Property and Equipment, net - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2022	Dec. 31, 2021
Owned Assets:
Owned assets, gross	$ 309,323	$ 299,361
Less: Accumulated depreciation and amortization	(229,813)	(213,699)
Owned assets, net	79,510	85,662
Right-of-use assets under finance leases:
Finance lease, right of use asset, gross	2,416	2,685
Less: Accumulated depreciation and amortization	(1,993)	(2,339)
Property and equipment, net	423	346
Property and equipment, net	$ 79,933	$ 86,008
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Property and equipment, net	Property and equipment, net
Network equipment and computers
Owned Assets:
Owned assets, gross	$ 125,523	$ 116,023
Right-of-use assets under finance leases:
Finance lease, right of use asset, gross	84	91
Software
Owned Assets:
Owned assets, gross	106,738	101,884
Leasehold improvements
Owned Assets:
Owned assets, gross	43,326	46,401
Right-of-use assets under finance leases:
Finance lease, right of use asset, gross	1,030	1,229
Office furniture and equipment
Owned Assets:
Owned assets, gross	20,669	22,302
Right-of-use assets under finance leases:
Finance lease, right of use asset, gross	666	787
Motor vehicles
Owned Assets:
Owned assets, gross	573	693
Right-of-use assets under finance leases:
Finance lease, right of use asset, gross	$ 636	578
Buildings
Owned Assets:
Estimated useful lives	30 years
Owned assets, gross	$ 978	1,070
Land
Owned Assets:
Owned assets, gross	640	700
Capital work in progress
Owned Assets:
Owned assets, gross	$ 10,876	$ 10,288
Minimum | Network equipment and computers
Owned Assets:
Estimated useful lives	3 years
Minimum | Software
Owned Assets:
Estimated useful lives	2 years
Minimum | Leasehold improvements
Owned Assets:
Estimated useful lives	3 years
Minimum | Office furniture and equipment
Owned Assets:
Estimated useful lives	3 years
Minimum | Motor vehicles
Owned Assets:
Estimated useful lives	2 years
Maximum | Network equipment and computers
Owned Assets:
Estimated useful lives	5 years
Maximum | Software
Owned Assets:
Estimated useful lives	5 years
Maximum | Leasehold improvements
Owned Assets:
Estimated useful lives	8 years
Maximum | Office furniture and equipment
Owned Assets:
Estimated useful lives	8 years
Maximum | Motor vehicles
Owned Assets:
Estimated useful lives	5 years