Contingently Issuable Common Stock (Tables)

12 Months Ended

Dec. 31, 2012

Business Combinations [Abstract]

Schedule of Business Acquisitions by Acquisition, Fair Value of Contingent Consideration

Adjustments to the fair value of the Contingent Payment are recognized within "other income (expense)" in the Consolidated Statements of Operations and Comprehensive Income (Loss).

	Fair Value of Contingently Issuable Common Stock
December 31, 2011	$	38,700
Fair value adjustment of Contingent Payment for year ended December 31, 2012	13,700
December 31, 2012	$	52,400