Operations and Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Schedule of property plant and equipment useful life

Property, plant and equipment are stated at cost and depreciated using the straight-line method over the following estimated useful lives:

Building and improvements	40 years
Leasehold improvements	Shorter of life of asset or life of lease
Machinery and equipment	2 to 15 years

Schedule of calculation of basic and diluted earnings per share

The following table sets forth the computation of basic and diluted earnings per share at December 31, 2010, 2011 and 2012, respectively: 

	2010		2011		2012
Net income	$	30,346	$	752	$	40,481
Basic-weighted average shares outstanding	28,715		28,246		28,301
Effect of dilutive potential securities	196		387		352
Diluted-weighted average shares outstanding	28,911		28,633		28,653
Basic EPS	$	1.06	$	0.03	$	1.43
Diluted EPS	$	1.05	$	0.03	$	1.41

Schedule of accumulated other comprehensive loss

Accumulated other comprehensive loss consists of the following:

	Cash Flow Hedging Gain (Loss)			Pension Liability			Cumulative Translation Adjustments		Accumulated Other Comprehensive Loss
Balance, December 31, 2011	$	2,973		$	(31,250	)	$	1,929	$	(26,348	)
Pension liability, net of income tax	—			875			—		875
Cash flow hedging loss, net of income tax	(4,103		)	—			—		(4,103		)
Foreign currency translation  adjustments	—			—			1,995		1,995
Balance, December 31, 2012	$	(1,130	)	$	(30,375	)	$	3,924	$	(27,581	)