CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS)
Net (loss) income	$ (8,008)	$ (21,799)	$ 480,219	$ (105,680)
Other comprehensive income (loss), net of income taxes:
Unrealized appreciation (depreciation) on securities, net of income taxes of $5,593 and $1,970 at June 30, 2018 and ($4,352) and ($3,150) at June 30, 2017	13,826	(6,899)	5,657	(4,994)
Minimum pension liability adjustments, net of income taxes of $121 and $397 at June 30, 2018 and $209 and $627 at June 30, 2017	337	365	985	1,097
Other comprehensive income (loss)	14,163	(6,534)	6,642	(3,897)
Comprehensive income (loss)	$ 6,155	$ (28,333)	$ 486,861	$ (109,577)