v3.8.0.1

Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2017
Accounting Policies [Abstract] |
Summary of Allowance for Losses Progression | The Company establishes an allowance for losses based upon the makeup of the current portfolio, past bad debt experience and current market conditions.
Allowance for Losses Progression (In Thousands) | 2017 |  | 2016 |  | 2015
Beginning balance January 1 | $ | 2,036 |  |  | $ | 2,065 |  |  | $ | 2,065 |
(Write offs) of bad debts, net of collections of previous write offs | (8 | ) |  | (29 | ) |  | — |
Ending balance at December 31 | $ | 2,028 |  |  | $ | 2,036 |  |  | $ | 2,065 |

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