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Allowance for Doubtful Accounts (Tables) | 3 Months Ended
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Mar. 31, 2018
Receivables [Abstract] |
Schedule of Impaired Financing Receivable | A summary schedule of impaired notes receivable, and the related reserve, for the three months ended March 31, 2018 is as follows:
| Impaired Notes Receivable
| Balance December 31, 2017 |  | Additions |  | Deductions |  | Balance March 31, 2018
| (in thousands)
Impaired Notes Receivable | $ | 6,854 |  |  | $ | 150 |  |  | $ | — |  |  | $ | 7,004 |
Reserve for Impaired Notes Receivable | $ | 2,884 |  |  | $ | 2,752 |  |  | $ | — |  |  | $ | 5,636 |

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- References No definition available. + Details
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