Segment Information (Details Textual) $ in Millions	12 Months Ended
	Dec. 31, 2019 USD ($) segment	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)
Revenue from External Customer [Line Items]
Long-lived assets related to operations in Denmark	$ 3,674.3	$ 3,601.2	$ 3,182.4
Segment Information (Textual) [Abstract]
Number of reportable segment | segment	1
Solothurn
Revenue from External Customer [Line Items]
Long-lived assets related to operations in Denmark	$ 2,028.8	1,748.5	1,215.7
DENMARK
Revenue from External Customer [Line Items]
Long-lived assets related to operations in Denmark		$ 646.5	$ 707.1