Unaudited Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Total	Cost	Cost	Additional Paid‑in Capital	Retained Deficit	Accumulated Other Comprehensive Loss	Non‑controlling Interest
Cumulative effect of adoption of new accounting standards	$ (1,401)				$ (1,401)
Common stock issued at the beginning of the period (shares) at Sep. 30, 2018		115,016,000
Stockholders' equity, balance at the beginning of the period at Sep. 30, 2018	362,016	$ 1,145	$ (2,837)	$ 533,435	(163,871)	$ (9,017)	$ 3,161
Treasury stock, balance at the beginning of the period (in shares) at Sep. 30, 2018			1,087,000
Equity based compensation expense	4,525			4,525
Issuance of common stock (in shares)		11,000
Issuance of common stock, cost		$ 0		68
Proceeds from issuance of common stock	68
Shares withheld related to net share settlement (including tax withholdings) (shares)		21,000	18,000
Shares withheld related to net share settlement (including tax withholdings)	(15)	$ 0		(15)
Dividends paid to non-controlling interest	(600)						(600)
Net income (loss)	(16,288)				(16,730)		442
Other comprehensive loss	(901)
Common stock issued at the end of the period (shares) at Dec. 31, 2018		115,048,000
Stockholders' equity, balance at the end of the period at Dec. 31, 2018	347,404	$ 1,145	$ (2,837)	538,013	(182,002)	(9,918)	3,003
Treasury stock, balance at the end of the period (in shares) at Dec. 31, 2018			1,105,000
Other Comprehensive Income (Loss), Net of Tax	(901)
Net income attributable to non‑controlling interest	442
Cumulative effect of adoption of new accounting standards	$ (2,023)				(2,023)
Common stock issued at the beginning of the period (shares) at Sep. 30, 2019	116,008,000	116,008,000
Stockholders' equity, balance at the beginning of the period at Sep. 30, 2019	$ 365,822	$ 1,154	$ (2,837)	552,422	(174,976)	(13,004)	3,063
Treasury stock, balance at the beginning of the period (in shares) at Sep. 30, 2019	1,664,000		1,664,000
Equity based compensation expense	$ 3,680			3,680
Issuance of common stock (in shares)		120,000
Issuance of common stock, cost		$ 16		4,030
Proceeds from issuance of common stock	4,046
Shares withheld related to net share settlement (including tax withholdings) (shares)		1,525,000	419,000
Shares withheld related to net share settlement (including tax withholdings)	0	$ 0		0
Stock repurchases (shares)			0
Stock repurchases			$ 0
Dividends paid to non-controlling interest	(1,250)						(1,250)
Net income (loss)	53,506				53,145
Other comprehensive loss	$ (8,651)
Common stock issued at the end of the period (shares) at Dec. 31, 2019	117,653,000	117,653,000
Stockholders' equity, balance at the end of the period at Dec. 31, 2019	$ 415,130	$ 1,170	$ (2,837)	$ 560,132	$ (123,854)	$ (21,655)	$ 2,174
Treasury stock, balance at the end of the period (in shares) at Dec. 31, 2019	2,083,000		2,083,000
Other Comprehensive Income (Loss), Net of Tax	$ (8,651)
Stock repurchases	0
Net income attributable to non‑controlling interest	$ 361