Unaudited Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Total	Common Stock	Treasury Stock	Additional Paid-in Capital	Retained Deficit	Accumulated Other Comprehensive (Loss) Income	Non-controlling Interest
Common stock issued at the beginning of the period (shares) at Sep. 30, 2020		119,486,000
Stockholders' equity, balance at the beginning of the period at Sep. 30, 2020	$ 482,063	$ 1,189	$ (2,837)	$ 564,928	$ (62,664)	$ (20,472)	$ 1,919
Treasury stock, balance at the beginning of the period (in shares) at Sep. 30, 2020			2,195,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity based compensation expense	3,019			3,019
Issuance of common stock (in shares)		1,264,000	1,000
Stock Issued During Period, Value, New Issues	14,263	$ 13		14,250
Issuance of common stock, net	(250)						(250)
Net income	6,477				6,433		44
Dividends paid to non-controlling interest	(3,611)					(3,611)
Common stock issued at the end of the period (shares) at Dec. 31, 2020		120,750,000
Stockholders' equity, balance at the end of the period at Dec. 31, 2020	501,961	$ 1,202	$ (2,837)	582,197	(56,231)	(24,083)	1,713
Treasury stock, balance at the end of the period (in shares) at Dec. 31, 2020			2,196,000
Common stock issued at the beginning of the period (shares) at Sep. 30, 2020		119,486,000
Stockholders' equity, balance at the beginning of the period at Sep. 30, 2020	482,063	$ 1,189	$ (2,837)	564,928	(62,664)	(20,472)	1,919
Treasury stock, balance at the beginning of the period (in shares) at Sep. 30, 2020			2,195,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	11,559
Dividends paid to non-controlling interest	32,481
Common stock issued at the end of the period (shares) at Mar. 31, 2021		121,442,000
Stockholders' equity, balance at the end of the period at Mar. 31, 2021	524,885	$ 1,215	$ (2,837)	564,034	(51,195)	12,009	1,659
Treasury stock, balance at the end of the period (in shares) at Mar. 31, 2021			1,664,000
Common stock issued at the beginning of the period (shares) at Dec. 31, 2020		120,750,000
Stockholders' equity, balance at the beginning of the period at Dec. 31, 2020	501,961	$ 1,202	$ (2,837)	582,197	(56,231)	(24,083)	1,713
Treasury stock, balance at the beginning of the period (in shares) at Dec. 31, 2020			2,196,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity based compensation expense	3,214			3,214
Issuance of common stock (in shares)		692,000	(532,000)
Stock Issued During Period, Value, New Issues	(21,364)	$ 13		(21,377)
Issuance of common stock, net	(100)						(100)
Net income	5,082				5,036		46
Dividends paid to non-controlling interest	36,092					36,092
Common stock issued at the end of the period (shares) at Mar. 31, 2021		121,442,000
Stockholders' equity, balance at the end of the period at Mar. 31, 2021	$ 524,885	$ 1,215	$ (2,837)	564,034	(51,195)	12,009	1,659
Treasury stock, balance at the end of the period (in shares) at Mar. 31, 2021			1,664,000
Common stock issued at the beginning of the period (shares) at Sep. 30, 2021	122,173,000	122,173,000
Stockholders' equity, balance at the beginning of the period at Sep. 30, 2021	$ 582,219	$ 1,223	$ (2,837)	582,052	(11,182)	11,415	1,548
Treasury stock, balance at the beginning of the period (in shares) at Sep. 30, 2021	1,664,000		1,664,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity based compensation expense	$ 5,203			5,203
Issuance of common stock (in shares)		199,000	0
Stock Issued During Period, Value, New Issues	824	$ 2		822
Issuance of common stock, net	(100)						(100)
Net income	6,088				5,987		101
Dividends paid to non-controlling interest	8,359					8,359
Common stock issued at the end of the period (shares) at Dec. 31, 2021		122,372,000
Stockholders' equity, balance at the end of the period at Dec. 31, 2021	$ 602,593	$ 1,225	$ (2,837)	588,077	(5,195)	19,774	1,549
Treasury stock, balance at the end of the period (in shares) at Dec. 31, 2021			1,664,000
Common stock issued at the beginning of the period (shares) at Sep. 30, 2021	122,173,000	122,173,000
Stockholders' equity, balance at the beginning of the period at Sep. 30, 2021	$ 582,219	$ 1,223	$ (2,837)	582,052	(11,182)	11,415	1,548
Treasury stock, balance at the beginning of the period (in shares) at Sep. 30, 2021	1,664,000		1,664,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	$ 13,462
Dividends paid to non-controlling interest	$ 32,431
Common stock issued at the end of the period (shares) at Mar. 31, 2022	122,766,000	122,766,000
Stockholders' equity, balance at the end of the period at Mar. 31, 2022	$ 638,071	$ 1,229	$ (2,837)	592,105	2,135	43,846	1,593
Treasury stock, balance at the end of the period (in shares) at Mar. 31, 2022	1,664,000		1,664,000
Common stock issued at the beginning of the period (shares) at Dec. 31, 2021		122,372,000
Stockholders' equity, balance at the beginning of the period at Dec. 31, 2021	$ 602,593	$ 1,225	$ (2,837)	588,077	(5,195)	19,774	1,549
Treasury stock, balance at the beginning of the period (in shares) at Dec. 31, 2021			1,664,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Equity based compensation expense	5,386			5,386
Issuance of common stock (in shares)		394,000
Stock Issued During Period, Value, New Issues	(1,354)	$ 4		(1,358)
Issuance of common stock, net							0
Net income	7,374				7,330		44
Dividends paid to non-controlling interest	$ 24,072					24,072
Common stock issued at the end of the period (shares) at Mar. 31, 2022	122,766,000	122,766,000
Stockholders' equity, balance at the end of the period at Mar. 31, 2022	$ 638,071	$ 1,229	$ (2,837)	$ 592,105	$ 2,135	$ 43,846	$ 1,593
Treasury stock, balance at the end of the period (in shares) at Mar. 31, 2022	1,664,000		1,664,000