Summary of Significant Accounting Policies - Schedule of Summarized Financial Information of Equity Method Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
INVESTMENT IN UNCONSOLIDATED INVESTEES:
Total assets	$ 4,508,302	$ 3,938,485
Total liabilities	3,278,941	2,802,507
Total equity	1,229,361	1,135,978	$ 995,388	$ 806,842
Investments in Unconsolidated Investees
INVESTMENT IN UNCONSOLIDATED INVESTEES:
Total assets	1,172,600	837,200
Total liabilities	687,800	473,200
Total equity	$ 484,800	$ 364,000