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Guarantor and Non-Guarantor Financial Information - Cash Flows (Details) - USD ($) $ in Thousands | 6 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2017
CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS |  |
Net cash provided by (used in) operating activities | $ 196,994 | $ 150,278
INVESTING ACTIVITIES: |  |
Capital expenditures | (191,202) | (175,303)
Purchase of short-term investments | (36,784) | (37,899)
Payment for acquisition of business, net of cash acquired | (47,886) |
Proceeds from sale of short-term investments | 32,020 | 34,000
Proceeds from asset sales | 17,826 | 13,459
Net cash used in investing activities | (226,026) | (165,743)
FINANCING ACTIVITIES: |  |
Dividends paid | (153,433) | (152,617)
Proceeds from stock option exercises | 1,645 | 10,372
Payments for employee taxes on net settlement of equity awards | (5,791) | (6,105)
Net cash used in financing activities | (157,579) | (148,350)
Net decrease in cash and cash equivalents | (186,611) | (163,815)
Cash and cash equivalents, beginning of period | 521,375 | 905,561
Cash and cash equivalents, end of period | 334,764 | 741,746
Guarantor/Parent | Reportable Legal Entities |  |
CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS |  |
Net cash provided by (used in) operating activities | 3,946 | (5,993)
INVESTING ACTIVITIES: |  |
Capital expenditures | (4,661) | (1,343)
Payment for acquisition of business, net of cash acquired | (47,886) |
Intercompany transfers | 52,547 | 1,343
FINANCING ACTIVITIES: |  |
Intercompany transfers | 153,433 | 152,617
Dividends paid | (153,433) | (152,617)
Proceeds from stock option exercises | 1,645 | 10,372
Payments for employee taxes on net settlement of equity awards | (5,791) | (6,105)
Net cash used in financing activities | (4,146) | 4,267
Net decrease in cash and cash equivalents | (200) | (1,726)
Cash and cash equivalents, beginning of period | (587) | (955)
Cash and cash equivalents, end of period | (787) | (2,681)
Issuer Subsidiary | Reportable Legal Entities |  |
CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS |  |
Net cash provided by (used in) operating activities | 192,093 | 148,481
INVESTING ACTIVITIES: |  |
Capital expenditures | (181,218) | (172,338)
Purchase of short-term investments | (36,784) | (37,899)
Proceeds from sale of short-term investments | 32,020 | 34,000
Intercompany transfers | (52,547) | (1,343)
Proceeds from asset sales | 16,308 | 12,908
Net cash used in investing activities | (222,221) | (164,672)
FINANCING ACTIVITIES: |  |
Intercompany transfers | (153,433) | (152,617)
Net cash used in financing activities | (153,433) | (152,617)
Net decrease in cash and cash equivalents | (183,561) | (168,808)
Cash and cash equivalents, beginning of period | 508,091 | 899,028
Cash and cash equivalents, end of period | 324,530 | 730,220
Non-Guarantor Subsidiaries | Reportable Legal Entities |  |
CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS |  |
Net cash provided by (used in) operating activities | 955 | 7,790
INVESTING ACTIVITIES: |  |
Capital expenditures | (5,323) | (1,622)
Proceeds from asset sales | 1,518 | 551
Net cash used in investing activities | (3,805) | (1,071)
FINANCING ACTIVITIES: |  |
Net decrease in cash and cash equivalents | (2,850) | 6,719
Cash and cash equivalents, beginning of period | 13,871 | 7,488
Cash and cash equivalents, end of period | $ 11,021 | $ 14,207

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