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Share Repurchase Program and Treasury Stock (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended
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Sep. 30, 2020 | Mar. 31, 2020 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Stock Repurchase Program, Additional Authorized Amount |  |  |  |  |  | $ 2,500,000 |
Share Repurchase Program and Treasury Stock (Textuals) [Abstract] |  |  |  |  |  |  |
Remaining Amount to Repurchase under the program | $ 900,000 |  |  |  |  | $ 900,000 |
Shares Purchased Under Share Repurchase Program | 29,100,000 |  |  |  |  | 29,100,000 |
Treasury Stock, Value, Acquired, Cost Method | $ 199,999 | $ 200,000 | $ 186,250 | $ 186,250 | $ 186,250 | $ 400,000 | $ 558,700
Number of shares repurchased |  |  |  |  |  | (475,530) | (794,603)
Average price of share repurchased, per share |  |  |  |  |  | $ 841.14 | $ 703.16
Exercise of stock options and restricted stock units, shares reissued |  |  |  |  |  | 144,776 | 226,841

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- Definition Number of treasury shares reissued during the period as a result of the exercise of stock options and vesting of restricted stock units. + References No definition available. + Details
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- Definition Share Repurchase Program and Treasury Stock. + References No definition available. + Details
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- Definition Shares repurchased program-to-date by a Company's share repurchase program. + References No definition available. + Details
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- Definition The additional amount authorized by an entity's Board of Directors under a stock repurchase program. + References No definition available. + Details
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- Definition Amount remaining of a stock repurchase plan authorized. + References No definition available. + Details
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- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
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- Definition Number of shares that have been repurchased during the period and are being held in treasury. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 + Details
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