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Statements of Consolidated Shareholders' Equity - USD ($) $ in Thousands | Total | Common Shares [Member] | Common Shares Issued to Rabbi Trust [Member] | Deferred Compensation Liability [Member] | Paid In Capital [Member] | Retained Earnings [Member] | Treasury Stock [Member] | Cumulative Translation Adjustment [Member] | Unrecognized Pension Benefit Cost [Member] | Total Preformed Line Products, Company Equity [Member] | Noncontrolling Interests [Member]
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2016 | $ 223,543 | $ 12,508 | $ (12,054) | $ 12,054 | $ 24,629 | $ 303,415 | $ (59,640) | $ (51,495) | $ (5,874) | $ 223,543 | $ 0
Net income | 12,654 |  |  |  |  | 12,654 |  |  |  | 12,654 |
Foreign currency translation adjustment | 10,070 |  |  |  |  |  |  | 10,070 |  | 10,070 |
Recognized net actuarial loss (gain), net of tax provision of $199, $139 and $123 for 2017, 2018 and 2019 respectively | 269 |  |  |  |  |  |  |  | 269 | 269 |
(Gain) loss on unfunded pension obligations, net of tax provision (benefit) of $247, $77 and $60 for 2017, 2018 and 2019 respectively | (410) |  |  |  |  |  |  |  | (410) | (410) |
Total comprehensive income | 22,583 |  |  |  |  |  |  |  |  | 22,583 | 0
Share-based compensation | 2,824 |  |  |  | 3,055 | (231) |  |  |  | 2,824 |
Purchase of 121,626, 52,318 and 120,848 common shares for 2017, 2018 and 2019 respectively | (8,475) |  |  |  |  |  | (8,475) |  |  | (8,475) |
Issuance of 42,080, 34,521 and 88,377 common shares for 2017, 2018 and 2019 respectively | 2,135 | 85 |  |  | 2,050 |  |  |  |  | 2,135 |
Common shares distributed from rabbi trust of 8,255, 19,396 and 1,989 for 2017, 2018 and 2019 net | 0 |  | 220 | (220) |  |  |  |  |  | 0 |
Cash dividends declared $.80, $.80 and $.80 per share for 2017, 2018 and 2019 respectively | (4,073) |  |  |  |  | (4,073) |  |  |  | (4,073) |
Ending Balance at Dec. 31, 2017 | 238,537 | 12,593 | (11,834) | 11,834 | 29,734 | 311,765 | (68,115) | (41,425) | (6,015) | 238,537 | 0
Net income | 26,581 |  |  |  |  | 26,581 |  |  |  | 26,581 |
Foreign currency translation adjustment | (12,285) |  |  |  |  |  |  | (12,285) |  | (12,285) |
Recognized net actuarial loss (gain), net of tax provision of $199, $139 and $123 for 2017, 2018 and 2019 respectively | 386 |  |  |  |  |  |  |  | 386 | 386 |
(Gain) loss on unfunded pension obligations, net of tax provision (benefit) of $247, $77 and $60 for 2017, 2018 and 2019 respectively | (244) |  |  |  |  |  |  | 0 | (244) | (244) |
Total comprehensive income | 14,438 |  |  |  |  |  |  |  |  | 14,438 | 0
Share-based compensation | 4,084 |  |  |  | 4,236 | (152) |  |  |  | 4,084 |
Purchase of 121,626, 52,318 and 120,848 common shares for 2017, 2018 and 2019 respectively | (4,165) |  |  |  |  |  | (4,165) |  |  | (4,165) |
Issuance of 42,080, 34,521 and 88,377 common shares for 2017, 2018 and 2019 respectively | 500 | 69 |  |  | 431 |  |  |  |  | 500 |
Common shares distributed from rabbi trust of 8,255, 19,396 and 1,989 for 2017, 2018 and 2019 net | 0 |  | 826 | (826) |  |  |  |  |  | 0 |
Cash dividends declared $.80, $.80 and $.80 per share for 2017, 2018 and 2019 respectively | (4,024) |  |  |  |  | (4,024) |  |  |  | (4,024) |
Ending Balance at Dec. 31, 2018 | 249,370 | 12,662 | (11,008) | 11,008 | 34,401 | 334,170 | (72,280) | (53,710) | (5,873) | 249,370 | 0
Net income | 23,336 |  |  |  |  | 23,303 |  |  |  | 23,303 | 33
Foreign currency translation adjustment | 2,028 |  |  |  |  |  |  | 2,028 |  | 2,028 |
Recognized net actuarial loss (gain), net of tax provision of $199, $139 and $123 for 2017, 2018 and 2019 respectively | 397 |  |  |  |  |  |  |  | 397 | 397 |
(Gain) loss on unfunded pension obligations, net of tax provision (benefit) of $247, $77 and $60 for 2017, 2018 and 2019 respectively | (195) |  |  |  |  |  |  | 0 | (195) | (195) |
Total comprehensive income | 25,566 |  |  |  |  |  |  |  |  | 25,533 | 33
Share-based compensation | 4,229 |  |  |  | 4,396 | (167) |  |  |  | 4,229 |
Purchase of 121,626, 52,318 and 120,848 common shares for 2017, 2018 and 2019 respectively | (6,826) |  |  |  |  |  | (6,826) |  |  | (6,826) |
Issuance of 42,080, 34,521 and 88,377 common shares for 2017, 2018 and 2019 respectively | 243 | 186 |  |  | 57 |  |  |  |  | 243 |
Common shares distributed from rabbi trust of 8,255, 19,396 and 1,989 for 2017, 2018 and 2019 net | 0 |  | 27 | (27) |  |  |  |  |  | 0 |
Cash dividends declared $.80, $.80 and $.80 per share for 2017, 2018 and 2019 respectively | (4,014) |  |  |  |  | (4,014) |  |  |  | (4,014) |
Ending Balance at Dec. 31, 2019 | $ 268,568 | $ 12,848 | $ (10,981) | $ 10,981 | $ 38,854 | $ 353,292 | $ (79,106) | $ (51,682) | $ (5,671) | $ 268,535 | $ 33

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