Restructuring and Other Charges (Details) - Summary of Restructuring Reserve Activity - 2012 (USD $)	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2011
Restructuring and Other Charges (Details) - Summary of Restructuring Reserve Activity - 2012 [Line Items]
Restructuring and other charges	$ 0	$ 3,046,104	$ 385,610	$ 6,039,797	$ 1,800,000
Noncash deductions			(393,195)	(1,396,695)
Adjustments to prior estimate			7,585
Balance	0		0
Restructuring Reserve 2012 [Member]
Restructuring and Other Charges (Details) - Summary of Restructuring Reserve Activity - 2012 [Line Items]
Balance			2,680,006	0
Restructuring and other charges			0	6,328,464
Noncash deductions			0	(1,396,695)
Adjustments to prior estimate			16,849	0
Payments			(1,414,179)	(1,742,961)
Balance	$ 1,282,676	$ 3,188,808	$ 1,282,676	$ 3,188,808