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Valuation and Qualifying Accounts | 12 Months Ended
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Dec. 31, 2016
Valuation And Qualifying Accounts [Abstract] |
Valuation and Qualifying Accounts | PREFORMED LINE PRODUCTS COMPANY SCHEDULE II – VALUATION AND QUALIFYING ACCOUNTS Year Ended December 31, 2017, 2016 and 2015 (Thousands of dollars)
For the year ended December 31, 2017: |  | Balance at beginning of period |  |  | Additions charged to costs and expenses |  |  | Deductions |  |  | Other additions or deductions (a) |  |  | Balance at end of period |
Allowance for doubtful accounts |  | $ | 2,815 |  |  | $ | 472 |  |  | $ | (432 | ) |  | $ | 55 |  |  | $ | 2,910 |
Reserve for credit memos |  |  | 395 |  |  |  | 693 |  |  |  | (675 | ) |  |  | 2 |  |  |  | 415 |
Slow-moving and obsolete inventory reserves |  |  | 11,560 |  |  |  | 998 |  |  |  | (3,855 | ) |  |  | 363 |  |  |  | 9,066 |
Accrued product warranty |  |  | 1,058 |  |  |  | 347 |  |  |  | (399 | ) |  |  | 70 |  |  |  | 1,076 |
Foreign net operating loss tax carryforwards |  |  | 3,805 |  |  |  | 490 |  |  |  | (312 | ) |  |  | (18 | ) |  |  | 3,965 |
For the year ended December 31, 2016: |  | Balance at beginning of period |  |  | Additions charged to costs and expenses |  |  | Deductions |  |  | Other additions or deductions (a) |  |  | Balance at end of period |
Allowance for doubtful accounts |  | $ | 1,871 |  |  | $ | 1,809 |  |  | $ | (864 | ) |  | $ | (1 | ) |  | $ | 2,815 |
Reserve for credit memos |  |  | 455 |  |  |  | (674 | ) |  |  | 613 |  |  |  | 1 |  |  |  | 395 |
Slow-moving and obsolete inventory reserves |  |  | 10,230 |  |  |  | 2,825 |  |  |  | (1,408 | ) |  |  | (87 | ) |  |  | 11,560 |
Accrued product warranty |  |  | 714 |  |  |  | 649 |  |  |  | (269 | ) |  |  | (36 | ) |  |  | 1,058 |
Foreign net operating loss tax carryforwards |  |  | 5,209 |  |  |  | 346 |  |  |  | (1,175 | ) |  |  | (575 | ) |  |  | 3,805 |
For the year ended December 31, 2015: |  | Balance at beginning of period |  |  | Additions charged to costs and expenses |  |  | Deductions |  |  | Other additions or deductions (a) |  |  | Balance at end of period |
Allowance for doubtful accounts |  | $ | 1,943 |  |  | $ | 524 |  |  | $ | (414 | ) |  | $ | (182 | ) |  | $ | 1,871 |
Reserve for credit memos |  |  | 428 |  |  |  | 437 |  |  |  | (408 | ) |  |  | (2 | ) |  |  | 455 |
Slow-moving and obsolete inventory reserves |  |  | 9,183 |  |  |  | 2,477 |  |  |  | (1,509 | ) |  |  | 79 |  |  |  | 10,230 |
Accrued product warranty |  |  | 892 |  |  |  | 74 |  |  |  | (158 | ) |  |  | (94 | ) |  |  | 714 |
Foreign net operating loss tax carryforwards |  |  | 3,614 |  |  |  | 2,105 |  |  |  | (287 | ) |  |  | (223 | ) |  |  | 5,209 |

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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 -URI http://asc.fasb.org/topic&trid=2122369 + Details
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- References No definition available. + Details
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