Metal Components Segment [Member] Customer Contracts [Member]	Sep. 30, 2014 Precision Metal Components Segment [Member] Trade Names [Member]	Sep. 30, 2014 Precision Metal Components Segment [Member] Developed Technology [Member]	Sep. 30, 2014 Precision Metal Components Segment [Member] Whirlaway	Sep. 30, 2014 Metal Bearing Components Segment [Member] Customer Contracts [Member] Contracts
Goodwill And Intangible Assets [Line Items]
Indefinite lived intangible asset not subject to amortization	$ 54,217	$ 900					$ 900
Intangible assets subject to amortization				46,200	4,100	798
Finite lived intangible asset, useful life				12 years	15 years	5 years		10 years
Amortization of intangible assets			4,283					263
Intangible assets subject to amortization								$ 2,630
Customer contract intangible assets related to the acquisition of RKF and Chelsea								2