Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2021

Defined Benefit Plan Disclosure [Line Items]

Schedule of Defined Benefit Plans Disclosures [Table Text Block]

The company uses a December 31 measurement date for the Arrow SERP benefit plan. Pension information for the years ended December 31 is as follows:

	Arrow SERP
	2021			2020
Accumulated benefit obligation	$	97,568		$	100,825
Changes in projected benefit obligation:
Projected benefit obligation at beginning of year	109,556			101,817
Service cost	3,514			3,514
Interest cost	2,575			3,087
Actuarial loss (gain)	(5,569)			5,699
Benefits paid	(4,602)			(4,561)
Projected benefit obligation at end of year	105,474			109,556
Funded status	$	(105,474)		$	(109,556)
Amounts recognized in the company's consolidated balance sheets:
Current liabilities	$	(4,927)		$	(4,532)
Noncurrent liabilities	(100,547)			(105,024)
Net liability at end of year	$	(105,474)		$	(109,556)
Components of net periodic pension cost:
Service cost	$	3,514		$	3,514
Interest cost	2,575			3,087
Amortization of net loss	2,449			1,606
Net periodic pension cost	$	8,538		$	8,207
Weighted-average assumptions used to determine benefit obligation:
Discount rate	2.70		%	2.40		%
Rate of compensation increase	5.00		%	5.00		%
Expected return on plan assets	N/A			N/A
Weighted-average assumptions used to determine net periodic pension cost:
Discount rate	2.40		%	3.10		%
Rate of compensation increase	5.00		%	5.00		%
Expected return on plan assets	N/A			N/A

Schedule of Expected Benefit Payments [Table Text Block]

Benefit payments are expected to be paid as follows:

	Arrow SERP
2022	$	4,927
2023	6,461
2024	6,396
2025	6,306
2026	6,732
2027-2031	34,053