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[Member] Performance obligations satisfied or partially satisfied in previous periods Contract with Customer, Performance Obligation Satisfied in Previous Period Tabular List, Table Tabular List [Table Text Block] Leases [Abstract] New Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] Secured Overnight Financing Rate (SOFR) Secured Overnight Financing Rate (SOFR) [Member] Guarantor obligations, facility Guarantor Obligations, Maximum Exposure, Undiscounted Goodwill [Line Items] Goodwill [Line Items] Strategic Communications Strategic Communications Segment [Member] Strategic Communications [Member] Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Earnings per common share — basic (in dollars per share) Earnings per common share — basic (in dollars per share) Earnings Per Share, Basic Adjustment to Compensation: Adjustment to Compensation [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] 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[Axis] Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Stock repurchase program authorized amount Share Repurchase Program, Authorized, Amount Commitment fee (as a percent) Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Credit Facility Credit Facility [Member] Credit facility [Member] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Foreign currency translation adjustment Goodwill, Foreign Currency Translation, Gain (Loss) Share-based compensation tax withholdings Payment, Tax Withholding, Share-Based Payment Arrangement Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Net income — basic Net Income (Loss) Available to Common Stockholders, Basic Earnings Per Common Share [Line Items] Earnings Per Common Share [Line Items] Earnings Per 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