Investments in Non-Consolidated Affiliates (Unaudited) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Noncontrolling Interest [Line Items]
Assets, Current			$ 285,177	$ 272,736
NET EARNINGS	$ 42,290	$ 137,505
Liabilities, Current			277,632	301,988
Liabilities			$ 2,147,975	$ 2,146,248
REVENUES	$ 376,088	$ 389,277