Schedule II - Valuation And Qualifying Accounts Schedule II - Valuation And Qualifying Accounts (Narratives) (Details) (Valuation reserve for deferred tax asset, USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Valuation and Qualifying Accounts Disclosure
Valuation Allowances and Reserves, Balance	$ 20,672	$ 18,214	$ 15,133	$ 0
Other Additions	2,458	3,081	15,133
Scenario, Previously Reported
Valuation and Qualifying Accounts Disclosure
Valuation Allowances and Reserves, Balance			$ 11,900