Goodwill and Identifiable Assets (Future Amortization Expense) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of intangible assets	$ 3,300	$ 700	$ 6,159	$ 1,633
Finite-Lived Intangible Assets, Net, Amortization Expense, Fiscal Year Maturity [Abstract]
2012	3,466		3,466
2013	13,081		13,081
2014	12,095		12,095
2015	11,846		11,846
2016	11,812		11,812
Thereafter	51,499		51,499
Net Carrying Amount	$ 103,799		$ 103,799		$ 5,158