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Employee Benefit Plans (Tables)
 12 Months Ended
Dec. 31, 2018
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 and the Wyle defined benefit plan. Pension information for the years ended December 31 is as follows:
 
Arrow SERP
 
Wyle Defined Benefit Plan
 
2018
 
2017
 
2018
 
2017
Accumulated benefit obligation
$
82,951

 
$
90,368

 
$
59,399

 
$
60,374

Changes in projected benefit obligation:
 
 
 
 
 
 
 
Projected benefit obligation at beginning of year
97,607

 
91,038

 
60,374

 
97,984

Service cost
3,103

 
2,310

 
—

 
—

Interest cost
3,338

 
3,552

 
2,114

 
3,860

Actuarial loss (gain)
(8,874
)
 
4,929

 
(322
)
 
7,595

Benefits paid
(4,596
)
 
(4,222
)
 
(2,767
)
 
(6,080
)
Settlement
—

 
—

 
—

 
(42,985
)
Projected benefit obligation at end of year
90,578

 
97,607

 
59,399

 
60,374

Changes in plan assets:
 
 
 
 
 
 
 
Fair value of plan assets at beginning of year
—

 
—

 
46,663

 
71,470

Actual return on plan assets
—

 
—

 
29

 
10,258

Company contributions
—

 
—

 
11,000

 
14,000

Benefits paid
—

 
—

 
(2,767
)
 
(6,080
)
Settlement
—

 
—

 
—

 
(42,985
)
Fair value of plan assets at end of year
—

 
—

 
54,925

 
46,663

Funded status
$
(90,578
)
 
$
(97,607
)
 
$
(4,474
)
 
$
(13,711
)
Amounts recognized in the company's consolidated balance sheets:
 
 
 
 
 
 
 
Current liabilities
$
(4,532
)
 
$
(4,535
)
 
$
(4,474
)
 
$
—

Noncurrent liabilities
(86,046
)
 
(93,072
)
 
—

 
(13,711
)
Net liabilities at end of year
(90,578
)
 
(97,607
)
 
(4,474
)
 
(13,711
)
Components of net periodic pension cost:
 
 
 
 
 
 
 
Service cost
3,103

 
2,310

 
—

 
—

Interest cost
3,338

 
3,552

 
2,114

 
3,860

Expected return on plan assets
—

 
—

 
(2,648
)
 
(3,449
)
Amortization of net loss
1,531

 
1,216

 
702

 
1,666

Settlement charge
—

 
—

 
—

 
16,706

Net periodic pension cost
$
7,972

 
$
7,078

 
$
168

 
$
18,783

Weighted-average assumptions used to determine benefit obligation:
 
 
 
 
 
 
 
Discount rate
4.20
%
 
3.50
%
 
2.60
%
 
3.60
%
Rate of compensation increase
5.00
%
 
5.00
%
 
N/A

 
N/A

Expected return on plan assets
N/A

 
N/A

 
2.25
%
 
5.25
%
Weighted-average assumptions used to determine net periodic pension cost:
 
 
 
 
 
 
 
Discount rate
3.50
%
 
4.00
%
 
3.60
%
 
4.00
%
Rate of compensation increase
5.00
%
 
5.00
%
 
N/A

 
N/A

Expected return on plan assets
N/A

 
N/A

 
5.25
%
 
4.75
%
Schedule of Expected Benefit Payments [Table Text Block] Benefit payments are expected to be paid as follows:

 
Arrow SERP
2019
$
4,532

2020
4,481

2021
5,825

2022
6,058

2023
6,405

2024-2026
33,724
Schedule of Allocation of Plan Assets [Table Text Block] The fair values of the company's pension plan assets for the Wyle defined benefit plan at December 31, 2018, utilizing the fair value hierarchy discussed in Note 7, are as follows:

 
Level 1
 
Level 2
 
Level 3
 
Total
Fixed Income:
 
 
 
 
 
 
 
Mutual funds
$
54,925

 
$
—

 
$
—

 
$
54,925

Total
$
54,925

 
$
—

 
$
—

 
$
54,925


The fair values of the company's pension plan assets for the Wyle defined benefit plan at December 31, 2017, utilizing the fair value hierarchy discussed in Note 7, are as follows:

 
Level 1
 
Level 2
 
Level 3
 
Total
Equities:
 
 
 
 
 
 
 
U.S. common stocks
$
17,039

 
$
—

 
$
—

 
$
17,039

International mutual funds
6,975

 
—

 
—

 
6,975

Index mutual funds
2,942

 
—

 
—

 
2,942

Fixed Income:
 
 
 
 
 
 
 
Mutual funds
19,707

 
—

 
—

 
19,707

Total
$
46,663

 
$
—

 
$
—

 
$
46,663