Leases - Maturity (Details) $ in Thousands	Jan. 31, 2020 USD ($)
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2020	$ 23,306
2021	36,625
2022	27,184
2023	21,067
2024	18,142
Thereafter	33,705
Total lease payments, Operating Leases	160,029
Less: Imputed interest	42,220
Present value of lease liabilities, Operating Leases	117,809
Finance Lease, Liability, Payment, Due [Abstract]
2020	2,194
2021	3,806
2022	2,760
2023	2,713
2024	2,633
Thereafter	6,073
Total lease payments, Finance Leases	20,179
Less: Imputed interest	4,506
Present value of lease liabilities, Finance Leases	15,673
Operating And Finance Lease Liabilities Payments Due [Abstract]
2020	25,500
2021	40,431
2022	29,944
2023	23,780
2024	20,775
Thereafter	39,778
Total lease payments	180,208
Less: Imputed interest	46,726
Present value of lease liabilities	133,482
Ferrellgas, L.P. [Member]
Lessee, Operating Lease, Liability, Payment, Due [Abstract]
2020	23,306
2021	36,625
2022	27,184
2023	21,067
2024	18,142
Thereafter	33,705
Total lease payments, Operating Leases	160,029
Less: Imputed interest	42,220
Present value of lease liabilities, Operating Leases	117,809
Finance Lease, Liability, Payment, Due [Abstract]
2020	2,194
2021	3,806
2022	2,760
2023	2,713
2024	2,633
Thereafter	6,073
Total lease payments, Finance Leases	20,179
Less: Imputed interest	4,506
Present value of lease liabilities, Finance Leases	15,673
Operating And Finance Lease Liabilities Payments Due [Abstract]
2020	25,500
2021	40,431
2022	29,944
2023	23,780
2024	20,775
Thereafter	39,778
Total lease payments	180,208
Less: Imputed interest	46,726
Present value of lease liabilities	$ 133,482

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

No definition available.

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- Definition

Amount of lessee's undiscounted obligation for lease payments.

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

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

+ References

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- Definition

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

+ References

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- Definition

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

+ References

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- Definition

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

+ References

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

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

+ References

No definition available.

+ Details

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- Definition

n/a

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No definition available.

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Balance Type:	na
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918701-209980

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977

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- Definition

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

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- Definition

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

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- Definition

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

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- Definition

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

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- Definition

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

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- Definition

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

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- Definition

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

+ References

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- Definition

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

+ References

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- Definition

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

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+ Details

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Balance Type:	credit
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- Definition

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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- Definition

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

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- Definition

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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- Definition

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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- Definition

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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- Definition

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

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Balance Type:	na
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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977

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