Long-Term Debt And Liquidity (Schedule Of Long-Term Debt) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Debt Instrument [Line Items]
Revolving Facility	$ 85,000	$ 69,500
Total	559,643	535,709
Senior Subordinated Notes [Member]
Debt Instrument [Line Items]
Total	172,729	164,183
Other Debt [Member]
Debt Instrument [Line Items]
Total	$ 1,914	$ 2,026