Operating Segments and Related Information (Details 6) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Business Unit Reporting, Asset Reconciling Item [Line Items]
Long-lived assets	$ 1,929,628	$ 1,988,824
United States
Business Unit Reporting, Asset Reconciling Item [Line Items]
Long-lived assets	1,104,883	1,137,375
Europe [Member]
Business Unit Reporting, Asset Reconciling Item [Line Items]
Long-lived assets	416,394	435,024
Other Geographic Region [Member]
Business Unit Reporting, Asset Reconciling Item [Line Items]
Long-lived assets	$ 408,351	$ 416,425