Geographic Information (Details)
$ in Thousands |
12 Months Ended |
|
Dec. 31, 2021
USD ($)
segment
|
Dec. 31, 2020
USD ($)
|
Dec. 31, 2019
USD ($)
|
| Revenues from External Customers and Long-Lived Assets [Line Items] |
|
|
|
| Number of operating segments | segment |
1
|
|
|
| Number of reportable segments | segment |
1
|
|
|
| Operating revenue: |
$ 994,938
|
$ 625,609
|
$ 580,615
|
| Long-lived assets |
1,194,291
|
1,207,955
|
1,227,684
|
| India |
|
|
|
| Revenues from External Customers and Long-Lived Assets [Line Items] |
|
|
|
| Operating revenue: |
755,543
|
378,660
|
300,678
|
| Long-lived assets |
693,709
|
698,936
|
700,986
|
| United States |
|
|
|
| Revenues from External Customers and Long-Lived Assets [Line Items] |
|
|
|
| Operating revenue: |
155,346
|
166,320
|
182,530
|
| Long-lived assets |
377,305
|
381,782
|
395,225
|
| Australia |
|
|
|
| Revenues from External Customers and Long-Lived Assets [Line Items] |
|
|
|
| Operating revenue: |
37,820
|
33,846
|
33,268
|
| Long-lived assets |
2,928
|
3,581
|
3,541
|
| Europe |
|
|
|
| Revenues from External Customers and Long-Lived Assets [Line Items] |
|
|
|
| Operating revenue: |
16,366
|
13,145
|
14,695
|
| Long-lived assets |
23,304
|
22,900
|
24,508
|
| Latin America |
|
|
|
| Revenues from External Customers and Long-Lived Assets [Line Items] |
|
|
|
| Operating revenue: |
12,901
|
14,801
|
19,755
|
| Long-lived assets |
12,696
|
13,723
|
17,176
|
| Canada |
|
|
|
| Revenues from External Customers and Long-Lived Assets [Line Items] |
|
|
|
| Operating revenue: |
5,333
|
4,383
|
4,805
|
| Long-lived assets |
5,886
|
6,930
|
7,012
|
| Singapore |
|
|
|
| Revenues from External Customers and Long-Lived Assets [Line Items] |
|
|
|
| Operating revenue: |
3,875
|
3,969
|
6,549
|
| Long-lived assets |
17,260
|
19,336
|
18,282
|
| New Zealand |
|
|
|
| Revenues from External Customers and Long-Lived Assets [Line Items] |
|
|
|
| Operating revenue: |
2,007
|
1,804
|
1,955
|
| Long-lived assets |
367
|
513
|
578
|
| United Arab Emirates |
|
|
|
| Revenues from External Customers and Long-Lived Assets [Line Items] |
|
|
|
| Operating revenue: |
1,982
|
3,335
|
683
|
| Long-lived assets |
54,254
|
54,789
|
54,887
|
| Indonesia |
|
|
|
| Revenues from External Customers and Long-Lived Assets [Line Items] |
|
|
|
| Operating revenue: |
1,981
|
3,206
|
9,706
|
| Long-lived assets |
95
|
139
|
117
|
| Philippines |
|
|
|
| Revenues from External Customers and Long-Lived Assets [Line Items] |
|
|
|
| Operating revenue: |
1,784
|
2,140
|
5,991
|
| Long-lived assets |
1,824
|
661
|
729
|
| Mauritius |
|
|
|
| Revenues from External Customers and Long-Lived Assets [Line Items] |
|
|
|
| Operating revenue: |
0
|
0
|
0
|
| Long-lived assets |
4,663
|
4,665
|
4,643
|
| Indian led |
|
|
|
| Revenues from External Customers and Long-Lived Assets [Line Items] |
|
|
|
| Operating revenue: |
$ 762,300
|
$ 388,300
|
$ 320,000
|