Fair Value Of Financial Instruments Fair Value Of Financial Instruments (Assets Measured on Recurring Basis, Unobservable Input Reconciliation) (Details) (USD $)	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2013 Fair Value, Inputs, Level 3 [Member]	Jun. 30, 2013 Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2012 Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Business Combination, Contingent Consideration, Liability			$ 4,000,000	$ 2,600,000	$ 5,856,000	$ 4,256,000
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3	0	1,600,000
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings	0	0
Fair Value, Measurements with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases, (Sales), Issuances, (Settlements)	1,400,000	0
Business Combination, Contingent Consideration, Liability			4,000,000	2,600,000	5,856,000	4,256,000
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings	$ 0	$ 0