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Note O - Restructuring Activities - Restructuring Expense (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Restructuring expense | $ 9,374 | $ 11,799
Customer Dattbase Build Write-off [Member] |  |
Restructuring expense |  | 4,036
Contract Termination [Member] |  |
Restructuring expense |  | 3,101
Adjustment to Contract Termination Fee [Member] |  |
Restructuring expense | (306) |
Employee Severance [Member] |  |
Restructuring expense | 2,495 | 2,098
Lease Impairment and Termination Charges [Member] |  |
Restructuring expense | 2,974 | 956
Capital Losses from Asset Disposal [Member] |  |
Restructuring expense | 1,327 | 350
Facility Closing [Member] |  |
Restructuring expense | 2,884 | 1,258
Facility, Asset Impairment and Other Expense [Member] |  |
Restructuring expense | $ 7,185 | $ 2,564

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- Definition Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 5.P.3) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140864-122747 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6394359&loc=d3e17939-110869 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 420 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)) -URI http://asc.fasb.org/extlink&oid=115931487&loc=d3e140904-122747 + Details
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