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Fair Value Measurements (Tables) | 6 Months Ended
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Jun. 30, 2018
Fair Value Measurements |
Schedule of fair value hierarchy of assets measured on nonrecurring basis and gain (losses) recorded |
|  | Assets at Fair Value |  | Total Losses
|  | June 30, 2018 |  | December 31, 2017 |  | Six Months Ended June 30,
|  | Level 1 |  | Level 2 |  | Level 3 |  | Total |  | Level 1 |  | Level 2 |  | Level 3 |  | Total |  | 2018 |  | 2017
|  | (in thousands) |  | (in thousands)
Equipment held for lease |  | $ | — |  | $ | — |  | $ | — |  | $ | — |  | $ | — |  | $ | 23,255 |  | $ | — |  | $ | 23,255 |  | $ | — |  | $ | (9,019)
Equipment held for sale |  |  | — |  |  | 3,227 |  |  | — |  |  | 3,227 |  |  | — |  |  | 39,261 |  |  | — |  |  | 39,261 |  |  | (3,578) |  |  | (4,423)
Spare parts inventory |  |  | — |  |  | 593 |  |  | — |  |  | 593 |  |  | — |  |  | 5,336 |  |  | — |  |  | 5,336 |  |  | (1,517) |  |  | (1,843)
Total |  | $ | — |  | $ | 3,820 |  | $ | — |  | $ | 3,820 |  | $ | — |  | $ | 67,852 |  | $ | — |  | $ | 67,852 |  | $ | (5,095) |  | $ | (15,285)

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- Definition Tabular disclosure of the fair value hierarchy of the assets measured at fair value on a nonrecurring basis and the gains (losses) recorded during the period. + References No definition available. + Details
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