Income Taxes Income Taxes (Narrative) (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010
Income Taxes [Line Items]
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	$ 2,389,000	$ 1,676,000
Deferred Tax Assets, Valuation Allowance		(1,222,000)
Deferred Tax Assets, Operating Loss Carryforwards, Foreign	21,146,000	4,609,000
Unrecognized Tax Benefits	28,100,000	26,500,000	21,400,000	18,500,000	17,600,000
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Lower Bound	0
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Estimated Range of Change, Upper Bound	$ 9,400,000