Segment Reporting (Details 1) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Jun. 30, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Dec. 31, 2012
Segment Reporting [Abstract]
Assets, Net	$ 2,547,784		$ 2,595,408
Cash and cash equivalents	245,925	269,133	206,690	211,434	249,531	125,440
Short term investments	49,520		0
Other assets	72,095		83,880
TOTAL ASSETS	$ 2,915,324		$ 2,885,978