Prepaid Expenses And Other Assets (Components Of Prepaid Expenses And Other Assets) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deferred sales commissions	$ 20,132	$ 20,088
Prepaid software maintenance	9,785	6,875
Deferred professional services costs	6,026	7,445
Software development costs	7,889	4,172
Prepaid royalties	3,275	3,322
Other assets	6,340	7,464
Total prepaid expenses and other assets	53,447	49,366
Less: Long-term portion	22,647	19,251
Total prepaid expenses and other current assets	$ 30,800	$ 30,115