| | For the years ended December 31, | | ||||||||||||||||
| | 2017 | | % | | 2016 | | % | | 2015 | | % | | ||||||
| | (in thousands) | | ||||||||||||||||
Customer A | | $ | 43,645,518 | | | 13 | | | 37,306,348 | | | 11 | | | 42,173,089 | | | 12 | |