Fair Value Measurements (Tables)

9 Months Ended

Dec. 31, 2024

Financial Assets And Liabilities Measured At Fair Value On Recurring Basis [Table Text Block]

At December 31, 2024 and 2023, and at March 31, 2024, the Company had certain financial assets and financial liabilities that were required to be measured and reported at fair value on a recurring basis. These assets and liabilities are listed in the tables below and are classified based on how their values were determined under the fair value hierarchy or the NAV practical expedient:


	December 31, 2024
			Fair Value Hierarchy
(in thousands of dollars)	NAV		Level 1		Level 2		Level 3		Total

Assets
Money market funds	$	149	$	—	$	—	$	—	$	149
Trading securities associated with deferred compensation plans	—		11,930		—		—		11,930
Interest rate swap agreements	—		—		6,310		—		6,310
Foreign currency exchange contracts	—		—		628		—		628
Total financial assets measured and reported at fair value	$	149	$	11,930	$	6,938	$	—	$	19,017

Liabilities




Foreign currency exchange contracts	$	—	$	—	$	17,235	$	—	$	17,235
Total financial liabilities measured and reported at fair value	$	—	$	—	$	17,235	$	—	$	17,235


	December 31, 2023
			Fair Value Hierarchy
(in thousands of dollars)	NAV		Level 1		Level 2		Level 3		Total

Assets
Money market funds	$	145	$	—	$	—	$	—	$	145
Trading securities associated with deferred compensation plans	—		11,880		—		—		11,880
Interest rate swap agreements	—		—		633		—		633
Foreign currency exchange contracts	—		—		183		—		183
Total financial assets measured and reported at fair value	$	145	$	11,880	$	816	$	—	$	12,841

Liabilities




Foreign currency exchange contracts	$	—	$	—	$	1,377	$	—	$	1,377
Total financial liabilities measured and reported at fair value	$	—	$	—	$	1,377	$	—	$	1,377


	March 31, 2024
			Fair Value Hierarchy
(in thousands of dollars)	NAV		Level 1		Level 2		Level 3		Total

Assets
Money market funds	$	145	$	—	$	—	$	—	$	145
Trading securities associated with deferred compensation plans	—		12,409		—		—		12,409
Interest rate swap agreements	—		—		6,706		—		6,706
Foreign currency exchange contracts	—		—		322		—		322
Total financial assets measured and reported at fair value	$	145	$	12,409	$	7,028	$	—	$	19,582

Liabilities




Foreign currency exchange contracts	$	—	$	—	$	21	$	—	$	21
Total financial liabilities measured and reported at fair value	$	—	$	—	$	21	$	—	$	21

Schedule of Carrying Values and Estimated Fair Values of Debt Instruments [Table Text Block]

The following table summarizes the fair and carrying value of the Company’s long-term debt, and if applicable any current portion, at each of the balance sheet dates December 31, 2024, and 2023 and March 31, 2024:


(in millions of dollars)	December 31, 2024		December 31, 2023		March 31, 2024
Fair market value of long term obligations	$	618	$	617	$	618
Carrying value of long term obligations	$	620	$	620	$	620