Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2022

Investments, All Other Investments [Abstract]

Summary of Bond Activity

The following table summarizes our bond activity for the years ended December 31, 2022 and 2021 (in thousands):

	2022		2021
Fair value at January 1	$	38,670	$	25,708
Purchases	19,771		26,980
Redemptions	(5,630)		(6,530)
Maturities	(6,770)		(8,347)
Change in bond premium	(645)		1,517
Fair market value adjustment	(1,911)		(658)
Fair value at December 31	$	43,485	$	38,670

Summary of Outstanding Interest Rate Swaps

The following table summarizes our outstanding interest rate swaps and their classification in the accompanying Consolidated Balance Sheets at December 31, 2022 and 2021 (in thousands). Refer to Note 7, Fair Value Measurements, to the accompanying consolidated financial statements for additional disclosures regarding fair value measurements.

	December 31, 2022
	Notional Amount		Fixed Rate		Expiration	Fair Value		Balance Sheet Location
Interest rate swap	$	15,000	2.571	%	6/1/2023	$	133	Other current asset
Interest rate swap	$	50,000	0.834	%	4/14/2025	$	3,726	Other non-current asset
Interest rate swap	$	30,000	1.186	%	12/14/2026	$	2,871	Other non-current asset
Interest rate swap	$	20,000	2.450	%	8/14/2027	$	1,079	Other non-current asset

	December 31, 2021
	Notional Amount		Fixed Rate		Expiration	Fair Value		Balance Sheet Location
Interest rate swap	$	20,000	1.770	%	5/14/2022	$	(120)	Other current liability
Interest rate swap	$	15,000	2.640	%	6/1/2023	$	(432)	Other non-current liability
Interest rate swap	$	50,000	0.885	%	4/14/2025	$	405	Other non-current asset
Interest rate swap	$	30,000	1.249	%	12/14/2026	$	(64)	Other non-current liability

Summary of Effects of Interest Rate Swap

The following table summarizes the effects of the interest rate swap on our accompanying Consolidated Statements of Comprehensive Income for the years ended December 31, 2022 and 2021 (in thousands):

	Gain recognized in AOCL, net of tax				Gain (loss) reclassified from AOCL into expense
	Twelve Months Ended December 31,				Twelve Months Ended December 31,				Location
	2022		2021		2022		2021
Interest rate swaps	$	6,255	$	929	$	357	$	(1,152)	Interest expense