Segment Reporting Segment Reporting (Reconciliation of Consolidated EBITDA to Consolidated Net Earnings) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jan. 31, 2016
Jan. 31, 2015
Jan. 31, 2016
Jan. 31, 2015
Segment Reporting, Other Significant Reconciling Item [Line Items]        
Net Income (Loss) Attributable to Parent $ 57,127 $ 85,458 $ (22,666) $ 52,583
Income tax benefit 1,030 1,041 186 531
Interest Expense 34,730 24,375 68,518 48,287
Depreciation and amortization expense 37,367 23,943 74,346 47,252
EBITDA 130,254 134,817 120,384 148,653
Employee Stock Ownership Plan (ESOP), Compensation Expense 3,141 3,788 8,397 8,162
Non-cash stock-based compensation charge (2,456) 318 5,666 16,430
Goodwill impairment 0 0 29,316 0
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property 2,524 1,414 17,441 2,375
Other Nonoperating Income (Expense) 298 178 420 627
Change in fair value of contingent consideration 0 (4,500) (100) (6,300)
Severance Costs 0 0 856 0
Legal Fees 0 0 0 723
Acquisition Costs, Period Cost 70 0 85 0
Net earnings (loss) 57,755 86,371 (22,811) 53,202
Adjusted EBITDA 138,329 136,928 187,228 171,289
Midstream - Crude Oil Logistics [Member]        
Segment Reporting, Other Significant Reconciling Item [Line Items]        
Goodwill impairment     0  
Business Combination, Separately Recognized Transactions, Expenses and Losses Recognized 3,870 0 4,908 0
Adjusted EBITDA 28,721 0 53,524 0
Noncontrolling Interest [Member]        
Segment Reporting, Other Significant Reconciling Item [Line Items]        
Net earnings (loss) 628 913 (145) 619
Ferrellgas, L.P. [Member]        
Segment Reporting, Other Significant Reconciling Item [Line Items]        
Net Income (Loss) Attributable to Parent 62,187 90,409 (14,349) 61,272
Income tax benefit 1,025 1,037 181 526
Interest Expense 30,701 20,341 (60,459) (40,219)
Depreciation and amortization expense 37,367 23,943 74,346 47,252
EBITDA 131,280 135,730 120,637 149,269
Employee Stock Ownership Plan (ESOP), Compensation Expense 3,141 3,788 8,397 8,162
Non-cash stock-based compensation charge (2,456) 318 5,666 16,430
Goodwill impairment 0 0 29,316 0
Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property 2,524 1,414 17,441 2,375
Other Nonoperating Income (Expense) 298 178 420 627
Change in fair value of contingent consideration 0 (4,500) (100) (6,300)
Severance Costs 0 0 856 0
Legal Fees 0 0 0 723
Acquisition Costs, Period Cost 70 0 85 0
Net earnings (loss) 62,187 90,409 (14,349) 61,272
Adjusted EBITDA 138,727 136,928 187,626 171,286
Ferrellgas, L.P. [Member] | Midstream - Crude Oil Logistics [Member]        
Segment Reporting, Other Significant Reconciling Item [Line Items]        
Goodwill impairment     0  
Business Combination, Separately Recognized Transactions, Expenses and Losses Recognized 3,870 0 4,908 0
Adjusted EBITDA $ 28,721 $ 0 53,524 $ 0
General Partner [Member]        
Segment Reporting, Other Significant Reconciling Item [Line Items]        
Net earnings (loss)     (227)  
General Partner [Member] | Ferrellgas, L.P. [Member]        
Segment Reporting, Other Significant Reconciling Item [Line Items]        
Net earnings (loss)     $ (145)