Financial Instruments and Fair Value Measurements (Tables)

12 Months Ended

Sep. 30, 2017

Financial Instruments and Fair Value Measurments

Financial Assets that are Measured at Fair Value on a Recurring Basis

	At September 30, 2017								At September 30, 2016
	Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3		Total
Financial assets:
Cash	$	79,822	$	-	$	-	$	79,822	$	80,959	$	-	$	-	$	80,959
Investments in money market funds		-		-		-		-		48		-		-		48
Investments in reverse repurchase agreements		1		-		-		1		83		-		-		83
Investments in term deposits with foreign banks		7,729		-		-		7,729		7,136		-		-		7,136
Equity securities		16,600		-		-		16,600		12,491		-		-		12,491
Total financial assets	$	104,152	$	-	$	-	$	104,152	$	100,717	$	-	$	-	$	100,717

Estimated Fair Values of Financial Instruments

		At September 30, 2017				At September 30, 2016
	Fair Value Hierarchy Level	Estimated Fair Value		Carrying Cost		Estimated Fair Value		Carrying Cost
Assets:
Notes receivable from municipalities	2	$	15,848	$	14,507	$	17,501	$	15,849
Investments in short-term time deposits	2		8,227		8,223		4,882		4,918
Liabilities:
Long-term debt, excluding current portion	2	$	(592,317)	$	(582,080)	$	(617,857)	$	(579,244)