Segment Reporting (Details 1) - USD ($) $ in Thousands	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013
Segment Reporting [Abstract]
Assets, Net	$ 1,485,125		$ 1,084,257
Cash and cash equivalents	205,868	$ 179,587	270,861	$ 269,133	$ 272,932	$ 206,690
Other assets	95,656		90,449
TOTAL ASSETS	$ 1,786,649		$ 1,445,567