Employee Benefit Plan - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($) Employees	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Defined Benefit Plan Disclosure [Line Items]
Other Comprehensive Income (loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Loss Recognized in Net Periodic Benefit Cost, After Tax	$ 12,070	$ 10,625	$ 3,282
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Loss, After Tax	3,795	740	185
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), Net Actuarial Loss, After Tax	28,569	36,841
Defined Contribution Plan, Cost Recognized	13,627	13,432	13,604
Defined Contribution Plan, Employer Discretionary Contribution Amount	7,574	7,572	7,151
International [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Contribution Plan, Cost Recognized	$ 18,815	12,882	$ 11,465
Equities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Allocation Percentage of Assets, Equity Securities	58.00%
Fixed Income [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Allocation Percentage of Assets, Equity Securities	42.00%
Current Arrow SERP [Member]
Defined Benefit Plan Disclosure [Line Items]
Number of Participants | Employees	10
Former Arrow SERP [Member]
Defined Benefit Plan Disclosure [Line Items]
Number of Participants | Employees	22
Defined Benefit Plan, Actuarial Loss [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Amortization of Net Losses	$ 1,439
Wyle Defined Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Benefits Paid	6,080	6,223
Defined Benefit Plan, Settlements, Benefit Obligation	42,985	26,063
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements	$ (16,706)	$ (12,211)