Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2017	Dec. 31, 2016
Owned Assets:
Owned assets, gross	$ 194,962	$ 164,097
Less: Accumulated depreciation and amortization	(131,519)	(115,568)
Owned Assets, net	63,443	48,529
Assets under capital leases:
Capital leased assets, gross	1,813	1,797
Less: Accumulated depreciation and amortization	(1,278)	(1,297)
Assets under capital leases, net	535	500
Property, Plant and Equipment, net	63,978	49,029
Network equipment and computers
Owned Assets:
Owned assets, gross	73,158	65,381
Software
Owned Assets:
Owned assets, gross	56,513	44,617
Leasehold improvements
Owned Assets:
Owned assets, gross	36,176	31,192
Assets under capital leases:
Capital leased assets, gross	898	854
Office furniture and equipment
Owned Assets:
Owned assets, gross	17,241	15,426
Assets under capital leases:
Capital leased assets, gross	140	133
Motor vehicles
Owned Assets:
Owned assets, gross	695	580
Assets under capital leases:
Capital leased assets, gross	775	810
Buildings
Owned Assets:
Owned assets, gross	$ 1,232	1,171
Equipment useful life (in years)	30 years
Land
Owned Assets:
Owned assets, gross	$ 806	766
Capital work in progress
Owned Assets:
Owned assets, gross	$ 9,141	$ 4,964
Minimum \| Network equipment and computers
Owned Assets:
Equipment useful life (in years)	3 years
Minimum \| Software
Owned Assets:
Equipment useful life (in years)	3 years
Minimum \| Leasehold improvements
Owned Assets:
Equipment useful life (in years)	3 years
Minimum \| Office furniture and equipment
Owned Assets:
Equipment useful life (in years)	3 years
Minimum \| Motor vehicles
Owned Assets:
Equipment useful life (in years)	2 years
Maximum \| Network equipment and computers
Owned Assets:
Equipment useful life (in years)	5 years
Maximum \| Software
Owned Assets:
Equipment useful life (in years)	5 years
Maximum \| Leasehold improvements
Owned Assets:
Equipment useful life (in years)	8 years
Maximum \| Office furniture and equipment
Owned Assets:
Equipment useful life (in years)	8 years
Maximum \| Motor vehicles
Owned Assets:
Equipment useful life (in years)	5 years

Cumulative amount of depreciation, depletion and amortization (related to property, plant and equipment, but not including land or leased assets).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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