Acquisitions (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended		12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012	Dec. 31, 2012 Valent Aerostructures, LLC [Member]	Dec. 28, 2012 Valent Aerostructures, LLC [Member]	Dec. 31, 2012 TASS, Inc. [Member]	Aug. 07, 2012 TASS, Inc. [Member]
Business Acquisition [Line Items]
Acquisition date					Dec. 28, 2012		Aug. 07, 2012
Cost of acquisition						$ 229,529		$ 10,365
Equity Interests Issued					15,000
Earn-out period					1 year
Accrued contingent consideration						7,950
Contingent consideration write-off	(7,950)	0	(7,950)	0
Notes payable								$ 1,000