| | | December 31, | | ||||
| | | 2017 | | 2016 | | ||
| | | (in thousands) | | ||||
| Less than one year | | $ | 46,538 | | | 8,052 | |
| Between one and five years | | | 404,695 | | | 32,208 | |
| More than five years | | | 2,189,936 | | | 87,230 | |
| | | $ | 2,641,169 | | | 127,490 | |