Derivative Instruments And Hedging Strategies (Fair Values Of Derivative Instruments) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012
Cash Flow Hedging [Member]
Derivative [Line Items]
Derivative Liability	$ 4,135
Interest Rate Swap Agreements [Member]
Derivative [Line Items]
Derivative Assets	0
Derivative Liability	2,866
Derivatives Designated As Hedging Instruments [Member]
Derivative [Line Items]
Derivative Assets	0
Derivative Liability	4,135
Derivatives Not Designated As Hedging Instruments [Member]
Derivative [Line Items]
Derivative Assets	6,918
Derivative Liability	11,958
Derivative Financial Instruments, Assets [Member]
Derivative [Line Items]
Derivative Assets	6,918
Options On Equities And Equity Indices [Member]
Derivative [Line Items]
Derivative Assets	326
Derivative Liability	2,719
Foreign Exchange Contract [Member]
Derivative [Line Items]
Derivative Assets	307
Derivative Liability	746
Exchange Traded [Member]
Derivative [Line Items]
Derivative Assets	1,485
Derivative Liability	5,160
Commodity Swap, Option And Future Contracts, Non-Exchange Traded [Member]
Derivative [Line Items]
Derivative Assets	4,800
Derivative Liability	467
Derivative Financial Instruments, Liabilities [Member]
Derivative [Line Items]
Derivative Liability	$ 16,093