Annual report pursuant to Section 13 and 15(d)

Commitments And Contingencies (Narrative) (Details)

v2.4.1.9
Commitments And Contingencies (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Commitments And Contingencies [Abstract]      
Contingency reserve $ 0us-gaap_LossContingencyAccrualAtCarryingValue    
Expenses charged to operations $ 25.1us-gaap_LeaseAndRentalExpense $ 23.1us-gaap_LeaseAndRentalExpense $ 22.1us-gaap_LeaseAndRentalExpense