CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN SHAREHOLDERS’ EQUITY (UNAUDITED) - 6 months ended Mar. 31, 2017 - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Income (Loss)
Beginning Balance (in shares) at Sep. 30, 2016		64,799
September 30, 2016 at Sep. 30, 2016	$ 3,230,386	$ 64,799	$ 237,542	$ 2,929,839	$ (1,794)
Increase (Decrease) in Stockholders' Equity
Net (loss) income	(19,191)			(19,191)
Other comprehensive income	1,761				1,761
Vesting of restricted stock and performance unit awards (in shares)		192
Vesting of restricted stock and performance unit awards	(466)	$ 192	(658)
Stock compensation expense (in shares)		0
Stock compensation expense		$ 0
Stock compensation expense	7,566		7,566
Common stock equity issuance (in shares)		15,525
Common stock equity issuance	180,966	$ 15,525	165,441
Ending Balance (in shares) at Mar. 31, 2017		80,516
March 31, 2017 at Mar. 31, 2017	$ 3,401,022	$ 80,516	410,855	2,909,684	$ (33)
Increase (Decrease) in Stockholders' Equity
Cumulative effect of accounting change (Note 1)			$ 964	$ (964)