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	1,634			1,634
Issuance of common stock (in shares)		864
Issuance of common stock	5,521	$ 9		5,512
Stock repurchases (shares)			124
Stock repurchases	(1,076)		$ (1,076)
Dividends paid to non‑controlling interest	(4,750)						(4,750)
Net income (loss)	(6,550)				(8,898)		2,348
Other comprehensive income	2,773					2,773
Common stock issued at the end of the period (shares) at Jun. 30, 2017		105,359
Stockholders' equity, balance at the end of the period at Jun. 30, 2017	$ 201,487	$ 1,054	$ (2,209)	388,369	(181,067)	(7,898)	3,238
Treasury stock, balance at the end of the period (in shares) at Jun. 30, 2017			369
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	$ 11,257			11,257
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)		1,079	532
Shares withheld related to net share settlement (including tax withholdings)	(7,767)	$ 6		(7,773)
Stock repurchases (shares)			18
Stock repurchases	(230)		$ (230)
Dividends paid to non‑controlling interest	(2,425)						(2,425)
Net income (loss)	11,012				9,585		1,427
Other comprehensive income	$ (2,811)					(2,811)
Common stock issued at the end of the period (shares) at Jun. 30, 2018	114,771	114,771
Stockholders' equity, balance at the end of the period at Jun. 30, 2018	$ 363,216	$ 1,143	$ (2,837)	$ 529,992	$ (160,421)	$ (8,800)	$ 4,139
Treasury stock, balance at the end of the period (in shares) at Jun. 30, 2018	960		960