Business and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2011

Business and Summary of Significant Accounting Policies [Abstract]

Useful Lives of Property, Plant and Equipment

Depreciation expense is determined using the straight-line method based on the following useful lives:

Buildings	20 years
Machinery, equipment and software	3 to 12 years
Leasehold improvements	Shorter of estimated useful life or lease term

Computation of Basic and Diluted Earnings Per Share

The computation of basic and diluted earnings per share is as follows (dollars in thousands, except per share amounts):

			Years Ended December 31,
Numerator			2011		2010		2009
		Net Income	$	67,394	$	47,469	$	36,607
		Percentage allocated to shareholders (1)		99.1%		99.0%		98.8%
		Numerator for basic and diluted earnings per share	$	66,787	$	46,994	$	36,168
Denominator
		Denominator for basic earnings per share -
		weighted-average shares outstanding		58,531		57,683		56,787
		Dilutive effect of stock options and restricted stock units		596		652		709
		Denominator for diluted earnings per share		59,127		58,335		57,496
Per share income
		Basic	$	1.14	$	0.81	$	0.64
		Diluted		1.13		0.81		0.63
_________________________
	(1)	Basic weighted-average shares outstanding		58,531		57,683		56,787
		Basic weighted-average shares outstanding and
		unvested restricted stock units expected to vest		59,078		58,254		57,494
		Percentage allocated to shareholders		99.1%		99.0%		98.8%

Project Research and Development Expenses Incurred and Amounts Funded

The following table summarizes the COTS program research and development expenses incurred and amounts funded by NASA (in millions):

	2011			2010			2009			Inception To Date
Research and development costs incurred (1)	$	158.8		$	136.5		$	96.6		$	417.9
Less amounts funded by NASA		(108.0	)		(69.1	)		(60.6	)		(260.3	)
Net research and development expenses	$	50.8		$	67.4		$	36.0		$	157.6

(1) Includes associated general and administrative expenses.