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Derivative Instruments
 12 Months Ended
Mar. 31, 2026
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Derivative Instruments Derivative Instruments
The Company uses derivative instruments to manage selected foreign currency and interest rate exposures. The Company does not use derivative instruments for speculative trading purposes. All derivative instruments must be recorded on the balance sheet at fair value. For derivatives designated as cash flow hedges, the effective portion of changes in the fair value of the derivative is recorded as accumulated other comprehensive gain (loss), or “AOCL,” and is reclassified to earnings when the underlying transaction has an impact on earnings. The ineffective portion of changes in the fair value of the foreign currency forward agreements is reported in foreign currency exchange loss (gain) in the Company’s consolidated statement of operations. The ineffective portion of changes in the fair value of the interest rate swap agreements is reported in interest expense. For derivatives not designated as cash flow hedges, all changes in market value are recorded as a foreign currency exchange (gain) loss in the Company’s consolidated statements of operations. The cash flow effects of derivatives are reported within net cash provided by operating activities.

The Company is exposed to credit losses in the event of non-performance by the counterparties on its financial instruments. The counterparties have investment grade credit ratings. The Company anticipates that these counterparties will be able to fully satisfy their obligations under the contracts. The Company has derivative contracts with seven counterparties as of March 31, 2026.

The Company's agreements with its counterparties contain provisions pursuant to which the Company could be declared in default of its derivative obligations. As of March 31, 2026, the Company had not posted any collateral related to these agreements. If the Company had breached any of these provisions as of March 31, 2026, it could have been required to settle its obligations under these agreements at amounts which approximate the March 31, 2026 fair values reflected in the table below. During the year ended March 31, 2026, the Company was not in default of any of its derivative obligations.

As of March 31, 2026, and 2025, the Company had no derivatives designated as net investments or fair value hedges in accordance with ASC Topic 815, “Derivatives and Hedging.”

The Company has a cross currency swap agreement that is designated as a cash flow hedge to hedge changes in the value of an intercompany loan to a foreign subsidiary due to changes in foreign exchange rates. This intercompany loan is related to the acquisition of STAHL. As of March 31, 2026, the notional amount of this derivative was $50,170,000, and the contract matures on June 30, 2028. From its March 31, 2026 balance of AOCL, the Company expects to reclassify approximately $1,166,000 out of AOCL, and into foreign currency exchange loss (gain), during the next 12 months based on the contractual payments due under this intercompany loan.

The Company has foreign currency forward agreements that are designated as cash flow hedges to hedge a portion of forecasted inventory purchases denominated in foreign currencies. As of March 31, 2026, the notional amount of these derivatives was $6,243,000, and all contracts mature by March 31, 2027. From its March 31, 2026 balance of AOCL, the Company expects to reclassify approximately $15,000 out of AOCL during the next 12 months based on the expected sales of the goods purchased.

The Company's interest rate swap agreements are designated as cash flow hedges to hedge changes in interest expense due to changes in the interest rate of the Company's variable interest rate debt. The Company has eleven interest rate swap agreements outstanding in which it receives interest at a variable rate and pays interest at a fixed rate. The interest rate swaps have varying maturity dates between March 31, 2027 and March 31, 2031, with an aggregate notional amount of $965,000,000 as of March 31, 2026.

The effective portion of the changes in fair values of the interest rate swaps is reported in AOCL and will be reclassified to interest expense over the life of the swap agreements. From its March 31, 2026 balance of AOCL, the Company expects to reclassify approximately $238,000 out of AOCL, and into interest expense, during the next 12 months.
The following is the effect of derivative instruments on the Consolidated Statements of Operation for the years ended March 31, 2026, 2025, and 2024 (in thousands):
Derivatives Designated as Cash Flow  
Hedges		Type of InstrumentAmount of Gain or (Loss) Recognized in Other Comprehensive Income (Loss) on Derivatives (Effective Portion)Location of Gain or
(Loss) Recognized
in Income on
Derivatives		Amount of Gain or (Loss) Reclassified from AOCL into Income (Effective Portion)
March 31, 
2026Foreign exchange contracts$172 Cost of products sold$130 
2026Interest rate swap$171 Interest expense$839 
2026Cross currency swap$(1,497)Foreign currency exchange loss (gain)$(2,423)
2025Foreign exchange contracts$17 Cost of products sold$(27)
2025Interest rate swap$1,792 Interest expense$8,008 
2025Cross currency swap$434 Foreign currency exchange loss (gain)$(15)
2024Foreign exchange contracts$(168)Cost of products sold$(29)
2024Interest rate swap$7,145 Interest expense$9,739 
2024Cross currency swap$(70)Foreign currency exchange loss (gain)$502 

The following is information relative to the Company’s derivative instruments in the Consolidated Balance Sheets as of March 31, 2026 and 2025 (in thousands):
Fair Value of Asset (Liability)
March 31,
Derivatives Designated as
Hedging Instruments		March 31,20262025
Foreign exchange contractsPrepaid expenses and other$48 $139 
Foreign exchange contractsAccrued Liabilities(41)(188)
Interest rate swapPrepaid expenses and other596 597 
Interest rate swapOther Assets529 1 
Interest rate swapAccrued Liabilities(912)(99)
Interest rate swapOther non current liabilities(2,241)(1,639)
Cross currency swapAccrued liabilities(1,571)(49)
Cross currency swapOther non current liabilities(2,361)(1,800)