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Income Taxes: | 9 Months Ended
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Sep. 30, 2020
Income Tax Disclosure [Abstract] |
Income Tax Disclosure [Text Block] | Income Taxes Income taxes were accrued at an estimated effective tax rate of 5% and 10% for the three and nine months ended September 30, 2020, respectively, as compared to 19% and 14% for the three and nine months ended September 30, 2019, respectively. The effective tax rate for the three and nine months ended September 30, 2020 differs from the federal statutory rate of 21% principally because of the effect of the mix of U.S. and foreign incomes, state income taxes, global intangible low-taxed income ("GILTI"), foreign-derived intangible income ("FDII"), tax credits and the following discrete tax items recognized during the interim periods: •Excess tax benefits recognized on stock option exercises and the vesting of restricted stock units during the three and nine months ended September 30, 2020 of $0.1 million and $3.6 million, respectively. •The revaluation of the contingent consideration during the three and nine months ended September 30, 2020, which resulted in a tax benefit of $0.7 million and $1.1 million, respectively. •U.S. federal and state return-to-provision adjustments net of related reserve changes for the year ended December 31, 2019 resulted in a tax benefit of $3.8 million primarily due to changes in estimates for GILTI, FDII, and related foreign tax credits. The effective tax rate for the three and nine months ended September 30, 2019 differs from the federal statutory rate of 21% principally because of the effect of the mix of U.S. and foreign incomes, state income taxes, GILTI and tax credits and the following discrete tax items recognized during the interim periods: •Excess tax benefits recognized on stock option exercises and the vesting of restricted stock units during the three and nine months ended September 30, 2019 of $0.3 million and $7.7 million, respectively. •The revaluation of the contingent consideration during the nine months ended September 30, 2019 resulted in a tax expense of $11.4 million. •The repatriation of certain intellectual property and assets from one of our foreign subsidiaries to the U.S. parent resulted in a net tax benefit of $3.8 million. •A return-to-provision adjustment for the year ended December 31, 2018 included a tax expense of $2.2 million primarily due to changes in estimates for GILTI.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 21 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32857-109319 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 11.C) -URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330215-122817 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 17 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32809-109319 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 6.I.5.Q1) -URI http://asc.fasb.org/extlink&oid=116825942&loc=d3e330036-122817 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32705-109319 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 270 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6424409&loc=d3e44925-109338 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -URI http://asc.fasb.org/topic&trid=2144680 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331 + Details
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