Prepaid Expenses And Other Assets (Schedule Of Prepaid Expenses, Deferred Costs, And Other Assets) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Prepaid Expense And Other Assets [Abstract]
Prepaid expense, Current	$ 12,412	$ 11,349
Deferred costs and other current assets, Current	7,747	19,631
Total, Current	20,159	30,980
Prepaid expenses, Noncurrent	1,553	224
Deferred costs, Noncurrent	776	1,507
Other, Noncurrent	350	437
Total, Noncurrent	$ 2,679	$ 2,168