Operating Segments and Related Information (Details 6) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Business Unit Reporting, Asset Reconciling Item [Line Items]
Long-lived assets	$ 1,969,983	$ 1,987,899
United States
Business Unit Reporting, Asset Reconciling Item [Line Items]
Long-lived assets	1,139,267	1,144,758
Europe [Member]
Business Unit Reporting, Asset Reconciling Item [Line Items]
Long-lived assets	426,619	440,549
Other Geographic Region [Member]
Business Unit Reporting, Asset Reconciling Item [Line Items]
Long-lived assets	$ 404,097	$ 402,592