Other Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Capitalized Computer Software, Net	$ 11,037	$ 8,077
technologylicenseasset	2,800	0
Deposits Assets, Noncurrent	694	526
Non-current deferred service billings receviable	34	763
Other Assets, Miscellaneous, Noncurrent	1,213	350
Other Assets, Noncurrent	15,778	9,716
Capitalized Computer Software, Accumulated Amortization	$ 7,329	$ 5,018