Unaudited Condensed Consolidated Statements of Changes in Equity - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Treasury Stock	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, 2016		104,495
Stockholders' equity, balance at the beginning of the period at Sep. 30, 2016	$ 203,935	$ 1,045	$ (1,133)	$ 381,223	$ (172,169)	$ (10,671)	$ 5,640
Treasury stock, balance at the beginning of the period (in shares) at Sep. 30, 2016			245
Equity based compensation expense	1,020			1,020
Issuance of common stock (in shares)		593
Issuance of common stock	4,151	$ 6		4,145
Stock repurchases (shares)			81
Stock repurchases	(543)		$ (543)
Dividends paid to non‑controlling interest	(3,500)						(3,500)
Net income (loss)	(8,305)				(10,401)		2,096
Other comprehensive loss	5,800					5,800
Common stock issued at the end of the period (shares) at Mar. 31, 2017		105,088
Stockholders' equity, balance at the end of the period at Mar. 31, 2017	$ 202,558	$ 1,051	$ (1,676)	386,388	(182,570)	(4,871)	4,236
Treasury stock, balance at the end of the period (in shares) at Mar. 31, 2017			326
Common stock issued at the beginning of the period (shares) at Sep. 30, 2017	105,359	105,359
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		410
Equity based compensation expense	$ 6,862			6,862
Issuance of common stock (in shares)		8,333
Issuance of common stock	137,605	$ 83		137,522
Shares withheld related to net share settlement (including tax withholdings) (shares)		1,018	513
Shares withheld related to net share settlement (including tax withholdings)	(7,368)	$ 5		(7,373)
Stock repurchases (shares)			18
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 loss	$ (793)					(793)
Common stock issued at the end of the period (shares) at Mar. 31, 2018	114,710	114,710
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		941