Schedule II - Valuation And Qualifying Accounts (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Allowance for Doubtful Accounts [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	$ 6,111	$ 1,361	$ 527
Additions, Charged to Costs and Expenses	655	4,037	1,037
Additions, Charged to Other Accounts	130	1,122
Deductions	5,818	409	203
Balance at End of Period	1,078	6,111	1,361
Allowance for Notes Receivable [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period	1,592
Additions, Charged to Costs and Expenses	162	1,592
Deductions	1,754
Balance at End of Period		$ 1,592