Leasing Arrangements - Schedule of Condensed Income Statement Of Operation (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Condensed Income Statements, Captions [Line Items]
Right-of-use assets, net obtained in exchange for operating lease liabilities	$ 2,803	$ 612	$ 3,021	$ 692
Lease costs within cost of sales
Condensed Income Statements, Captions [Line Items]
Operating lease cost	228	198	453	356
Lease costs within operating expenses
Condensed Income Statements, Captions [Line Items]
Operating lease cost	$ 358	$ 387	$ 746	$ 761