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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands		3 Months Ended
		Dec. 31, 2015	Dec. 31, 2014
Net income		$ 12,058	$ 15,554
Other comprehensive income:
Unrealized gain on pension plan obligation	[1]	648	556
Tax effect of unrealized gain on pension plan		(267)	(230)
Total other comprehensive income		381	326
Total comprehensive income		$ 12,439	$ 15,880
[1] This item is included in the computation of net periodic pension cost.

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