Goodwill and Intangible Assets, Goodwill (Details) (USD $) In Thousands, unless otherwise specified			3 Months Ended				6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013	Dec. 31, 2013 Valent Aerostructures, LLC [Member]	Dec. 31, 2013 Engineering Services [Member]	Dec. 31, 2013 Integrated Technologies, Inc. [Member]	Dec. 31, 2013 TASS, Inc. [Member]	Jun. 30, 2014 Tempco [Member]	Jun. 30, 2014 Aerostructures [Member]	Dec. 31, 2013 Aerostructures [Member]	Jun. 30, 2014 Aerostructures [Member] Valent Aerostructures, LLC [Member]	Dec. 31, 2013 Aerostructures [Member] Valent Aerostructures, LLC [Member]	Jun. 30, 2014 Engineering Services [Member]	Dec. 31, 2013 Engineering Services [Member]
Goodwill [Line Items]
Goodwill, Gross	$ 192,694	$ 192,694						$ 141,953	$ 141,953			$ 50,741	$ 50,741
Goodwill, Impaired, Accumulated Impairment Loss	(79,471)	(79,471)						(79,471)	(79,471)			0	0
Goodwill acquired	113,223	113,223		50,741	6,194			62,482	62,482	56,288	56,288	50,741	50,741
Goodwill, Impairment Loss			$ 73,528				$ 5,943