2020 Plan Stock Plan 2020 [Member] Accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Thailand THAILAND Statistical Measurement [Domain] Statistical Measurement [Domain] Schedule of Available-for-Sale Securities Based on Stated Effective Maturities Debt Securities, Available-for-Sale [Table Text Block] Schedule of Performance Share Unit Activity Schedule of Nonvested Performance-Based Units Activity [Table Text Block] Award Timing Predetermined Award Timing Predetermined [Flag] 2026 (remaining six months) Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Entity file number Entity File Number Additional Paid-in Capital Additional Paid-in Capital [Member] Others Others [Member] Others Telecom Telecom [Member] Telecom Tabular List, Table Tabular List [Table Text Block] Leases [Abstract] Leases [Abstract] New Accounting Standards—not yet adopted by the Company New Accounting Pronouncements, Policy [Policy Text Block] Restricted share 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