XML 41 R29.htm IDEA: XBRL DOCUMENT
v3.21.1

Investments (Tables) | 6 Months Ended
--- | ---
Mar. 31, 2021
Investments, Debt and Equity Securities [Abstract] |
Non-Current Investments | Non-current investments consisted of the following:
| March 31, 2021 |  | September 30, 2020
Equity and fixed income mutual funds | $ | 25,455 |  |  | $ | 24,610 |
Life insurance policies | 4,626 |  |  | 4,621 |
Other (primarily cost-method) investments | 18,967 |  |  | 34,019 |
| $ | 49,048 |  |  | $ | 63,250 |

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets. + References No definition available. + Details
Name: | us-gaap_MarketableSecuritiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration