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Impact of adoption of accounting guidance on prior year’s presentation and disclosures
 12 Months Ended
Dec. 31, 2019
Accounting Changes and Error Corrections [Abstract]  
Impact of adoption of accounting guidance on prior years’ presentation and disclosures Impact of adoption of accounting guidance on prior year’s presentation and disclosures
Effective January 1, 2018, the Company adopted ASU No. 2017-07, Compensation - Retirement Benefits (Topic 715), Improving the Presentation of Net Periodic Pension Cost and Net Periodic Post Retirement Benefit Cost. Accordingly, the Company retrospectively included only the service cost component of the net periodic benefit cost in the same line item or items on the consolidated statements of income as other compensation costs arising from services rendered by the respective employees during the period. The other components of net periodic benefit cost, which included interest cost, expected return on plan assets and amortization of actuarial gains/loss, were reclassified from “Cost of revenues”, “General and administrative expenses” and “Selling and marketing expenses” to “Other income, net”.
The effect of the adoption of ASU No. 2017-07 (Topic 715) on 2017 financial information is summarized as follows:
 
 
Year ended December 31,
 
 
2017
 
 
Previously reported
 
As revised
 
Effect of change increase/(decrease)
Location in consolidated statements of income
 
 
 
 
 
 
Cost of revenues
 
$
495,586

 
$
495,142

 
$
(444
)
General and administrative expenses
 
$
102,567

 
$
102,515

 
$
(52
)
Selling and marketing expenses
 
$
53,383

 
$
53,379

 
$
(4
)
Other income, net
 
$
11,859

 
$
11,359

 
$
(500
)
 
 
Year ended December 31,
 
 
2017
 
 
Cost of revenues previously reported
 
Cost of revenues as revised
 
Effect of change increase/(decrease)
Segment information (refer Note 3)
 
 
 
 
 
 
Insurance
 
$
159,529

 
$
159,433

 
$
(96
)
Healthcare
 
$
49,483

 
$
49,412

 
$
(71
)
TT&L
 
$
41,409

 
$
41,337

 
$
(72
)
F&A
 
$
51,445

 
$
51,362

 
$
(83
)
All Other
 
$
56,697

 
$
56,638

 
$
(59
)
Analytics
 
$
137,023

 
$
136,960

 
$
(63
)
Operating Expenses
 
$
194,499

 
$
194,443

 
$
(56
)
Foreign exchange gain, interest expense and other income, net
 
$
12,809

 
$
12,309

 
$
(500
)


Effective January 1, 2018, the Company adopted ASU 2016-18, Statements of Cash Flows (Topic 230), Restricted Cash. Accordingly, for 2017, restricted cash and restricted cash equivalents is included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown in the consolidated statements of cash flows.

The effect of the adoption of ASU No. 2016-18 (Topic 230) on 2017 financial information is summarized as follows:
 
 
Year ended December 31,
 
 
2017
 
 
Previously reported
 
As revised
 
Effect of change increase/(decrease)
Consolidated statements of cash flows
 
 
 
 
 
 
Net cash provided by operating activities
 
$
113,140

 
$
113,159

 
$
19

Effect of exchange rate changes on cash, cash equivalents and restricted cash
 
$
3,711

 
$
3,935

 
$
224

Net increase/(decrease) in cash, cash equivalents and restricted cash
 
$
(126,360
)
 
$
(126,117
)
 
$
243

Cash, cash equivalents and restricted cash - beginning of year
 
$
213,155

 
$
220,394

 
$
7,239

Cash, cash equivalents and restricted cash - end of year
 
$
86,795

 
$
94,277

 
$
7,482