Property and Equipment, net (Tables)

3 Months Ended

Mar. 31, 2019

Property, Plant and Equipment [Abstract]

Schedule of Property and Equipment

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

	Three months ended March 31,
	2019		2018
Depreciation and amortization expense	$	8,139	$	6,557

Property and equipment, net consists of the following:

	Estimated useful lives	As of
	(Years)	March 31, 2019			December 31, 2018
Owned Assets:
Network equipment and computers	3-5	$	88,566		$	85,921
Software	3-5	71,419			69,752
Leasehold improvements	3-8	40,312			39,533
Office furniture and equipment	3-8	20,783			20,097
Motor vehicles	2-5	719			635
Buildings	30	1,150			1,140
Land	—	753			746
Capital work in progress	—	12,596			11,026
		236,298			228,850
Less: Accumulated depreciation and amortization		(163,600		)	(155,798		)
		$	72,698		$	73,052
Right-of-use assets under finance leases:
Leasehold improvements		$	794		$	778
Office furniture and equipment		344			53
Motor vehicles		707			628
		1,845			1,459
Less: Accumulated depreciation and amortization		(1,096		)	(1,001		)
		$	749		$	458
Property and equipment, net		$	73,447		$	73,510

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

	Three months ended March 31
	2019		2018
Amortization expense	$	647	$	218

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

	As of
	March 31, 2019			December 31, 2018
Cost	$	9,457		$	8,783
Less : Accumulated amortization	(2,889		)	(2,393		)
Internally developed software, net	$	6,568		$	6,390