Purchased Intangible Assets and Goodwill (Composition of Purchased Intangibles) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Goodwill and Intangible Assets Disclosure [Abstract]
Indefinite life intangible assets	$ 12,404	$ 12,316
Definite life intangible assets, net of accumulated amortization of $15,226 and $14,054	6,921	7,906
Total	19,325	20,222	21,200
Definite life intangible assets, accumulated amortization	$ 15,226	$ 14,054