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
Common stock issued at the beginning of the period (shares) at Sep. 30, 2017		105,359,000
Stockholders' equity, balance at the beginning of the period at Sep. 30, 2017	$ 216,575	$ 1,054	$ (2,607)	$ 388,986	$ (170,006)	$ (5,989)	$ 5,137
Treasury stock, balance at the beginning of the period (in shares) at Sep. 30, 2017			410,000
Equity based compensation expense	6,862
Issuance of common stock (in shares)		8,333,000
Issuance of common stock, cost		$ 83		137,522
Proceeds from issuance of common stock	137,605
Shares withheld related to net share settlement (including tax withholdings) (shares)		1,018,000	513,000
Shares withheld related to net share settlement (including tax withholdings)	(7,368)	$ 5		(7,373)
Stock repurchases (shares)			18,000
Stock repurchases	(230)		$ (230)
Dividends paid to non-controlling interest	(1,550)						(1,550)
Net income (loss)	9,975				8,790		1,185
Other comprehensive income	(793)
Common stock issued at the end of the period (shares) at Mar. 31, 2018		114,710,000
Stockholders' equity, balance at the end of the period at Mar. 31, 2018	361,076	$ 1,142	$ (2,837)	525,997	(161,216)	(6,782)	4,772
Treasury stock, balance at the end of the period (in shares) at Mar. 31, 2018			941,000
Other Comprehensive Income (Loss), Net of Tax	(793)
Stock repurchases	(230)
Net income attributable to non‑controlling interest	1,185
Common stock issued at the beginning of the period (shares) at Dec. 31, 2017		113,692,000
Stockholders' equity, balance at the beginning of the period at Dec. 31, 2017	352,722	$ 1,137	$ (2,837)	529,120	(173,719)	(6,324)	5,345
Treasury stock, balance at the beginning of the period (in shares) at Dec. 31, 2017			428,000
Equity based compensation expense	4,250
Issuance of common stock (in shares)		0
Issuance of common stock, cost		$ 0		0
Proceeds from issuance of common stock	0
Shares withheld related to net share settlement (including tax withholdings) (shares)		1,018,000	513,000
Shares withheld related to net share settlement (including tax withholdings)	(7,368)	$ 5		(7,373)
Stock repurchases (shares)			0
Stock repurchases	0		$ 0
Dividends paid to non-controlling interest	(1,050)						(1,050)
Net income (loss)	12,980				12,503		477
Other comprehensive income	(458)
Common stock issued at the end of the period (shares) at Mar. 31, 2018		114,710,000
Stockholders' equity, balance at the end of the period at Mar. 31, 2018	361,076	$ 1,142	$ (2,837)	525,997	(161,216)	(6,782)	4,772
Treasury stock, balance at the end of the period (in shares) at Mar. 31, 2018			941,000
Other Comprehensive Income (Loss), Net of Tax	(458)
Net income attributable to non‑controlling interest	477
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	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		1,087,000
Equity based compensation expense	$ 9,270
Issuance of common stock (in shares)		62,000
Issuance of common stock, cost				341
Proceeds from issuance of common stock	341
Shares withheld related to net share settlement (including tax withholdings) (shares)		613,000	431,000
Shares withheld related to net share settlement (including tax withholdings)	(936)	$ 6		(942)
Dividends paid to non-controlling interest	(600)						(600)
Net income (loss)	(14,715)				(15,346)
Other comprehensive income	$ 1,402
Common stock issued at the end of the period (shares) at Mar. 31, 2019	115,691,000	115,691,000
Stockholders' equity, balance at the end of the period at Mar. 31, 2019	$ 355,377	$ 1,151	$ (2,837)	542,104	(180,618)	(7,615)	3,192
Treasury stock, balance at the end of the period (in shares) at Mar. 31, 2019	1,518,000		1,518,000
Other Comprehensive Income (Loss), Net of Tax	$ 1,402
Stock repurchases	0
Net income attributable to non‑controlling interest	631
Common stock issued at the beginning of the period (shares) at Dec. 31, 2018		115,048,000
Stockholders' equity, balance at the beginning 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 beginning of the period (in shares) at Dec. 31, 2018			1,105,000
Equity based compensation expense	4,745
Issuance of common stock (in shares)		51,000
Issuance of common stock, cost				273
Proceeds from issuance of common stock	273
Shares withheld related to net share settlement (including tax withholdings) (shares)		592,000	413,000
Shares withheld related to net share settlement (including tax withholdings)	(921)	$ 6		(927)
Stock repurchases (shares)			0
Stock repurchases			$ 0
Dividends paid to non-controlling interest	0						0
Net income (loss)	1,573				1,384
Other comprehensive income	$ 2,303
Common stock issued at the end of the period (shares) at Mar. 31, 2019	115,691,000	115,691,000
Stockholders' equity, balance at the end of the period at Mar. 31, 2019	$ 355,377	$ 1,151	$ (2,837)	$ 542,104	$ (180,618)	$ (7,615)	$ 3,192
Treasury stock, balance at the end of the period (in shares) at Mar. 31, 2019	1,518,000		1,518,000
Other Comprehensive Income (Loss), Net of Tax	$ 2,303
Stock repurchases	0
Net income attributable to non‑controlling interest	$ 189