4. Debt Summary Of Maturities And Percentage Of Redemption Price Of Unsecured Notes (Details) (Unsecured Notes [Member])	Jun. 30, 2013
2013 [Member]
Debt Instrument [Line Items]
Redemption Price	104.25%
2014 [Member]
Debt Instrument [Line Items]
Redemption Price	102.125%
2015 and thereafter
Debt Instrument [Line Items]
Redemption Price	100.00%