Long-Term Debt (Repurchase Of Senior Notes) (Details) (USD $) In Thousands	Sep. 30, 2011
Repurchase Price	$ 50,940
Face Value	48,380
Long Term Debt Loss On Repurchase	2,560
Senior Notes Due 2015 [Member]
Repurchase Price	38,134
Face Value	37,000
Long Term Debt Loss On Repurchase	1,134
Senior Notes Due 2016 [Member]
Repurchase Price	10,646
Face Value	9,380
Long Term Debt Loss On Repurchase	1,266
Senior Notes Due 2019 [Member]
Repurchase Price	2,160
Face Value	2,000
Long Term Debt Loss On Repurchase	$ 160