CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (UNAUDITED) (PARENTHETICALS) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||
---|---|---|---|---|
Mar. 31, 2017 |
Mar. 31, 2016 |
Mar. 31, 2017 |
Mar. 31, 2016 |
|
Other Comprehensive Income Loss Tax Portion Attributable To Parent Abstract | ||||
Unrealized holding gains (losses) on available-for-sale securities, tax | $ 879 | $ (505) | $ 403 | $ (947) |
Interest Rate Contract [Member] | ||||
Schedule of Other Comprehensive Income (Loss), Tax, Cash Flow Hedges [Line Items] | ||||
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax | 2,432 | (30,819) | 54,861 | (28,070) |
Commodity Contract [Member] | ||||
Schedule of Other Comprehensive Income (Loss), Tax, Cash Flow Hedges [Line Items] | ||||
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax | $ 0 | $ 140 | $ 3,183 | $ 1,645 |