XML 53 R42.htm IDEA: XBRL DOCUMENT v3.21.2
Summary of Significant Accounting Policies - Accounts Payable and Accrued Expenses (Details) - USD ($)
$ in Thousands
Sep. 30, 2021
Dec. 31, 2020
Accounting Policies [Abstract]    
Accounts payable, trade $ 956,873 $ 798,023
Accrued compensation and related expenses 497,451 378,002
Other accrued expenses 306,465 333,769
Accounts payable and accrued expenses $ 1,760,789 $ 1,509,794