Fair Value Measurements (Financial Assets and Liabilities Measured at Fair Value) (Details) - Recurring - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Interest rate swap
Assets
Total assets	$ 7,545
Liabilities:
Total liabilities		$ 667
Marketable securities
Assets
Total assets		6,024
Level 1 | Interest rate swap
Assets
Total assets	0
Liabilities:
Total liabilities		0
Level 1 | Marketable securities
Assets
Total assets		6,024
Level 2 | Interest rate swap
Assets
Total assets	7,545
Liabilities:
Total liabilities		667
Level 2 | Marketable securities
Assets
Total assets		0
Level 3 | Interest rate swap
Assets
Total assets	$ 0
Liabilities:
Total liabilities		0
Level 3 | Marketable securities
Assets
Total assets		$ 0