Geographic Information - Revenue by Geographic Locations (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) segment	Jun. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Segment Reporting [Abstract]
Number of reportable segments | segment			1
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues	$ 250,781	$ 246,322	$ 537,034	$ 536,375
Long-lived assets	1,192,797		1,192,797		$ 1,194,291
India
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues	188,808	188,612	414,697	420,153
Long-lived assets	688,080		688,080		693,709
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues	37,943	37,722	76,796	75,788
Long-lived assets	372,734		372,734		377,305
Australia
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues	7,906	8,688	16,948	18,372
Long-lived assets	2,765		2,765		2,928
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues	3,902	4,064	8,107	8,168
Long-lived assets	20,678		20,678		23,304
Latin America
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues	5,027	3,095	8,953	6,193
Long-lived assets	12,972		12,972		12,696
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues	1,702	1,595	2,875	2,745
Long-lived assets	6,326		6,326		5,886
Singapore
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues	1,247	1,125	2,185	2,194
Long-lived assets	29,797		29,797		17,260
Indonesia
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues	2,525	459	3,274	864
Long-lived assets	22		22		95
Philippines
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues	816	383	1,500	827
Long-lived assets	589		589		1,824
New Zealand
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues	556	551	1,009	1,043
Long-lived assets	279		279		367
United Arab Emirates
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues	349	28	690	28
Long-lived assets	53,892		53,892		54,254
Mauritius
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues			0	0
Long-lived assets	4,663		4,663		$ 4,663
Indian Led
Revenues from External Customers and Long-Lived Assets [Line Items]
External Revenues	$ 192,700	$ 189,900	$ 420,600	$ 422,500