The percentage of the total distribution that is allocated to each partner type: General or Limited.

No definition available.

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- Definition

[Line Items] for Earnings Distribution Allocation [Table]

+ References

No definition available.

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- Definition

Amount of increase (decrease) to net income used for calculating diluted earnings per share (EPS), resulting from the assumed exercise stock options, restrictive stock units (RSUs), convertible preferred stock of an employee stock ownership plan (ESOP), and other dilutive convertible securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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- Definition

Dividends declared in the period and the contractual amount of dividends (or interest on participating income bonds) that must be paid per security.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 60B
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=121326447&loc=SL5780133-109256

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- Definition

Aggregate amount of net income allocated to limited partners.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187171-122770

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- Definition

The amount of net income or loss for the period per each limited partnership and general partnership unit in instances when basic and diluted earnings per unit are the same amount and aggregated on the face of the financial statements. Basic earnings per unit is the amount of net income or loss for the period per unit outstanding during the reporting period. Diluted earnings per unit includes the amount of net income or loss for the period available to each limited and general partnership unit outstanding during the reporting period and to each unit that would have been outstanding assuming the issuance of units for all dilutive potential units outstanding during the reporting period.

+ References

No definition available.

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- Definition

The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 16
-URI http://asc.fasb.org/extlink&oid=121326447&loc=d3e1505-109256

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Net Earnings (Loss) Per Common Unitholders' Interest (Details) - USD ($)	3 Months Ended												12 Months Ended
	Jul. 31, 2020	Apr. 30, 2020	Jan. 31, 2020	Oct. 31, 2019	Jul. 31, 2019	Apr. 30, 2019	Jan. 31, 2019	Oct. 31, 2018	Jul. 31, 2018	Apr. 30, 2018	Jan. 31, 2018	Oct. 31, 2017	Jul. 31, 2020	Jul. 31, 2019	Jul. 31, 2018
Earnings Distribution Allocation [Line Items]
Value of dilutive securities													$ 0	$ 0	$ 0
Common unitholders' interest in net earnings (loss)	$ (69,269,000)	$ (15,239,000)	$ 47,725,000	$ (44,891,000)	$ (70,327,000)	$ 20,256,000	$ 42,911,000	$ (56,445,000)	$ (213,527,000)	$ 10,752,000	$ (1,824,000)	$ (47,436,000)	$ (81,674,000)	$ (63,605,000)	$ (252,035,000)
Weighted average common units outstanding, basic and diluted													97,152,700	97,152,700	97,152,700
Basic and diluted net loss per common unit	$ (0.71)	$ (0.16)	$ 0.49	$ (0.46)	$ (0.72)	$ 0.21	$ 0.44	$ (0.58)	$ (2.20)	$ 0.11	$ (0.02)	$ (0.49)	$ (0.84)	$ (0.65)	$ (2.59)
Upper Range [Member] \| Common Unitholders [Member]
Earnings Distribution Allocation [Line Items]
Ratio of total distributions payable													51.50%
Upper Range [Member] \| General Partner [Member]
Earnings Distribution Allocation [Line Items]
Ratio of total distributions payable													48.50%
Middle Range [Member] \| Common Unitholders [Member]
Earnings Distribution Allocation [Line Items]
Ratio of total distributions payable													76.80%
Middle Range [Member] \| General Partner [Member]
Earnings Distribution Allocation [Line Items]
Ratio of total distributions payable													23.20%
Lower Range [Member] \| Common Unitholders [Member]
Earnings Distribution Allocation [Line Items]
Ratio of total distributions payable													86.90%
Lower Range [Member] \| General Partner [Member]
Earnings Distribution Allocation [Line Items]
Ratio of total distributions payable													13.10%
Minimum [Member] \| Upper Range [Member]
Earnings Distribution Allocation [Line Items]
Earnings Per Share, Basic, Distributed													$ 0.83
Minimum [Member] \| Middle Range [Member]
Earnings Distribution Allocation [Line Items]
Earnings Per Share, Basic, Distributed													0.64
Minimum [Member] \| Lower Range [Member]
Earnings Distribution Allocation [Line Items]
Earnings Per Share, Basic, Distributed													0.56
Maximum [Member] \| Middle Range [Member]
Earnings Distribution Allocation [Line Items]
Earnings Per Share, Basic, Distributed													0.82
Maximum [Member] \| Lower Range [Member]
Earnings Distribution Allocation [Line Items]
Earnings Per Share, Basic, Distributed													$ 0.63