Accounting Policies (Details Textual 2) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2015	Dec. 31, 2014
Accounting Policies (Textual) [Abstract]
Unrealized losses	$ 62,838	$ 73,536
New York Times [Member]
Accounting Policies (Textual) [Abstract]
Notional amount	$ 640,000
Mortgage [Member]
Accounting Policies (Textual) [Abstract]
All-in lender interest rate	6.40%