v3.6.0.2

Schedule II-Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2016
Schedule II-Valuation and Qualifying Accounts |
Schedule II-Valuation and Qualifying Accounts | Schedule II—Valuation and Qualifying Accounts For the Year Ended December 31, 2016 (dollars in thousands)
|  | Allowance for Doubtful |
|  | Accounts(1) |
|  | 2016 |  | 2015 |  | 2014 |
Balance at beginning of period |  | $ | 1,149 |  | $ | 1,552 |  | $ | 1,853 |
Additions: |  |  |  |  |  |  |  |  |  |
Bad debt expense |  |  | (277) |  |  | 1,213 |  |  | 1,450 |
Deductions: |  |  |  |  |  |  |  |  |  |
Charge-offs of uncollectible balances |  |  | (397) |  |  | (1,616) |  |  | (1,751) |
Balance at end of period |  | $ | 475 |  | $ | 1,149 |  | $ | 1,552 |
| (1) |  | Includes the allowance for doubtful accounts for both accounts receivable and other receivables.

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- Definition The entire disclosure for any allowance and reserve accounts (their beginning and ending balances, as well as a reconciliation by type of activity during the period). Alternatively, disclosure of the required information may be within the footnotes to the financial statements or a supplemental schedule to the financial statements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SX 210.12-09) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690 + Details
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- References No definition available. + Details
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