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Shareholders Equity Components of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax |  | $ (245,705) | $ (245,705) |  | $ (266,327) | $ (104,931)
Accumulated other comprehensive loss |  | (262,211) | (262,211) |  | (299,449) | (124,883)
Foreign Currency Translation Adjustment and Other, Net |  |  | 20,622 |  | (161,396) |
Unrealized Gain (loss) on Investment Securities, Net |  |  | 0 |  | 0 | 8,852
Unrealized Gain (Loss) on Foreign Exchange Contracts Designated as Net Investment Hedges, Net |  |  | 10,368 |  | 0 | 0
Unrealized Gain (Loss) on Interest Rate Swaps Designated as Cash Flow Hedges, Net |  |  | (7,787) |  | 931 | (2,359)
Employee Benefit Plan Items, Net |  |  | 14,035 |  | 8,253 | 8,853
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent |  |  | 37,238 |  | (174,566) |
Reclassification to Retained Earnings [Member] |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Foreign Currency Translation Adjustment and Other, Net | [1] |  |  |  | 0 |
Unrealized Gain (loss) on Investment Securities, Net | [2] |  |  |  | (14,946) |
Unrealized Gain (Loss) on Foreign Exchange Contracts Designated as Net Investment Hedges, Net | [2] |  |  |  | 0 |
Unrealized Gain (Loss) on Interest Rate Swaps Designated as Cash Flow Hedges, Net | [2] |  |  |  | (1,185) |
Employee Benefit Plan Items, Net | [2] |  |  |  | (6,223) |
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent | [2] |  |  |  | (22,354) |
Other comprehensive income (loss) before reclassifications [Member] |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Foreign Currency Translation Adjustment and Other, Net | [1] |  | 7,658 |  | (161,359) |
Unrealized Gain (loss) on Investment Securities, Net |  |  | 0 |  | 0 |
Unrealized Gain (Loss) on Foreign Exchange Contracts Designated as Net Investment Hedges, Net |  |  | 16,489 |  | 0 |
Unrealized Gain (Loss) on Interest Rate Swaps Designated as Cash Flow Hedges, Net |  |  | (8,767) |  | 0 |
Employee Benefit Plan Items, Net |  |  | (3,079) |  | 4,939 |
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent | [1] |  | 12,301 |  | (156,420) |
Amounts reclassified into income (loss) [Domain] |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Foreign Currency Translation Adjustment and Other, Net |  |  | 12,964 | [3] | (37) |
Unrealized Gain (loss) on Investment Securities, Net |  |  | 0 |  | 0 |
Unrealized Gain (Loss) on Foreign Exchange Contracts Designated as Net Investment Hedges, Net |  |  | (6,121) |  | 0 |
Unrealized Gain (Loss) on Interest Rate Swaps Designated as Cash Flow Hedges, Net |  |  | 980 |  | 931 |
Employee Benefit Plan Items, Net |  |  | 17,114 | [3] | 3,314 |
Other Comprehensive Income (Loss), before Tax, Portion Attributable to Parent |  |  | 24,937 | [3] | 4,208 |
Unrealized Gain (Loss) on Investment Securities, Net [Member] |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Accumulated other comprehensive loss |  | 0 | 0 |  | 0 | 14,946
Unrealized Gain (loss) on Investment Securities, Net |  |  | 0 |  | (14,946) |
Unrealized Gain (Loss) on Foreign Exchange Contracts Designated as Net Investment Hedges, Net |  |  |  |  | 0 |
Unrealized Gain (Loss) on Foreign Exchange Contracts Designated as Net Investment Hedges, Net [Domain] |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Accumulated other comprehensive loss |  | 10,368 | 10,368 |  | 0 | 0
Unrealized Gain (Loss) on Foreign Exchange Contracts Designated as Net Investment Hedges, Net |  |  | 10,368 |  |  |
Unrealized Gain (Loss) on Interest Rate Swaps Designated as Cash Flow Hedges, Net [Member] |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Accumulated other comprehensive loss |  | (13,347) | (13,347) |  | (5,560) | (5,306)
Unrealized Gain (Loss) on Interest Rate Swaps Designated as Cash Flow Hedges, Net |  |  | (7,787) |  | (254) |
Employee Benefit Plan Items, Net [Member] |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Accumulated other comprehensive loss |  | (13,527) | (13,527) |  | (27,562) | (29,592)
Employee Benefit Plan Items, Net |  |  | 14,035 |  | 2,030 |
Intra-entity foreign currency transactions [Member] | Other comprehensive income (loss) before reclassifications [Member] |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Foreign Currency Translation Adjustment and Other, Net |  |  | (10,630) |  | 11,712 |
Reclassification of cumulative translation adjustments to earnings upon sale [Member] | Amounts reclassified into income (loss) [Domain] |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Foreign Currency Translation Adjustment and Other, Net |  |  | 19,602 |  |  |
Wyle Defined Benefit Plan [Member] |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Defined Benefit Plan, Net Periodic Benefit Cost (Credit), Gain (Loss) Due to Settlement |  | $ (20,111) | (20,111) |  | $ 0 | $ (16,706)
Wyle Defined Benefit Plan [Member] | Amounts reclassified into income (loss) [Domain] |  |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |  |
Employee Benefit Plan Items, Net |  |  | $ (15,257) |  |  |
[1] | Foreign currency translation adjustment includes intra-entity foreign currency transactions that are of a long-term investment nature of $(10,630) and $11,712 for 2019 and 2018, respectively.
[2] | Amount relates to unrealized gains and losses on investments and stranded tax effects reclassified from “Accumulated other comprehensive income” to “Retained earnings” in accordance with ASU No. 2018-02 and ASU No. 2016-01.
[3] | Foreign currency translation adjustment includes a reclassification of cumulative translation adjustments to earnings upon the sale of three foreign subsidiaries during 2019 of $19,602 (Note 3). Employee Benefit Plan items, net includes a pre-tax pension settlement expense of $20,111 ($15,257 net of tax) for 2019 (Note 14).

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