Organization and Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Interest expense	$ 2,527	$ 5,518	$ 4,958	$ 10,973
Basic earnings per common share (in dollars per share)	$ 0.26	$ 0.10	$ 0.54	$ 0.17
Diluted earnings per common share (in dollars per share)	$ 0.20	0.10	$ 0.42	0.17
Accounting Standards Update 2020-06 | Restatement Adjustment Member
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Interest expense	$ (3,400)		$ (6,800)
Basic earnings per common share (in dollars per share)		$ 0.05		$ 0.09
Diluted earnings per common share (in dollars per share)	$ 0.01		$ 0.03