BASIS OF PRESENTATION OF UNAUDITED INTERIM CONDENSED CONSOLIDATED FINANCIAL STATEMENTS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: (Details 3) (USD $)				3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Mar. 31, 2014 UNITED STATES	Dec. 31, 2013 UNITED STATES	Mar. 31, 2014 UNITED KINGDOM
Valuation Allowance [Line Items]
Valuation Allowances and Reserves, Balance	$ 87,141,000	$ 83,140,000	$ 0
Valuation Allowance, Deferred Tax Asset, Change in Amount				2,750,000	83,140,000	1,251,000
Deferred Tax Assets, Net	$ 89,500,000