Preformed Line Products (PLPC) 10-Q 1 Nov 19 2019 Q3 Quarterly report Financial data

Document and Entity Information

Document and Entity Information - shares	9 Months Ended
	Sep. 30, 2019	Oct. 28, 2019
Cover [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q3
Trading Symbol	PLPC
Entity Registrant Name	PREFORMED LINE PRODUCTS CO
Entity Central Index Key	0000080035
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Common Stock, Shares Outstanding		5,008,398
Entity Current Reporting Status	Yes
Entity Shell Company	false
Entity File Number	0-31164
Entity Tax Identification Number	34-0676895
Entity Address, Address Line One	660 Beta Drive
Entity Address, City or Town	Mayfield Village
Entity Address, State or Province	OH
Entity Address, Postal Zip Code	44143
City Area Code	440
Local Phone Number	461-5200
Document Quarterly Report	true
Document Transition Report	false
Title of 12(b) Security	Common stock, par value $2.00 per share
Security Exchange Name	NASDAQ
Entity Incorporation, State or Country Code	OH
Entity Interactive Data Current	Yes

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
ASSETS
Cash and cash equivalents	$ 41,158	$ 43,609
Accounts receivable, less allowances of $3,845 ($3,178 in 2018)	85,842	73,139
Inventories - net	92,227	85,259
Prepaids	6,821	6,205
Prepaid taxes	2,068	3,169
Other current assets	4,798	2,882
TOTAL CURRENT ASSETS	232,914	214,263
Property, plant and equipment - net	117,697	102,955
Operating lease, right-of-use assets	12,512	0
Intangibles - net	15,216	8,458
Goodwill	25,278	15,621
Deferred income taxes	8,220	6,900
Other assets	13,167	10,600
TOTAL ASSETS	425,004	358,797
LIABILITIES AND SHAREHOLDERS’ EQUITY
Trade accounts payable	28,607	26,414
Notes payable to banks	7,398	9,042
Operating lease liabilities, current	2,090	0
Current portion of long-term debt	2,719	1,448
Accrued compensation and amounts withheld from employees	14,957	11,153
Accrued expenses and other liabilities	17,806	12,582
Accrued profit-sharing and other benefits	5,959	6,982
Dividends payable	1,132	1,051
Income taxes payable	2,814	815
TOTAL CURRENT LIABILITIES	83,482	69,487
Long-term debt, less current portion	52,888	24,960
Unfunded pension obligation	5,082	5,259
Operating lease liabilities, non-current	8,366	0
Deferred income taxes	3,619	1,711
Other noncurrent liabilities	11,850	8,010
Shareholders’ equity:
Common shares - $2 par value per share, 15,000,000 shares authorized, 5,016,293 and 5,020,410 issued and outstanding, at September 30, 2019 and December 31, 2018, respectively	12,825	12,662
Common shares issued to rabbi trust, 267,641 and 269,630 shares at September 30, 2019 and December 31, 2018, respectively	(10,981)	(11,008)
Deferred compensation liability	10,981	11,008
Paid-in capital	37,642	34,401
Retained earnings	348,710	334,170
Treasury shares, at cost, 1,396,152 and 1,310,387 shares at September 30, 2019 and December 31, 2018, respectively	(76,781)	(72,280)
Accumulated other comprehensive loss	(62,733)	(59,583)
TOTAL PREFORMED LINE PRODUCTS, COMPANY SHAREHOLDERS’ EQUITY	259,663	249,370
Noncontrolling interest	54	0
TOTAL SHAREHOLDERS’ EQUITY	259,717	249,370
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY	$ 425,004	$ 358,797

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Statement Of Financial Position [Abstract]
Accounts receivable, less allowances	$ 3,845	$ 3,178
Common stock, par value	$ 2	$ 2
Common stock, shares authorized	15,000,000	15,000,000
Common stock, shares issued	5,016,293	5,020,410
Common stock, shares outstanding	5,016,293	5,020,410
Common stock, shares issued to rabbi trust	267,641	269,630
Treasury stock shares	1,396,152	1,310,387

Statements of Consolidated Inco

Statements of Consolidated Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Statement [Abstract]
Net sales	$ 119,217	$ 108,413	$ 331,212	$ 315,467
Cost of products sold	79,874	74,922	226,798	215,255
GROSS PROFIT	39,343	33,491	104,414	100,212
Costs and expenses
Selling	9,410	8,965	26,868	27,297
General and administrative	13,275	11,655	38,486	33,859
Research and engineering	4,240	3,706	12,809	11,013
Other operating expense - net	775	1,150	1,447	2,950
Total costs and expenses	27,700	25,476	79,610	75,119
OPERATING INCOME	11,643	8,015	24,804	25,093
Other income (expense)
Interest income	211	111	613	340
Interest expense	(735)	(364)	(1,688)	(992)
Other income - net	138	94	306	267
Total other income (expense)	(386)	(159)	(769)	(385)
INCOME BEFORE INCOME TAXES	11,257	7,856	24,035	24,708
Income tax expense (benefit)	3,213	(1,198)	6,302	3,390
NET INCOME	8,044	9,054	17,733	21,318
Less: Net income attributable to noncontrolling interests	93	0	54	0
NET INCOME ATTRIBUTABLE TO PREFORMED LINE PRODUCTS COMPANY SHAREHOLDERS	$ 7,951	$ 9,054	$ 17,679	$ 21,318
AVERAGE NUMBER OF SHARES OF COMMON STOCK OUTSTANDING:
Basic	5,024	5,025	5,039	5,038
Diluted	5,119	5,138	5,077	5,088
EARNINGS PER SHARE OF COMMON STOCK ATTRIBUTABLE TO PREFORMED LINE PRODUCTS COMPANY SHAREHOLDERS:
Basic	$ 1.58	$ 1.80	$ 3.51	$ 4.23
Diluted	$ 1.55	$ 1.76	$ 3.48	$ 4.19

Statements of Consolidated Comp

Statements of Consolidated Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Comprehensive Income Net Of Tax [Abstract]
Net income	$ 8,044	$ 9,054	$ 17,733	$ 21,318
Other comprehensive income (loss), net of tax
Foreign currency translation adjustment	(5,897)	(563)	(3,444)	(10,098)
Recognized net actuarial gain (net of tax provision of $32 and $35 for the three months ended September 30, 2019 and 2018, respectively, and net of tax provision of $95 and $94 for the nine months ended September 30, 2019 and 2018, respectively).	108	116	294	299
Other comprehensive loss, net of tax	(5,789)	(447)	(3,150)	(9,799)
Less: Comprehensive income attributable to noncontrolling interests	93	0	54	0
Comprehensive income attributable to Preformed Line Products Company shareholders	$ 2,162	$ 8,607	$ 14,529	$ 11,519

Statements of Consolidated Co_2

Statements of Consolidated Comprehensive Income (Loss) (Unaudited) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Comprehensive Income Net Of Tax [Abstract]
Net of tax provision on recognized net actuarial gain	$ 32	$ 35	$ 95	$ 94

Statements of Consolidated Cash

Statements of Consolidated Cash Flows (Unaudited) - USD ($) $ in Thousands		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018
OPERATING ACTIVITIES
Net income		$ 17,733	$ 21,318
Adjustments to reconcile net income to net cash provided by (used in) operations:
Depreciation and amortization		9,844	9,295
Provision for accounts receivable allowances		1,327	853
Provision for inventory reserves		1,288	1,728
Deferred income taxes		(1,503)	(480)
Share-based compensation expense		3,344	2,301
Gain on sale of property and equipment		(47)	(147)
Other - net		(35)	152
Changes in operating assets and liabilities
Accounts receivable		(12,865)	(17,471)
Inventories		(6,891)	(9,912)
Trade accounts payable and accrued liabilities		11,591	8,870
Income taxes - net		1,880	(726)
Contributions to company pension plan		0	(5,340)
Other - net		(4,997)	(3,354)
NET CASH PROVIDED BY OPERATING ACTIVITIES		20,669	7,087
INVESTING ACTIVITIES
Capital expenditures		(21,950)	(7,292)
Proceeds from the sale of property and equipment		48	3
Purchase of marketable securities		(496)	(4,690)
Proceeds from marketable securities		2,309	2,953
Purchase of company owned life insurance policy		(2,309)	(2,953)
Acquisition of businesses, net of cash acquired		(18,894)	0
NET CASH USED IN INVESTING ACTIVITIES		(41,292)	(11,979)
FINANCING ACTIVITIES
(Decrease) increase in notes payable to banks		(1,478)	3,131
Proceeds from long-term debt		70,730	57,488
Payments of long-term debt		(41,578)	(59,295)
Dividends paid		(3,226)	(3,121)
Proceeds from issuance of common shares		29	1,146
Purchase of common shares for treasury		(2,397)	(155)
Purchase of common shares for treasury from related parties		(2,104)	(3,971)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES		19,976	(4,777)
Effects of exchange rate changes on cash and cash equivalents		(1,778)	(1,569)
Net (decrease) increase in cash, cash equivalents and restricted cash		(2,425)	(11,238)
Cash, cash equivalents and restricted cash at beginning of year		43,910	45,579
CASH, CASH EQUIVALENTS AND RESTRICTED CASH AT END OF PERIOD	[1]	$ 41,485	$ 34,341
[1]	Includes restricted cash of $.3 million at both September 30, 2019 and December 31, 2018. For further information regarding restricted cash, refer to Note P, “Debt Arrangements.”

Statements of Consolidated Ca_2

Statements of Consolidated Cash Flows (Unaudited) (Parenthetical) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Asia Pacific [Member]
Restricted cash	$ 0.3	$ 0.3

Basis of Presentation

Basis of Presentation	9 Months Ended
	Sep. 30, 2019
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 nine months ended September 30, 2019 are not necessarily indicative of the results to be expected for the full-year ending December 31, 2019. Noncontrolling interests are presented in the Company’s consolidated financial statements as if parent company investors (controlling interests) and other minority investors (noncontrolling interests) in partially-owned subsidiaries have similar economic interests in a single entity. As a result, investments in noncontrolling interests are reported as equity in our consolidated financial statements. Additionally, the Company’s consolidated financial statements include 100% of a controlled subsidiary’s earnings, rather than only its share. Transactions between the parent company and noncontrolling interests are reported in equity as transactions between stockholders, provided that these transactions do not create a change in control. The Consolidated Balance Sheet at December 31, 2018 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 2018 Annual Report on Form 10-K filed on March 8, 2019 with the Securities and Exchange Commission.

Revenue

Revenue	9 Months Ended
	Sep. 30, 2019
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 September 30, 2019 Product Type PLP-USA The Americas EMEA Asia-Pacific Consolidated Energy 63 % 72 % 54 % 75 % 66 % Communications 29 26 34 5 23 Special Industries 8 2 12 20 11 Total 100 % 100 % 100 % 100 % 100 % Three Months Ended September 30, 2018 Product Type PLP-USA The Americas EMEA Asia-Pacific Consolidated Energy 60 % 51 % 63 % 68 % 61 % Communications 33 44 25 4 26 Special Industries 7 5 12 28 13 Total 100 % 100 % 100 % 100 % 100 % Nine Months Ended September 30, 2019 Product Type PLP-USA The Americas EMEA Asia-Pacific Consolidated Energy 63 % 67 % 59 % 68 % 64 % Communications 30 29 27 7 24 Special Industries 7 4 14 25 12 Total 100 % 100 % 100 % 100 % 100 % Nine Months Ended September 30, 2018 Product Type PLP-USA The Americas EMEA Asia-Pacific Consolidated Energy 59 % 70 % 73 % 72 % 66 % Communications 35 26 13 4 22 Special Industries 6 4 14 24 12 Total 100 % 100 % 100 % 100 % 100 %

Other Financial Statement Infor

Other Financial Statement Information	9 Months Ended
	Sep. 30, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Other Financial Statement Information	NOTE C – OTHER FINANCIAL STATEMENT INFORMATION Inventories – net September 30, 2019 December 31, 2018 Raw materials $ 48,948 $ 43,041 Work-in-process 10,926 8,818 Finished Goods 40,945 42,163 100,819 94,022 Excess of current cost over LIFO cost (4,978 ) (4,474 ) Noncurrent portion of inventory (3,614 ) (4,289 ) $ 92,227 $ 85,259 Cost of inventories for certain material is determined using the last-in-first-out (LIFO) method and totaled approximately $30.3 million at September 30, 2019 and $29.5 million at December 31, 2018. 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 and nine-month periods ended September 30, 2019, the net change in LIFO inventories resulted in $.1 million and $.5 million of expense, respectively, to Income before income taxes. During the three and nine-month periods ended September 30, 2018, the net change in LIFO inventories resulted in $.6 million and $1.1 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: September 30, 2019 December 31, 2018 Land and improvements $ 18,380 $ 12,552 Buildings and improvements 81,896 74,743 Machinery, equipment and aircraft 179,503 171,015 Construction in progress 6,356 3,392 286,135 261,702 Less accumulated depreciation (168,438 ) (158,747 ) $ 117,697 $ 102,955 Legal proceedings The Company can be party to a variety of pending legal proceedings and claims arising in the normal course of business, including, but not limited to, litigation relating to employment, workers’ compensation, product liability, environmental and intellectual property. The Company has liability insurance to cover many of these claims. Although the outcomes of these matters are not predictable with certainty, the Company records a liability when it is both probable that a liability has been incurred and the amount of the loss can be reasonably estimated. In the event the Company determines that a loss is not probable, but is reasonably possible, and the likelihood to develop what the Company believes to be a reasonable range of potential loss exists, the Company will include disclosure related to such matters. To the extent that there is a reasonable possibility the losses could exceed amounts already accrued, the Company will adjust the accrual in the period in which the determination is made, disclose an estimate of the additional loss or range of loss and if the amount of such adjustment cannot be reasonably estimated, disclose that an estimate cannot be made. 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 Canadian dollars 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 Canadian dollars on June 1, 2018. The Company believes the claims against it are without merit and intends to vigorously defend against such claims. The Company is unable to predict the outcome of this case and cannot reasonably estimate a potential range of loss. However, if it is to be determined to be adverse 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.

Share Holders Equity

Share Holders Equity	9 Months Ended
	Sep. 30, 2019
Equity [Abstract]
Share Holders Equity	NOTE D – SHARE HOLDERS EQUITY The following table reflects the changes in shareholders equity for the three and nine months ended September 30, 2019 and 2018: Accumulated Other Comprehensive Income (Loss) Common Shares Common Shares Issued to Rabbi Trust Deferred Compensation Liability Paid in Capital Retained Earnings Treasury Shares Cumulative Translation Adjustment Unrecognized Pension Benefit Cost Total Preformed Line Products Company Equity Noncontrolling Interests Total Equity (In thousands, except share and per share data) Balance at December 31, 2018 $ 12,662 $ (11,008 ) $ 11,008 $ 34,401 $ 334,170 $ (72,280 ) $ (53,710 ) $ (5,873 ) $ 249,370 $ 0 $ 249,370 Net income 1,824 1,824 1,824 Foreign currency translation adjustment 1,353 1,353 1,353 Recognized net actuarial gain, net of tax provision of $32 93 93 93 Total comprehensive income 3,270 3,270 Share-based compensation 928 (36 ) 892 892 Purchase of 40,891 common shares (2,294 ) (2,294 ) (2,294 ) Issuance of 78,821 common shares 159 (18 ) 141 141 Common shares issued to rabbi trust of 705, net (30 ) 30 0 0 Cash dividends declared – $.20 per share (165 ) (1,011 ) (1,176 ) (1,176 ) Balance at March 31, 2019 $ 12,821 $ (11,038 ) $ 11,038 $ 35,146 $ 334,947 $ (74,574 ) $ (52,357 ) $ (5,780 ) $ 250,203 $ 0 $ 250,203 Net income 7,904 7,904 (39 ) 7,865 Foreign currency translation adjustment 1,100 1,100 1,100 Recognized net actuarial gain, net of tax provision of $31 93 93 93 Total comprehensive income 9,097 (39 ) 9,058 Share-based compensation 1,028 (43 ) 985 985 Purchase of 29,724 common shares (1,456 ) (1,456 ) (1,456 ) Issuance of 525 common shares 1 26 27 27 Common shares issued to rabbi trust of 525, net (28 ) 28 0 0 Cash dividends declared – $.20 per share (1,004 ) (1,004 ) (1,004 ) Balance at June 30, 2019 $ 12,822 $ (11,066 ) $ 11,066 $ 36,200 $ 341,804 $ (76,030 ) $ (51,257 ) $ (5,687 ) $ 257,852 $ (39 ) $ 257,813 Net income 7,951 7,951 93 8,044 Foreign currency translation adjustment (5,897 ) (5,897 ) (5,897 ) Recognized net actuarial gain, net of tax provision of $32 108 108 108 Total comprehensive income 2,162 93 2,255 Share-based compensation 1,388 (43 ) 1,345 1,345 Purchase of 15,150 common shares (751 ) (751 ) (751 ) Issuance of 1,262 common shares 3 54 57 57 Common shares distributed from rabbi trust of 3,219, net 85 (85 ) 0 0 Cash dividends declared – $.20 per share (1,002 ) (1,002 ) (1,002 ) Balance at September 30, 2019 $ 12,825 $ (10,981 ) $ 10,981 $ 37,642 $ 348,710 $ (76,781 ) $ (57,154 ) $ (5,579 ) $ 259,663 $ 54 $ 259,717 Accumulated Other Comprehensive Income (Loss) Common Shares Common Shares Issued to Rabbi Trust Deferred Compensation Liability Paid in Capital Retained Earnings Treasury Shares Cumulative Translation Adjustment Unrecognized Pension Benefit Cost Total Equity (In thousands, except share and per share data) Balance at December 31, 2017 $ 12,593 $ (11,834 ) $ 11,834 $ 29,734 $ 311,765 $ (68,115 ) $ (41,425 ) $ (6,015 ) $ 238,537 Net income 5,528 5,528 Foreign currency translation adjustment 3,832 3,832 Recognized net actuarial gain, net of tax provision of $30 91 91 Total comprehensive income 9,451 Share-based compensation 790 (9 ) 781 Purchase of 10,907 common shares (833 ) (833 ) Issuance of 21,458 common shares 42 52 94 Common shares issued to rabbi trust of 112, net (15 ) 15 0 Cash dividends declared - $.20 per share (1,009 ) (1,009 ) Balance at March 31, 2018 $ 12,635 $ (11,849 ) $ 11,849 $ 30,576 $ 316,275 $ (68,948 ) $ (37,593 ) $ (5,924 ) $ 247,021 Net income 6,735 6,735 Foreign currency translation adjustment (13,367 ) (13,367 ) Recognized net actuarial gain, net of tax provision of $29 92 92 Total comprehensive income (6,540 ) Share-based compensation 1,994 (49 ) 1,945 Purchase of 13,500 common shares (981 ) (981 ) Issuance of 1,730 common shares 4 4 Common shares distributed from rabbi trust of 19,780, net 861 (861 ) 0 Cash dividends declared - $.20 per share (913 ) (1,007 ) (1,920 ) Balance at June 30, 2018 $ 12,639 $ (10,988 ) $ 10,988 $ 31,657 $ 321,954 $ (69,929 ) $ (50,960 ) $ (5,832 ) $ 239,529 Net income 9,054 9,054 Foreign currency translation adjustment (563 ) (563 ) Recognized net actuarial gain, net of tax provision of $35 116 116 Total comprehensive income 8,607 Share-based compensation 1,421 (17 ) 1,404 Purchase of 27,141 common shares (2,313 ) (2,313 ) Issuance of 272 common shares 4 206 210 Common shares issued to rabbi trust of 272, net (20 ) 20 0 Cash dividends declared - $.20 per share (1,032 ) (1,032 ) Balance at September 30, 2018 $ 12,643 $ (11,008 ) $ 11,008 $ 33,284 $ 329,959 $ (72,242 ) $ (51,523 ) $ (5,716 ) $ 246,405

Pension Plans

Pension Plans	9 Months Ended
	Sep. 30, 2019
Compensation And Retirement Disclosure [Abstract]
Pension Plans	NOTE E – 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 September 30 Nine Months Ended September 30 2019 2018 2019 2018 Service cost $ 130 $ 22 $ 225 $ 188 Interest cost 350 346 1,058 1,012 Expected return on plan assets (483 ) (612 ) (1,459 ) (1,603 ) Recognized net actuarial loss 140 151 390 393 Net periodic pension cost (benefit) $ 137 $ (93 ) $ 214 $ (10 ) No contributions were made to the Plan during the nine months ended September 30, 2019. The Company does not plan to contribute additional funds to the Plan during the remainder of 2019.

Accumulated Other Comprehensive

Accumulated Other Comprehensive Income ("AOCI")	9 Months Ended
	Sep. 30, 2019
Equity [Abstract]
Accumulated Other Comprehensive Income ("AOCI")	NOTE F – ACCUMULATED OTHER COMPREHENSIVE INCOME (“AOCI”) The following tables set forth the total changes in AOCI by component, net of tax: Three Months Ended September 30, 2019 Three Months Ended September 30, 2018 Defined pension plan activity Currency Translation Adjustment Total Defined benefit pension plan activity Currency Translation Adjustment Total Balance at July 1 $ (5,687 ) $ (51,257 ) $ (56,944 ) $ (5,832 ) $ (50,960 ) $ (56,792 ) Other comprehensive loss before reclassifications: Loss on foreign currency translation adjustment 0 (5,897 ) (5,897 ) 0 (563 ) (563 ) Amounts reclassified from AOCI: Amortization of defined benefit pension actuarial gain (a) 108 0 108 116 0 116 Net current period other comprehensive income (loss) 108 (5,897 ) (5,789 ) 116 (563 ) (447 ) Balance at September 30 $ (5,579 ) $ (57,154 ) $ (62,733 ) $ (5,716 ) $ (51,523 ) $ (57,239 ) Nine Months Ended September 30, 2019 Nine Months Ended September 30, 2018 Defined pension plan activity Currency Translation Adjustment Total Defined benefit pension plan activity Currency Translation Adjustment Total Balance at January 1 $ (5,873 ) $ (53,710 ) $ (59,583 ) $ (6,015 ) $ (41,425 ) $ (47,440 ) Other comprehensive loss before reclassifications: Loss on foreign currency translation adjustment 0 (3,444 ) (3,444 ) 0 (10,098 ) (10,098 ) Amounts reclassified from AOCI: Amortization of defined benefit pension actuarial gain (a) 294 0 294 299 0 299 Net current period other comprehensive income (loss) 294 (3,444 ) (3,150 ) 299 (10,098 ) (9,799 ) Balance at September 30 $ (5,579 ) $ (57,154 ) $ (62,733 ) $ (5,716 ) $ (51,523 ) $ (57,239 ) (a) This AOCI component is included in the computation of net periodic pension costs.

Computation of Earnings Per Sha

Computation of Earnings Per Share	9 Months Ended
	Sep. 30, 2019
Earnings Per Share [Abstract]
Computation of Earnings Per Share	NOTE G – 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 nine months ended September 30, 2019 and 2018 was as follows: Three Months Ended September 30 Nine Months Ended September 30 2019 2018 2019 2018 Numerator Net income $ 7,951 $ 9,054 $ 17,679 $ 21,318 Denominator Determination of shares Weighted-average common shares outstanding 5,024 5,025 5,039 5,038 Dilutive effect - share-based awards 95 113 38 50 Diluted weighted-average common shares outstanding 5,119 5,138 5,077 5,088 Earnings per common share Basic $ 1.58 $ 1.80 $ 3.51 $ 4.23 Diluted $ 1.55 $ 1.76 $ 3.48 $ 4.19 For both the three and nine-month periods ended September 30, 2019, 15,000 stock options were excluded from the calculation of diluted earnings per share as the effect would have been anti-dilutive. For both of the three and nine-month periods ended September 30, 2018, no stock options were excluded from the calculation of diluted earnings per share as there was no anti-dilutive effect.

Goodwill and Other Intangibles

Goodwill and Other Intangibles	9 Months Ended
	Sep. 30, 2019
Goodwill And Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangibles	NOTE H – GOODWILL AND OTHER INTANGIBLES The Company’s finite and indefinite-lived intangible assets consist of the following: September 30, 2019 December 31, 2018 Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Finite-lived intangible assets Patents $ 4,806 $ (4,806 ) $ 4,806 $ (4,788 ) Land use rights 1,124 (258 ) 1,134 (203 ) Trademarks 1,672 (1,294 ) 1,707 (1,247 ) Technology 6,767 (1,539 ) 2,994 (1,334 ) Customer relationships 15,672 (6,928 ) 11,804 (6,415 ) $ 30,041 $ (14,825 ) $ 22,445 $ (13,987 ) Indefinite-lived intangible assets Goodwill $ 25,278 $ 15,621 At September 30, 2019, the Company’s total net Finite-lived intangible assets includes $3.9 million of Customer relationships and $3.7 million of Technology attributable to its newly acquired businesses. Refer to Note S, “Business Combinations” for further information regarding additions. The aggregate amortization expense for other intangibles with finite lives for the three and nine months ended September 30, 2019 was $.5 million and $1.1 million, respectively. The aggregate amortization expense for other intangibles with finite lives for the three and nine months ended September 30, 2018 was $.3 million and $.8 million, respectively. Amortization expense is estimated to be $1.1 million for the remaining period of 2019, $1.5 million for 2020 and $1.4 million for 2021, 2022 and 2023. The weighted-average remaining amortization period is approximately 14.8 years. The weighted-average remaining amortization period by intangible asset class is as follows: patents, 6.3 years; land use rights, 56.0 years; trademarks, 7.8; technology, 13.7 years; and customer relationships, 12.3 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 nine months ended September 30, 2019 are as follows: USA The Americas EMEA Asia-Pacific Total Balance at January 1, 2019 $ 3,078 $ 3,997 $ 1,355 $ 7,191 $ 15,621 Currency translation 101 (451 ) (403 ) (753 ) Additions 10,410 10,410 Balance at September 30, 2019 $ 3,078 $ 4,098 $ 11,314 $ 6,788 $ 25,278 The Company’s total Indefinite-lived intangible assets includes $10.4 million attributable to its newly acquired businesses. Refer to Note S, “Business Combinations” for further information regarding additions.

Share-Based Compensation

Share-Based Compensation	9 Months Ended
	Sep. 30, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Share-Based Compensation	NOTE I – SHARE-BASED COMPENSATION The 1999 Stock Option Plan Activity in the Company’s 1999 Stock Option Plan for the nine months ended September 30, 2019 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, 2019 750 $ 39.10 Granted 0 $ 0.00 Exercised 750 $ 39.10 Forfeited 0 $ 0.00 Outstanding (exercisable and vested) at September 30, 2019 0 $ 0.00 0.0 $ 0 There were 750 and -0- stock options exercised under this Plan during the nine months ended September 30, 2019 and 2018, respectively. As all stock options from the 1999 Stock Option Plan had been fully vested and exercised, the Company recorded no compensation expense related to stock options for the nine months ended September 30, 2019 and 2018. 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 underlying the awards are not issued until they vest. Dividends declared are accrued in cash. A summary of the RSUs outstanding under the LTIP for the nine months ended September 30, 2019 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, 2019 213,624 17,298 230,922 $ 76.20 Granted 65,392 8,123 73,515 56.22 Vested (75,921 ) (1,292 ) (77,213 ) 34.16 Forfeited (6,753 ) (1,068 ) (7,821 ) 68.95 Nonvested as of September 30, 2019 196,342 23,061 219,403 $ 60.86 (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. Compensation expense related to the time-based RSUs for the three and nine-month periods ended September 30, 2019 was $.2 million and $.4 million, respectively . 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. Performance-based compensation expense for the three and nine-month periods ended September 30, 2019 was $1.2 million and $2.9 million, respectively. Performance-based compensation expense for the three and nine-month periods ended September 30, 2018 was $1.3 million and $2.7 million, respectively. As of September 30, 2019, the remaining compensation expense of $4.8 million for outstanding performance-based RSU’s is expected to be recognized over a period of approximately 1.7 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 either of the nine-month periods ended September 30, 2019 and 2018. Stock option activity under the Company’s LTIP for nine months ended September 30, 2019 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, 2019 30,750 $ 56.81 Granted 0 $ 0.00 Exercised 0 $ 0.00 Forfeited 0 $ 0.00 Outstanding (vested and expected to vest) at September 30, 2019 30,750 $ 56.81 6.2 $ 136 Exercisable at September 30, 2019 24,500 $ 56.33 5.4 $ 128 There were -0- and 3,500 shares exercised during the nine-month periods ended September 30, 2019 and 2018, respectively. For the three and nine-month periods ended September 30, 2019, the Company recorded compensation expense related to the stock options currently vested of less than $.1 million and $.1 million, respectively. For both three and nine-month periods ended September 30, 2018, 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 September 30, 2019 is expected to be less than $.1 million over a weighted-average period of approximately 1.9 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 September 30, 2019, 267,641 shares have been deferred and are being held in the rabbi trust.

Fair Value of Financial Assets

Fair Value of Financial Assets and Liabilities	9 Months Ended
	Sep. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value of Financial Assets and Liabilities	NOTE J – 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 September 30, 2019 and December 31, 2018: Description Balance as of September 30, 2019 Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Liabilities: Supplemental profit sharing plan 5,334 0 5,334 0 Total Liabilities $ 5,334 $ 0 $ 5,334 $ 0 Description Balance as of December 31, 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 $ 1,648 $ 1,648 $ 0 $ 0 Total Assets $ 1,648 $ 1,648 $ 0 $ 0 Liabilities: Supplemental profit sharing plan 4,946 0 4,946 0 Total Liabilities $ 4,946 $ 0 $ 4,946 $ 0 The Company has a non-qualified Supplemental Profit Sharing Plan for its executives. The liability for this unfunded Supplemental Profit Sharing Plan was $5.3 million at September 30, 2019 and $4.9 million at December 31, 2018. These amounts are 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 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. In order to mitigate the risk associated with the Supplemental Profit Sharing Plan, the Company had invested in marketable securities, principally equity-based mutual funds, which were all transferred to the Company’s Corporate Owned Life Insurance Policy (“COLI”) in April 2019. The balance in the marketable securities of $0 million and $1.6 million were reported at fair value within Other current assets on the Company’s consolidated balance sheets as of September 30, 2019 and December 31, 2018, respectively. At September 30, 2019 and December 31, 2018, the cash surrender value of the COLI was $5.4 million and $2.8 million, respectively, and is recorded in Other assets on the Company’s consolidated balance sheet. Changes in the fair value of the securities of $.0 million and $.2 million were recognized within Other income, net within the consolidated statements of income for the three and nine-month periods ended September 30, 2019, respectively. Changes in the fair value of the securities of less than $.1 million and $.1 million were recognized within Other income, net within the consolidated statements of income for the three and nine-month periods ended September 30, 2018, respectively.

Recently Adopted Accounting Pro

Recently Adopted Accounting Pronouncements	9 Months Ended
	Sep. 30, 2019
Accounting Changes And Error Corrections [Abstract]
Recently Adopted Accounting Pronouncements	NOTE K – RECENTLY ADOPTED ACCOUNTING PRONOUNCEMENTS In August 2018, the SEC issued Final Rule Release No. 33-10532, “Disclosure Update and Simplification,” which makes a number of changes meant to simplify interim disclosures. The new rule requires a presentation of the changes in shareholders’ equity and noncontrolling interest in the form of a reconciliation, either as a separate financial statement or in the notes to the financial statements, for the current and comparative year-to-date interim periods. The Company adopted the new disclosure requirements for the period ending September 30, 2019. The additional components of this release did not have a material impact on the Company’s consolidated financial statements. 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” (“ASU 2018-02”) which gives the entity the option to reclassify to retained earnings the tax effect resulting the U.S. Tax Cuts and Jobs Act of 2017 (“Tax Act”) related items that the FASB refers to as having been stranded in accumulated other comprehensive income (“OCI”). The Company adopted ASU 2018-02 effective January 1, 2019 and did not elect the option to reclassify to retained earnings the tax effects resulting from the Tax Act that are stranded in OCI. The adoption of this new guidance did not have a material effect 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 for leases classified as operating leases under previous guidance. 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, the lessee is permitted to make an accounting policy election by class of underlying asset to not recognize an asset and corresponding liability. The lessee is also 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. This ASU was applied using a modified retrospective adoption method with the option of applying the guidance either retrospectively to each prior comparative reporting period presented or retrospectively at the beginning of the period of adoption, effective January 1, 2019. The Company applied the transitional package of practical expedients allowed by the standard to not reassess the identification, classification and initial direct costs of leases commencing before this ASU's effective date, however, the Company did not elect the hindsight transitional practical expedient. The Company also applied the practical expedient to not separate lease and non-lease components to new leases as well as existing leases through transition. The Company also elected the practical expedient allowed under “Leases (Topic 842)” to exclude leases with a term of twelve months or less form the calculation of the lease liabilities and right-of-use assets. In July 2018, the FASB issued ASU 2018-11, “Targeted Improvements to ASC 842,” which includes an option to not restate comparative periods in transition and elect to use the effective date of ASC 842 as the initial application of transition. The amendments in Topic 842 are effective for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2018, with early adoption permitted. The Company has finalized its policy elections, the discount rate used and data to support recognition and disclosure under the new standard. The adoption of this ASU resulted in an initial recognition of right-of-use assets and corresponding current and long-term lease obligations, on a discounted basis, of its lease obligations of $10.4 million on the Company’s balance sheet at January 1, 2019. Refer to Note Q “Leases” for additional details regarding the Company’s leases as of September 30. 2019. The adoption of ASU 842 did not have a material impact on the Company’s results of operations, cash flows or debt covenants.

New Accounting Standards to be

New Accounting Standards to be Adopted	9 Months Ended
	Sep. 30, 2019
Accounting Changes And Error Corrections [Abstract]
New Accounting Standards to be Adopted	NOTE L – NEW ACCOUNTING STANDARDS TO BE ADOPTED The Company considers the applicability and impact of all ASUs. Recently issued ASUs that are not listed below were assessed and determined to be not applicable in the current reporting period. In August 2018, the FASB issued ASU 2018-13, “Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement,” which will modify the disclosure requirements on fair value measurements in Topic 820, Fair Value Measurement, including the removal of certain disclosure requirements. The amendments in ASU 2018-13 are effective for all entities for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. Early adoption is permitted. An entity is permitted to early adopt any removed or modified disclosures upon issuance of the ASU and delay adoption of the additional disclosures until the effective date. The Company is currently evaluating what impact its adoption, effective January 1, 2020, will have to the presentation of the Company’s consolidated financial statements. In June 2016, the FASB issued ASU 2016-13, “Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”). ASU 2016-13 changes how entities will measure credit losses for most financial assets and other instruments that are not measured at fair value through net income. This update introduces the current expected credit loss (CECL) model, which will require an entity to measure credit losses for certain financial instruments and financial assets, including trade receivables. Under this update, on initial recognition and at each reporting period, an entity will be required to recognize an allowance that reflects the entity’s current estimate of credit losses expected to be incurred over the life of the financial instrument. ASU 2016-13 is effective for public companies in fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. The Company is currently evaluating what impact its adoption, effective January 1, 2020, will have to the presentation of the Company’s consolidated financial statements.

Segment Information

Segment Information	9 Months Ended
	Sep. 30, 2019
Segment Reporting [Abstract]
Segment Information	NOTE M – SEGMENT INFORMATION The following tables present a summary of the Company’s reportable segments for the three and nine months ended September 30, 2019 and 2018. Financial results for the PLP-USA segment include the elimination of all segments’ intercompany profit in inventory. Three Months Ended September 30 Nine Months Ended September 30 2019 2018 2019 2018 Net sales PLP-USA $ 47,617 $ 46,189 $ 135,411 $ 128,296 The Americas 19,663 14,662 51,142 52,217 EMEA 21,132 18,273 59,376 54,756 Asia-Pacific 30,805 29,289 85,283 80,198 Total net sales $ 119,217 $ 108,413 $ 331,212 $ 315,467 Intersegment sales PLP-USA $ 3,440 $ 4,862 $ 7,868 $ 9,296 The Americas 2,149 2,622 5,905 7,204 EMEA 335 510 898 1,350 Asia-Pacific 3,572 3,409 10,699 8,681 Total intersegment sales $ 9,496 $ 11,403 $ 25,370 $ 26,531 Income taxes PLP-USA $ 1,333 $ (1,968 ) $ 2,585 $ (743 ) The Americas 901 213 1,948 2,581 EMEA 496 230 574 889 Asia-Pacific 483 327 1,195 663 Total income taxes $ 3,213 $ (1,198 ) $ 6,302 $ 3,390 Net income attributable to Preformed Line Products Company shareholders PLP-USA $ 3,246 $ 6,200 $ 7,442 $ 9,759 The Americas 2,565 811 5,188 6,611 EMEA 853 805 2,171 2,729 Asia-Pacific 1,287 1,238 2,878 2,219 Total net income attributable to Preformed Line Products Company shareholders $ 7,951 $ 9,054 $ 17,679 $ 21,318 September 30, 2019 December 31, 2018 Assets PLP-USA $ 132,197 $ 118,171 The Americas 73,453 69,764 EMEA 92,667 57,263 Asia-Pacific 126,687 113,599 Total identifiable assets $ 425,004 $ 358,797

Income Taxes

Income Taxes	9 Months Ended
	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Income Taxes	NOTE N – INCOME TAXES The Company’s effective tax rate was 29% and (15%) for the three months ended September 30, 2019 and 2018, respectively, and 26% and 14% for the nine months ended September 30, 2019 and 2018, respectively. As described in Note K, effective January 1, 2019, the Company adopted the new guidance under ASU 2018-02 and has elected not to reclassify the income tax effects of the Tax Act from accumulated other comprehensive income to retained earnings . 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 periods ended September 30, 2019 and 2018. During the nine-month period ended September 30, 2019, the Company recorded $.1 million of unrecognized tax benefits and as of September 30, 2019, the Company had $.1 million in total unrecognized tax benefits. The Company does not anticipate any significant changes to its gross unrecognized tax benefits within the next twelve months. The Company previously considered the majority of the earnings in non-U.S. subsidiaries to be permanently reinvested and accordingly did not record any associated deferred income taxes on such earnings. The Company intends to continue to invest most or all of these earnings, as well as its capital in these subsidiaries, indefinitely outside of the U.S. and does not expect to incur any significant additional taxes related to such amounts.

Product Warranty Reserve

Product Warranty Reserve	9 Months Ended
	Sep. 30, 2019
Guarantees [Abstract]
Product Warranty Reserve	NOTE O – 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: Nine Months Ended September 30 2019 2018 Beginning of period balance $ 928 $ 1,076 Additions charged to income 692 103 Warranty usage (293 ) (156 ) Currency translation (46 ) (74 ) End of period balance $ 1,281 $ 949

Debt Arrangements

Debt Arrangements	9 Months Ended
	Sep. 30, 2019
Debt Disclosure [Abstract]
Debt Arrangements	NOTE P – 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, at which point the LIBOR spread becomes 1.500%. At September 30, 2019, the Company’s Polish subsidiary had borrowed $4.7 million U.S. dollars at a rate of 1.125% plus the Warsaw Interbank Offer Rate with a term expiring June 30, 2021. At September 30, 2019, the Company’s Australian subsidiary had borrowed $5.7 million U.S. dollars, also with a term expiring June 30, 2021. At September 30, 2019, the interest rates on the U.S., Polish and Australian line of credit agreement were 3.141%, 2.765% and 2.155%, respectively. Under the credit facility, at September 30, 2019, the Company had utilized $32.1 million with $32.9 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 September 30, 2019, the Company was in compliance with these covenants. On February 28, 2019, the Company acquired its Austrian subsidiary, SubCon Electrical Fittings GmbH (“SubCon”), headquartered in Dornbirn, Austria. The Company’s Austrian subsidiary has a $1.0 million euros, or $1.1 million U.S. dollars line of credit with a term expiration of May 31, 2020 with the option to renew for an additional twelve months indefinitely. At September 30, 2019, the Company’s Austrian subsidiary had borrowed $.6 million on the line of credit at an interest rate of 1.400%. On April 25, 2019, the Company borrowed $8.0 million U.S. dollars on behalf of its Indonesian subsidiary at a rate of 3.501% with a term expiring on April 30, 2024. At September 30, 2019, $7.7 million was outstanding on this debt facility, of which $.8 million is classified as current. On August 14, 2019, the Company’s New Zealand subsidiary borrowed $5.3 million U.S. dollars at a rate of 3.900% with a term expiring on August 26, 2021. At September 30, 2019, $5.2 million was outstanding on this facility, of which $.5 million is classified as current. This loan is secured by the Company’s New Zealand subsidiary’s land and building. For both periods ended September 30, 2019 and December 31, 2018, the Company’s Asia Pacific segment had $.3 million in restricted cash used to secure bank debt. The restricted cash is shown on the balance sheet in Other assets.

Leases

Leases	9 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Leases	NOTE Q – LEASES The Company adopted guidance effective in ASU 2016-02, “Leases (Topic 842)” on January 1, 2019. Adoption of this guidance did not change the Company’s balance sheet or income statement recognition of finance leases. As a result of adopting this guidance, the Company recorded short and long-term lease liabilities and corresponding right-of-use assets related to its operating leases. The Company regularly enters into leases in the normal course of business. As of September 30, 2019, the leases in effect were related to land, buildings, vehicles, office equipment and other production equipment under operating leases with lease terms of up to 99 years. The Company often has the option to renew lease terms for buildings and other assets. The exercise of lease renewal options are generally at the Company’s sole discretion. In addition, certain lease arrangements may be terminated prior to their original expiration date at the Company’s discretion. The Company evaluates renewal and termination options at the lease commencement date to determine if the Company is reasonably certain to exercise the option on the basis of economic factors. The weighted average remaining lease term for the Company’s operating and financing leases as of September 30, 2019 was 17.2 and 2.7, respectively. Lease expense is recognized for these leases on a straight-line basis over the lease term with variable lease payments recognized in the period those payments are incurred. The components of operating and finance lease costs are recognized in Costs and expenses and Interest expense, respectively, on the Company’s Consolidated Statements of Income. The Company’s operating and finance lease costs for the three and nine months ended September 30, 2019 were as follows: Three Months Ended September 30, 2019 Nine Months Ended September 30, 2019 Components of lease expense Operating lease cost $ 859 $ 2,338 Finance lease cost Amortization of right-of-use assets 17 51 Interest on lease liabilities 2 8 Total lease cost $ 878 $ 2,397 The discount rate implicit within each lease is often not determinable and, therefore, the Company establishes the discount rate based on its incremental borrowing rate. The incremental borrowing rate for the Company’s leases is determined based on lease term and currency in which lease payments are made, adjusted for impacts of collateral. The weighted average discount rate used to measure the Company’s operating and finance lease liabilities as of September 30, 2019 was 4.53% and 5.14%, respectively. Future maturities of the Company’s lease liabilities as of September 30, 2019 are as follows: Operating Leases Finance Leases 2019 $ 644 $ 27 2020 2,268 107 2021 1,880 44 2022 1,503 25 2023 and thereafter 9,602 20 Total lease payments $ 15,897 $ 223 Less amount of lease payment representing interest 5,441 11 Total present value of lease payments $ 10,456 $ 212 The total minimum sublease rentals under noncancelable subleases to be received through 2023 is $3.9 million. Supplemental cash flow information related to leases for the three-month period ended September 30, 2019 was as follows: Nine Months Ended September 30, 2019 Supplemental cash flow information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 4,610 Operating cash flows from finance leases 8 Financing cash flows from finance leases 74

Related Party Transactions

Related Party Transactions	9 Months Ended
	Sep. 30, 2019
Related Party Transactions [Abstract]
Related Party Transactions	NOTE R – RELATED PARTY TRANSACTIONS On February 6, 2019, the Company purchased 36,413 shares of the Company from current Officers at a price per share of $56.44, which was calculated from a 30-day average market price in connection with the vesting of equity awards. The Audit Committee of the Board of Directors approved this transaction. On July 2, 2019, the Company purchased 952 shares of the Company from a retired Officer at a price per share of $51.20, which was calculated from a 30-day average market price in connection with the vesting of equity awards. The Audit Committee of the Board of Directors approved this transaction.

Business Combinations

Business Combinations	9 Months Ended
	Sep. 30, 2019
Business Combinations [Abstract]
Business Combinations	NOTE S – BUSINESS COMBINATIONS The Company accounts for business combinations using the acquisition method of accounting and, accordingly, the assets and liabilities of the acquired entities are recorded at their estimated fair values at the date of acquisition. On February 28, 2019, the Company acquired 100% of SubCon. Subcon is headquartered in Dornbirn, Austria with manufacturing operations in Brno, Czech Republic. The acquisition of SubCon will strengthen the Company’s position in the global substation market and will expand its operational presence in Europe. The total purchase price was $10.2 million in cash, net of $1.8 million in cash acquired. The preliminary purchase price was predominantly allocated to Goodwill of $7.0 million and Intangible assets of $4.7 million with useful lives of 15 years. SubCon’s overall purchase price includes an estimated liability of .9 million Euros for an earn-out consideration with a potential maximum payment of 4.0 million Euros that will be considered for remeasurement during each reporting period as the operating results of SubCon are evaluated on an Income before income taxes basis over a four-year period. The earnout of $.9 million Euros is recorded in Other noncurrent liabilities on the Company’s consolidated balance sheet. The values related to the acquisition are preliminary and subject to final opening balance sheet adjustments. On April 1, 2019, the Company acquired MICOS Telcom s.r.o (“MICOS Telcom”) headquartered in Prostějov, Czech Republic. The acquisition of MICOS Telcom will strengthen the Company’s position in the global telecom market and will also expand its operational presence in Europe. The total purchase price was $8.8 million in cash, net of $.5 million in cash acquired, including a hold-back liability of $1.5 million payable in two years from the date of purchase. The hold-back liability is recorded in Other noncurrent liabilities on the Company’s consolidated balance sheet. The preliminary purchase price was predominantly allocated to Goodwill of $3.4 million, Intangible assets of $3.5 million and Property, plant and equipment of $1.9 million. During the quarter ended June 30, 2019, the Intangible assets of $3.5 million were included in Goodwill. The Intangible assets included in the acquisition of MICOS have useful lives of 15 years. The values related to the acquisition are preliminary and subject to final opening balance sheet adjustments. The operating results and financial position of both SubCon and MICOS Telcom are included in the Company’s EMEA reportable segment as of their respective dates of acquisition. Pro-forma results of the Company’s consolidated operations for the three and nine-month periods ended September 30, 2019 and 2018 would not have been materially different from reported results and are therefore not presented. The purchase price was preliminarily allocated based on information available at the date of acquisition and is subject to change as the Company completes its analysis of the fair values of the assets and liabilities assumed at the acquisition date during the remeasurement period as defined under FASB Accounting Standards Codification 805, Business Combinations. The following table summarizes the preliminary fair values of the assets acquired and liabilities assumed at the acquisition date: Assets acquired Current assets, net of cash $ 5,976 Property, plant and equipment 2,669 Goodwill 10,403 Finite-lived intangible assets 8,144 Other long-term assets 1,883 Total assets acquired $ 29,075 Liabilities assumed (10,181 ) Net assets acquired $ 18,894

Revenue (Policies)

Revenue (Policies)	9 Months Ended
	Sep. 30, 2019
Accounting Policies [Abstract]
Revenue Recognition	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.

Revenue (Tables)

Revenue (Tables)	9 Months Ended
	Sep. 30, 2019
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 September 30, 2019 Product Type PLP-USA The Americas EMEA Asia-Pacific Consolidated Energy 63 % 72 % 54 % 75 % 66 % Communications 29 26 34 5 23 Special Industries 8 2 12 20 11 Total 100 % 100 % 100 % 100 % 100 % Three Months Ended September 30, 2018 Product Type PLP-USA The Americas EMEA Asia-Pacific Consolidated Energy 60 % 51 % 63 % 68 % 61 % Communications 33 44 25 4 26 Special Industries 7 5 12 28 13 Total 100 % 100 % 100 % 100 % 100 % Nine Months Ended September 30, 2019 Product Type PLP-USA The Americas EMEA Asia-Pacific Consolidated Energy 63 % 67 % 59 % 68 % 64 % Communications 30 29 27 7 24 Special Industries 7 4 14 25 12 Total 100 % 100 % 100 % 100 % 100 % Nine Months Ended September 30, 2018 Product Type PLP-USA The Americas EMEA Asia-Pacific Consolidated Energy 59 % 70 % 73 % 72 % 66 % Communications 35 26 13 4 22 Special Industries 6 4 14 24 12 Total 100 % 100 % 100 % 100 % 100 %

Other Financial Statement Inf_2

Other Financial Statement Information (Tables)	9 Months Ended
	Sep. 30, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Inventories - Net	Inventories – net September 30, 2019 December 31, 2018 Raw materials $ 48,948 $ 43,041 Work-in-process 10,926 8,818 Finished Goods 40,945 42,163 100,819 94,022 Excess of current cost over LIFO cost (4,978 ) (4,474 ) Noncurrent portion of inventory (3,614 ) (4,289 ) $ 92,227 $ 85,259
Property, Plant and Equipment - Net	Major classes of Property, plant and equipment are stated at cost and were as follows: September 30, 2019 December 31, 2018 Land and improvements $ 18,380 $ 12,552 Buildings and improvements 81,896 74,743 Machinery, equipment and aircraft 179,503 171,015 Construction in progress 6,356 3,392 286,135 261,702 Less accumulated depreciation (168,438 ) (158,747 ) $ 117,697 $ 102,955

Share Holders Equity (Tables)

Share Holders Equity (Tables)	9 Months Ended
	Sep. 30, 2019
Equity [Abstract]
Summary of Changes in Shareholders Equity	The following table reflects the changes in shareholders equity for the three and nine months ended September 30, 2019 and 2018: Accumulated Other Comprehensive Income (Loss) Common Shares Common Shares Issued to Rabbi Trust Deferred Compensation Liability Paid in Capital Retained Earnings Treasury Shares Cumulative Translation Adjustment Unrecognized Pension Benefit Cost Total Preformed Line Products Company Equity Noncontrolling Interests Total Equity (In thousands, except share and per share data) Balance at December 31, 2018 $ 12,662 $ (11,008 ) $ 11,008 $ 34,401 $ 334,170 $ (72,280 ) $ (53,710 ) $ (5,873 ) $ 249,370 $ 0 $ 249,370 Net income 1,824 1,824 1,824 Foreign currency translation adjustment 1,353 1,353 1,353 Recognized net actuarial gain, net of tax provision of $32 93 93 93 Total comprehensive income 3,270 3,270 Share-based compensation 928 (36 ) 892 892 Purchase of 40,891 common shares (2,294 ) (2,294 ) (2,294 ) Issuance of 78,821 common shares 159 (18 ) 141 141 Common shares issued to rabbi trust of 705, net (30 ) 30 0 0 Cash dividends declared – $.20 per share (165 ) (1,011 ) (1,176 ) (1,176 ) Balance at March 31, 2019 $ 12,821 $ (11,038 ) $ 11,038 $ 35,146 $ 334,947 $ (74,574 ) $ (52,357 ) $ (5,780 ) $ 250,203 $ 0 $ 250,203 Net income 7,904 7,904 (39 ) 7,865 Foreign currency translation adjustment 1,100 1,100 1,100 Recognized net actuarial gain, net of tax provision of $31 93 93 93 Total comprehensive income 9,097 (39 ) 9,058 Share-based compensation 1,028 (43 ) 985 985 Purchase of 29,724 common shares (1,456 ) (1,456 ) (1,456 ) Issuance of 525 common shares 1 26 27 27 Common shares issued to rabbi trust of 525, net (28 ) 28 0 0 Cash dividends declared – $.20 per share (1,004 ) (1,004 ) (1,004 ) Balance at June 30, 2019 $ 12,822 $ (11,066 ) $ 11,066 $ 36,200 $ 341,804 $ (76,030 ) $ (51,257 ) $ (5,687 ) $ 257,852 $ (39 ) $ 257,813 Net income 7,951 7,951 93 8,044 Foreign currency translation adjustment (5,897 ) (5,897 ) (5,897 ) Recognized net actuarial gain, net of tax provision of $32 108 108 108 Total comprehensive income 2,162 93 2,255 Share-based compensation 1,388 (43 ) 1,345 1,345 Purchase of 15,150 common shares (751 ) (751 ) (751 ) Issuance of 1,262 common shares 3 54 57 57 Common shares distributed from rabbi trust of 3,219, net 85 (85 ) 0 0 Cash dividends declared – $.20 per share (1,002 ) (1,002 ) (1,002 ) Balance at September 30, 2019 $ 12,825 $ (10,981 ) $ 10,981 $ 37,642 $ 348,710 $ (76,781 ) $ (57,154 ) $ (5,579 ) $ 259,663 $ 54 $ 259,717 Accumulated Other Comprehensive Income (Loss) Common Shares Common Shares Issued to Rabbi Trust Deferred Compensation Liability Paid in Capital Retained Earnings Treasury Shares Cumulative Translation Adjustment Unrecognized Pension Benefit Cost Total Equity (In thousands, except share and per share data) Balance at December 31, 2017 $ 12,593 $ (11,834 ) $ 11,834 $ 29,734 $ 311,765 $ (68,115 ) $ (41,425 ) $ (6,015 ) $ 238,537 Net income 5,528 5,528 Foreign currency translation adjustment 3,832 3,832 Recognized net actuarial gain, net of tax provision of $30 91 91 Total comprehensive income 9,451 Share-based compensation 790 (9 ) 781 Purchase of 10,907 common shares (833 ) (833 ) Issuance of 21,458 common shares 42 52 94 Common shares issued to rabbi trust of 112, net (15 ) 15 0 Cash dividends declared - $.20 per share (1,009 ) (1,009 ) Balance at March 31, 2018 $ 12,635 $ (11,849 ) $ 11,849 $ 30,576 $ 316,275 $ (68,948 ) $ (37,593 ) $ (5,924 ) $ 247,021 Net income 6,735 6,735 Foreign currency translation adjustment (13,367 ) (13,367 ) Recognized net actuarial gain, net of tax provision of $29 92 92 Total comprehensive income (6,540 ) Share-based compensation 1,994 (49 ) 1,945 Purchase of 13,500 common shares (981 ) (981 ) Issuance of 1,730 common shares 4 4 Common shares distributed from rabbi trust of 19,780, net 861 (861 ) 0 Cash dividends declared - $.20 per share (913 ) (1,007 ) (1,920 ) Balance at June 30, 2018 $ 12,639 $ (10,988 ) $ 10,988 $ 31,657 $ 321,954 $ (69,929 ) $ (50,960 ) $ (5,832 ) $ 239,529 Net income 9,054 9,054 Foreign currency translation adjustment (563 ) (563 ) Recognized net actuarial gain, net of tax provision of $35 116 116 Total comprehensive income 8,607 Share-based compensation 1,421 (17 ) 1,404 Purchase of 27,141 common shares (2,313 ) (2,313 ) Issuance of 272 common shares 4 206 210 Common shares issued to rabbi trust of 272, net (20 ) 20 0 Cash dividends declared - $.20 per share (1,032 ) (1,032 ) Balance at September 30, 2018 $ 12,643 $ (11,008 ) $ 11,008 $ 33,284 $ 329,959 $ (72,242 ) $ (51,523 ) $ (5,716 ) $ 246,405

Pension Plans (Tables)

Pension Plans (Tables)	9 Months Ended
	Sep. 30, 2019
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 September 30 Nine Months Ended September 30 2019 2018 2019 2018 Service cost $ 130 $ 22 $ 225 $ 188 Interest cost 350 346 1,058 1,012 Expected return on plan assets (483 ) (612 ) (1,459 ) (1,603 ) Recognized net actuarial loss 140 151 390 393 Net periodic pension cost (benefit) $ 137 $ (93 ) $ 214 $ (10 )

Accumulated Other Comprehensi_2

Accumulated Other Comprehensive Income ("AOCI") (Tables)	9 Months Ended
	Sep. 30, 2019
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 September 30, 2019 Three Months Ended September 30, 2018 Defined pension plan activity Currency Translation Adjustment Total Defined benefit pension plan activity Currency Translation Adjustment Total Balance at July 1 $ (5,687 ) $ (51,257 ) $ (56,944 ) $ (5,832 ) $ (50,960 ) $ (56,792 ) Other comprehensive loss before reclassifications: Loss on foreign currency translation adjustment 0 (5,897 ) (5,897 ) 0 (563 ) (563 ) Amounts reclassified from AOCI: Amortization of defined benefit pension actuarial gain (a) 108 0 108 116 0 116 Net current period other comprehensive income (loss) 108 (5,897 ) (5,789 ) 116 (563 ) (447 ) Balance at September 30 $ (5,579 ) $ (57,154 ) $ (62,733 ) $ (5,716 ) $ (51,523 ) $ (57,239 ) Nine Months Ended September 30, 2019 Nine Months Ended September 30, 2018 Defined pension plan activity Currency Translation Adjustment Total Defined benefit pension plan activity Currency Translation Adjustment Total Balance at January 1 $ (5,873 ) $ (53,710 ) $ (59,583 ) $ (6,015 ) $ (41,425 ) $ (47,440 ) Other comprehensive loss before reclassifications: Loss on foreign currency translation adjustment 0 (3,444 ) (3,444 ) 0 (10,098 ) (10,098 ) Amounts reclassified from AOCI: Amortization of defined benefit pension actuarial gain (a) 294 0 294 299 0 299 Net current period other comprehensive income (loss) 294 (3,444 ) (3,150 ) 299 (10,098 ) (9,799 ) Balance at September 30 $ (5,579 ) $ (57,154 ) $ (62,733 ) $ (5,716 ) $ (51,523 ) $ (57,239 ) (a) This AOCI component is included in the computation of net periodic pension costs.

Computation of Earnings Per S_2

Computation of Earnings Per Share (Tables)	9 Months Ended
	Sep. 30, 2019
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 nine months ended September 30, 2019 and 2018 was as follows: Three Months Ended September 30 Nine Months Ended September 30 2019 2018 2019 2018 Numerator Net income $ 7,951 $ 9,054 $ 17,679 $ 21,318 Denominator Determination of shares Weighted-average common shares outstanding 5,024 5,025 5,039 5,038 Dilutive effect - share-based awards 95 113 38 50 Diluted weighted-average common shares outstanding 5,119 5,138 5,077 5,088 Earnings per common share Basic $ 1.58 $ 1.80 $ 3.51 $ 4.23 Diluted $ 1.55 $ 1.76 $ 3.48 $ 4.19

Goodwill and Other Intangibles

Goodwill and Other Intangibles (Tables)	9 Months Ended
	Sep. 30, 2019
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: September 30, 2019 December 31, 2018 Gross Carrying Amount Accumulated Amortization Gross Carrying Amount Accumulated Amortization Finite-lived intangible assets Patents $ 4,806 $ (4,806 ) $ 4,806 $ (4,788 ) Land use rights 1,124 (258 ) 1,134 (203 ) Trademarks 1,672 (1,294 ) 1,707 (1,247 ) Technology 6,767 (1,539 ) 2,994 (1,334 ) Customer relationships 15,672 (6,928 ) 11,804 (6,415 ) $ 30,041 $ (14,825 ) $ 22,445 $ (13,987 ) Indefinite-lived intangible assets Goodwill $ 25,278 $ 15,621
Changes in Carrying Amount of Goodwill by Segment	The changes in the carrying amount of goodwill, by segment, for the nine months ended September 30, 2019 are as follows: USA The Americas EMEA Asia-Pacific Total Balance at January 1, 2019 $ 3,078 $ 3,997 $ 1,355 $ 7,191 $ 15,621 Currency translation 101 (451 ) (403 ) (753 ) Additions 10,410 10,410 Balance at September 30, 2019 $ 3,078 $ 4,098 $ 11,314 $ 6,788 $ 25,278

Share-Based Compensation (Table

Share-Based Compensation (Tables)	9 Months Ended
	Sep. 30, 2019
Summary of RSUs Outstanding Under LTIP	A summary of the RSUs outstanding under the LTIP for the nine months ended September 30, 2019 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, 2019 213,624 17,298 230,922 $ 76.20 Granted 65,392 8,123 73,515 56.22 Vested (75,921 ) (1,292 ) (77,213 ) 34.16 Forfeited (6,753 ) (1,068 ) (7,821 ) 68.95 Nonvested as of September 30, 2019 196,342 23,061 219,403 $ 60.86 (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 nine months ended September 30, 2019 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, 2019 30,750 $ 56.81 Granted 0 $ 0.00 Exercised 0 $ 0.00 Forfeited 0 $ 0.00 Outstanding (vested and expected to vest) at September 30, 2019 30,750 $ 56.81 6.2 $ 136 Exercisable at September 30, 2019 24,500 $ 56.33 5.4 $ 128
Stock Options [Member]
Stock Option Activity in Company's Plan	Activity in the Company’s 1999 Stock Option Plan for the nine months ended September 30, 2019 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, 2019 750 $ 39.10 Granted 0 $ 0.00 Exercised 750 $ 39.10 Forfeited 0 $ 0.00 Outstanding (exercisable and vested) at September 30, 2019 0 $ 0.00 0.0 $ 0

Fair Value of Financial Asset_2

Fair Value of Financial Assets and Liabilities (Tables)	9 Months Ended
	Sep. 30, 2019
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 September 30, 2019 and December 31, 2018: Description Balance as of September 30, 2019 Quoted Prices in Active Markets for Identical Assets or Liabilities (Level 1) Significant Other Observable Inputs (Level 2) Significant Unobservable Inputs (Level 3) Liabilities: Supplemental profit sharing plan 5,334 0 5,334 0 Total Liabilities $ 5,334 $ 0 $ 5,334 $ 0 Description Balance as of December 31, 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 $ 1,648 $ 1,648 $ 0 $ 0 Total Assets $ 1,648 $ 1,648 $ 0 $ 0 Liabilities: Supplemental profit sharing plan 4,946 0 4,946 0 Total Liabilities $ 4,946 $ 0 $ 4,946 $ 0

Segment Information (Tables)

Segment Information (Tables)	9 Months Ended
	Sep. 30, 2019
Segment Reporting [Abstract]
Summary of Company's Reportable Segments	The following tables present a summary of the Company’s reportable segments for the three and nine months ended September 30, 2019 and 2018. Financial results for the PLP-USA segment include the elimination of all segments’ intercompany profit in inventory. Three Months Ended September 30 Nine Months Ended September 30 2019 2018 2019 2018 Net sales PLP-USA $ 47,617 $ 46,189 $ 135,411 $ 128,296 The Americas 19,663 14,662 51,142 52,217 EMEA 21,132 18,273 59,376 54,756 Asia-Pacific 30,805 29,289 85,283 80,198 Total net sales $ 119,217 $ 108,413 $ 331,212 $ 315,467 Intersegment sales PLP-USA $ 3,440 $ 4,862 $ 7,868 $ 9,296 The Americas 2,149 2,622 5,905 7,204 EMEA 335 510 898 1,350 Asia-Pacific 3,572 3,409 10,699 8,681 Total intersegment sales $ 9,496 $ 11,403 $ 25,370 $ 26,531 Income taxes PLP-USA $ 1,333 $ (1,968 ) $ 2,585 $ (743 ) The Americas 901 213 1,948 2,581 EMEA 496 230 574 889 Asia-Pacific 483 327 1,195 663 Total income taxes $ 3,213 $ (1,198 ) $ 6,302 $ 3,390 Net income attributable to Preformed Line Products Company shareholders PLP-USA $ 3,246 $ 6,200 $ 7,442 $ 9,759 The Americas 2,565 811 5,188 6,611 EMEA 853 805 2,171 2,729 Asia-Pacific 1,287 1,238 2,878 2,219 Total net income attributable to Preformed Line Products Company shareholders $ 7,951 $ 9,054 $ 17,679 $ 21,318 September 30, 2019 December 31, 2018 Assets PLP-USA $ 132,197 $ 118,171 The Americas 73,453 69,764 EMEA 92,667 57,263 Asia-Pacific 126,687 113,599 Total identifiable assets $ 425,004 $ 358,797

Product Warranty Reserve (Table

Product Warranty Reserve (Tables)	9 Months Ended
	Sep. 30, 2019
Guarantees [Abstract]
Roll Forward of Product Warranty Reserve	The following is a rollforward of the product warranty reserve: Nine Months Ended September 30 2019 2018 Beginning of period balance $ 928 $ 1,076 Additions charged to income 692 103 Warranty usage (293 ) (156 ) Currency translation (46 ) (74 ) End of period balance $ 1,281 $ 949

Leases (Tables)

Leases (Tables)	9 Months Ended
	Sep. 30, 2019
Leases [Abstract]
Summary of Components of Lease Expense	The Company’s operating and finance lease costs for the three and nine months ended September 30, 2019 were as follows: Three Months Ended September 30, 2019 Nine Months Ended September 30, 2019 Components of lease expense Operating lease cost $ 859 $ 2,338 Finance lease cost Amortization of right-of-use assets 17 51 Interest on lease liabilities 2 8 Total lease cost $ 878 $ 2,397
Schedule of Future Maturities of Lease Liabilities	Future maturities of the Company’s lease liabilities as of September 30, 2019 are as follows: Operating Leases Finance Leases 2019 $ 644 $ 27 2020 2,268 107 2021 1,880 44 2022 1,503 25 2023 and thereafter 9,602 20 Total lease payments $ 15,897 $ 223 Less amount of lease payment representing interest 5,441 11 Total present value of lease payments $ 10,456 $ 212
Summary of Supplemental Cash Flow Information Related to Leases	Supplemental cash flow information related to leases for the three-month period ended September 30, 2019 was as follows: Nine Months Ended September 30, 2019 Supplemental cash flow information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from operating leases $ 4,610 Operating cash flows from finance leases 8 Financing cash flows from finance leases 74

Business Combinations (Tables)

Business Combinations (Tables)	9 Months Ended
	Sep. 30, 2019
Business Combinations [Abstract]
Summary of Preliminary Fair Values of Assets Acquired and Liabilities Assumed	The following table summarizes the preliminary fair values of the assets acquired and liabilities assumed at the acquisition date: Assets acquired Current assets, net of cash $ 5,976 Property, plant and equipment 2,669 Goodwill 10,403 Finite-lived intangible assets 8,144 Other long-term assets 1,883 Total assets acquired $ 29,075 Liabilities assumed (10,181 ) Net assets acquired $ 18,894

Revenue - Revenues by Segment a

Revenue - Revenues by Segment and Product Type (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	100.00%	100.00%	100.00%	100.00%
Energy [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	66.00%	61.00%	64.00%	66.00%
Communications [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	23.00%	26.00%	24.00%	22.00%
Special Industries [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	11.00%	13.00%	12.00%	12.00%
PLP-USA [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	100.00%	100.00%	100.00%	100.00%
PLP-USA [Member] | Energy [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	63.00%	60.00%	63.00%	59.00%
PLP-USA [Member] | Communications [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	29.00%	33.00%	30.00%	35.00%
PLP-USA [Member] | Special Industries [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	8.00%	7.00%	7.00%	6.00%
The Americas [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	100.00%	100.00%	100.00%	100.00%
The Americas [Member] | Energy [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	72.00%	51.00%	67.00%	70.00%
The Americas [Member] | Communications [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	26.00%	44.00%	29.00%	26.00%
The Americas [Member] | Special Industries [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	2.00%	5.00%	4.00%	4.00%
EMEA [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	100.00%	100.00%	100.00%	100.00%
EMEA [Member] | Energy [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	54.00%	63.00%	59.00%	73.00%
EMEA [Member] | Communications [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	34.00%	25.00%	27.00%	13.00%
EMEA [Member] | Special Industries [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	12.00%	12.00%	14.00%	14.00%
Asia-Pacific [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	100.00%	100.00%	100.00%	100.00%
Asia-Pacific [Member] | Energy [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	75.00%	68.00%	68.00%	72.00%
Asia-Pacific [Member] | Communications [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	5.00%	4.00%	7.00%	4.00%
Asia-Pacific [Member] | Special Industries [Member]
Disaggregation Of Revenue [Line Items]
Percentage of disaggregated revenue	20.00%	28.00%	25.00%	24.00%

Other Financial Statement Inf_3

Other Financial Statement Information - Inventories - Net (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Inventory Disclosure [Abstract]
Raw materials	$ 48,948	$ 43,041
Work-in-process	10,926	8,818
Finished Goods	40,945	42,163
Inventory, gross	100,819	94,022
Excess of current cost over LIFO cost	(4,978)	(4,474)
Noncurrent portion of inventory	(3,614)	(4,289)
Inventories - net	$ 92,227	$ 85,259

Other Financial Statement Inf_4

Other Financial Statement Information - Additional Information (Detail) - USD ($) $ in Millions	Jun. 01, 2018	Nov. 02, 2016	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Inventory Disclosure [Abstract]
Cost of inventories for certain materials using LIFO method			$ 30.3		$ 30.3		$ 29.5
Expense (benefit) charge to earnings from LIFO inventory changes			$ 0.1	$ 0.6	$ 0.5	$ 1.1
Name of plaintiff					Altalink, L.P.
Complaint filling date					November 2016
Estimated damages from defendants	$ 29.4	$ 56

Other Financial Statement Inf_5

Other Financial Statement Information - Property, Plant and Equipment - Net (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Property, plant and equipment - Gross	$ 286,135	$ 261,702
Less accumulated depreciation	(168,438)	(158,747)
Property, plant and equipment - Net	117,697	102,955
Land and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment - Gross	18,380	12,552
Buildings and Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment - Gross	81,896	74,743
Machinery, Equipment and Aircraft [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment - Gross	179,503	171,015
Construction in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment - Gross	$ 6,356	$ 3,392

Shareholders Equity - Summary o

Shareholders Equity - Summary of Changes in Shareholders Equity (Detail) - USD ($) $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018
Stockholders Equity Note [Line Items]
Beginning Balance	$ 257,813	$ 250,203	$ 249,370	$ 239,529	$ 247,021	$ 238,537	$ 249,370	$ 238,537
Net income	8,044	7,865	1,824	9,054	6,735	5,528	17,733	21,318
Foreign currency translation adjustment	(5,897)	1,100	1,353	(563)	(13,367)	3,832	(3,444)	(10,098)
Recognized net actuarial gain, net of tax provision	108	93	93	116	92	91	294	299
Total comprehensive income	2,255	9,058	3,270	8,607	(6,540)	9,451
Share-based compensation	1,345	985	892	1,404	1,945	781
Purchase of common shares	(751)	(1,456)	(2,294)	(2,313)	(981)	(833)
Issuance of common shares	57	27	141	210	4	94
Common shares issued to rabbi trust	0	0	0	0	0	0
Cash dividends declared per share	(1,002)	(1,004)	(1,176)	(1,032)	(1,920)	(1,009)
Ending Balance	259,717	257,813	250,203	246,405	239,529	247,021	259,717	246,405
Common Shares [Member]
Stockholders Equity Note [Line Items]
Beginning Balance	12,822	12,821	12,662	12,639	12,635	12,593	12,662	12,593
Issuance of common shares	3	1	159	4	4	42
Ending Balance	12,825	12,822	12,821	12,643	12,639	12,635	12,825	12,643
Common Shares Issued to Rabbi Trust [Member]
Stockholders Equity Note [Line Items]
Beginning Balance	(11,066)	(11,038)	(11,008)	(10,988)	(11,849)	(11,834)	(11,008)	(11,834)
Common shares issued to rabbi trust	85	(28)	(30)	(20)	861	(15)
Ending Balance	(10,981)	(11,066)	(11,038)	(11,008)	(10,988)	(11,849)	(10,981)	(11,008)
Deferred Compensation Liability [Member]
Stockholders Equity Note [Line Items]
Beginning Balance	11,066	11,038	11,008	10,988	11,849	11,834	11,008	11,834
Common shares issued to rabbi trust	(85)	28	30	20	(861)	15
Ending Balance	10,981	11,066	11,038	11,008	10,988	11,849	10,981	11,008
Paid In Capital [Member]
Stockholders Equity Note [Line Items]
Beginning Balance	36,200	35,146	34,401	31,657	30,576	29,734	34,401	29,734
Share-based compensation	1,388	1,028	928	1,421	1,994	790
Issuance of common shares	54	26	(18)	206		52
Cash dividends declared per share			(165)		(913)
Ending Balance	37,642	36,200	35,146	33,284	31,657	30,576	37,642	33,284
Retained Earnings [Member]
Stockholders Equity Note [Line Items]
Beginning Balance	341,804	334,947	334,170	321,954	316,275	311,765	334,170	311,765
Net income	7,951	7,904	1,824	9,054	6,735	5,528
Share-based compensation	(43)	(43)	(36)	(17)	(49)	(9)
Cash dividends declared per share	(1,002)	(1,004)	(1,011)	(1,032)	(1,007)	(1,009)
Ending Balance	348,710	341,804	334,947	329,959	321,954	316,275	348,710	329,959
Treasury Stock [Member]
Stockholders Equity Note [Line Items]
Beginning Balance	(76,030)	(74,574)	(72,280)	(69,929)	(68,948)	(68,115)	(72,280)	(68,115)
Purchase of common shares	(751)	(1,456)	(2,294)	(2,313)	(981)	(833)
Ending Balance	(76,781)	(76,030)	(74,574)	(72,242)	(69,929)	(68,948)	(76,781)	(72,242)
Cumulative Translation Adjustment [Member]
Stockholders Equity Note [Line Items]
Beginning Balance	(51,257)	(52,357)	(53,710)	(50,960)	(37,593)	(41,425)	(53,710)	(41,425)
Foreign currency translation adjustment	(5,897)	1,100	1,353	(563)	(13,367)	3,832
Ending Balance	(57,154)	(51,257)	(52,357)	(51,523)	(50,960)	(37,593)	(57,154)	(51,523)
Unrecognized Pension Benefit Cost [Member]
Stockholders Equity Note [Line Items]
Beginning Balance	(5,687)	(5,780)	(5,873)	(5,832)	(5,924)	(6,015)	(5,873)	(6,015)
Recognized net actuarial gain, net of tax provision	108	93	93	116	92	91
Ending Balance	(5,579)	(5,687)	(5,780)	$ (5,716)	$ (5,832)	$ (5,924)	(5,579)	$ (5,716)
Total Preformed Line Products, Company Equity [Member]
Stockholders Equity Note [Line Items]
Beginning Balance	257,852	250,203	249,370				249,370
Net income	7,951	7,904	1,824
Foreign currency translation adjustment	(5,897)	1,100	1,353
Recognized net actuarial gain, net of tax provision	108	93	93
Total comprehensive income	2,162	9,097	3,270
Share-based compensation	1,345	985	892
Purchase of common shares	(751)	(1,456)	(2,294)
Issuance of common shares	57	27	141
Common shares issued to rabbi trust	0	0	0
Cash dividends declared per share	(1,002)	(1,004)	(1,176)
Ending Balance	259,663	257,852	250,203				259,663
Noncontrolling Interests [Member]
Stockholders Equity Note [Line Items]
Beginning Balance	(39)	0	0				0
Net income	93	(39)
Total comprehensive income	93	(39)
Ending Balance	$ 54	$ (39)	$ 0				$ 54

Shareholders Equity - Summary_2

Shareholders Equity - Summary of Changes in Shareholders Equity (Parenthetical) (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Sep. 30, 2019	Sep. 30, 2018
Stockholders Equity Note [Line Items]
Tax provision (benefit) for recognized net actuarial loss (gain)	$ (32)			$ (35)			$ (95)	$ (94)
Unrecognized Pension Benefit Cost [Member]
Stockholders Equity Note [Line Items]
Tax provision (benefit) for recognized net actuarial loss (gain)	$ 32	$ 31	$ 32	$ 35	$ 29	$ 30
Treasury Stock [Member]
Stockholders Equity Note [Line Items]
Purchase of common shares	15,150	29,724	40,891	27,141	13,500	10,907
Common Shares [Member]
Stockholders Equity Note [Line Items]
Issuance of common shares	1,262	525	78,821	272	1,730	21,458
Paid In Capital [Member]
Stockholders Equity Note [Line Items]
Issuance of common shares	1,262	525	78,821	272	1,730	21,458
Common Shares Issued to Rabbi Trust [Member]
Stockholders Equity Note [Line Items]
Common shares issued to rabbi trust	3,219	525	705	272	19,780	112
Deferred Compensation Liability [Member]
Stockholders Equity Note [Line Items]
Common shares issued to rabbi trust	3,219	525	705	272	19,780	112
Retained Earnings [Member]
Stockholders Equity Note [Line Items]
Cash dividends declared per share	$ 0.20	$ 0.20	$ 0.20	$ 0.20	$ 0.20	$ 0.20

Pension Plans - Components of N

Pension Plans - Components of Net Periodic Pension Cost (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Compensation And Retirement Disclosure [Abstract]
Service cost	$ 130	$ 22	$ 225	$ 188
Interest cost	350	346	1,058	1,012
Expected return on plan assets	(483)	(612)	(1,459)	(1,603)
Recognized net actuarial loss	140	151	390	393
Net periodic pension cost (benefit)	$ 137	$ (93)	$ 214	$ (10)

Pension Plans - Additional Info

Pension Plans - Additional Information (Detail)	9 Months Ended
	Sep. 30, 2019USD ($)
Compensation And Retirement Disclosure [Abstract]
Contribution to pension plan	$ 0
Pension plan contributions to be made during the remainder of 2019	$ 0

Accumulated Other Comprehensi_3

Accumulated Other Comprehensive Income ("AOCI") - Summary of Total Changes in AOCI by Component, Net of Tax (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance			$ 249,370
Other comprehensive loss before reclassifications:
Loss on foreign currency translation adjustment	$ (5,897)	$ (563)	(3,444)	$ (10,098)
Amounts reclassified from AOCI:
Amortization of defined benefit pension actuarial gain	108	116	294	299
Other comprehensive loss, net of tax	(5,789)	(447)	(3,150)	(9,799)
Ending Balance	259,663		259,663
Defined Benefit Pension Plan Activity [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(5,687)	(5,832)	(5,873)	(6,015)
Other comprehensive loss before reclassifications:
Loss on foreign currency translation adjustment	0	0	0	0
Amounts reclassified from AOCI:
Amortization of defined benefit pension actuarial gain	108	116	294	299
Other comprehensive loss, net of tax	108	116	294	299
Ending Balance	(5,579)	(5,716)	(5,579)	(5,716)
Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(51,257)	(50,960)	(53,710)	(41,425)
Other comprehensive loss before reclassifications:
Loss on foreign currency translation adjustment	(5,897)	(563)	(3,444)	(10,098)
Amounts reclassified from AOCI:
Amortization of defined benefit pension actuarial gain	0	0	0	0
Other comprehensive loss, net of tax	(5,897)	(563)	(3,444)	(10,098)
Ending Balance	(57,154)	(51,523)	(57,154)	(51,523)
Accumulated Other Comprehensive Loss [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(56,944)	(56,792)	(59,583)	(47,440)
Amounts reclassified from AOCI:
Ending Balance	$ (62,733)	$ (57,239)	$ (62,733)	$ (57,239)

Computation of Earnings Per S_3

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		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Numerator
Net income	$ 7,951	$ 9,054	$ 17,679	$ 21,318
Determination of shares
Weighted-average common shares outstanding	5,024	5,025	5,039	5,038
Dilutive effect - share-based awards	95	113	38	50
Diluted weighted-average common shares outstanding	5,119	5,138	5,077	5,088
Earnings per common share
Basic	$ 1.58	$ 1.80	$ 3.51	$ 4.23
Diluted	$ 1.55	$ 1.76	$ 3.48	$ 4.19

Computation of Earnings Per S_4

Computation of Earnings Per Share - Additional Information (Detail) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive shares excluded from calculation of earnings per share	15,000	0	15,000	0

Goodwill and Other Intangible_2

Goodwill and Other Intangibles - Finite and Indefinite-Lived Intangible Assets (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Finite-lived intangible assets
Gross Carrying Amount	$ 30,041	$ 22,445
Accumulated Amortization	(14,825)	(13,987)
Indefinite-lived intangible assets Goodwill	25,278	15,621
Patents [Member]
Finite-lived intangible assets
Gross Carrying Amount	4,806	4,806
Accumulated Amortization	(4,806)	(4,788)
Land Use Rights [Member]
Finite-lived intangible assets
Gross Carrying Amount	1,124	1,134
Accumulated Amortization	(258)	(203)
Trademarks [Member]
Finite-lived intangible assets
Gross Carrying Amount	1,672	1,707
Accumulated Amortization	(1,294)	(1,247)
Technology [Member]
Finite-lived intangible assets
Gross Carrying Amount	6,767	2,994
Accumulated Amortization	(1,539)	(1,334)
Customer Relationships [Member]
Finite-lived intangible assets
Gross Carrying Amount	15,672	11,804
Accumulated Amortization	$ (6,928)	$ (6,415)

Goodwill and Other Intangible_3

Goodwill and Other Intangibles - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Finite Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	$ 500	$ 300	$ 1,100	$ 800
2019	1,100		1,100
2020	1,500		1,500
2021	1,400		1,400
2022	1,400		1,400
2023	1,400		$ 1,400
Remaining amortization period			14 years 9 months 18 days
Net finite-lived intangible assets	15,216		$ 15,216		$ 8,458
Indefinite-lived intangible assets represents goodwill	25,278		25,278		$ 15,621
SubCon and MICOS Telcom [Member]
Finite Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets represents goodwill	10,403		$ 10,403
Patents [Member]
Finite Lived Intangible Assets [Line Items]
Remaining amortization period			6 years 3 months 18 days
Land Use Rights [Member]
Finite Lived Intangible Assets [Line Items]
Remaining amortization period			56 years
Trademarks [Member]
Finite Lived Intangible Assets [Line Items]
Remaining amortization period			7 years 9 months 18 days
Technology [Member]
Finite Lived Intangible Assets [Line Items]
Remaining amortization period			13 years 8 months 12 days
Technology [Member] | SubCon and MICOS Telcom [Member]
Finite Lived Intangible Assets [Line Items]
Net finite-lived intangible assets	3,700		$ 3,700
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Remaining amortization period			12 years 3 months 18 days
Customer Relationships [Member] | SubCon and MICOS Telcom [Member]
Finite Lived Intangible Assets [Line Items]
Net finite-lived intangible assets	$ 3,900		$ 3,900

Goodwill and Other Intangible_4

Goodwill and Other Intangibles - Changes in Carrying Amount of Goodwill by Segment (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2019USD ($)
Goodwill [Line Items]
Beginning Balance	$ 15,621
Currency translation	(753)
Additions	10,410
Ending Balance	25,278
USA [Member]
Goodwill [Line Items]
Beginning Balance	3,078
Ending Balance	3,078
The Americas [Member]
Goodwill [Line Items]
Beginning Balance	3,997
Currency translation	101
Ending Balance	4,098
EMEA [Member]
Goodwill [Line Items]
Beginning Balance	1,355
Currency translation	(451)
Additions	10,410
Ending Balance	11,314
Asia-Pacific [Member]
Goodwill [Line Items]
Beginning Balance	7,191
Currency translation	(403)
Ending Balance	$ 6,788

Share-Based Compensation - Acti

Share-Based Compensation - Activity in Company's Plan (Detail) - 1999 Stock Option Plan [Member] - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding at January 1, 2019, Number of Shares	750
Granted, Number of Shares	0
Exercised, Number of Shares	750	0
Forfeited, Number of Shares	0
Outstanding (exercisable and vested) at September 30, 2019, Number of Shares	0
Outstanding at January 1, 2019, Weighted Average Exercise Price per Share	$ 39.10
Granted, Weighted Average Exercise Price per Share	0
Exercised, Weighted Average Exercise Price per Share	39.10
Forfeited, Weighted Average Exercise Price per Share	0
Outstanding (exercisable and vested) at September 30, 2019, Weighted Average Exercise Price per Share	$ 0
Outstanding (exercisable and vested), Weighted Average Remaining Contractual Term	0 years
Outstanding (exercisable and vested) Aggregate Intrinsic Value	$ 0

Share-Based Compensation - Addi

Share-Based Compensation - Additional Information (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2019USD ($)shares	Sep. 30, 2018USD ($)	Sep. 30, 2019USD ($)Deferralshares	Sep. 30, 2018USD ($)shares	Dec. 31, 2018shares	May 10, 2016shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred shares and held by the rabbi trust	267,641		267,641		269,630
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
Time-Based RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation expenses | $	$ 200,000	$ 100,000	$ 400,000	$ 300,000
Compensation cost expected to be recognized over period | $	600,000		$ 600,000
Weighted-average period			1 year 9 months 18 days
Performance-Based RSUs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average period			1 year 8 months 12 days
Performance-based compensation expense (income) | $	1,200,000	1,300,000	$ 2,900,000	$ 2,700,000
Remaining compensation expense | $	$ 4,800,000		$ 4,800,000
1999 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercised, Number of Shares			750	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 and 2016 Incentive Plan [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 Plan and 2016 Incentive Plan [Member] | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option issued under plan vest and expire			10 years
Long Term Incentive Plan and 2016 Incentive Plan [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 and 2016 Incentive Plan [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 and 2016 Incentive Plan [Member] | After Three Years [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock option awards vesting percentage			100.00%
Long Term Incentive Plan Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercised, Number of Shares			0	3,500
Weighted-average period			1 year 10 months 24 days
Granted, Number of Shares			0	0
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
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)	9 Months Ended
	Sep. 30, 2019$ / sharesshares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested as of January 1, 2019	230,922
Granted	73,515
Vested	(77,213)
Forfeited	(7,821)
Nonvested as of September 30, 2019	219,403
Nonvested as of January 1, 2019, Weighted-Average Grant-Date Fair Value | $ / shares	$ 76.20
Weighted-Average Grant-Date Fair Value, Granted | $ / shares	56.22
Weighted-Average Grant-Date Fair Value, Vested | $ / shares	34.16
Weighted-Average Grant-Date Fair Value, Forfeited | $ / shares	68.95
Nonvested as of September 30, 2019, Weighted-Average Grant-Date Fair Value | $ / shares	$ 60.86
Performance and Service Required [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested as of January 1, 2019	213,624
Granted	65,392
Vested	(75,921)
Forfeited	(6,753)
Nonvested as of September 30, 2019	196,342
Service Required [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Nonvested as of January 1, 2019	17,298
Granted	8,123
Vested	(1,292)
Forfeited	(1,068)
Nonvested as of September 30, 2019	23,061

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	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding at January 1, 2019, Number of Shares	30,750
Granted, Number of Shares	0	0
Exercised, Number of Shares	0	3,500
Forfeited, Number of Shares	0
Outstanding (vested and expected to vest) at September 30, 2019, Number of Shares	30,750
Exercisable at September 30, 2019, Number of Shares	24,500
Outstanding at January 1, 2019, Weighted Average Exercise Price per Share	$ 56.81
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 (vested and expected to vest) at September 30, 2019, Weighted Average Exercise Price per Share	56.81
Exercisable at September 30, 2019, Weighted Average Exercise Price per Share	$ 56.33
Outstanding (vested and expected to vest) at September 30, 2019, Weighted Average Remaining Contractual Term	6 years 2 months 12 days
Exercisable at September 30, 2019, Weighted Average Remaining Contractual Term	5 years 4 months 24 days
Outstanding (vested and expected to vest) at September 30, 2019, Aggregate Intrinsic Value	$ 136
Exercisable at September 30, 2019, Aggregate Intrinsic Value	$ 128

Fair Value of Financial Asset_3

Fair Value of Financial Assets and Liabilities - Summary of Assets and Liabilities Recorded and Measured at Fair Value (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Marketable securities	$ 0	$ 1,648
Total Assets		1,648
Supplemental profit sharing plan	5,334	4,946
Total Liabilities	5,334	4,946
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		1,648
Total Assets		1,648
Supplemental profit sharing plan	0	0
Total Liabilities	0	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	5,334	4,946
Total Liabilities	5,334	4,946
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	0
Total Liabilities	$ 0	$ 0

Fair Value of Financial Asset_4

Fair Value of Financial Assets and Liabilities - Additional Information (Detail) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Supplemental profit sharing plan	$ 5,334,000		$ 5,334,000		$ 4,946,000
Marketable securities	0		0		1,648,000
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	0		200,000
Other Income [Member] | Maximum [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		$ 100,000
Other Assets [Member] | Corporate Owned Life Insurance Policy [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash surrender value	5,400,000		5,400,000		2,800,000
Profit Sharing Plan [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Supplemental profit sharing plan	$ 5,300,000		$ 5,300,000		$ 4,900,000

Recently Adopted Accounting P_2

Recently Adopted Accounting Pronouncements - Additional Information (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Jan. 01, 2019	Dec. 31, 2018
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Right-of-use assets	$ 12,512		$ 0
Current and long-term lease obligations	$ 10,456
ASU 842 [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Right-of-use assets		$ 10,400
Current and long-term lease obligations		$ 10,400

Segment Information - Summary o

Segment Information - Summary of Company's Reportable Segments (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Net sales
Net sales	$ 119,217	$ 108,413	$ 331,212	$ 315,467
Income taxes
Income taxes	3,213	(1,198)	6,302	3,390
Net income attributable to Preformed Line Products Company shareholders
Net income	7,951	9,054	17,679	21,318
Assets
Identifiable assets	425,004		425,004		$ 358,797
PLP-USA [Member]
Net sales
Net sales	47,617	46,189	135,411	128,296
Income taxes
Income taxes	1,333	(1,968)	2,585	(743)
Net income attributable to Preformed Line Products Company shareholders
Net income	3,246	6,200	7,442	9,759
Assets
Identifiable assets	132,197		132,197		118,171
The Americas [Member]
Net sales
Net sales	19,663	14,662	51,142	52,217
Income taxes
Income taxes	901	213	1,948	2,581
Net income attributable to Preformed Line Products Company shareholders
Net income	2,565	811	5,188	6,611
Assets
Identifiable assets	73,453		73,453		69,764
EMEA [Member]
Net sales
Net sales	21,132	18,273	59,376	54,756
Income taxes
Income taxes	496	230	574	889
Net income attributable to Preformed Line Products Company shareholders
Net income	853	805	2,171	2,729
Assets
Identifiable assets	92,667		92,667		57,263
Asia-Pacific [Member]
Net sales
Net sales	30,805	29,289	85,283	80,198
Income taxes
Income taxes	483	327	1,195	663
Net income attributable to Preformed Line Products Company shareholders
Net income	1,287	1,238	2,878	2,219
Assets
Identifiable assets	126,687		126,687		$ 113,599
Intersegment Eliminations [Member]
Net sales
Net sales	(9,496)	(11,403)	(25,370)	(26,531)
Intersegment Eliminations [Member] | PLP-USA [Member]
Net sales
Net sales	(3,440)	(4,862)	(7,868)	(9,296)
Intersegment Eliminations [Member] | The Americas [Member]
Net sales
Net sales	(2,149)	(2,622)	(5,905)	(7,204)
Intersegment Eliminations [Member] | EMEA [Member]
Net sales
Net sales	(335)	(510)	(898)	(1,350)
Intersegment Eliminations [Member] | Asia-Pacific [Member]
Net sales
Net sales	$ (3,572)	$ (3,409)	$ (10,699)	$ (8,681)

Income Taxes - Additional Infor

Income Taxes - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Income Tax Disclosure [Abstract]
Effective income tax rate	29.00%	(15.00%)	26.00%	14.00%
U.S. federal statutory tax rate	21.00%	21.00%	21.00%	21.00%
Unrecognized tax benefits	$ 0.1		$ 0.1

Product Warranty Reserve - Roll

Product Warranty Reserve - Roll Forward of Product Warranty Reserve (Detail) - Warranty Reserves [Member] - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Valuation and Qualifying Accounts Disclosure [Line Items]
Beginning of period balance	$ 928	$ 1,076
Additions charged to income	692	103
Warranty usage	(293)	(156)
Currency translation	(46)	(74)
End of period balance	$ 1,281	$ 949

Debt Arrangements - Additional

Debt Arrangements - Additional Information (Detail) € in Millions	Aug. 14, 2019USD ($)	Apr. 25, 2019USD ($)	Mar. 13, 2018USD ($)	Aug. 22, 2016	Sep. 30, 2019USD ($)	Sep. 30, 2018USD ($)	Sep. 30, 2019EUR (€)	Dec. 31, 2018USD ($)
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					$ 32,100,000
Line of credit remaining borrowing capacity					32,900,000
Proceeds from long-term debt					$ 70,730,000	$ 57,488,000
U.S. [Member]
Debt Instrument [Line Items]
Interest rate for Line of credit					3.141%		3.141%
Asia Pacific [Member]
Debt Instrument [Line Items]
Restricted cash used to secure bank debt					$ 300,000			$ 300,000
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					$ 4,700,000
Interest rate for Line of credit					2.765%		2.765%
Polish Subsidiary [Member] | Warsaw Interbank Offer Rate [Member]
Debt Instrument [Line Items]
Interest rate of LIBOR plus					1.125%
Expiration date					Jun. 30, 2021
Australian subsidiary [Member]
Debt Instrument [Line Items]
Borrowings					$ 5,700,000
Expiration date					Jun. 30, 2021
Interest rate for Line of credit					2.155%		2.155%
Austrian Subsidiary [Member]
Debt Instrument [Line Items]
Line of credit utilized borrowing capacity					$ 1,100,000		€ 1
Expiration date					May 31, 2020
Austrian Subsidiary [Member] | Line Credit [Member]
Debt Instrument [Line Items]
Proceeds from long-term debt					$ 600,000
Interest rate					1.40%		1.40%
Indonesian Subsidiary [Member]
Debt Instrument [Line Items]
Line of credit utilized borrowing capacity					$ 7,700,000
Expiration date		Apr. 30, 2024
Proceeds from long-term debt		$ 8,000,000
Interest rate		3.501%
Outstanding letters of credit, current					800,000
New Zealand Subsidiary {Member}
Debt Instrument [Line Items]
Line of credit utilized borrowing capacity					5,200,000
Expiration date	Aug. 26, 2021
Proceeds from long-term debt	$ 5,300,000
Interest rate	3.90%
Outstanding letters of credit, current					$ 500,000

Leases - Additional Information

Leases - Additional Information (Detail) $ in Millions	9 Months Ended
	Sep. 30, 2019USD ($)
Leases [Line Items]
Leases, term of description	the leases in effect were related to land, buildings, vehicles, office equipment and other production equipment under operating leases with lease terms of up to 99 years.
Finance lease, weighted average remaining lease term	2 years 8 months 12 days
Operating lease, weighted average remaining lease term	17 years 2 months 12 days
Operating lease, weighted average discount rate, percent	4.53%
Finance lease, weighted average discount rate, percent	5.14%
Total minimum sublease rentals under noncancelable subleases	$ 3.9
Maximum [Member]
Leases [Line Items]
Leases, term of contract	99 years

Leases - Summary of Components

Leases - Summary of Components of Lease Expense (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Components of lease expense
Operating lease cost	$ 859	$ 2,338
Finance lease cost
Amortization of right-of-use assets	17	51
Interest on lease liabilities	2	8
Total lease cost	$ 878	$ 2,397

Leases - Schedule of Future Mat

Leases - Schedule of Future Maturities of Lease Liabilities (Detail) $ in Thousands	Sep. 30, 2019USD ($)
Operating Leases
2019	$ 644
2020	2,268
2021	1,880
2022	1,503
2023 and thereafter	9,602
Total lease payments	15,897
Less amount of lease payment representing interest	5,441
Total present value of lease payments	10,456
Finance Leases
2019	27
2020	107
2021	44
2022	25
2023 and thereafter	20
Total lease payments	223
Less amount of lease payment representing interest	11
Total present value of lease payments	$ 212

Leases - Summary of Supplementa

Leases - Summary of Supplemental Cash Flow Information Related to Leases (Detail) $ in Thousands	9 Months Ended
	Sep. 30, 2019USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 4,610
Operating cash flows from finance leases	8
Financing cash flows from finance leases	$ 74

Related Party Transactions - Ad

Related Party Transactions - Additional Information (Detail) - $ / shares	Jul. 02, 2019	Feb. 06, 2019
Officer [Member]
Related Party Transaction [Line Items]
Purchase of shares		36,413
Shares price per share		$ 56.44
Number of trading days to be considered for average price of stock repurchased		30 days
Retired Officer [Member]
Related Party Transaction [Line Items]
Purchase of shares	952
Shares price per share	$ 51.20
Number of trading days to be considered for average price of stock repurchased	30 days

Business Combinations - Additio

Business Combinations - Additional Information (Detail) $ in Thousands, € in Millions	Apr. 01, 2019USD ($)	Feb. 28, 2019USD ($)	Feb. 28, 2019EUR (€)	Sep. 30, 2019USD ($)	Sep. 30, 2018USD ($)	Jun. 30, 2019USD ($)	Feb. 28, 2019EUR (€)	Dec. 31, 2018USD ($)
Business Acquisition [Line Items]
Payments of business, net of cash acquired				$ 18,894	$ 0
Goodwill				25,278				$ 15,621
Intangibles - net				$ 15,216				$ 8,458
SubCon [Member]
Business Acquisition [Line Items]
Business acquisition, percentage of voting interests acquired		100.00%					100.00%
Total purchase price		$ 10,200
Payments of business, net of cash acquired		1,800
Goodwill		7,000
Intangibles - net		$ 4,700
Useful lives		15 years	15 years
Purchase price estimated liability | €							€ 0.9
Potential maximum payment | €			€ 4
Remeasurement period		4 years	4 years
SubCon [Member] | Other Noncurrent Liabilities [Member]
Business Acquisition [Line Items]
Business combination earnout liability		$ 900
MICOS Telecom [Member]
Business Acquisition [Line Items]
Total purchase price	$ 8,800
Payments of business, net of cash acquired	500
Goodwill	3,400
Intangibles - net	$ 3,500
Useful lives	15 years
Business combination intangible assets included in goodwill						$ 3,500
Preliminary purchase price of plant and equipment	$ 1,900
MICOS Telecom [Member] | Other Noncurrent Liabilities [Member]
Business Acquisition [Line Items]
Business combination hold-back liability	$ 1,500
Business combination hold-back liability payable term	2 years

Business Combinations - Summary

Business Combinations - Summary of Preliminary Fair Values of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Assets acquired
Goodwill	$ 25,278	$ 15,621
SubCon and MICOS Telcom [Member]
Assets acquired
Current assets, net of cash	5,976
Property, plant and equipment	2,669
Goodwill	10,403
Finite-lived intangible assets	8,144
Other long-term assets	1,883
Total assets acquired	29,075
Liabilities assumed	(10,181)
Net assets acquired	$ 18,894