XML 64 R52.htm IDEA: XBRL DOCUMENT v3.6.0.2
Financial Instruments and Fair Value Measurements (Estimated Fair Values of Financial Instruments) (Details) - USD ($)
$ in Thousands
Dec. 31, 2016
Sep. 30, 2016
Notes receivable from municipalities, Carrying Cost $ 15,229 $ 15,849
Investments in short-term time deposits, Carrying Cost 4,084 4,918
Short-term borrowings, Carrying Cost (150,000) (150,000)
Long-term debt, excluding current portion, Carrying Cost (571,852) (579,244)
Fair Value, Inputs, Level 2 [Member]    
Notes receivable from municipalities, Estimated Fair Value 16,201 17,501
Investments in short-term time deposits, Estimated Fair Value 4,065 4,882
Short-term borrowings, Estimated Fair Value (150,000) (150,000)
Long-term debt, excluding current portion, Estimated Fair Value $ (590,556) $ (617,857)