Assets and Liabilities Measured at Fair Value (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
	Mar. 31, 2011	Jun. 30, 2012	Jun. 30, 2012 Recurring Fair Value Measurement [Member] Estimate of Fair Value, Fair Value Disclosure [Member]		Dec. 31, 2011 Recurring Fair Value Measurement [Member] Estimate of Fair Value, Fair Value Disclosure [Member]		Jun. 30, 2012 Recurring Fair Value Measurement [Member] Level 1 [Member]		Dec. 31, 2011 Recurring Fair Value Measurement [Member] Level 1 [Member]		Jun. 30, 2012 Recurring Fair Value Measurement [Member] Level 2 [Member]		Dec. 31, 2011 Recurring Fair Value Measurement [Member] Level 2 [Member]		Jun. 30, 2012 Recurring Fair Value Measurement [Member] Level 3 [Member]		Dec. 31, 2011 Recurring Fair Value Measurement [Member] Level 3 [Member]		Dec. 31, 2011 Non-recurring Fair Value Measurement [Member] Estimate of Fair Value, Fair Value Disclosure [Member]		Dec. 31, 2011 Non-recurring Fair Value Measurement [Member] Level 1 [Member]		Dec. 31, 2011 Non-recurring Fair Value Measurement [Member] Level 2 [Member]		Dec. 31, 2011 Non-recurring Fair Value Measurement [Member] Level 3 [Member]
Assets at Fair Value [Abstract]
Money market fund			$ 4,008	[1]	$ 7,503	[1]	$ 4,008	[1]	$ 7,503	[1]	$ 0	[1]	$ 0	[1]	$ 0	[1]	$ 0	[1]
Intangible assets, net																			17,642	[2]	0	[2]	0	[2]	17,642	[2]
Total																			17,642		0		0		17,642
Impairment loss	$ 1,163	$ 1,163

[1] Institutional Money Market: Valued at the closing price reported on the active markets on which the individual securities are traded (Level 1).

[2] During the first quarter of 2011, a triggering event occurred with regard to a certain proprietary technology intangible asset as a result of a failure to conclude a possible sale of a product line. The Company did not have plans to utilize this technology in the near term and believed the current market for the product line to be limited; thus, utilizing the income approach with a level 3 valuation, the Company expected zero cash flows. As such, a full impairment loss of $1,163 was recognized as of March 31, 2011. The impairment loss was recognized in the Aerostructures segment in the selling, general and administrative expenses line of the Condensed Consolidated Statements of Operations for the six months ended June 30, 2011.