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Employee Benefit Plans - Arrow SERP and Wyle Defined Benefit Plan (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 USD ($) Employees | Dec. 31, 2019 USD ($) Employees | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Defined Contribution Plan, Employer Discretionary Contribution Amount |  |  | $ 7,503 | $ 7,574
Supplemental Employee Retirement Plan [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Defined Benefit Plan, Accumulated Benefit Obligation | $ 93,385 | $ 93,385 | 82,951 |
Defined Benefit Plan, Benefit Obligation | 101,817 | 101,817 | 90,578 | 97,607
Defined Benefit Plan, Service Cost |  | 2,874 | 3,103 |
Defined Benefit Plan, Interest Cost |  | 3,710 | 3,338 |
Defined Benefit Plan, Benefit Obligation, Actuarial (Gain) Loss |  | 9,210 | (8,874) |
Defined Benefit Plan, Benefit Obligation, Benefits Paid |  | 4,555 | 4,596 |
Defined Benefit Plan, Lum Sum Payments |  | 0 | 0 |
Defined Benefit Plan, Funded (Unfunded) Status of Plan | (101,817) | (101,817) | (90,578) |
Liability, Defined Benefit Plan, Current | (4,535) | (4,535) | (4,532) |
Liability, Defined Benefit Plan, Noncurrent | $ (97,282) | (97,282) | (86,046) |
Defined Benefit Plan, Expected Return (Loss) on Plan Assets |  | 0 | 0 |
Defined Benefit Plan, Amortization of Gain (Loss) |  | (100) | (1,531) |
Settlement charge |  | 0 | 0 |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) |  | $ 6,684 | $ 7,972 |
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate | 3.10% | 3.10% | 4.20% |
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Rate of Compensation Increase | 5.00% | 5.00% | 5.00% |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate |  | 4.20% | 3.50% |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Rate of Compensation Increase |  | 5.00% | 5.00% |
Defined Benefit Plan, Expected Future Benefit Payments in Year One | $ 4,535 | $ 4,535 |  |
Defined Benefit Plan, Expected Future Benefit Payment, Year Two | 5,882 | 5,882 |  |
Defined Benefit Plan, Expected Future Benefit Payments in Year Three | 6,037 | 6,037 |  |
Defined Benefit Plan, Expected Future Benefit Payments in Year Four | 6,426 | 6,426 |  |
Defined Benefit Plan, Expected Future Benefit Payments in Year Five | 6,611 | 6,611 |  |
Defined Benefit Plan, Expected Future Benefit Payments in Five Fiscal Years Thereafter | 34,043 | 34,043 |  |
Funding in Rabbi Trust | 94,255 | 94,255 |  |
Wyle Defined Benefit Plan [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Defined Benefit Plan, Accumulated Benefit Obligation | 0 | 0 | $ 59,399 |
Defined Benefit Plan, Benefit Obligation | 0 | 0 | 59,399 | 60,374
Defined Benefit Plan, Service Cost |  | 0 | 0 |
Defined Benefit Plan, Interest Cost |  | 1,130 | 2,114 |
Defined Benefit Plan, Benefit Obligation, Actuarial (Gain) Loss |  | 1,500 | (322) |
Defined Benefit Plan, Benefit Obligation, Benefits Paid |  | 2,718 | 2,767 |
Defined Benefit Plan, Lum Sum Payments |  | (59,311) | 0 | (42,985)
Defined Benefit Plan, Plan Assets, Amount | 502 | 502 | 54,925 | 46,663
Defined Benefit Plan, Plan Assets, Increase (Decrease) for Actual Return (Loss) |  | 7,606 | 29 |
Defined Benefit Plan, Plan Assets, Contributions by Employer |  | 0 | 11,000 |
Defined Benefit Plan, Plan Assets, Benefits Paid |  | (2,718) | (2,767) |
Defined Benefit Plan, Plan Assets, Payment for Settlement |  | (59,311) | 0 |
Defined Benefit Plan, Funded (Unfunded) Status of Plan | 502 | 502 | (4,474) |
Assets for Plan Benefits, Defined Benefit Plan | 502 | 502 |  |
Liability, Defined Benefit Plan, Current | 0 | 0 | (4,474) |
Liability, Defined Benefit Plan, Noncurrent | 0 | 0 | 0 |
Defined Benefit Plan, Expected Return (Loss) on Plan Assets |  | (954) | (2,648) |
Defined Benefit Plan, Amortization of Gain (Loss) |  | (820) | (702) |
Settlement charge | $ 20,111 | 20,111 | 0 | $ 16,706
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) |  | $ 21,107 | $ 168 |
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate |  |  | 2.60% |
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Expected Long-Term Return on Assets |  |  | 2.25% |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Discount Rate |  | 2.60% | 3.60% |
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets |  |  | 5.25% |
Current Arrow SERP [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Number of Participants | Employees | 9 | 9 |  |
Former Arrow SERP [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Number of Participants | Employees | 23 | 23 |  |

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- Definition Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 + Details
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- Definition Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=112275985&loc=d3e4179-114921 + Details
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- Definition Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(6) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39716-114964 + Details
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- Definition Amount of payment, which decreases benefit obligation of defined benefit plan, for irrevocable action relieving primary responsibility for benefit obligation and eliminating risk for obligation and assets used to effect settlement. Transaction constituting settlement includes, but is not limited to, making lump-sum cash payment to participant in exchange for their rights to receive specified benefits and purchasing nonparticipating annuity contract. Excludes decreases to benefit obligation for remeasurement due to settlement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(10) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 30 -Section 15 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=7577095&loc=d3e8001-114927 + Details
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- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=112275985&loc=d3e4179-114921 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 + Details
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- Definition Amount of payment to participant under defined benefit plan which decreases plan assets. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39716-114964 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(5) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 + Details
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