Leases - Maturities of Lease Liabilities (Details) $ in Thousands	Feb. 29, 2020 USD ($)
Leases [Abstract]
Remainder of 2020	$ 41,865
2021	69,268
2022	67,390
2023	60,364
2024	59,051
2025 and thereafter	391,864
Total undiscounted cash flows	689,802
Less: Difference between undiscounted and discounted cash flows	(110,232)
Operating lease liabilities	579,570
Finance leases amount in our Consolidated Statement of Financial Condition	378
Total amount in our Consolidated Statement of Financial Condition	$ 579,948