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Acquisition (Detail Textual) - USD ($) $ in Thousands |  | 6 Months Ended |
--- | --- | --- | ---
Aug. 11, 2020 | Dec. 31, 2020 | Jun. 30, 2020
Business Acquisition [Line Items] |  |  |
Goodwill |  | $ 3,631,496 | $ 3,407,110
Customer contracts and related customer relationships |  |  |
Business Acquisition [Line Items] |  |  |
Amortization period of acquired intangible assets |  | 17 years 8 months 12 days |
Technology |  |  |
Business Acquisition [Line Items] |  |  |
Amortization period of acquired intangible assets |  | 14 years 7 months 6 days |
AVT |  |  |
Business Acquisition [Line Items] |  |  |
Purchase consideration | $ 348,800 |  |
Acquisition date | Aug. 11, 2020 |  |
Goodwill | $ 211,000 |  |
Identifiable intangible assets | 133,800 |  |
Amount of tax deductible goodwill and intangibles | 319,700 |  |
AVT | Customer contracts and related customer relationships |  |  |
Business Acquisition [Line Items] |  |  |
Identifiable intangible assets | $ 65,700 |  |
Amortization period of acquired intangible assets | 20 years |  |
AVT | Technology |  |  |
Business Acquisition [Line Items] |  |  |
Identifiable intangible assets | $ 68,100 |  |
Amortization period of acquired intangible assets | 10 years |  |

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- Definition Date when the acquirer obtains control of the acquiree, in CCYY-MM-DD format. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=116868678&loc=d3e848-128460 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=116868678&loc=d3e845-128460 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463 + Details
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- Definition Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6613-128477 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120321790&loc=d3e6927-128479 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 30 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=116859721&loc=d3e6578-128477 + Details
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