Derivative financial instruments (Tables)

6 Months Ended

Jun. 30, 2026

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of derivative instruments

The following table summarizes the notional values related to the Company’s derivative instruments outstanding at June 30, 2026 (in thousands except non-currency amounts):


	June 30, 2026
Interest rate swaps	$	38,252
Foreign currency hedges	€	23,512
Natural gas swaps (MMBtus)		920,000

Schedule of fair value of the Company's derivative instruments designated as hedging instruments

The following table presents the fair value of each classification of the Company’s derivative instruments as of June 30, 2026 and December 31, 2025 (in thousands):


	June 30, 2026				December 31, 2025
Derivatives designated as hedging instruments
Cash flow hedges
Current assets	$	336			$	274
Non-current assets		474				218
Current liabilities		(1,658	)			—
Non-current liabilities		(211	)			—
Total designated as hedging instruments	$	(1,059	)		$	492

Derivatives not designated as hedging instruments
Current assets	$	2,811			$	4,353
Non-current assets		8,964				10,475
Current liabilities		(2,811	)			(4,353	)
Non-current liabilities		(8,964	)			(10,475	)
Total not designated as hedging instruments	$	—			$	—

Total current position	$	(1,322	)		$	274
Total non-current position		263				218
Total derivatives	$	(1,059	)		$	492

Schedule of gains and losses from the Company's derivative instruments designated in a cash flow hedging

The following tables present the gains and losses from the Company’s derivative instruments designated in a cash flow hedging relationship recognized in the consolidated statements of income and comprehensive income for the three and six months ended June 30, 2026 and 2025 (in thousands):


Derivatives Designated in				Amount of Gain (Loss) Recognized in Other Comprehensive Income on Derivatives
Cash Flow Hedging				For the three months ended June 30,								For the six months ended June 30,
Relationship				2026				2025				2026				2025
Interest rate swaps				$	3,157			$	510			$	(345	)		$	(530	)

Derivatives Designated in		Location of Gain (Loss) Reclassified from		Amount of Gain (Loss) Reclassified from Accumulated Other Comprehensive Income into Income
Cash Flow Hedging		Accumulated Other Comprehensive		For the three months ended June 30,								For the six months ended June 30,
Relationship		Income into Income		2026				2025				2026				2025
Interest rate swaps		Interest expense		$	1,055			$	217			$	1,140			$	612