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Segment Reporting (Details 1) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
Segment Reporting [Abstract]
Assets, Net	$ 1,200,153us-gaap_AssetsNet	$ 1,084,257us-gaap_AssetsNet
Cash and cash equivalents	179,587	270,861	272,932	206,690
Other assets	96,078us-gaap_OtherAssets	90,449us-gaap_OtherAssets
TOTAL ASSETS	$ 1,475,818us-gaap_Assets	$ 1,445,567us-gaap_Assets

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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