Commitments and Contingent Liabilities - (Future MInimum Payments Under Noncancellable Leases) (Details) $ in Thousands	Feb. 29, 2020 USD ($)
Commitments and Contingencies Disclosure [Abstract]
2020	$ 30,818
2021	38,278
2022	29,061
2023	21,754
2024	15,311
2025 and thereafter	28,550
Total future minimum lease payments	163,772
Less: Interest	12,993
Present value of lease liabilities	150,779
Variable lease costs	13,400
Short-term lease costs	$ 2,800
Weighted-average remaining lease term (in years)	3 years 4 months 24 days
Weighted-average discount rate	3.10%

Lessee, Operating Lease, Liability, Short-term Lease Payments, Due

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Lessee, Operating Lease, Liability, Variable Lease Payments, Due

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Discount rate used by lessee to determine present value of operating lease payments.

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Amount of lessee's undiscounted obligation for lease payments for operating lease.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due after fifth fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fifth fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fourth fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due in third fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due in second fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease having an initial or remaining lease term in excess of one year due in remainder of fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.

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Present value of lessee's discounted obligation for lease payments from operating lease.

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Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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