Preformed Line Products (PLPC) 10-Q 3 Aug 18 2018 Q2 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Aug. 01, 2018
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Trading Symbol	PLPC
Entity Registrant Name	PREFORMED LINE PRODUCTS CO
Entity Central Index Key	80,035
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding		5,036,748

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
ASSETS
Cash and cash equivalents	$ 41,395	$ 44,358
Accounts receivable, less allowances of $3,144 ($3,325 in 2017)	78,107	73,972
Inventories - net	83,212	77,886
Prepaids	5,369	3,434
Prepaid taxes	2,223	5,266
Other current assets	4,113	2,214
TOTAL CURRENT ASSETS	214,419	207,130
Property, plant and equipment - net	105,172	108,598
Intangibles - net	9,093	10,020
Goodwill	15,867	16,544
Deferred income taxes	8,023	7,774
Other assets	11,506	9,719
TOTAL ASSETS	364,080	359,785
LIABILITIES AND SHAREHOLDERS’ EQUITY
Trade accounts payable	28,240	25,141
Notes payable to banks	2,722	864
Current portion of long-term debt	1,448	1,448
Accrued compensation and amounts withheld from employees	13,431	11,461
Accrued expenses and other liabilities	12,532	14,686
Accrued profit-sharing and other benefits	4,195	6,284
Dividends payable	1,055	1,046
Income taxes payable	1,199	1,903
TOTAL CURRENT LIABILITIES	64,822	62,833
Long-term debt, less current portion	37,308	34,598
Unfunded pension obligation	10,006	10,664
Deferred income taxes	1,833	2,090
Other noncurrent liabilities	10,582	11,063
Shareholders’ equity:
Common shares - $2 par value per share, 15,000,000 shares authorized, 5,036,978 and 5,038,207 issued and outstanding, at June 30, 2018 and December 31, 2017, respectively	12,639	12,593
Common shares issued to rabbi trust, 269,358 and 289,026 shares at June 30, 2018 and December 31, 2017, respectively	(10,988)	(11,834)
Deferred compensation liability	10,988	11,834
Paid-in capital	31,657	29,734
Retained earnings	321,954	311,765
Treasury shares, at cost, 1,282,476 and 1,258,069 shares at June 30, 2018 and December 31, 2017, respectively	(69,929)	(68,115)
Accumulated other comprehensive loss	(56,792)	(47,440)
TOTAL SHAREHOLDERS’ EQUITY	239,529	238,537
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 364,080	$ 359,785

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Statement Of Financial Position [Abstract]
Accounts receivable, less allowances	$ 3,144	$ 3,325
Common stock, par value	$ 2	$ 2
Common stock, shares authorized	15,000,000	15,000,000
Common stock, shares issued	5,036,978	5,038,207
Common stock, shares outstanding	5,036,978	5,038,207
Common stock, shares issued to rabbi trust	269,358	289,026
Treasury stock shares	1,282,476	1,258,069

Statements of Consolidated Inco

Statements of Consolidated Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Net sales	$ 108,915	$ 97,512	$ 207,054	$ 182,081
Cost of products sold	73,712	67,839	140,333	127,743
GROSS PROFIT	35,203	29,673	66,721	54,338
Costs and expenses
Selling	9,471	8,626	18,332	16,910
General and administrative	11,288	10,772	22,203	21,101
Research and engineering	3,646	3,612	7,307	7,301
Other operating expense - net	1,465	369	1,800	474
Total costs and expenses	25,870	23,379	49,642	45,786
OPERATING INCOME	9,333	6,294	17,079	8,552
Other income (expense)
Interest income	134	160	229	264
Interest expense	(348)	(277)	(628)	(577)
Other income - net	105	81	173	137
Total other income (expense)	(109)	(36)	(226)	(176)
INCOME BEFORE INCOME TAXES	9,224	6,258	16,853	8,376
Income taxes	2,489	2,102	4,590	2,702
NET INCOME	$ 6,735	$ 4,156	$ 12,263	$ 5,674
BASIC EARNINGS PER SHARE
Net income	$ 1.34	$ 0.81	$ 2.43	$ 1.11
DILUTED EARNINGS PER SHARE
Net income	1.33	0.81	2.42	1.11
Cash dividends declared per share	$ 0.20	$ 0.20	$ 0.40	$ 0.40
Weighted-average number of shares outstanding - basic	5,044	5,116	5,045	5,117
Weighted-average number of shares outstanding - diluted	5,064	5,127	5,064	5,132

Statements of Consolidated Comp

Statements of Consolidated Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Comprehensive Income Net Of Tax [Abstract]
Net income	$ 6,735	$ 4,156	$ 12,263	$ 5,674
Other comprehensive income, net of tax
Foreign currency translation adjustment	(13,367)	2,810	(9,535)	8,282
Recognized net actuarial gain (net of tax provision of $29 and $49 for the three months ended June 30, 2018 and 2017, respectively, and net of tax provision of $59 and $93 for the six months ended June 30, 2018 and 2017, respectively.)	92	83	183	155
Other comprehensive income (loss), net of tax	(13,275)	2,893	(9,352)	8,437
Comprehensive income (loss)	$ (6,540)	$ 7,049	$ 2,911	$ 14,111

Statements of Consolidated Com6

Statements of Consolidated Comprehensive Income (Loss) (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Comprehensive Income Net Of Tax [Abstract]
Net of tax provision on recognized net actuarial gain	$ 29	$ 49	$ 59	$ 93

Statements of Consolidated Cash

Statements of Consolidated Cash Flows (Unaudited) - USD ($) $ in Thousands		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017
OPERATING ACTIVITIES
Net income		$ 12,263	$ 5,674
Adjustments to reconcile net income to net cash provided by (used in) operations:
Depreciation and amortization		6,524	5,873
Provision for accounts receivable allowances		575	777
Provision for inventory reserves		1,455	722
Deferred income taxes		(462)	(790)
Share-based compensation expense		1,717	1,140
Gain on sale of property and equipment		(99)	(13)
Other - net		54	276
Changes in operating assets and liabilities
Accounts receivable		(7,595)	(15,284)
Inventories		(10,280)	539
Trade accounts payable and accrued liabilities		3,732	2,035
Income taxes - net		2,305	2,714
Other - net		(2,510)	(1,644)
NET CASH PROVIDED BY OPERATING ACTIVITIES		7,679	2,019
INVESTING ACTIVITIES
Capital expenditures		(5,573)	(4,554)
Proceeds from the sale of property and equipment		3	1
Purchase of marketable securities		(4,690)	0
Proceeds from marketable securities		2,953	0
Purchase of company owned life insurance policy		(2,953)	0
Fixed-term deposits		0	6,923
NET CASH (USED IN) PROVIDED BY INVESTING ACTIVITIES		(10,260)	2,370
FINANCING ACTIVITIES
Increase in notes payable to banks		2,055	2
Proceeds from the issuance of long-term debt		35,272	25,038
Payments of long-term debt		(32,430)	(31,471)
Dividends paid		(2,065)	(2,092)
Proceeds from issuance of common shares		252	0
Purchase of common shares for treasury		(110)	(238)
Purchase of common shares for treasury from related parties		(1,705)	(2)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES		1,269	(8,763)
Effects of exchange rate changes on cash and cash equivalents		(2,570)	1,642
Net decrease in cash, cash equivalents and restricted cash		(3,882)	(2,732)
Cash, cash equivalents and restricted cash at beginning of year		45,579	32,540
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	[1]	$ 41,697	$ 29,808
[1]	Includes restricted cash of $.3 million at June 30, 2018 and $1.2 million at December 31, 2017. For further information regarding restricted cash, refer to Note O, “Debt Arrangements.”

Statements of Consolidated Cas8

Statements of Consolidated Cash Flows (Unaudited) (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Statement Of Cash Flows [Abstract]
Restricted cash	$ 0.3	$ 1.2

Basis of Presentation

Basis of Presentation	6 Months Ended
	Jun. 30, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Basis of Presentation	NOTE A – BASIS OF PRESENTATION The accompanying unaudited consolidated financial statements of Preformed Line Products Company and subsidiaries (the “Company” or “PLPC”) have been prepared in accordance with United States of America (U.S.) generally accepted accounting principles (GAAP) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. The preparation of these consolidated financial statements requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and the accompanying notes. Actual results could differ from these estimates. In the opinion of management, these consolidated financial statements contain all estimates and adjustments, consisting of normal recurring accruals, required to fairly present the financial position, results of operations, and cash flows for the interim periods. Operating results for the three and six months ended June 30, 2018 are not necessarily indicative of the results to be expected for the full-year ending December 31, 2018. The Consolidated Balance Sheet at December 31, 2017 has been derived from the audited consolidated financial statements but does not include all of the information and notes required by U.S. GAAP for complete financial statements. For further information, refer to the consolidated financial statements and notes to consolidated financial statements included in the Company’s 2017 Annual Report on Form 10-K filed on March 9, 2018 with the Securities and Exchange Commission.

Revenue

Revenue	6 Months Ended
	Jun. 30, 2018
Revenue From Contract With Customer [Abstract]
Revenue	NOTE B – REVENUE Revenue recognition Net sales include products and shipping and handling charges, net of estimates for product returns. Revenue is measured as the amount of consideration the Company expects to receive in exchange for transferring products. All revenue is recognized when the Company satisfies the performance obligations under the contract and control of the product is transferred to the customer, primarily based on shipping terms. Revenue for shipping and handling charges are recognized at the time the products are shipped to, delivered to or picked up by the customer. The Company estimates product returns based on historical return rates. Disaggregated revenue The Company’s revenues by segment and product type are as follows: Three Months Ended June 30, 2018 Product Type PLP-USA The Americas EMEA Asia-Pacific Consolidated Energy 57 % 77 % 75 % 70 % 68 % Communications 36 19 6 4 19 Special Industries 7 4 19 26 13 Total 100 % 100 % 100 % 100 % 100 % Six Months Ended June 30, 2018 Product Type PLP-USA The Americas EMEA Asia-Pacific Consolidated Energy 58 % 77 % 78 % 74 % 69 % Communications 36 19 6 5 20 Special Industries 6 4 16 21 11 Total 100 % 100 % 100 % 100 % 100 %

Other Financial Statement Infor

Other Financial Statement Information	6 Months Ended
	Jun. 30, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Other Financial Statement Information	NOTE C – OTHER FINANCIAL STATEMENT INFORMATION Inventories – net June 30, 2018 December 31, 2017 Raw materials $ 42,830 $ 42,712 Work-in-process 10,469 9,609 Finished Goods 38,060 33,780 91,359 86,101 Excess of current cost over LIFO cost (3,399 ) (2,991 ) Noncurrent portion of inventory (4,748 ) (5,224 ) $ 83,212 $ 77,886 Cost of inventories for certain material is determined using the last-in-first-out (LIFO) method and totaled approximately $26.7 million at June 30, 2018 and $25.1 million at December 31, 2017. An actual valuation of inventories under the LIFO method can be made only at the end of the year based on the inventory levels and costs at that time. Accordingly, interim LIFO calculations are based on management’s estimates of expected year-end inventory levels and costs. Because these estimates are subject to change and may be different than the actual inventory levels and costs at the end of the year, interim results are subject to the final year-end LIFO inventory valuation. During the three month and six-month periods ended June 30, 2018, the net change in LIFO inventories resulted in $.2 million and $.4 million of expense, respectively, to Income before income taxes. During the three month and six-month periods ended June 30, 2017, the net change in LIFO inventories resulted in a less than $.1 million benefit and a less than $.1 million of expense, respectively, to Income before income taxes. Noncurrent inventory is included in Other assets on the Consolidated Balance Sheets. Property, plant and equipment—net Major classes of Property, plant and equipment are stated at cost and were as follows: June 30, 2018 December 31, 2017 Land and improvements $ 12,582 $ 13,141 Buildings and improvements 74,917 75,941 Machinery, equipment and aircraft 168,522 166,999 Construction in progress 3,781 5,124 259,802 261,205 Less accumulated depreciation (154,630 ) (152,607 ) $ 105,172 $ 108,598 Legal proceedings In the course of business, the Company is subject to a variety of claims and lawsuits, including, but not limited to, litigation relating to employment, workers’ compensation, products liability, environmental and intellectual property. The ultimate outcomes of these matters are not predictable with certainty. The Company has liability insurance to cover many of these claims. The Company and its subsidiaries Helix Uniformed Ltd. (“Helix”) and Preformed Line Products (Canada) Limited (“PLPC Canada”), were each named, jointly and severally, with each of SNC-Lavalin ATP, Inc. (“SNC ATP”), HD Supply Canada Inc., by its trade names HD Supply Power Solutions and HD Supply Utilities (“HD Supply”), and Anixter Power Solutions Canada Inc. (the corporate successor to HD Supply, “Anixter” and, together with the Company, PLPC Canada, Helix, SNC ATP and HD Supply, the “Defendants”) in a complaint filed by Altalink, L.P. (the “Plaintiff”) in the Court of Queen’s Bench of Alberta in Alberta, Canada in November 2016 (the “Complaint”). The Complaint states that Plaintiff engaged SNC ATP to design, engineer, procure and construct numerous power distribution and transmission facilities in Alberta (the “Projects”) and that through SNC ATP and HD Supply (now Anixter), spacer dampers manufactured by Helix were procured and installed in the Projects. The Complaint alleges that the spacer dampers have and may continue to become loose, open and detach from the conductors, resulting in damage and potential injury and a failure to perform the intended function of providing spacing and damping to the Project. The Plaintiffs were initially seeking an estimated $56.0 million in damages jointly and severally from the Defendants, representing the costs of monitoring and replacing the spacer dampers and remediating property damage, due to alleged defects in the design and construction of, and supply of materials for, the Projects by SNC ATP and HD Supply/Anixter and in the design of the spacer dampers by Helix. The Plaintiffs reduced their demand for damages to $29.4 million on June 1, 2018. The Company believes the claims against it are without merit and intends to vigorously defend against such claims. However, the Company is unable to predict the outcome of this case and, if determined adversely to the Company, it could have a material effect on the Company’s financial results. The Company is not a party to any other pending legal proceedings that the Company believes would, individually or in the aggregate, have a material adverse effect on its financial condition, results of operations or cash flows.

Pension Plans

Pension Plans	6 Months Ended
	Jun. 30, 2018
Compensation And Retirement Disclosure [Abstract]
Pension Plans	NOTE D – PENSION PLANS The Company uses a December 31 measurement date for the Preformed Line Products Company Employees’ Retirement Plan (the “Plan”). Net periodic pension cost for this plan included the following components: Three Months Ended June 30 Six Months Ended June 30 2018 2017 2018 2017 Service cost $ 84 $ 72 $ 166 $ 127 Interest cost 333 363 666 729 Expected return on plan assets (496 ) (476 ) (991 ) (951 ) Recognized net actuarial loss 121 131 242 248 Net periodic pension cost $ 42 $ 90 $ 83 $ 153 A $.5 million contribution was made to the Plan during the six months ended June 30, 2018. The Company will contribute $.1 million of additional funding to the Plan during the second half of 2018 and is continuing to evaluate the benefits of contributing additional funds to the Plan during the remainder of the current fiscal year.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income ("AOCI")	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
Accumulated Other Comprehensive Income ("AOCI")	NOTE E – ACCUMULATED OTHER COMPREHENSIVE INCOME (“AOCI”) The following tables set forth the total changes in AOCI by component, net of tax: Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 Defined pension plan activity Currency Translation Adjustment Total Defined benefit pension plan activity Currency Translation Adjustment Total Balance at April 1 $ (5,923 ) $ (37,594 ) $ (43,517 ) $ (5,802 ) $ (46,023 ) $ (51,825 ) Other comprehensive income before reclassifications: (Loss) gain on foreign currency translation adjustment 0 (13,367 ) (13,367 ) 0 2,810 2,810 Amounts reclassified from AOCI: Amortization of defined benefit pension actuarial gain (a) 92 0 92 83 0 83 Net current period other comprehensive income (loss) 92 (13,367 ) (13,275 ) 83 2,810 2,893 Balance at June 30 $ (5,831 ) $ (50,961 ) $ (56,792 ) $ (5,719 ) $ (43,213 ) $ (48,932 ) Six Months Ended June 30, 2018 Six Months Ended June 30, 2017 Defined pension plan activity Currency Translation Adjustment Total Defined benefit pension plan activity Currency Translation Adjustment Total Balance at January 1 $ (6,014 ) $ (41,426 ) $ (47,440 ) $ (5,874 ) $ (51,495 ) $ (57,369 ) Other comprehensive income before reclassifications: (Loss) gain on foreign currency translation adjustment 0 (9,535 ) (9,535 ) 0 8,282 8,282 Amounts reclassified from AOCI: Amortization of defined benefit pension actuarial loss (a) 183 0 183 155 0 155 Net current period other comprehensive income (loss) 183 (9,535 ) (9,352 ) 155 8,282 8,437 Balance at June 30 $ (5,831 ) $ (50,961 ) $ (56,792 ) $ (5,719 ) $ (43,213 ) $ (48,932 ) (a) This AOCI component is included in the computation of net periodic pension costs.

Computation of Earnings Per Sha

Computation of Earnings Per Share	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Computation of Earnings Per Share	NOTE F – COMPUTATION OF EARNINGS PER SHARE Basic earnings per share were computed by dividing Net income by the weighted-average number of common shares outstanding for each respective period. Diluted earnings per share were calculated by dividing Net income by the weighted-average of all potentially dilutive common stock that was outstanding during the periods presented. The calculation of basic and diluted earnings per share for the three and six months ended June 30, 2018 and 2017 was as follows: Three Months Ended June 30 Six Months Ended June 30 2018 2017 2018 2017 Numerator Net income $ 6,735 $ 4,156 $ 12,263 $ 5,674 Denominator Determination of shares Weighted-average common shares outstanding 5,044 5,116 5,045 5,117 Dilutive effect - share-based awards 20 11 19 15 Diluted weighted-average common shares outstanding 5,064 5,127 5,064 5,132 Earnings per common share Basic $ 1.34 $ 0.81 $ 2.43 $ 1.11 Diluted $ 1.33 $ 0.81 $ 2.42 $ 1.11 For both the three and six-month periods ended June 30, 2018, no stock options were excluded from the calculation of diluted earnings per share as there was no anti-dilutive effect. For the three and six-month periods ended June 30, 2017, 48,498 and 47,679 stock options, respectively, were excluded from the calculation of diluted earnings per share as the effect would have been anti-dilutive.

Goodwill and Other Intangibles

Goodwill and Other Intangibles	6 Months Ended
	Jun. 30, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangibles	NOTE G – GOODWILL AND OTHER INTANGIBLES The Company’s finite and indefinite-lived intangible assets consist of the following: June 30, 2018 December 31, 2017 Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Finite-lived intangible assets Patents $ 4,806 $ (4,802 ) $ 4,806 $ (4,791 ) Land use rights 1,151 (203 ) 1,199 (201 ) Trademarks 1,716 (1,190 ) 1,770 (1,166 ) Technology 3,027 (1,263 ) 3,149 (1,215 ) Customer relationships 11,984 (6,133 ) 12,350 (5,881 ) $ 22,684 $ (13,591 ) $ 23,274 $ (13,254 ) Indefinite-lived intangible assets Goodwill $ 15,867 $ 16,544 The aggregate amortization expense for other intangibles with finite lives for the three and six months ended June 30, 2018 was $.3 million and $.5 million, respectively. The aggregate amortization expense for other intangibles with finite lives for the three and six months ended June 30, 2017 was also $.3 million and $.5 million, respectively. Amortization expense is estimated to be $.5 million for the remaining period of 2018, $.9 million for both 2019 and 2020 and $.8 million for both 2021 and 2022. The weighted-average remaining amortization period is approximately 16.4 years. The weighted-average remaining amortization period by intangible asset class is as follows: patents, 7.5 years; land use rights, 57.4 years; trademarks, 8.9 years; technology, 13.4 years; and customer relationships, 11.9 years. The Company’s measurement date for its annual impairment test for goodwill is October 1st of each year. The Company performs its annual impairment test for goodwill utilizing a discounted cash flow methodology, market comparables, and an overall market capitalization reasonableness test in computing fair value by reporting unit. The Company then compares the fair value of the reporting unit with its carrying value to assess if goodwill has been impaired. Based on the assumptions as to growth, discount rates and the weighting used for each respective valuation methodology, results of the valuations could be significantly different. However, the Company believes that the methodologies and weightings used are reasonable and result in appropriate fair values of the reporting units. The Company’s valuation method uses Level 3 inputs under the fair value hierarchy. The Company’s only intangible asset with an indefinite life is goodwill. The changes in the carrying amount of goodwill, by segment, for the six months ended June 30, 2018 are as follows: USA The Americas EMEA Asia-Pacific Total Balance at January 1, 2018 $ 3,078 $ 4,292 $ 1,495 $ 7,679 $ 16,544 Currency translation 0 (205 ) (117 ) (355 ) (677 ) Balance at June 30, 2018 $ 3,078 $ 4,087 $ 1,378 $ 7,324 $ 15,867

Share-Based Compensation

Share-Based Compensation	6 Months Ended
	Jun. 30, 2018
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Share-Based Compensation	NOTE H – SHARE-BASED COMPENSATION The 1999 Stock Option Plan Activity in the Company’s 1999 Stock Option Plan for the six months ended June 30, 2018 was as follows: Number of Shares Weighted Average Exercise Price per Share Weighted Average Remaining Contractual Term (Years) Aggregate Intrinsic Value (000's) Outstanding at January 1, 2018 750 $ 39.10 Granted 0 $ 0.00 Exercised 0 $ 0.00 Forfeited 0 $ 0.00 Outstanding (exercisable and vested) at June 30, 2018 750 $ 39.10 1.3 $ 37 There were no stock options exercised under this Plan during either of the six months ended June 30, 2018 or 2017. As all stock options from the 1999 Stock Option Plan are fully vested, the Company recorded no compensation expense related to stock options for the six months ended June 30, 2018 and 2017. Long Term Incentive Plan of 2008 and 2016 Incentive Plan The Company maintains an equity award program to give the Company a competitive advantage in attracting, retaining, and motivating officers, employees and directors and to provide an incentive to those individuals to increase shareholder value through long-term incentives directly linked to the Company’s performance. Under the Preformed Line Products Company Long Term Incentive Plan of 2008 (the “LTIP”), certain employees, officers, and directors were eligible to receive awards of options, restricted shares and restricted share units (RSUs). The total number of Company common shares reserved for awards under the LTIP was 900,000, of which 800,000 common shares were reserved for RSUs and 100,000 common shares have been reserved for share options. The LTIP was terminated and replaced with the Preformed Line Products Company 2016 Incentive Plan (the “Incentive Plan”) in May 2016 upon approval by the Company’s Shareholders at the 2016 Annual Meeting of Shareholders on May 10, 2016. No further awards will be made under the LTIP and previously granted awards remain outstanding in accordance with their terms. Under the Incentive Plan, certain employees, officers, and directors will be eligible to receive awards of options, restricted shares and RSUs. The total number of Company common shares reserved for awards under the Incentive Plan is 1,000,000 of which 900,000 common shares have been reserved for restricted share awards and 100,000 common shares have been reserved for share options. The Incentive Plan expires on May 10, 2026. Restricted Share Units For the regular annual grants, a portion of the RSUs is subject to time-based cliff vesting and a portion is subject to vesting based upon the Company’s performance over a set period for all participants except the CEO. All of the CEO’s regular annual RSUs are subject to vesting based upon the Company’s performance over a set-year period. The RSUs are offered at no cost to the employees. The fair value of RSUs is based on the market price of a common share on the grant date and the shares are restricted until they vest. Dividends declared are accrued in cash. A summary of the RSUs outstanding under the LTIP for the six months ended June 30, 2018 is as follows: Restricted Share Units Performance and Service Required (1) Service Required Total Restricted Share Units Weighted-Average Grant-Date Fair Value Nonvested as of January 1, 2018 200,572 18,214 218,786 $ 52.68 Granted 63,122 8,155 71,277 73.86 Vested (19,277 ) 0 (19,277 ) 45.85 Forfeited (30,793 ) 0 (30,793 ) 45.85 Nonvested as of June 30, 2018 213,624 26,369 239,993 $ 53.89 (1) Nonvested performance-based RSUs are reflected above at the maximum performance achievement level. For time-based RSUs, the Company recognizes stock-based compensation expense on a straight-line basis over the requisite service period of the award in General and administrative expense in the accompanying Statements of Consolidated Income. For the performance-based RSUs, the number of RSUs in which the participants will vest depends on the Company’s level of performance measured by growth in either operating or pre-tax income and sales growth over a requisite performance period. Depending on the extent to which the performance criterions are satisfied under the LTIP and the Incentive Plan, the participants are eligible to earn common shares over the vesting period. RSUs forfeited in 2018 are those from the 2015 grants for which pre-tax income and sales growth performance were not achieved. Performance-based compensation expense for the three and six-month periods ended June 30, 2018 was $.7 million and $1.4 million, respectively. Performance-based compensation expense for the three and six-month periods ended June 30, 2017 was $.4 million and $.9 million, respectively. As of June 30, 2018, the remaining compensation expense of $4.5 million for outstanding performance-based RSU’s is expected to be recognized over a period of approximately 1.9 years. In the event of a Change in Control (as defined in the LTIP and the Incentive Plan), vesting of the RSUs will be accelerated and all restrictions will lapse. Unvested performance-based awards will vest on a target potential payout. To satisfy the vesting of its RSU awards, the Company has reserved new shares from its authorized but unissued shares. Any additional awards granted will also be issued from the Company’s authorized but unissued shares. Share Option Awards The LTIP permitted and now the Incentive Plan permits the grant of 100,000 options to buy common shares of the Company to certain employees at not less than fair market value of the shares on the date of grant. Options issued to date under the LTIP and the Incentive Plan vest 50% after one year following the date of the grant, 75% after two years, and 100% after three years, and expire from five to ten years from the date of grant. Shares issued as a result of stock option exercises will be funded with the issuance of new shares. The Company utilizes the Black-Scholes option pricing model for estimating fair values of options. The Black-Scholes model requires assumptions regarding the volatility of the Company’s stock, the expected life of the stock award and the Company’s dividend yield. The Company utilizes historical data in determining these assumptions. The risk-free rate for periods within the contractual life of the option is based on the U.S. zero coupon Treasury yield in effect at the time of grant. There were no options granted for the six-month period ended June 30, 2018 and 5,000 options were granted for the six-month period ended June 30, 2017. Stock option activity under the Company’s LTIP for six months ended June 30, 2018 was as follows: Number of Shares Weighted Average Exercise Price per Share Weighted Average Remaining Contractual Term (Years) Aggregate Intrinsic Value (000's) Outstanding at January 1, 2018 29,250 $ 56.84 Granted 0 $ 0.00 Exercised (1,500 ) $ 52.81 Forfeited 0 $ 0.00 Outstanding (vested and expected to vest) at June 30, 2018 27,750 $ 57.05 6.7 $ 880 Exercisable at June 30, 2018 23,125 $ 59.44 6.1 $ 678 There were 1,500 stock options exercised during the six-month period ended June 30, 2018. There were no shares exercised during the six-month period ended June 30, 2017. For both three and six-month periods ended June 30, 2018, the Company recorded compensation expense related to the stock options currently vested of less than $.1 million. For the same periods ended June 30, 2017, the Company recorded compensation expense related to the stock options currently vested of less than $.1 million. The total compensation cost related to nonvested awards not yet recognized at June 30, 2018 is expected to be less than $.1 million over a weighted-average period of approximately 1.6 years. Deferred Compensation Plan The Company maintains a trust, commonly referred to as a rabbi trust, in connection with the Company’s deferred compensation plan. This plan allows for two deferrals. First, Directors make elective deferrals of Director fees payable and held in the rabbi trust. The deferred compensation plan allows the Directors to elect to receive Director fees in common shares of the Company at a later date instead of fees paid each quarter in cash. Second, this plan allows certain Company employees to defer restricted shares or RSUs for future distribution in the form of common shares. Assets of the rabbi trust are consolidated, and the value of the Company’s common shares held in the rabbi trust is classified in Shareholders’ equity and generally accounted for in a manner similar to treasury stock. The Company recognizes the original amount of the deferred compensation (fair value of the deferred stock award at the date of grant) as the basis for recognition in common shares issued to the rabbi trust. Changes in the fair value of amounts owed to certain employees or Directors are not recognized as the Company’s deferred compensation plan does not permit diversification and must be settled by the delivery of a fixed number of the Company’s common shares. As of June 30, 2018, 269,358 shares have been deferred and are being held in the rabbi trust.

Fair Value of Financial Assets

Fair Value of Financial Assets and Liabilities	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Fair Value of Financial Assets and Liabilities	NOTE I – FAIR VALUE OF FINANCIAL ASSETS AND LIABILITIES The Company measures and records certain assets and liabilities at fair value. A fair value hierarchy is used for those assets and liabilities measured at fair value that distinguishes between assumptions based on market data, (observable inputs), and the Company’s assumptions (unobservable inputs). The hierarchy consists of the following three levels: Level 1 Inputs to the valuation methodology are unadjusted quoted prices for identical assets or liabilities in active markets. Level 2 Inputs other than Level 1 inputs that are either directly or indirectly observable, which may include: o Quoted prices for similar assets in active markets; o Quoted prices for identical or similar assets or liabilities in inactive markets; o Inputs other than quoted prices that are observable for the asset or liability; and o Inputs that are derived principally from or corroborated by observable market data by correlation or other means. Level 3 Inputs to the valuation methodology are unobservable and developed using estimates and assumptions developed by the Company which reflect those that a market participant would use. The following table summarizes the Company’s assets and liabilities, recorded and measured at fair value, in the consolidated balance sheets as of June 30, 2018 (there were no financial instruments measured at fair value at December 31, 2017): Description Balance as of June 30, 2018 Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets: Marketable securities $ 1,737 $ 1,737 $ 0 $ 0 Total Assets $ 1,737 $ 1,737 $ 0 $ 0 Liabilities: Supplemental profit sharing plan 4,632 0 4,632 0 Total Liabilities $ 4,632 $ 0 $ 4,632 $ 0 During the six months ended June 30, 2018, the Company invested $4.7 million in marketable securities, principally equity-based mutual funds, to mitigate the risk associated with the investment returns on the Company’s Supplemental Profit Sharing Plan discussed below. These marketable securities are comprised of available-for-sale securities. During the quarter ended June 30, 2018, the Company sold $3.0 million from the available-for-sale securities to fund a Corporate Owned Life Insurance Policy (“COLI”), resulting in the $1.7 million of available-for-sale securities reported. The balances are reported at fair value within Other assets on the Company’s consolidated balance sheet as of June 30, 2018. Changes in the fair value of the securities of less than $.1 million were recognized within Other income, net within the consolidated statements of income for the six-month period ended June 30, 2018. At June 30, 2018, the cash surrender value of the COLI was $3.0 million and is recorded in Other assets on the Company’s consolidated balance sheet. The Company has a non-qualified Supplemental Profit Sharing Plan for its executives. The liability for this unfunded Supplemental Profit Sharing Plan was $4.6 million and $4.8 million at June 30, 2018 and December 31, 2017, respectively, and is recorded within Other noncurrent liabilities on the Company’s consolidated balance sheets. During January 2018, the Company amended the Supplemental Profit Sharing Plan to allow the participants the ability to hypothetically invest their proportionate award into various investment options, which primarily includes mutual funds. The company then credits earnings, gains and losses to the participants’ deferred compensation account balances based on the investments selected by the participants. The Company measures the fair value of the Supplemental Profit Sharing Plan liability using the market values of the participants’ underlying investment accounts.

Recently Adopted Accounting Pro

Recently Adopted Accounting Pronouncements	6 Months Ended
	Jun. 30, 2018
Accounting Changes And Error Corrections [Abstract]
Recently Adopted Accounting Pronouncements	NOTE J – RECENTLY ADOPTED ACCOUNTING PRONOUNCEMENTS In March 2018, the Financial Accounting Standards Board (“ FASB”) issued Accounting Standards Update (“A In March 2017, the FASB issued ASU 2017-07, “Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost,” which requires that an employer report the service cost component in the same line item or items as other compensation costs arising from services rendered by the pertinent employees during the period. The other components of net benefit cost are required to be presented in the income statement separately from the service cost component and outside a subtotal of income from operations, if one is presented. The Company adopted ASU 2017-07 as of January 1, 2018. The adoption did not have a material impact on the Company’s consolidated financial statements. In November 2016, the FASB issued ASU 2016-18, “Statement of Cash Flows (Topic 230): Restricted Cash.” The amendments in this Update require that a statement of cash flows explain the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. The Company adopted ASU 2016-18 as of January 1, 2018 using a retrospective transition method to each period presented. The cash, cash equivalents and restricted cash balance on the Company’s consolidated cash flow includes $.3 million and $1.2 million of restricted cash as of June 30, 2018 and December 31, 2017, respectively. Restricted cash is included in Other assets on the Company’s consolidated balance sheet in each period presented. The adoption of ASU 2016-18 did not have a material impact on the Company’s consolidated financial statements. Refer to Note O “Debt Arrangements” for additional details regarding the Company’s restricted cash. In October 2016, the FASB issued ASU 2016-16, “Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory.” ASU 2016-16 modifies the recognition of income tax expense resulting from intra-entity transfers of assets other than inventory. Pursuant to this amendment, entities should recognize the income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. This amendment eliminates the exception for an intra-entity transfer of assets other than inventory. The Company adopted ASU 2016-16 as of January 1, 2018 with no material impact on the Company’s consolidated financial statements. In January 2016, the FASB issued ASU 2016-01, “Recognition and Measurement of Financial Assets and Financial Liabilities”, which changes how companies recognize, measure, present and make disclosures about certain financial assets and financial liabilities. Under this guidance, entities have to measure certain equity investments, including available-for-sale securities, at fair value and recognize any changes in fair value in net income. ASU 2016-01 is effective for financial statements issued for fiscal years beginning after 15 December 2017, and interim periods therein. The Company adopted ASU 2016-01 effective January 1, 2018. As discussed in Note I, the Company purchased $4.3 million of available-for-sale marketable securities during the three months ended March 31, 2018 and in April of 2018, sold $2.9 million of the available-for-sale marketable securities to fund a Corporate Owned Life Insurance Policy (“COLI”). The Company recognized less than $0.1 million of gains related to the change in the fair value of the marketable securities within Other income, net on the Company’s consolidated statements of income. Refer to Note I “Fair Value of Financial Assets and Liabilities” for additional details regarding the Company’s marketable securities. In May 2014, the FASB issued ASU 2014-09, “Revenue from Contracts with Customers (Topic 606),” or ASU 2014-09. ASU 2014-09 requires an entity to recognize revenue in a matter that depicts the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. To achieve that core principle, the amendment provides five steps that an entity should apply when recognizing revenue. The amendment also specifies the accounting of some costs to obtain or fulfill a contract with a customer and expands the disclosure requirements around contracts with customers. In August 2015, the FASB issued ASU No. 2015-14 deferring the effective date of the amendment to annual reporting periods beginning after December 15, 2017, including interim periods therein. The Company implemented changes to processes and controls to meet the standard’s reporting and disclosure requirements and adopted ASU 2014-09 as of January 1, 2018 using the modified retrospective transition method applied to contracts that were not yet completed at that date. Results for reporting periods beginning after January 1, 2018 are presented under Topic 606, while prior period amounts are not adjusted and continue to be presented based on the Company’s historic accounting policy. The cumulative impact of adopting ASU 2014-09 as of January 1, 2018 did not have a material impact on the Company’s consolidated financial statements. Further, the Company does not expect the impact of the adoption of ASU 2014-09 to be material to its consolidated financial statements on an ongoing basis. Refer to Note B “Revenue” for additional details regarding the Company’s revenue recognition policy.

New Accounting Standards to be

New Accounting Standards to be Adopted	6 Months Ended
	Jun. 30, 2018
Accounting Changes And Error Corrections [Abstract]
New Accounting Standards to be Adopted	NOTE K – NEW ACCOUNTING STANDARDS TO BE ADOPTED In February 2018, the FASB issued ASU 2018-02, “Income Statement (Topic 220), Reporting Comprehensive Income: Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income.” The FASB issued the update to provide amended guidance to allow a reclassification from Accumulated other comprehensive income to retained earnings for stranded tax effects resulting from the Tax Act. Additionally, under the new guidance an entity will be required to provide certain disclosures regarding stranded tax effects. The guidance is effective for fiscal years beginning after December 15, 2018, including interim periods within those years, and the guidance may be applied either in the period of adoption or retrospectively to each period (or periods) in which the effect of the change in the U.S. federal income tax rate in the Tax Act is recognized. Early adoption is permitted. The Company is currently assessing the impact, if any, that the ASU will have on the Company’s consolidated financial statements. In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842).” The amendments in this Update require the recognition of assets and liabilities arising from lease transactions on the balance sheet and the disclosure of key information about leasing arrangements. Accordingly, a lessee will recognize a lease asset for its right to use the underlying asset and a lease liability for the corresponding lease obligation. Both the asset and liability will initially be measured at the present value of the future minimum lease payments over the lease term. Subsequent measurement, including the presentation of expenses and cash flows, will depend on the classification of the lease as either a finance or an operating lease. Initial costs directly attributable to negotiating and arranging the lease will be included in the asset. For leases with a term of 12 months or less, a lessee can make an accounting policy election by class of underlying asset to not recognize an asset and corresponding liability. Lessees will also be required to provide additional qualitative and quantitative disclosures regarding the amount, timing and uncertainty of cash flows arising from leases. These disclosures are intended to supplement the amounts recorded in the financial statements and provide additional information about the nature of an organization’s leasing activities. The amendments in this Update are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018, with early adoption permitted. The Company is currently evaluating its population of leases and evaluating what impact its adoption will have to the presentation of the Company’s consolidated financial statements.

Segment Information

Segment Information	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
Segment Information	NOTE L – SEGMENT INFORMATION The following tables present a summary of the Company’s reportable segments for the three and six months ended June 30, 2018 and 2017. Financial results for the PLP-USA segment include the elimination of all segments’ intercompany profit in inventory. Three Months Ended June 30 Six Months Ended June 30 2018 2017 2018 2017 Net sales PLP-USA $ 42,665 $ 38,087 $ 82,107 $ 72,949 The Americas 18,008 16,827 37,555 33,396 EMEA 21,402 17,578 36,483 31,430 Asia-Pacific 26,840 25,020 50,909 44,306 Total net sales $ 108,915 $ 97,512 $ 207,054 $ 182,081 Intersegment sales PLP-USA $ 2,252 $ 3,012 $ 4,434 $ 6,019 The Americas 2,614 1,467 4,582 2,708 EMEA 506 285 840 600 Asia-Pacific 3,562 2,485 5,272 4,536 Total intersegment sales $ 8,934 $ 7,249 $ 15,128 $ 13,863 Income taxes PLP-USA $ 854 $ 463 $ 1,228 $ 41 The Americas 979 804 2,368 1,515 EMEA 421 375 659 578 Asia-Pacific 235 460 335 568 Total income taxes $ 2,489 $ 2,102 $ 4,590 $ 2,702 Net income (loss) PLP-USA $ 1,843 $ 949 $ 3,556 $ 317 The Americas 2,657 1,789 5,800 3,574 EMEA 1,561 669 1,925 1,288 Asia-Pacific 674 749 982 495 Total net income $ 6,735 $ 4,156 $ 12,263 $ 5,674 June 30, 2018 December 31, 2017 Assets PLP-USA $ 124,025 $ 116,484 The Americas 67,729 70,720 EMEA 60,892 62,524 Asia-Pacific 111,434 110,057 Total identifiable assets $ 364,080 $ 359,785

Income Taxes

Income Taxes	6 Months Ended
	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income Taxes	NOTE M – INCOME TAXES On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the “Tax Act”). The Tax Act makes broad and complex changes to the U.S. tax code including but not limited to (1) requiring a one-time transition tax (“Transition Tax”) on certain unrepatriated earnings at December 31, 2017 of foreign subsidiaries that is payable over eight years; (2) reduction of the U.S. federal statutory rate from 35% to 21% effective January 1, 2018; (3) the creation of the base erosion anti-abuse tax (BEAT), a new minimum tax; (4) a general elimination of U.S. federal income taxes on dividends from foreign subsidiaries; (5) a new provision, Global Intangible Low-Taxed Income (“GILTI”), which ends deferral of taxation on a significant portion of foreign earnings; (6) a new limitation on deductible interest expense; (7) the repeal of the domestic production activity deduction; (8) more restrictive limitations on the deductibility of certain executive compensation; (9) a deduction for Foreign Derived Intangible Income (“FDII”), an incentive for the development of intangibles in the U.S.; and (10) additional limitations on the use of foreign tax credits to reduce the U.S. income tax liability. ASC 740 , , As a result of the application of SAB 118, the Company recorded provisional amounts related to the reduction of its deferred tax assets and liabilities resulting from the tax rate reduction from 35% to 21% and for the Transition Tax at December 31, 2017. The Company has not made any material changes to these provisional amounts during the six-month period ending June 30, 2018. As the Company completes its analysis of the Tax Act, collects and prepares necessary data, and interprets any additional guidance issued by the U.S. Treasury Department, the IRS, and other standard-setting bodies, it will make additional adjustments to the provisional amounts. The Company does not expect such adjustments to have a material impact on the Company’s provision for income taxes. The Company’s effective tax rate was 27% and 34% for the three months ended June 30, 2018 and 2017, respectively. The Company’s effective tax rate was 27% and 32% for the six months ended June 30, 2018 and 2017, respectively. The higher effective tax rate for the three and six months ended June 30, 2018 compared to the U.S. federal statutory rate of 21% was primarily due to increased earnings in jurisdictions with higher tax rates than the U.S. federal statutory rate, an increase in U.S. permanent items primarily related to the Tax Act including GILTI, the repeal of the domestic production activity deduction, limitations on the deductibility of certain executive compensation, limitations on the use of foreign tax credits to reduce the U.S. income tax liability, partially offset by the FDII deduction. The lower effective tax rate for the three and six months ended June 30, 2018 compared to the U.S. federal statutory rate for the same period in 2017 of 35% was primarily due to the decrease in the federal statutory rate due to the Tax Act and an increase in earnings in jurisdictions with lower tax rates than the U.S. federal statutory rate where such earnings are permanently reinvested. The Company provides valuation allowances against deferred tax assets when it is more likely than not that some portion or all of its deferred tax assets will not be realized. No significant changes to the valuation allowances were reflected for the period ended June 30, 2018. During the period ended June 30, 2018, the Company did not record any unrecognized tax benefits and as of June 30, 2018, the Company had no unrecognized tax benefits. The Company does not anticipate any significant changes to its gross unrecognized tax benefits within the next twelve months. Prior to the Tax Act, the Company considered the majority of the earnings in its non-U.S. subsidiaries to be permanently reinvested and, accordingly, did not record any associated deferred income taxes on such earnings. Since the Tax Act includes the Transition Tax, these previously unremitted earnings for which no U.S. deferred tax liability had been accrued have now been subject to U.S. tax. Notwithstanding the U.S. taxation of these amounts, we intend to continue to invest most or all of these earnings, as well as our capital in these subsidiaries, indefinitely, outside of the U.S. and do not expect to incur any significant, additional taxes related to such amounts

Product Warranty Reserve

Product Warranty Reserve	6 Months Ended
	Jun. 30, 2018
Guarantees [Abstract]
Product Warranty Reserve	NOTE N – PRODUCT WARRANTY RESERVE The Company records an accrual for estimated warranty costs to Costs of products sold in the Statements of Consolidated Income. These amounts are recorded in Accrued expenses and other liabilities in the Consolidated Balance Sheets. The Company records and accounts for its warranty reserve based on specific claim incidents. Should the Company become aware of a specific potential warranty claim for which liability is probable and reasonably estimable, a specific charge is recorded and accounted for accordingly. Adjustments are made quarterly to the accruals as claim information changes. The following is a rollforward of the product warranty reserve: Six Months Ended June 30 2018 2017 Beginning of period balance $ 1,076 $ 1,058 Additions charged to income 14 198 Warranty usage (143 ) (118 ) Currency translation (68 ) 63 End of period balance $ 879 $ 1,201

Debt Arrangements

Debt Arrangements	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Debt Arrangements	NOTE O – DEBT ARRANGEMENTS On March 13, 2018, the Company extended the term on its $65 million credit facility from June 30, 2019 to June 30, 2021. All other terms remain the same, including the interest rate at LIBOR plus 1.125% unless its funded debt to Earnings before Interest, Taxes and Depreciation ratio exceeds 2.25 to 1, then the LIBOR spread becomes 1.500%. In the first six months of 2018, the Company’s Polish subsidiary borrowed $.9 million U.S. dollars at a rate of 1.125% plus the Warsaw Interbank Offer Rate with a term expiring June 30, 2021. At June 30, 2018, the interest rates on the U.S. and Polish line of credit agreement were 3.215% and 2.765%, respectively. Under the credit facility, at June 30, 2018, the Company had utilized $26.8 million with $38.2 million available under the line of credit, net of long-term outstanding letters of credit. The line of credit agreement contains, among other provisions, requirements for maintaining levels of net worth and profitability. At June 30, 2018, the Company was in compliance with these covenants. On June 30, 2018 and December 31, 2017, the Company’s Asia Pacific segment had $.3 million and $1.2 million, respectively, in restricted cash used to secure bank debt. The restricted cash is shown on the balance sheet in Other assets.

Related Party Transactions

Related Party Transactions	6 Months Ended
	Jun. 30, 2018
Related Party Transactions [Abstract]
Related Party Transactions	NOTE P – RELATED PARTY TRANSACTIONS On February 6, 2018, the Company purchased 7,877 shares of the Company from current Officers and a retired Officer at a price per share of $80.20, which was calculated from a 30-day average of market price in connection with the vesting of equity awards. The Audit Committee of the Board of Directors approved this transaction. On March 15, 2018, the Company purchased 1,430 shares of the Company from a current Officer at a price per share of $63.63, which was calculated from a 30-day average of market price in connection with the vesting of equity awards. The Audit Committee of the Board of Directors approved this transaction. On May 10, 2018, the Company purchased 3,200 shares of the Company from a current Officer at a price per share of $68.10, which was calculated from a 30-day average of market price in connection with the vesting of equity awards. The Audit Committee of the Board of Directors approved this transaction. On June 1, 2018, the Company purchased 8,800 shares of the Company from a retired Officer at a price per share of $73.53, which was calculated from a 30-day average of market price in connection with the vesting of equity awards. The Audit Committee of the Board of Directors approved this transaction. On June 15, 2018, the Company purchased 1,500 shares of the Company from current Officers at a price per share of $77.06, which was calculated from a 30-day average of market price in connection with the vesting of equity awards. The Audit Committee of the Board of Directors approved this transaction.

Revenue (Tables)

Revenue (Tables)	6 Months Ended
	Jun. 30, 2018
Revenue From Contract With Customer [Abstract]
Revenues by Segment and Product Type	The Company’s revenues by segment and product type are as follows: Three Months Ended June 30, 2018 Product Type PLP-USA The Americas EMEA Asia-Pacific Consolidated Energy 57 % 77 % 75 % 70 % 68 % Communications 36 19 6 4 19 Special Industries 7 4 19 26 13 Total 100 % 100 % 100 % 100 % 100 % Six Months Ended June 30, 2018 Product Type PLP-USA The Americas EMEA Asia-Pacific Consolidated Energy 58 % 77 % 78 % 74 % 69 % Communications 36 19 6 5 20 Special Industries 6 4 16 21 11 Total 100 % 100 % 100 % 100 % 100 %

Other Financial Statement Inf26

Other Financial Statement Information (Tables)	6 Months Ended
	Jun. 30, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Inventories - Net	Inventories – net June 30, 2018 December 31, 2017 Raw materials $ 42,830 $ 42,712 Work-in-process 10,469 9,609 Finished Goods 38,060 33,780 91,359 86,101 Excess of current cost over LIFO cost (3,399 ) (2,991 ) Noncurrent portion of inventory (4,748 ) (5,224 ) $ 83,212 $ 77,886
Property, Plant and Equipment - Net	Major classes of Property, plant and equipment are stated at cost and were as follows: June 30, 2018 December 31, 2017 Land and improvements $ 12,582 $ 13,141 Buildings and improvements 74,917 75,941 Machinery, equipment and aircraft 168,522 166,999 Construction in progress 3,781 5,124 259,802 261,205 Less accumulated depreciation (154,630 ) (152,607 ) $ 105,172 $ 108,598

Pension Plans (Tables)

Pension Plans (Tables)	6 Months Ended
	Jun. 30, 2018
Compensation And Retirement Disclosure [Abstract]
Components of Net Periodic Pension Cost	Net periodic pension cost for this plan included the following components: Three Months Ended June 30 Six Months Ended June 30 2018 2017 2018 2017 Service cost $ 84 $ 72 $ 166 $ 127 Interest cost 333 363 666 729 Expected return on plan assets (496 ) (476 ) (991 ) (951 ) Recognized net actuarial loss 121 131 242 248 Net periodic pension cost $ 42 $ 90 $ 83 $ 153

Accumulated Other Comprehensi28

Accumulated Other Comprehensive Income ("AOCI") (Tables)	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
Summary of Total Changes in AOCI by Component, Net of Tax	The following tables set forth the total changes in AOCI by component, net of tax: Three Months Ended June 30, 2018 Three Months Ended June 30, 2017 Defined pension plan activity Currency Translation Adjustment Total Defined benefit pension plan activity Currency Translation Adjustment Total Balance at April 1 $ (5,923 ) $ (37,594 ) $ (43,517 ) $ (5,802 ) $ (46,023 ) $ (51,825 ) Other comprehensive income before reclassifications: (Loss) gain on foreign currency translation adjustment 0 (13,367 ) (13,367 ) 0 2,810 2,810 Amounts reclassified from AOCI: Amortization of defined benefit pension actuarial gain (a) 92 0 92 83 0 83 Net current period other comprehensive income (loss) 92 (13,367 ) (13,275 ) 83 2,810 2,893 Balance at June 30 $ (5,831 ) $ (50,961 ) $ (56,792 ) $ (5,719 ) $ (43,213 ) $ (48,932 ) Six Months Ended June 30, 2018 Six Months Ended June 30, 2017 Defined pension plan activity Currency Translation Adjustment Total Defined benefit pension plan activity Currency Translation Adjustment Total Balance at January 1 $ (6,014 ) $ (41,426 ) $ (47,440 ) $ (5,874 ) $ (51,495 ) $ (57,369 ) Other comprehensive income before reclassifications: (Loss) gain on foreign currency translation adjustment 0 (9,535 ) (9,535 ) 0 8,282 8,282 Amounts reclassified from AOCI: Amortization of defined benefit pension actuarial loss (a) 183 0 183 155 0 155 Net current period other comprehensive income (loss) 183 (9,535 ) (9,352 ) 155 8,282 8,437 Balance at June 30 $ (5,831 ) $ (50,961 ) $ (56,792 ) $ (5,719 ) $ (43,213 ) $ (48,932 ) (a) This AOCI component is included in the computation of net periodic pension costs.

Computation of Earnings Per S29

Computation of Earnings Per Share (Tables)	6 Months Ended
	Jun. 30, 2018
Earnings Per Share [Abstract]
Calculation of Basic and Diluted Earnings Per Share	The calculation of basic and diluted earnings per share for the three and six months ended June 30, 2018 and 2017 was as follows: Three Months Ended June 30 Six Months Ended June 30 2018 2017 2018 2017 Numerator Net income $ 6,735 $ 4,156 $ 12,263 $ 5,674 Denominator Determination of shares Weighted-average common shares outstanding 5,044 5,116 5,045 5,117 Dilutive effect - share-based awards 20 11 19 15 Diluted weighted-average common shares outstanding 5,064 5,127 5,064 5,132 Earnings per common share Basic $ 1.34 $ 0.81 $ 2.43 $ 1.11 Diluted $ 1.33 $ 0.81 $ 2.42 $ 1.11

Goodwill and Other Intangibles

Goodwill and Other Intangibles (Tables)	6 Months Ended
	Jun. 30, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Finite and Indefinite-Lived Intangible Assets	The Company’s finite and indefinite-lived intangible assets consist of the following: June 30, 2018 December 31, 2017 Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Finite-lived intangible assets Patents $ 4,806 $ (4,802 ) $ 4,806 $ (4,791 ) Land use rights 1,151 (203 ) 1,199 (201 ) Trademarks 1,716 (1,190 ) 1,770 (1,166 ) Technology 3,027 (1,263 ) 3,149 (1,215 ) Customer relationships 11,984 (6,133 ) 12,350 (5,881 ) $ 22,684 $ (13,591 ) $ 23,274 $ (13,254 ) Indefinite-lived intangible assets Goodwill $ 15,867 $ 16,544
Changes in Carrying Amount of Goodwill by Segment	The changes in the carrying amount of goodwill, by segment, for the six months ended June 30, 2018 are as follows: USA The Americas EMEA Asia-Pacific Total Balance at January 1, 2018 $ 3,078 $ 4,292 $ 1,495 $ 7,679 $ 16,544 Currency translation 0 (205 ) (117 ) (355 ) (677 ) Balance at June 30, 2018 $ 3,078 $ 4,087 $ 1,378 $ 7,324 $ 15,867

Share-Based Compensation (Table

Share-Based Compensation (Tables)	6 Months Ended
	Jun. 30, 2018
Summary of RSUs Outstanding Under LTIP	A summary of the RSUs outstanding under the LTIP for the six months ended June 30, 2018 is as follows: Restricted Share Units Performance and Service Required (1) Service Required Total Restricted Share Units Weighted-Average Grant-Date Fair Value Nonvested as of January 1, 2018 200,572 18,214 218,786 $ 52.68 Granted 63,122 8,155 71,277 73.86 Vested (19,277 ) 0 (19,277 ) 45.85 Forfeited (30,793 ) 0 (30,793 ) 45.85 Nonvested as of June 30, 2018 213,624 26,369 239,993 $ 53.89 (1) Nonvested performance-based RSUs are reflected above at the maximum performance achievement level.
Long Term Incentive Plan [Member]
Stock Option Activity in Company's Plan	Stock option activity under the Company’s LTIP for six months ended June 30, 2018 was as follows: Number of Shares Weighted Average Exercise Price per Share Weighted Average Remaining Contractual Term (Years) Aggregate Intrinsic Value (000's) Outstanding at January 1, 2018 29,250 $ 56.84 Granted 0 $ 0.00 Exercised (1,500 ) $ 52.81 Forfeited 0 $ 0.00 Outstanding (vested and expected to vest) at June 30, 2018 27,750 $ 57.05 6.7 $ 880 Exercisable at June 30, 2018 23,125 $ 59.44 6.1 $ 678
Stock Options [Member]
Stock Option Activity in Company's Plan	Activity in the Company’s 1999 Stock Option Plan for the six months ended June 30, 2018 was as follows: Number of Shares Weighted Average Exercise Price per Share Weighted Average Remaining Contractual Term (Years) Aggregate Intrinsic Value (000's) Outstanding at January 1, 2018 750 $ 39.10 Granted 0 $ 0.00 Exercised 0 $ 0.00 Forfeited 0 $ 0.00 Outstanding (exercisable and vested) at June 30, 2018 750 $ 39.10 1.3 $ 37

Fair Value of Financial Asset32

Fair Value of Financial Assets and Liabilities (Tables)	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Summary of Assets and Liabilities Recorded and Measured at Fair Value	The following table summarizes the Company’s assets and liabilities, recorded and measured at fair value, in the consolidated balance sheets as of June 30, 2018 (there were no financial instruments measured at fair value at December 31, 2017): Description Balance as of June 30, 2018 Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Assets: Marketable securities $ 1,737 $ 1,737 $ 0 $ 0 Total Assets $ 1,737 $ 1,737 $ 0 $ 0 Liabilities: Supplemental profit sharing plan 4,632 0 4,632 0 Total Liabilities $ 4,632 $ 0 $ 4,632 $ 0

Segment Information (Tables)

Segment Information (Tables)	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
Summary of Company's Reportable Segment	The following tables present a summary of the Company’s reportable segments for the three and six months ended June 30, 2018 and 2017. Financial results for the PLP-USA segment include the elimination of all segments’ intercompany profit in inventory. Three Months Ended June 30 Six Months Ended June 30 2018 2017 2018 2017 Net sales PLP-USA $ 42,665 $ 38,087 $ 82,107 $ 72,949 The Americas 18,008 16,827 37,555 33,396 EMEA 21,402 17,578 36,483 31,430 Asia-Pacific 26,840 25,020 50,909 44,306 Total net sales $ 108,915 $ 97,512 $ 207,054 $ 182,081 Intersegment sales PLP-USA $ 2,252 $ 3,012 $ 4,434 $ 6,019 The Americas 2,614 1,467 4,582 2,708 EMEA 506 285 840 600 Asia-Pacific 3,562 2,485 5,272 4,536 Total intersegment sales $ 8,934 $ 7,249 $ 15,128 $ 13,863 Income taxes PLP-USA $ 854 $ 463 $ 1,228 $ 41 The Americas 979 804 2,368 1,515 EMEA 421 375 659 578 Asia-Pacific 235 460 335 568 Total income taxes $ 2,489 $ 2,102 $ 4,590 $ 2,702 Net income (loss) PLP-USA $ 1,843 $ 949 $ 3,556 $ 317 The Americas 2,657 1,789 5,800 3,574 EMEA 1,561 669 1,925 1,288 Asia-Pacific 674 749 982 495 Total net income $ 6,735 $ 4,156 $ 12,263 $ 5,674 June 30, 2018 December 31, 2017 Assets PLP-USA $ 124,025 $ 116,484 The Americas 67,729 70,720 EMEA 60,892 62,524 Asia-Pacific 111,434 110,057 Total identifiable assets $ 364,080 $ 359,785

Product Warranty Reserve (Table

Product Warranty Reserve (Tables)	6 Months Ended
	Jun. 30, 2018
Guarantees [Abstract]
Roll Forward of Product Warranty Reserve	The following is a rollforward of the product warranty reserve: Six Months Ended June 30 2018 2017 Beginning of period balance $ 1,076 $ 1,058 Additions charged to income 14 198 Warranty usage (143 ) (118 ) Currency translation (68 ) 63 End of period balance $ 879 $ 1,201

Revenue - Revenues by Segment a

Revenue - Revenues by Segment and Product Type (Detail)	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	100.00%	100.00%
Energy [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	68.00%	69.00%
Communications [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	19.00%	20.00%
Special Industries [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	13.00%	11.00%
PLP-USA [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	100.00%	100.00%
PLP-USA [Member] | Energy [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	57.00%	58.00%
PLP-USA [Member] | Communications [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	36.00%	36.00%
PLP-USA [Member] | Special Industries [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	7.00%	6.00%
The Americas [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	100.00%	100.00%
The Americas [Member] | Energy [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	77.00%	77.00%
The Americas [Member] | Communications [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	19.00%	19.00%
The Americas [Member] | Special Industries [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	4.00%	4.00%
EMEA [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	100.00%	100.00%
EMEA [Member] | Energy [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	75.00%	78.00%
EMEA [Member] | Communications [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	6.00%	6.00%
EMEA [Member] | Special Industries [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	19.00%	16.00%
Asia-Pacific [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	100.00%	100.00%
Asia-Pacific [Member] | Energy [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	70.00%	74.00%
Asia-Pacific [Member] | Communications [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	4.00%	5.00%
Asia-Pacific [Member] | Special Industries [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	26.00%	21.00%

Other Financial Statement Inf36

Other Financial Statement Information - Inventories - Net (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Inventory Disclosure [Abstract]
Raw materials	$ 42,830	$ 42,712
Work-in-process	10,469	9,609
Finished Goods	38,060	33,780
Inventory, gross	91,359	86,101
Excess of current cost over LIFO cost	(3,399)	(2,991)
Noncurrent portion of inventory	(4,748)	(5,224)
Inventories - net	$ 83,212	$ 77,886

Other Financial Statement Inf37

Other Financial Statement Information - Additional Information (Detail) - USD ($) $ in Millions	Jun. 01, 2018	Nov. 02, 2016	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Inventory Disclosure [Abstract]
Cost of inventories for certain materials using LIFO method			$ 26.7		$ 26.7		$ 25.1
Expense (benefit) charge to earnings from LIFO inventory changes			$ 0.2	$ (0.1)	$ 0.4	$ 0.1
Name of plaintiff					Altalink, L.P.
Complaint filling date					November 2,016
Estimated damages from defendants	$ 29.4	$ 56

Other Financial Statement Inf38

Other Financial Statement Information - Property, Plant and Equipment - Net (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Property, plant and equipment - Gross	$ 259,802	$ 261,205
Less accumulated depreciation	(154,630)	(152,607)
Property, plant and equipment - Net	105,172	108,598
Land and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment - Gross	12,582	13,141
Buildings and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment - Gross	74,917	75,941
Machinery, Equipment and Aircraft [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment - Gross	168,522	166,999
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment - Gross	$ 3,781	$ 5,124

Pension Plans - Components of N

Pension Plans - Components of Net Periodic Pension Cost (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Compensation And Retirement Disclosure [Abstract]
Service cost	$ 84	$ 72	$ 166	$ 127
Interest cost	333	363	666	729
Expected return on plan assets	(496)	(476)	(991)	(951)
Recognized net actuarial loss	121	131	242	248
Net periodic pension cost	$ 42	$ 90	$ 83	$ 153

Pension Plans - Additional Info

Pension Plans - Additional Information (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2018USD ($)
Compensation And Retirement Disclosure [Abstract]
Contribution to pension plan	$ 0.5
Pension plan contributions to be made during the second half of 2018	$ 0.1

Accumulated Other Comprehensi41

Accumulated Other Comprehensive Income ("AOCI") - Summary of Total Changes in AOCI by Component, Net of Tax (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			$ 238,537
Other comprehensive income before reclassifications:
(Loss) gain on foreign currency translation adjustment	$ (13,367)	$ 2,810	(9,535)	$ 8,282
Amounts reclassified from AOCI:
Amortization of defined benefit pension actuarial gain (loss)	92	83	183	155
Other comprehensive income (loss), net of tax	(13,275)	2,893	(9,352)	8,437
Ending Balance	239,529		239,529
Defined Benefit Pension Plan Activity [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(5,923)	(5,802)	(6,014)	(5,874)
Other comprehensive income before reclassifications:
(Loss) gain on foreign currency translation adjustment	0	0	0	0
Amounts reclassified from AOCI:
Amortization of defined benefit pension actuarial gain (loss)	92	83	183	155
Other comprehensive income (loss), net of tax	92	83	183	155
Ending Balance	(5,831)	(5,719)	(5,831)	(5,719)
Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(37,594)	(46,023)	(41,426)	(51,495)
Other comprehensive income before reclassifications:
(Loss) gain on foreign currency translation adjustment	(13,367)	2,810	(9,535)	8,282
Amounts reclassified from AOCI:
Amortization of defined benefit pension actuarial gain (loss)	0	0	0	0
Other comprehensive income (loss), net of tax	(13,367)	2,810	(9,535)	8,282
Ending Balance	(50,961)	(43,213)	(50,961)	(43,213)
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(43,517)	(51,825)	(47,440)	(57,369)
Amounts reclassified from AOCI:
Ending Balance	$ (56,792)	$ (48,932)	$ (56,792)	$ (48,932)

Computation of Earnings Per S42

Computation of Earnings Per Share - Calculation of Basic and Diluted Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Numerator
Net income	$ 6,735	$ 4,156	$ 12,263	$ 5,674
Determination of shares
Weighted-average common shares outstanding	5,044	5,116	5,045	5,117
Dilutive effect - share-based awards	20	11	19	15
Diluted weighted-average common shares outstanding	5,064	5,127	5,064	5,132
Earnings per common share
Basic	$ 1.34	$ 0.81	$ 2.43	$ 1.11
Diluted	$ 1.33	$ 0.81	$ 2.42	$ 1.11

Computation of Earnings Per S43

Computation of Earnings Per Share - Additional Information (Detail) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive shares excluded from calculation of earnings per share	0	48,498	0	47,679

Goodwill and Other Intangible44

Goodwill and Other Intangibles - Finite and Indefinite-Lived Intangible Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Finite-lived intangible assets
Gross Carrying Amount	$ 22,684	$ 23,274
Accumulated Amortization	(13,591)	(13,254)
Indefinite-lived intangible assets Goodwill	15,867	16,544
Patents [Member]
Finite-lived intangible assets
Gross Carrying Amount	4,806	4,806
Accumulated Amortization	(4,802)	(4,791)
Land Use Rights [Member]
Finite-lived intangible assets
Gross Carrying Amount	1,151	1,199
Accumulated Amortization	(203)	(201)
Trademarks [Member]
Finite-lived intangible assets
Gross Carrying Amount	1,716	1,770
Accumulated Amortization	(1,190)	(1,166)
Technology [Member]
Finite-lived intangible assets
Gross Carrying Amount	3,027	3,149
Accumulated Amortization	(1,263)	(1,215)
Customer Relationships [Member]
Finite-lived intangible assets
Gross Carrying Amount	11,984	12,350
Accumulated Amortization	$ (6,133)	$ (5,881)

Goodwill and Other Intangible45

Goodwill and Other Intangibles - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Finite Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 0.3	$ 0.3	$ 0.5	$ 0.5
2,018	0.5		0.5
2,019	0.9		0.9
2,020	0.9		0.9
2,021	0.8		0.8
2,022	$ 0.8		$ 0.8
Remaining amortization period			16 years 4 months 24 days
Patents [Member]
Finite Lived Intangible Assets [Line Items]
Remaining amortization period			7 years 6 months
Land Use Rights [Member]
Finite Lived Intangible Assets [Line Items]
Remaining amortization period			57 years 4 months 24 days
Trademarks [Member]
Finite Lived Intangible Assets [Line Items]
Remaining amortization period			8 years 10 months 24 days
Technology [Member]
Finite Lived Intangible Assets [Line Items]
Remaining amortization period			13 years 4 months 24 days
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Remaining amortization period			11 years 10 months 24 days

Goodwill and Other Intangible46

Goodwill and Other Intangibles - Changes in Carrying Amount of Goodwill by Segment (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2018USD ($)
Goodwill [Line Items]
Beginning Balance	$ 16,544
Currency translation	(677)
Ending Balance	15,867
USA [Member]
Goodwill [Line Items]
Beginning Balance	3,078
Currency translation	0
Ending Balance	3,078
The Americas [Member]
Goodwill [Line Items]
Beginning Balance	4,292
Currency translation	(205)
Ending Balance	4,087
EMEA [Member]
Goodwill [Line Items]
Beginning Balance	1,495
Currency translation	(117)
Ending Balance	1,378
Asia-Pacific [Member]
Goodwill [Line Items]
Beginning Balance	7,679
Currency translation	(355)
Ending Balance	$ 7,324

Share-Based Compensation - Acti

Share-Based Compensation - Activity in Company's Plan (Detail) - 1999 Stock Option Plan [Member] - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding at January 1, 2018, Number of Shares	750
Granted, Number of Shares	0
Exercised, Number of Shares	0	0
Forfeited, Number of Shares	0
Outstanding (exercisable and vested) at June 30, 2018, Number of Shares	750
Outstanding at January 1, 2018, Weighted Average Exercise Price per Share	$ 39.10
Granted, Weighted Average Exercise Price per Share	0
Exercised, Weighted Average Exercise Price per Share	0
Forfeited, Weighted Average Exercise Price per Share	0
Outstanding (exercisable and vested) at June 30, 2018, Weighted Average Exercise Price per Share	$ 39.10
Outstanding (exercisable and vested), Weighted Average Remaining Contractual Term	1 year 3 months 18 days
Outstanding (exercisable and vested) Aggregate Intrinsic Value	$ 37

Share-Based Compensation - Addi

Share-Based Compensation - Additional Information (Detail)	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)shares	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)Deferralshares	Jun. 30, 2017USD ($)shares	Dec. 31, 2017shares	May 10, 2016shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred shares and held by the rabbi trust	269,358		269,358		289,026
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares reserved for awards	800,000		800,000
Long Term Incentive Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares reserved for awards	100,000		100,000
Long Term Incentive Stock Option [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option issued under plan vest and expire			5 years
Long Term Incentive Stock Option [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option issued under plan vest and expire			10 years
Time-Based RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expenses | $	$ 100,000	$ 100,000	$ 200,000	$ 200,000
Compensation cost expected to be recognized over period | $	800,000		$ 800,000
Weighted-average period			2 years 1 month 6 days
Performance-Based RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average period			1 year 10 months 24 days
Performance-based compensation expense (income) | $	700,000	400,000	$ 1,400,000	$ 900,000
Remaining compensation expense | $	$ 4,500,000		$ 4,500,000
1999 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercised, Number of Shares			0	0
Granted, Number of Shares			0
1999 Stock Option Plan [Member] | Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expenses | $			$ 0	$ 0
Long Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares reserved for awards	900,000		900,000
2016 Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares reserved for awards						1,000,000
Incentive plan expiry date			May 10, 2026
2016 Incentive Plan [Member] | Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares reserved for awards						100,000
2016 Incentive Plan [Member] | Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares reserved for awards						900,000
Long Term Incentive Plan Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercised, Number of Shares			1,500	0
Weighted-average period			1 year 7 months 6 days
Granted, Number of Shares			0	5,000
Long Term Incentive Plan Stock Option [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expenses | $	$ 100,000	$ 100,000	$ 100,000	$ 100,000
Expected compensation cost related to unvested awards not yet recognized | $	$ 100,000		$ 100,000
Long Term Incentive Plan Stock Option [Member] | After One Year [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option awards vesting percentage			50.00%
Long Term Incentive Plan Stock Option [Member] | After Two Years [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option awards vesting percentage			75.00%
Long Term Incentive Plan Stock Option [Member] | After Three Years [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option awards vesting percentage			100.00%
Deferred Compensation Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of deferrals | Deferral			2

Share-Based Compensation - Summ

Share-Based Compensation - Summary of RSUs Outstanding Under LTIP (Detail)	6 Months Ended
	Jun. 30, 2018$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested as of January 1, 2018	218,786
Granted	71,277
Vested	(19,277)
Forfeited	(30,793)
Nonvested as of June 30, 2018	239,993
Nonvested as of January 1, 2018, Weighted-Average Grant-Date Fair Value | $ / shares	$ 52.68
Weighted-Average Grant-Date Fair Value, Granted | $ / shares	73.86
Weighted-Average Grant-Date Fair Value, Vested | $ / shares	45.85
Weighted-Average Grant-Date Fair Value, Forfeited | $ / shares	45.85
Nonvested as of June 30, 2018, Weighted-Average Grant-Date Fair Value | $ / shares	$ 53.89
Performance and Service Required [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested as of January 1, 2018	200,572
Granted	63,122
Vested	(19,277)
Forfeited	(30,793)
Nonvested as of June 30, 2018	213,624
Service Required [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested as of January 1, 2018	18,214
Granted	8,155
Vested	0
Forfeited	0
Nonvested as of June 30, 2018	26,369

Share-Based Compensation - Stoc

Share-Based Compensation - Stock Option Activity under Company's Plan - Long Term Incentive Plan (Detail) - Long Term Incentive Plan Stock Option [Member] - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding at January 1, 2018, Number of Shares	29,250
Granted, Number of Shares	0	5,000
Exercised, Number of Shares	(1,500)	0
Forfeited, Number of Shares	0
Outstanding (vested and expected to vest) at June 30, 2018, Number of Shares	27,750
Exercisable at June 30, 2018, Number of Shares	23,125
Outstanding at January 1, 2018, Weighted Average Exercise Price per Share	$ 56.84
Granted, Weighted Average Exercise Price per Share	0
Exercised, Weighted Average Exercise Price per Share	52.81
Forfeited, Weighted Average Exercise Price per Share	0
Outstanding (vested and expected to vest) at June 30, 2018, Weighted Average Exercise Price per Share	57.05
Exercisable at June 30, 2018, Weighted Average Exercise Price per Share	$ 59.44
Outstanding (vested and expected to vest) at June 30, 2018, Weighted Average Remaining Contractual Term	6 years 8 months 12 days
Exercisable at June 30, 2018, Weighted Average Remaining Contractual Term	6 years 1 month 6 days
Outstanding (vested and expected to vest) at June 30, 2018, Aggregate Intrinsic Value	$ 880
Exercisable at June 30, 2018, Aggregate Intrinsic Value	$ 678

Fair Value of Financial Asset51

Fair Value of Financial Assets and Liabilities - Summary of Assets and Liabilities Recorded and Measured at Fair Value (Detail) $ in Thousands	Jun. 30, 2018USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities	$ 1,737
Total Assets	1,737
Supplemental profit sharing plan	4,632
Total Liabilities	4,632
Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities	1,737
Total Assets	1,737
Supplemental profit sharing plan	0
Total Liabilities	0
Significant Other Observable Inputs (Level 2) [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities	0
Total Assets	0
Supplemental profit sharing plan	4,632
Total Liabilities	4,632
Significant Unobservable Inputs (Level 3) [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities	0
Total Assets	0
Supplemental profit sharing plan	0
Total Liabilities	$ 0

Fair Value of Financial Asset52

Fair Value of Financial Assets and Liabilities - Additional Information (Detail) - USD ($)	1 Months Ended	3 Months Ended	6 Months Ended
	Apr. 30, 2018	Jun. 30, 2018	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Investments in marketable securities			$ 4,690,000	$ 0
Marketable securities		$ 1,737,000	1,737,000
Supplemental profit sharing plan		4,632,000	4,632,000
Profit Sharing Plan [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Supplemental profit sharing plan		4,600,000	4,600,000		$ 4,800,000
Corporate Owned Life Insurance Policy [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Amount sold from available-for-sale securities	$ 2,900,000	3,000,000
Corporate Owned Life Insurance Policy [Member] | Other Assets [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash surrender value		$ 3,000,000	3,000,000
Maximum [Member] | Other Income [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Gain loss on change in fair value of securities			$ 100,000

Recently Adopted Accounting P53

Recently Adopted Accounting Pronouncements - Additional Information (Detail) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended	6 Months Ended
	Apr. 30, 2018	Jun. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Marketable securities		$ 1,737	$ 1,737
Corporate Owned Life Insurance Policy [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Amount sold of available-for-sale marketable securities	$ 2,900	3,000
ASU 2016-18 [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
New accounting pronouncement or change in accounting principle, cumulative effect of change on equity or net assets		$ 300	300		$ 1,200
ASU 2016-01 [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Marketable securities				$ 4,300
ASU 2016-01 [Member] | Maximum [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Gain on change in fair value of marketable securities			$ 100

Segment Information - Summary o

Segment Information - Summary of Company's Reportable Segments (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Net sales
Net sales	$ 108,915	$ 97,512	$ 207,054	$ 182,081
Income taxes
Income taxes	2,489	2,102	4,590	2,702
Net income (loss)
Net income (loss)	6,735	4,156	12,263	5,674
Assets
Identifiable assets	364,080		364,080		$ 359,785
PLP-USA [Member]
Net sales
Net sales	42,665	38,087	82,107	72,949
Income taxes
Income taxes	854	463	1,228	41
Net income (loss)
Net income (loss)	1,843	949	3,556	317
Assets
Identifiable assets	124,025		124,025		116,484
The Americas [Member]
Net sales
Net sales	18,008	16,827	37,555	33,396
Income taxes
Income taxes	979	804	2,368	1,515
Net income (loss)
Net income (loss)	2,657	1,789	5,800	3,574
Assets
Identifiable assets	67,729		67,729		70,720
EMEA [Member]
Net sales
Net sales	21,402	17,578	36,483	31,430
Income taxes
Income taxes	421	375	659	578
Net income (loss)
Net income (loss)	1,561	669	1,925	1,288
Assets
Identifiable assets	60,892		60,892		62,524
Asia-Pacific [Member]
Net sales
Net sales	26,840	25,020	50,909	44,306
Income taxes
Income taxes	235	460	335	568
Net income (loss)
Net income (loss)	674	749	982	495
Assets
Identifiable assets	111,434		111,434		$ 110,057
Intersegment Eliminations [Member]
Net sales
Net sales	(8,934)	(7,249)	(15,128)	(13,863)
Intersegment Eliminations [Member] | PLP-USA [Member]
Net sales
Net sales	(2,252)	(3,012)	(4,434)	(6,019)
Intersegment Eliminations [Member] | The Americas [Member]
Net sales
Net sales	(2,614)	(1,467)	(4,582)	(2,708)
Intersegment Eliminations [Member] | EMEA [Member]
Net sales
Net sales	(506)	(285)	(840)	(600)
Intersegment Eliminations [Member] | Asia-Pacific [Member]
Net sales
Net sales	$ (3,562)	$ (2,485)	$ (5,272)	$ (4,536)

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Tax Cuts and Jobs Act incomplete accounting transition tax unrepatriated earnings foreign subsidiaries payable period					8 years
U.S. federal statutory tax rate			21.00%		35.00%
Effective income tax rate	27.00%	34.00%	27.00%	32.00%
Unrecognized tax benefits	$ 0		$ 0
Unrecognized tax benefits recorded during period			$ 0

Product Warranty Reserve - Roll

Product Warranty Reserve - Roll Forward of Product Warranty Reserve (Detail) - Warranty Reserves [Member] - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning of period balance	$ 1,076	$ 1,058
Additions charged to income	14	198
Warranty usage	(143)	(118)
Currency translation	(68)	63
End of period balance	$ 879	$ 1,201

Debt Arrangements - Additional

Debt Arrangements - Additional Information (Detail) - USD ($)	Mar. 13, 2018	Aug. 22, 2016	Jun. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Increased borrowing capacity	$ 65,000,000
Extended debt instrument date	Jun. 30, 2021	Jun. 30, 2019
Debt to earnings before Interest, Taxes and Depreciation ratio	225.00%
Line of credit utilized borrowing capacity			$ 26,800,000
Line of credit remaining borrowing capacity			38,200,000
Restricted cash used to secure bank debt			$ 300,000	$ 1,200,000
U.S. [Member]
Debt Instrument [Line Items]
Interest rate for Line of credit			3.215%
Asia Pacific [Member]
Debt Instrument [Line Items]
Restricted cash used to secure bank debt			$ 300,000	$ 1,200,000
LIBOR [Member]
Debt Instrument [Line Items]
Interest rate of LIBOR plus	1.125%
LIBOR [Member] | Maximum [Member]
Debt Instrument [Line Items]
Interest rate of LIBOR plus	1.50%
Polish Subsidiary [Member]
Debt Instrument [Line Items]
Borrowings			$ 900,000
Expiring date of Warsaw Interbank Offer Rate			Jun. 30, 2021
Interest rate for Line of credit			2.765%
Polish Subsidiary [Member] | Warsaw Interbank Offer Rate [Member]
Debt Instrument [Line Items]
Interest rate of LIBOR plus			1.125%

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - $ / shares	Jun. 15, 2018	Jun. 01, 2018	May 10, 2018	Mar. 15, 2018	Feb. 06, 2018
Current Officers and Retired Officer [Member]
Related Party Transaction [Line Items]
Purchase of shares					7,877
Shares price per share					$ 80.20
Number of trading days to be considered for average price of stock repurchased					30 days
Officer [Member]
Related Party Transaction [Line Items]
Purchase of shares	1,500		3,200	1,430
Shares price per share	$ 77.06		$ 68.10	$ 63.63
Number of trading days to be considered for average price of stock repurchased	30 days		30 days	30 days
Retired Officer [Member]
Related Party Transaction [Line Items]
Purchase of shares		8,800
Shares price per share		$ 73.53
Number of trading days to be considered for average price of stock repurchased		30 days