Leases - Summary of Lease Assets and Liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020
Summary of lease asset and liabilities
Lease right-of-use assets	$ 104,336	$ 94,727
Lease liabilities:
Other current liabilities	$ 17,499	$ 16,586
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Other Liabilities, Current	Other Liabilities, Current
Long-term lease liabilities	$ 88,923	$ 80,576
Total lease liabilities	$ 106,422	$ 97,162