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Nature of Business and Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2018

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Summary of Warranty Expense and Write-Off Activity

A summary of warranty expense and write-off activity for the years ended December 31, 2018, 2017 and 2016 is as follows:

Year Ended December 31,		2018				2017				2016
(In thousands)
Balance at beginning of period		$	9,724			$	8,548			$	8,739
Plus: Amounts charged to cost and expenses			7,392				6,951				8,561
Less: Deductions			(8,493	)			(5,775	)			(8,752	)
Balance at end of period		$	8,623			$	9,724			$	8,548

Changes in Accumulated Other Comprehensive Income, Net of Tax by Component

The following table presents changes in accumulated other comprehensive income, net of tax, by component for the years ended December 31, 2018, 2017 and 2016:

(In thousands)		Unrealized Gains (Losses) on Available- for-Sale Securities				Unrealized Gains (Losses) on Cash Flow Hedges				Defined Benefit Plan Adjustments				Foreign Currency Adjustments				Total
Balance at December 31, 2015		$	1,932			$	—			$	(3,895	)		$	(7,006	)		$	(8,969	)
Other comprehensive income (loss) before    reclassifications			1,515				—				(1,229	)			(569	)			(283	)
Amounts reclassified from accumulated other    comprehensive income			(3,043	)			—				107				—				(2,936	)
Balance at December 31, 2016			404				—				(5,017	)			(7,575	)			(12,188	)
Other comprehensive income (loss) before    reclassifications			5,020				(619	)			451				5,999				10,851
Amounts reclassified from accumulated other    comprehensive income			(2,857	)			619				280				—				(1,958	)
Balance at December 31, 2017			2,567				—				(4,286	)			(1,576	)			(3,295	)
Other comprehensive income (loss) before    reclassifications			685				—				(3,890	)			(4,236	)			(7,441	)
Amounts reclassified to retained earnings (1)			(3,220	)			—				—				—				(3,220	)
Amounts reclassified from accumulated other    comprehensive income			(595	)			—				135				—				(460	)
Balance at December 31, 2018		$	(563	)		$	—			$	(8,041	)		$	(5,812	)		$	(14,416	)

⁽¹⁾ With the adoption of ASU 2016-01, the unrealized gains on our equity investments were reclassified to retained earnings.  See Recently Issued Accounting Standards later in Note 1 for more information.

Reclassifications Out of Accumulated Other Comprehensive Income

The following tables present the details of reclassifications out of accumulated other comprehensive income for the years ended December 31, 2018, 2017 and 2016:

(In thousands)		2018
Details about Accumulated Other Comprehensive Loss Components		Amount Reclassified from Accumulated Other Comprehensive Income				Affected Line Item in the Statement Where Net Income Is Presented
Unrealized gains on available-for-sale securities:
Net realized gain on sales of securities		$	804			Net investment gain (loss)
Defined benefit plan adjustments – actuarial losses			(196	)		(1)
Total reclassifications for the period, before tax			608
Tax expense			(148	)
Total reclassifications for the period, net of tax		$	460

⁽¹⁾ Included in the computation of net periodic pension cost. See Note 13 of Notes to Consolidated Financial Statements.

(In thousands)		2017
Details about Accumulated Other Comprehensive Loss Components		Amount Reclassified from Accumulated Other Comprehensive Income				Affected Line Item in the Statement Where Net Income Is Presented
Unrealized gains (losses) on available-for-sale securities:
Net realized gain on sales of securities		$	4,864			Net investment gain (loss)
Impairment expense			(180	)		Net investment gain (loss)
Net losses on derivatives designated as hedging instruments			(897	)		Cost of sales
Defined benefit plan adjustments – actuarial losses			(406	)		(1)
Total reclassifications for the period, before tax			3,381
Tax expense			(1,423	)
Total reclassifications for the period, net of tax		$	1,958

(0) Included in the computation of net periodic pension cost. See Note 13 of Notes to Consolidated Financial Statements.

(In thousands)		2016
Details about Accumulated Other Comprehensive Income Components		Amount Reclassified from Accumulated Other Comprehensive Income				Affected Line Item in the Statement Where Net Income Is Presented
Unrealized gains (losses) on available-for-sale securities:
Net realized gain on sales of securities		$	5,408			Net investment gain (loss)
Impairment expense			(419	)		Net investment gain (loss)
Defined benefit plan adjustments – actuarial losses			(156	)		(1)
Total reclassifications for the period, before tax			4,833
Tax expense			(1,897	)
Total reclassifications for the period, net of tax		$	2,936

(0) Included in the computation of net periodic pension cost. See Note 13 of Notes to Consolidated Financial Statements.

Tax Effects Related to the Change in Each Component of Other Comprehensive Income (Loss)

The following tables present the tax effects related to the change in each component of other comprehensive income (loss) for the years ended December 31, 2018, 2017 and 2016:

		2018
(In thousands)		Before-Tax Amount				Tax (Expense) Benefit				Net-of-Tax Amount
Unrealized gains (losses) on available-for-sale securities		$	926			$	(241	)		$	685
Reclassification adjustment for amounts related to available-for-sale investments included in net loss			(804	)			209				(595	)
Reclassification adjustment for amounts reclassed to retained earnings related to the adoption of ASU 2016-01			(4,351	)			1,131				(3,220	)
Defined benefit plan adjustments			(5,638	)			1,748				(3,890	)
Reclassification adjustment for amounts related to defined benefit plan adjustments included in net loss			196				(61	)			135
Foreign currency translation adjustment			(4,236	)			—				(4,236	)
Total Other Comprehensive Income (Loss)		$	(13,907	)		$	2,786			$	(11,121	)

		2017
(In thousands)		Before-Tax Amount				Tax (Expense) Benefit				Net-of-Tax Amount
Unrealized gains (losses) on available-for-sale securities		$	8,230			$	(3,210	)		$	5,020
Reclassification adjustment for amounts related to available-for-sale investments included in net income			(4,684	)			1,827				(2,857	)
Unrealized gains (losses) on cash flow hedges			(897	)			278				(619	)
Reclassification adjustment for amounts related to cash flow hedges included in net income			897				(278	)			619
Defined benefit plan adjustments			654				(203	)			451
Reclassification adjustment for amounts related to defined benefit plan adjustments included in net income			406				(126	)			280
Foreign currency translation adjustment			5,999				—				5,999
Total Other Comprehensive Income (Loss)		$	10,605			$	(1,712	)		$	8,893

		2016
(In thousands)		Before-Tax Amount				Tax (Expense) Benefit				Net-of-Tax Amount
Unrealized gains (losses) on available-for-sale securities		$	2,484			$	(969	)		$	1,515
Reclassification adjustment for amounts related to available-for-sale investments included in net income			(4,989	)			1,946				(3,043	)
Defined benefit plan adjustments			(1,782	)			553				(1,229	)
Reclassification adjustment for amounts related to defined benefit plan adjustments included in net income			156				(49	)			107
Foreign currency translation adjustment			(569	)			—				(569	)
Total Other Comprehensive Income (Loss)		$	(4,700	)		$	1,481			$	(3,219	)

Cash Dividends

The following table shows dividends paid to our shareholders in each quarter of 2018, 2017 and 2016.

Dividends per Common Share
		2018				2017				2016
First Quarter		$	0.09			$	0.09			$	0.09
Second Quarter		$	0.09			$	0.09			$	0.09
Third Quarter		$	0.09			$	0.09			$	0.09
Fourth Quarter		$	0.09			$	0.09			$	0.09

Schedule of Cumulative Effect of Changes made to Consolidated Balance Sheet

The cumulative effect of the changes made to our Consolidated Balance Sheet on January 1, 2018 for the adoption of ASU 2014-09 and the related ASUs was as follows:

(In thousands)		Balance at December 31, 2017						Adjustments due to ASU 2014-09							Balance at January 1, 2018
Other receivables		$	26,578						$	374						$	26,952
Deferred tax assets, net		$	23,428						$	(96		)				$	23,332
Retained earnings		$	922,178						$	278						$	922,456

Summary of Effect of Adoption of ASU 2014-09 and Related ASUs

The effect of the adoption of ASU 2014-09 and the related ASUs on our financial statements was as follows:

		As of  December 31, 2018
(In thousands)		As Reported				Balances Without Adoption of ASC 606				Effect of Adoption of ASC 606
Sales
Products		$	458,232			$	458,182			$	50
Services		$	71,045			$	67,329			$	3,716
Cost of Sales
Products		$	278,929			$	278,904			$	25
Services		$	46,783			$	44,788			$	1,995
Loss before benefit for income taxes		$	(33,371	)		$	(35,117	)		$	1,746
Benefit for income taxes		$	14,029			$	14,763			$	(734	)
Net loss		$	(19,342	)		$	(20,354	)		$	1,012

		As of  December 31, 2018
(In thousands)		As Reported				Balances Without Adoption of ASC 606				Effect of Adoption of ASC 606
Assets
Other receivables		$	36,699			$	32,933			$	3,766
Prepaid expenses and other current assets		$	10,744			$	12,739			$	(1,995	)
Inventory		$	99,848			$	99,873			$	(25	)
Liabilities
Income tax payable		$	12,518			$	13,252			$	(734	)
Equity
Retained earnings		$	883,975			$	882,963			$	1,012

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