Segment & Geographical Information (Tables)

12 Months Ended

Dec. 31, 2017

Segment Reporting [Abstract]

Revenues and Cost of Revenues for Company's Reportable Segments

Revenues and cost of revenues for each of the years ended December 31, 2017, 2016 and 2015, for each of the reportable segments, are as follows:

	Year ended December 31, 2017
	Insurance		Healthcare		TT&L		F&A		All Other		Analytics		Total
Revenues, net	$	234,794	$	77,013	$	70,951	$	86,527	$	83,082	$	209,943	$	762,310
Cost of revenues (exclusive of depreciation and amortization)	159,529		49,483		41,409		51,445		56,697		137,023		495,586
Gross profit	$	75,265	$	27,530	$	29,542	$	35,082	$	26,385	$	72,920	$	266,724
Operating expenses													194,499
Foreign exchange gain, interest expense and other income, net													12,809
Income tax expense													36,146
Net income													$	48,888

	Year ended December 31, 2016
	Insurance		Healthcare		TT&L		F&A		All Other		Analytics		Total
Revenues, net	$	206,327	$	68,656	$	69,366	$	79,416	$	96,489	$	165,734	$	685,988
Cost of revenues (exclusive of depreciation and amortization)	146,203		44,098		41,962		48,302		61,050		106,341		447,956
Gross profit	$	60,124	$	24,558	$	27,404	$	31,114	$	35,439	$	59,393	$	238,032
Operating expenses													173,810
Foreign exchange gain, interest expense and other income, net													19,662
Income tax expense													22,151
Net income													$	61,733

	Year ended December 31, 2015
	Insurance		Healthcare		TT&L		F&A		All Other		Analytics		Total
Revenues, net	$	199,878	$	55,209	$	62,264	$	78,504	$	110,486	$	122,151	$	628,492
Cost of revenues (exclusive of depreciation and amortization)	134,196		37,224		37,506		46,846		68,307		78,838		402,917
Gross profit	$	65,682	$	17,985	$	24,758	$	31,658	$	42,179	$	43,313	$	225,575
Operating expenses													158,232
Foreign exchange gain, interest expense and other income, net													8,433
Income tax expense													24,211
Net income													$	51,565

Net revenues of the Company by service type, were as follows:

	Year ended December 31,
	2017		2016		2015
BPM and related services (1)	$	552,367	$	520,254	$	506,341
Analytics services	209,943		165,734		122,151
Total	$	762,310	$	685,988	$	628,492

(1) BPM and related services include revenues of the Company's five industry-focused operating segments, one capability operating segment and the consulting operating segment, which provides services related to operations management services.

Revenues Based on Geographical Information

The Company attributes the revenues to regions based upon the location of its customers.

	Year ended December 31,
	2017		2016		2015
Revenues, net
United States	$	626,336	$	554,945	$	496,418
Non-United States
United Kingdom	108,640		109,905		108,868
Rest of World	27,334		21,138		23,206
Total Non-United States	135,974		131,043		132,074
	$	762,310	$	685,988	$	628,492

Property and Equipment, Net Based on Geographical Information

Property and equipment, net by geographic area, are as follows:

	As of
	December 31, 2017		December 31, 2016
Property and equipment, net
India	$	39,143	$	23,362
United States	16,371		10,809
Philippines	8,217		11,900
Rest of World	3,026		2,958
	$	66,757	$	49,029