Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2019

Schedule of Property and Equipment, Estimated Useful Lives



	Useful Lives (in years)
Assets:
Network equipment and computers	3-5
Software	3-5
Leasehold improvements	3-8
Office furniture and equipment	3-8
Motor vehicles	2-5
Buildings	30

The amortization expense on internally developed software recognized in the consolidated statements of income was as follows:



	Year ended December 31,
	2019		2018		2017
Amortization expense	$	2,745	$	1,417	$	640

Property and equipment, net consists of the following:



		As of
	Estimated useful lives (Years)	December 31, 2019			December 31, 2018
Owned assets:
Network equipment and computers	3-5	$	98,309		$	85,921
Software	3-5	79,746			69,752
Leasehold improvements	3-8	44,982			39,533
Office furniture and equipment	3-8	22,046			20,097
Motor vehicles	2-5	601			635
Buildings	30	1,114			1,140
Land	—	729			746
Capital work in progress	—	10,309			11,026
		257,836			228,850
Less: Accumulated depreciation and amortization		(179,331		)	(155,798		)
		$	78,505		$	73,052
Right-of-use assets under finance leases:
Leasehold improvements		$	738		$	778
Office furniture and equipment		308			53
Motor vehicles		711			628
		1,757			1,459
Less: Accumulated depreciation and amortization		(1,120		)	(1,001		)
		$	637		$	458
Property and equipment, net		$	79,142		$	73,510

Internally developed software costs, included under Software, was as follows:



	As of
	December 31, 2019			December 31, 2018
Cost	$	15,784		$	8,783
Less : Accumulated amortization	(4,989		)	(2,393		)
Internally developed software, net	$	10,795		$	6,390

The depreciation and amortization expense, excluding amortization of acquisition-related intangibles recognized in the consolidated statements of income was as follows:



	Year ended December 31,
	2019		2018		2017
Depreciation and amortization expense	$	30,423	$	28,189	$	24,574

Summary of Lived Intangible Assets Amortized over their Estimated Useful Lives

The Company’s definite lived intangible assets are amortized over their estimated useful lives as listed below using a straight-line method:



Customer relationships	3-15 years
Leasehold benefits	3-8 years
Developed technology	5-10 years
Non-compete agreements	1-5 years
Trade names and trademarks	3-10 years