Basis of Presentation - Restructuring Related Activities (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 0	$ 0
Severance costs
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	100,000		$ 600,000
Other exit costs
Restructuring Cost and Reserve [Line Items]
Restructuring reserve	$ 100,000		$ 200,000