Description of Business (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013 Subsidiary
Description of Business (Textual) [Abstract]
Number of owned subsidiaries	2
Date of Agreement	Jun. 24, 2010
Purchase price of assets and liabilities assumed	$ 59,560
Effective date of agreement	Sep. 01, 2010
Capital stock acquired in cash	45,810
Acquisition of assets and liabilities in cash	13,750
Amount deposited into escrow	$ 15,000
Certificate of dissolution with Delaware Secretary of State	Aug. 31, 2011