Employee Benefit Plan - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) Employees	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Loss, After Tax	$ 4,341	$ 2,922	$ (6,339)
Other Comprehensive Income (loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Loss Recognized in Net Periodic Benefit Cost, After Tax	1,220	15,797	1,758
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Actuarial Loss, After Tax	17,375	14,253
Defined Benefit Plan, Expected Amortization of Gain (Loss), Next Fiscal Year	1,860
Defined Contribution Plan, Cost	17,989	19,655	20,523
Defined Contribution Plan, Employer Discretionary Contribution Amount			7,503
Supplemental Employee Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Benefit Obligation, Payment for Settlement	0	0
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	0	0
Funding in Rabbi Trust	101,495
International [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Cost	21,819	21,025	$ 18,996
Wyle Defined Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Benefit Obligation, Payment for Settlement	0	(59,311)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement	$ 0	$ (20,111)
Former Arrow SERP [Member] | Supplemental Employee Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Number of Participants | Employees	23
Current Arrow SERP [Member] | Supplemental Employee Retirement Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Number of Participants | Employees	10