Long-Lived Assets (Details Textual) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Goodwill And Intangible Assets Disclosure [Abstract]
Total amortization expense	$ 5.9	$ 6.9
Estimated total amortization expense 2016	22.5
Estimated total amortization expense 2017	17.2
Estimated total amortization expense 2018	13.9
Estimated total amortization expense 2019	9.9
Estimated total amortization expense 2020	$ 5.6