Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2023	Feb. 28, 2022	Feb. 28, 2021
Disaggregation Of Revenue [Line Items]
Net sales	$ 534,014	$ 635,920	$ 563,605
Corporate, Non-Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales	399	519	603
Automotive [Member] | Operating Segments [Member]
Disaggregation Of Revenue [Line Items]
Net sales	174,811	200,594	163,903
Automotive [Member] | Operating Segments [Member] | OEM Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	72,979	65,017	46,170
Automotive [Member] | Operating Segments [Member] | Aftermarket Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	101,832	135,577	117,733
Consumer Electronics [Member] | Operating Segments [Member]
Disaggregation Of Revenue [Line Items]
Net sales	357,758	433,925	398,263
Consumer Electronics [Member] | Operating Segments [Member] | Premium Audio Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	274,544	343,991	299,908
Consumer Electronics [Member] | Operating Segments [Member] | Other Consumer Electronic Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	83,214	89,934	98,355
Biometrics [Member] | Operating Segments [Member]
Disaggregation Of Revenue [Line Items]
Net sales	1,046	882	836
Biometrics [Member] | Operating Segments [Member] | Biometric Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	$ 1,046	$ 882	$ 836