Financial Instruments and Fair Value Measurements - Effect of derivative instruments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Gain (loss) of derivative instruments
Amount of gain (loss) recognized in other comprehensive income (loss) on derivatives	$ 800	$ (94)	$ 3,421	$ 243
Amount expected to be reclassified during next twelve months			$ 400
Period over which losses are expected to be reclassified			12 months
Interest expense
Gain (loss) of derivative instruments
Amount of (gain) loss reclassified into consolidated statements of income	(49)	35	$ 52	35
Equity in loss from unconsolidated joint ventures
Gain (loss) of derivative instruments
Amount of (gain) loss reclassified into consolidated statements of income	$ 38	$ 47	$ 84	$ 78