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Earnings per Share and Stock Plans - Narrative (Details) $ / shares in Units, $ in Thousands		1 Months Ended		3 Months Ended	12 Months Ended
	Feb. 03, 2026 USD ($) $ / shares shares	Jul. 31, 2024 shares	Jun. 30, 2019 shares	Mar. 31, 2026 USD ($) $ / shares shares	Mar. 31, 2026 USD ($) $ / shares shares	Mar. 31, 2025 USD ($) $ / shares shares	Mar. 31, 2024 USD ($) $ / shares shares	Mar. 31, 2023 USD ($) $ / shares shares	May 11, 2026 USD ($)	Mar. 23, 2026 $ / shares	Jan. 29, 2026 shares	Jan. 28, 2026 shares	Mar. 26, 2019 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment arrangement, amount \| $				$ 3,379	$ 3,379
Dividends declared per common share (in dollars per share)				$ 0.07	$ 0.28	$ 0.28	$ 0.28
Annual dividend rate (in dollars per share)										$ 0.28
Coupon rate	7.00%
Preferred dividends \| $					$ 8,867
Dividends threshold (in dollars per share)	$ 0.07
Capital stock, authorized (in share) \| shares											101,000,000	51,000,000
Common stock, authorized (in shares) \| shares				100,000,000	100,000,000	100,000,000					100,000,000	50,000,000
Stock repurchase program, authorized amount \| $													$ 20,000
Additional common shares repurchased (in shares) \| shares						293,000		31,000
Stock repurchased during period, value \| $						$ 9,945		$ 1,010
CD&R
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Investment agreement, minimum percent ownership of originally issued preferred shares											25.00%
CD&R
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent ownership after transaction	43.00%
Series A Preferred Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issued (in shares) \| shares	800,000
Preferred stock, par value (in dollars per share)	$ 1.00
Price per share (in dollars per share)	$ 1,000
Aggregate purchase price \| $	$ 800,000
Coupon rate	7.00%
Conversion price (in dollars per share)	$ 37.68
Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Dividend distribution declared per preferred share purchase right \| $									$ 2,012
ESOP Debt Guarantee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average exercise price (in dollars per share)				$ 31.82	$ 31.82	$ 36.38	$ 35.37	$ 34.54
2016 LTIP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment award, number of additional shares authorized (in shares) \| shares		2,800,000	2,500,000
Long Term Incentive Plan \| ESOP Debt Guarantee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grants (in shares) \| shares				920,241	920,241
Period options generally become exercisable					3 years
Vesting percentage					33.00%
Share based compensation, exercise price, percent of fair market value				1	1
Closing stock price (in dollars per share)				$ 14.69	$ 14.69
Total intrinsic value of stock options exercised \| $					$ 5	$ 120	$ 870
Grant date fair value of options that vested (in dollars per share)					$ 11.94	$ 11.55	$ 11.00
Unrecognized compensation cost related to non-vested stock options \| $				$ 2,705	$ 2,705
Weighted average period of recognition for unrecognized compensation cost					1 year 8 months 12 days
Weighted-average fair value of options (in dollars per share)					$ 7.63	$ 17.13	$ 12.97
Long Term Incentive Plan \| ESOP Debt Guarantee \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average exercise price (in dollars per share)				$ 17.15	17.15
Long Term Incentive Plan \| ESOP Debt Guarantee \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average exercise price (in dollars per share)				$ 19.06	$ 19.06
Long Term Incentive Plan \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average period of recognition for unrecognized compensation cost					1 year 7 months 6 days
Total unrecognized compensation cost related to unvested restricted stock units \| $				$ 6,133	$ 6,133
Fair value of restricted stock units that vested during the period \| $					$ 4,143	$ 4,922
Long Term Incentive Plan \| Restricted Stock \| Share-Based Payment Arrangement, Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage					33.33%
Long Term Incentive Plan \| Restricted Stock \| Share-Based Payment Arrangement, Tranche Three
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage					33.33%
Long Term Incentive Plan \| Restricted Stock \| Share-Based Payment Arrangement, Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting percentage					33.33%
Long Term Incentive Plan \| Directors Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense \| $					$ 1,024	$ 1,057	$ 1,174
Shares of stock granted under the LTIP to non-executive directors (in shares) \| shares					68,424	28,112	28,512
Weighted average fair value grant price (in dollars per share)				$ 14.97	$ 14.97	$ 37.61	$ 41.17
Long Term Incentive Plan \| Cost of Goods Sold, Selling, and General and Administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock based compensation expense \| $					$ 9,569	$ 6,256	$ 12,039
Stock Incentive Plan of Magnetek \| ESOP Debt Guarantee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grants (in shares) \| shares				164,461	164,461
ESOP Debt Guarantee
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares not included in the computation of diluted loss per share because they were antidilutive (in shares) \| shares					2,592,000	1,756,000
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares not included in the computation of diluted loss per share because they were antidilutive (in shares) \| shares					2,592,000	1,756,000
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares not included in the computation of diluted loss per share because they were antidilutive (in shares) \| shares					2,592,000	1,756,000
Convertible Preferred Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares not included in the computation of diluted loss per share because they were antidilutive (in shares) \| shares					21,467,000