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Discontinued Operations (Narrative) (Details)	0 Months Ended		12 Months Ended
Discontinued Operations (Narrative) (Details)	Aug. 03, 2011 USD ($)	Mar. 18, 2011 USD ($)	Dec. 31, 2011 USD ($)	Dec. 31, 2010 USD ($)	Dec. 31, 2009 USD ($)	Aug. 03, 2011 EUR (€)
Discontinued Operations [Abstract]
Proceeds from the sale of business		$ 188,588,000	$ 161,206,000	$ 0	$ 0
Short-term receivable from buyer		27,580,000	27,580,000	0		1,000,000
Gain (loss) on sale of discontinued operations	1,248,000		68,745,000	0	0
Income tax benefit (expense) on sale	$ 13,308,000		$ (11,773,000)	$ 0	$ 0
Bears interest rate						6.50%

Pretax gain (loss), not previously recognized and resulting from the sale of a business component, which is recognized at the date of sale. A gain (loss) reflects the amount by which the consideration received exceeds (is exceeded by) the net carrying amount (reflecting previous provisions for loss on disposal, if any) of the disposal group.

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- Definition

Tax expense or benefit on the gain (loss), not previously recognized and resulting from the sale of a business component, which is recognized at the date of sale. A gain (loss) reflects the amount by which the consideration received exceeds (is exceeded by) the net carrying amount (reflecting previous provisions for loss on disposal, if any) of the disposal group.

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