SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) (Allowance for Deferred Tax Assets [Member], USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Allowance for Deferred Tax Assets [Member]
Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at Beginning of Year	$ 100,026,000	$ 85,420,000	$ 71,351,000
Additions Charged to Costs and Expense	0	0	0
Additions Charged to Other Accounts	23,440,000	14,606,000	14,069,000
Deductions	0	0	0
Balance at End of Year	$ 123,466,000	$ 100,026,000	$ 85,420,000