LCI Industries (LCII) 10-Q 9 May 17 2017 Q1 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	3 Months Ended
	Mar. 31, 2017	Apr. 28, 2017
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	Q1
Entity Registrant Name	LCI INDUSTRIES
Entity Central Index Key	763,744
Trading Symbol	LCII
Entity Filer Category	Large Accelerated Filer
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		24,905,261

Condensed Consolidated Statemen

Condensed Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Income Statement [Abstract]
Net sales	$ 498,336	$ 422,798
Cost of sales	374,322	314,357
Gross profit	124,014	108,441
Selling, general and administrative expenses	64,885	52,713
Operating profit	59,129	55,728
Interest expense, net	437	476
Income before income taxes	58,692	55,252
Provision for income taxes	15,547	19,293
Net income	$ 43,145	$ 35,959
Net income per common share:
Basic (in usd per share)	$ 1.73	$ 1.46
Diluted (in usd per share)	$ 1.71	$ 1.45
Weighted average common shares outstanding:
Basic (in shares)	24,906	24,567
Diluted (in shares)	25,255	24,794

Condensed Consolidated Stateme3

Condensed Consolidated Statement Of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Consolidated net income	$ 43,145	$ 35,959
Other comprehensive income:
Net foreign currency translation adjustment		0
Other Comprehensive Income (Loss), Net of Tax	349
Total comprehensive income	$ 43,494	$ 35,959

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016
Current assets
Cash and cash equivalents	$ 64,381	$ 86,170	$ 27,917
Accounts receivable, net	131,108	57,374	104,695
Inventories, net	189,020	188,743	165,184
Prepaid expenses and other current assets	37,456	35,107	23,408
Total current assets	421,965	367,394	321,204
Fixed assets, net	178,922	172,748	150,378
Goodwill	98,105	89,198	86,112
Other intangible assets, net	114,311	112,943	109,347
Deferred taxes	26,882	31,989	29,391
Other assets	12,616	12,632	12,610
Total assets	852,801	786,904	709,042
Current liabilities
Accounts payable, trade	70,225	50,616	48,392
Dividend payable	0	0	7,344
Accrued expenses and other current liabilities	101,020	98,735	99,654
Total current liabilities	171,245	149,351	155,390
Long-term indebtedness	49,905	49,949	49,920
Other long-term liabilities	47,171	37,335	36,334
Total liabilities	268,321	236,635	241,644
Stockholders’ equity
Common stock, par value $.01 per share	276	274	272
Paid-in capital	189,536	185,981	166,772
Retained earnings	425,584	395,279	329,821
Accumulated other comprehensive loss	(1,449)	(1,798)	0
Stockholders’ equity before treasury stock	613,947	579,736	496,865
Treasury stock, at cost	(29,467)	(29,467)	(29,467)
Total stockholders’ equity	584,480	550,269	467,398
Total liabilities and stockholders’ equity	$ 852,801	$ 786,904	$ 709,042

Condensed Consolidated Balance5

Condensed Consolidated Balance Sheets (Parenthetical) - $ / shares	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016
Statement of Financial Position [Abstract]
Common stock, par value	$ 0.01	$ 0.01	$ 0.01

Condensed Consolidated Stateme6

Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net income	$ 43,145	$ 35,959
Adjustments to reconcile net income to cash flows provided by operating activities:
Depreciation and amortization	12,241	10,943
Stock-based compensation expense	3,902	3,140
Excess tax benefits from stock-based compensation	5,239	0
Other non-cash items	1,139	(166)
Changes in assets and liabilities, net of acquisitions of businesses:
Accounts receivable, net	(71,155)	(63,286)
Inventories, net	1,847	8,497
Prepaid expenses and other assets	(2,181)	(2,197)
Accounts payable, trade	18,146	18,692
Accrued expenses and other liabilities	10,433	32,116
Net cash flows provided by operating activities	22,756	43,698
Cash flows from investing activities:
Capital expenditures	(12,020)	(6,458)
Acquisitions of businesses, net of cash acquired	(10,689)	(18,100)
Proceeds from sales of fixed assets	119	234
Other investing activities	80	(151)
Net cash flows used for investing activities	(22,510)	(24,475)
Cash flows from financing activities:
Exercise of stock-based awards, net of shares tendered for payment of taxes	(7,650)	(3,196)
Proceeds from line of credit borrowings	0	81,458
Repayments under line of credit borrowings	0	(81,458)
Payment of dividends	12,442	0
Payment of contingent consideration related to acquisitions	(1,884)	(415)
Other financing activities	(59)	0
Net cash flows used for financing activities	(22,035)	(3,611)
Net (decrease) increase in cash and cash equivalents	(21,789)	15,612
Cash and cash equivalents at beginning of period	86,170	12,305
Cash and cash equivalents at end of period	64,381	27,917
Supplemental disclosure of cash flow information:
Cash paid during the period for interest	483	521
Cash paid during the period for income taxes, net of refunds	2,072	122
Purchase of property and equipment in accrued expenses	$ 2,212	$ 459

Condensed Consolidated Stateme7

Condensed Consolidated Statement Of Stockholders' Equity - 3 months ended Mar. 31, 2017 - USD ($) $ in Thousands	Total	Common Stock	Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive Loss	Treasury Stock
Beginning balance at Dec. 31, 2016	$ 550,269	$ 274	$ 185,981	$ 395,279	$ (1,798)	$ (29,467)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	43,145
Issuance of 155,641 shares of common stock pursuant to stock-based awards, net of shares tendered for payment of taxes	7,650	(2)	7,652
Stock-based compensation expense	3,902		3,902
Issuance of 63,677 deferred stock units relating to prior year compensation	6,907		6,907
Other comprehensive loss	349				349
Cash dividend ($0.50 per share)	(12,442)			(12,442)
Dividend equivalents on stock-based awards			398	(398)
Ending balance at Mar. 31, 2017	$ 584,480	$ 276	$ 189,536	$ 425,584	$ (1,449)	$ (29,467)

Condensed Consolidated Stateme8

Condensed Consolidated Statement Of Stockholders' Equity (Parenthetical)	3 Months Ended
	Mar. 31, 2017$ / sharesshares
Statement of Stockholders' Equity [Abstract]
Issuance of common stock (in shares)	155,641
Issuance of deferred stock units (in shares)	63,677
Special cash dividend (in usd per share) | $ / shares	$ 0.5

Basis Of Presentation

Basis Of Presentation	3 Months Ended
	Mar. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis Of Presentation	BASIS OF PRESENTATION The Condensed Consolidated Financial Statements include the accounts of LCI Industries and its wholly-owned subsidiaries (“LCII” and collectively with its subsidiaries, the “Company”). LCII has no unconsolidated subsidiaries. LCII, through its wholly-owned subsidiary, Lippert Components, Inc. and its subsidiaries (collectively, “Lippert Components” or “LCI”), supplies, domestically and internationally, a broad array of components for the leading original equipment manufacturers (“OEMs”) of recreational vehicles (“RVs”) and adjacent industries including buses; trailers used to haul boats, livestock, equipment and other cargo; trucks; pontoon boats; trains; manufactured homes; and modular housing . The Company also supplies components to the related aftermarkets of these industries, primarily by selling to retail dealers, wholesale distributors and service centers. At March 31, 2017 , the Company operated 49 manufacturing and distribution facilities located throughout the United States and in Canada and Italy. Most industries where the Company sells products or where its products are used historically have been seasonal and are generally at the highest levels when the weather is moderate. Accordingly, the Company’s sales and profits have generally been the highest in the second quarter and lowest in the fourth quarter. However, because of fluctuations in dealer inventories, the impact of international, national and regional economic conditions and consumer confidence on retail sales of RVs and other products for which the Company sells its components, the timing of dealer orders, and the impact of severe weather conditions on the timing of industry-wide shipments from time to time, current and future seasonal industry trends may be different than in prior years. Additionally, sales of components to the aftermarket channels of these industries tend to be counter-seasonal. The Condensed Consolidated Financial Statements presented herein have been prepared by the Company in accordance with the accounting policies described in its December 31, 2016 Annual Report on Form 10-K and should be read in conjunction with the Notes to Consolidated Financial Statements which appear in that report. All significant intercompany balances and transactions have been eliminated. Certain prior year balances have been reclassified to conform to current year presentation. The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires the Company to make estimates and judgments that affect the reported amounts of assets, liabilities, net sales and expenses, and related disclosure of contingent assets and liabilities. On an ongoing basis, the Company evaluates its estimates, including, but not limited to, those related to product returns, sales and purchase rebates, accounts receivable, inventories, goodwill and other intangible assets, net assets of acquired businesses, income taxes, warranty and product recall obligations, self-insurance obligations, lease terminations, asset retirement obligations, long-lived assets, post-retirement benefits, stock-based compensation, segment allocations, contingent consideration, environmental liabilities, contingencies and litigation. The Company bases its estimates on historical experience, other available information and various other assumptions believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities not readily apparent from other resources. Actual results and events could differ significantly from management estimates. In the opinion of management, the information furnished in this Form 10-Q reflects all adjustments necessary for a fair statement of the financial position and results of operations for the interim periods presented. The Condensed Consolidated Financial Statements have been prepared in accordance with the instructions to Form 10-Q, and therefore do not include some information necessary to conform to annual reporting requirements.

Acquisitions, Goodwill And Othe

Acquisitions, Goodwill And Other Intangible Assets	3 Months Ended
	Mar. 31, 2017
Acquisitions, Goodwill And Other Intangible Assets [Abstract]
Goodwill And Other Intangible Assets	ACQUISITIONS, GOODWILL AND OTHER INTANGIBLE ASSETS Acquisitions During the Three Months Ended March 31, 2017 Sessa Klein S.p.A. In February 2017, the Company acquired 100 percent of the outstanding shares of Sessa Klein S.p.A. (“Sessa Klein”), a manufacturer of highly engineered side window systems for both high speed and commuter trains, located near Varese, Italy. The purchase price was $8.5 million paid at closing, plus contingent consideration based on future sales by this operation. The results of the acquired business have been included primarily in the Company’s OEM Segment and in the Condensed Consolidated Statements of Income since the acquisition date. The Company is validating account balances and finalizing the valuation for the acquisition. The acquisition of this business was preliminarily recorded on the acquisition date as follows (in thousands) : Cash consideration net of cash acquired $ 5,767 Contingent consideration 4,922 Total fair value of consideration given $ 10,689 Customer relationships $ 3,189 Other identifiable intangible assets 1,329 Net tangible assets 557 Total fair value of net assets acquired $ 5,075 Goodwill (not tax deductible) $ 5,614 The customer relationships intangible asset is being amortized over its estimated useful life of 15 years . The consideration given was greater than the fair value of the net assets acquired, resulting in goodwill, because the Company anticipates the attainment of synergies and an increase in the markets for the acquired products. Acquisitions During the Three Months Ended March 31, 2016 Flair Interiors In February 2016 , the Company acquired the business and certain assets of Flair Interiors, Inc. (“Flair”), a manufacturer of RV furniture located in Goshen, Indiana. The purchase price was $8.1 million paid at closing. The results of the acquired business have been included primarily in the Company’s OEM Segment and in the Condensed Consolidated Statements of Income since the acquisition date. The acquisition of this business was recorded on the acquisition date as follows (in thousands) : Cash consideration $ 8,100 Customer relationships $ 3,700 Net other assets 2,378 Total fair value of net assets acquired $ 6,078 Goodwill (tax deductible) $ 2,022 The customer relationships intangible asset is being amortized over its estimated useful life of 15 years . The consideration given was greater than the fair value of the net assets acquired, resulting in goodwill, because the Company anticipates the attainment of synergies and an increase in the markets for the acquired products. Highwater Marine Furniture In January 2016 , the Company acquired the business and certain assets of the pontoon furniture manufacturing operation of Highwater Marine, LLC (“Highwater”), a leading manufacturer of pontoon and other recreational boats located in Elkhart, Indiana. The purchase price was $10.0 million paid at closing. The results of the acquired business have been included primarily in the Company’s OEM Segment and in the Condensed Consolidated Statements of Income since the acquisition date. The acquisition of this business was recorded on the acquisition date as follows (in thousands) : Cash consideration $ 10,000 Customer relationships $ 8,100 Net tangible assets 1,307 Total fair value of net assets acquired $ 9,407 Goodwill (tax deductible) $ 593 The customer relationships intangible asset is being amortized over its estimated useful life of 15 years . The consideration given was greater than the fair value of the net assets acquired, resulting in goodwill, because the Company anticipates leveraging its existing experience and manufacturing capacity with respect to these product lines. Goodwill Goodwill by reportable segment was as follows: (In thousands) OEM Segment Aftermarket Segment Total Net balance – December 31, 2016 $ 74,663 $ 14,535 $ 89,198 Acquisitions – 2017 5,614 — 5,614 Other 3,286 7 3,293 Net balance – March 31, 2017 $ 83,563 $ 14,542 $ 98,105 Goodwill represents the excess of the total consideration given in an acquisition of a business over the fair value of the net tangible and identifiable intangible assets acquired. Goodwill is not amortized, but instead is tested at the reporting unit level for impairment annually in November, or more frequently if certain circumstances indicate a possible impairment may exist. In conjunction with the Company’s change in reportable operating segments (see Note 11 ), goodwill was reassigned to reporting units using a relative fair value allocation. In addition, the Company completed an assessment of any potential goodwill impairment for all reporting units immediately prior to the reallocation and determined no impairment existed. Any change in the goodwill amounts resulting from foreign currency translations and purchase accounting adjustments are presented as “Other” in the above table. Project 2000 S.r.l. accounted for $3.2 million of the change in goodwill at March 31, 2017 . Other Intangible Assets Other intangible assets consisted of the following at March 31, 2017 : (In thousands) Gross Accumulated Net Estimated Useful Customer relationships $ 113,513 $ 34,704 $ 78,809 6 to 16 Patents 57,347 34,850 22,497 3 to 19 Tradenames 9,741 4,494 5,247 3 to 15 Non-compete agreements 6,076 3,230 2,846 3 to 6 Other 309 84 225 2 to 12 Purchased research and development 4,687 — 4,687 Indefinite Other intangible assets $ 191,673 $ 77,362 $ 114,311 Other intangible assets consisted of the following at December 31, 2016 : (In thousands) Gross Accumulated Net Estimated Useful Customer relationships $ 110,784 $ 32,414 $ 78,370 6 to 16 Patents 56,468 34,066 22,402 3 to 19 Tradenames 10,041 5,667 4,374 3 to 15 Non-compete agreements 5,852 2,975 2,877 3 to 6 Other 309 76 233 2 to 12 Purchased research and development 4,687 — 4,687 Indefinite Other intangible assets $ 188,141 $ 75,198 $ 112,943
Acquisitions	ACQUISITIONS, GOODWILL AND OTHER INTANGIBLE ASSETS Acquisitions During the Three Months Ended March 31, 2017 Sessa Klein S.p.A. In February 2017, the Company acquired 100 percent of the outstanding shares of Sessa Klein S.p.A. (“Sessa Klein”), a manufacturer of highly engineered side window systems for both high speed and commuter trains, located near Varese, Italy. The purchase price was $8.5 million paid at closing, plus contingent consideration based on future sales by this operation. The results of the acquired business have been included primarily in the Company’s OEM Segment and in the Condensed Consolidated Statements of Income since the acquisition date. The Company is validating account balances and finalizing the valuation for the acquisition. The acquisition of this business was preliminarily recorded on the acquisition date as follows (in thousands) : Cash consideration net of cash acquired $ 5,767 Contingent consideration 4,922 Total fair value of consideration given $ 10,689 Customer relationships $ 3,189 Other identifiable intangible assets 1,329 Net tangible assets 557 Total fair value of net assets acquired $ 5,075 Goodwill (not tax deductible) $ 5,614 The customer relationships intangible asset is being amortized over its estimated useful life of 15 years . The consideration given was greater than the fair value of the net assets acquired, resulting in goodwill, because the Company anticipates the attainment of synergies and an increase in the markets for the acquired products. Acquisitions During the Three Months Ended March 31, 2016 Flair Interiors In February 2016 , the Company acquired the business and certain assets of Flair Interiors, Inc. (“Flair”), a manufacturer of RV furniture located in Goshen, Indiana. The purchase price was $8.1 million paid at closing. The results of the acquired business have been included primarily in the Company’s OEM Segment and in the Condensed Consolidated Statements of Income since the acquisition date. The acquisition of this business was recorded on the acquisition date as follows (in thousands) : Cash consideration $ 8,100 Customer relationships $ 3,700 Net other assets 2,378 Total fair value of net assets acquired $ 6,078 Goodwill (tax deductible) $ 2,022 The customer relationships intangible asset is being amortized over its estimated useful life of 15 years . The consideration given was greater than the fair value of the net assets acquired, resulting in goodwill, because the Company anticipates the attainment of synergies and an increase in the markets for the acquired products. Highwater Marine Furniture In January 2016 , the Company acquired the business and certain assets of the pontoon furniture manufacturing operation of Highwater Marine, LLC (“Highwater”), a leading manufacturer of pontoon and other recreational boats located in Elkhart, Indiana. The purchase price was $10.0 million paid at closing. The results of the acquired business have been included primarily in the Company’s OEM Segment and in the Condensed Consolidated Statements of Income since the acquisition date. The acquisition of this business was recorded on the acquisition date as follows (in thousands) : Cash consideration $ 10,000 Customer relationships $ 8,100 Net tangible assets 1,307 Total fair value of net assets acquired $ 9,407 Goodwill (tax deductible) $ 593 The customer relationships intangible asset is being amortized over its estimated useful life of 15 years . The consideration given was greater than the fair value of the net assets acquired, resulting in goodwill, because the Company anticipates leveraging its existing experience and manufacturing capacity with respect to these product lines. Goodwill Goodwill by reportable segment was as follows: (In thousands) OEM Segment Aftermarket Segment Total Net balance – December 31, 2016 $ 74,663 $ 14,535 $ 89,198 Acquisitions – 2017 5,614 — 5,614 Other 3,286 7 3,293 Net balance – March 31, 2017 $ 83,563 $ 14,542 $ 98,105 Goodwill represents the excess of the total consideration given in an acquisition of a business over the fair value of the net tangible and identifiable intangible assets acquired. Goodwill is not amortized, but instead is tested at the reporting unit level for impairment annually in November, or more frequently if certain circumstances indicate a possible impairment may exist. In conjunction with the Company’s change in reportable operating segments (see Note 11 ), goodwill was reassigned to reporting units using a relative fair value allocation. In addition, the Company completed an assessment of any potential goodwill impairment for all reporting units immediately prior to the reallocation and determined no impairment existed. Any change in the goodwill amounts resulting from foreign currency translations and purchase accounting adjustments are presented as “Other” in the above table. Project 2000 S.r.l. accounted for $3.2 million of the change in goodwill at March 31, 2017 . Other Intangible Assets Other intangible assets consisted of the following at March 31, 2017 : (In thousands) Gross Accumulated Net Estimated Useful Customer relationships $ 113,513 $ 34,704 $ 78,809 6 to 16 Patents 57,347 34,850 22,497 3 to 19 Tradenames 9,741 4,494 5,247 3 to 15 Non-compete agreements 6,076 3,230 2,846 3 to 6 Other 309 84 225 2 to 12 Purchased research and development 4,687 — 4,687 Indefinite Other intangible assets $ 191,673 $ 77,362 $ 114,311 Other intangible assets consisted of the following at December 31, 2016 : (In thousands) Gross Accumulated Net Estimated Useful Customer relationships $ 110,784 $ 32,414 $ 78,370 6 to 16 Patents 56,468 34,066 22,402 3 to 19 Tradenames 10,041 5,667 4,374 3 to 15 Non-compete agreements 5,852 2,975 2,877 3 to 6 Other 309 76 233 2 to 12 Purchased research and development 4,687 — 4,687 Indefinite Other intangible assets $ 188,141 $ 75,198 $ 112,943

Inventories

Inventories	3 Months Ended
	Mar. 31, 2017
Inventory Disclosure [Abstract]
Inventories	INVENTORIES Inventories, valued at the lower of cost (first-in, first-out (FIFO) method) or market, consisted of the following at: March 31, December 31, (In thousands) 2017 2016 2016 Raw materials $ 156,363 $ 136,310 $ 155,044 Work in process 9,004 7,859 7,509 Finished goods 23,653 21,015 26,190 Inventories, net $ 189,020 $ 165,184 $ 188,743

Fixed Assets

Fixed Assets	3 Months Ended
	Mar. 31, 2017
Property, Plant and Equipment [Abstract]
Fixed Assets	FIXED ASSETS Fixed assets consisted of the following at: March 31, December 31, (In thousands) 2017 2016 2016 Fixed assets, at cost $ 350,081 $ 298,355 $ 337,362 Less accumulated depreciation and amortization 171,159 147,977 164,614 Fixed assets, net $ 178,922 $ 150,378 $ 172,748

Notes Receivable

Notes Receivable	3 Months Ended
	Mar. 31, 2017
Receivables [Abstract]
Notes Receivable	NOTES RECEIVABLE In April 2014, the Company entered into a six -year aluminum extrusion supply agreement, and concurrently sold certain aluminum extrusion-related assets. In connection with the sale, the Company received $0.3 million at closing and a $7.2 million note receivable collectible over the next four years , recorded at its present value of $6.4 million on the date of closing. During 2014 - 2016, the Company received installments of $5.8 million under the note. At March 31, 2017 , the present value of the remaining amount due under the note receivable was $1.4 million , included in prepaid expenses and other current assets. In July 2015, the Company agreed to terminate the supply agreement, and as consideration the Company received a $2.0 million note receivable collectible in 2019 and 2020. The Company recorded this note receivable at its present value of $1.6 million and a corresponding gain. At March 31, 2017 , the present value of the remaining amount due under the note receivable was $1.8 million , included in other assets.

Accrued Expenses And Other Curr

Accrued Expenses And Other Current Liabilities	3 Months Ended
	Mar. 31, 2017
Payables and Accruals [Abstract]
Accrued Expenses And Other Current Liabilities	ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES Accrued expenses and other current liabilities consisted of the following at: March 31, December 31, (In thousands) 2017 2016 2016 Employee compensation and benefits $ 31,202 $ 30,900 $ 47,459 Current portion of accrued warranty 20,397 18,185 20,393 Taxes payable 14,624 17,508 41 Customer rebates 10,440 9,735 9,329 Other 24,357 23,326 21,513 Accrued expenses and other current liabilities $ 101,020 $ 99,654 $ 98,735 Estimated costs related to product warranties are accrued at the time products are sold. In estimating its future warranty obligations, the Company considers various factors, including the Company’s (i) historical warranty costs, (ii) current trends, (iii) product mix, and (iv) sales. The following table provides a reconciliation of the activity related to the Company’s accrued warranty, including both the current and long-term portions, for the three months ended March 31 : (In thousands) 2017 2016 Balance at beginning of period $ 32,393 $ 26,204 Provision for warranty expense 5,306 5,477 Warranty liability from acquired businesses — 125 Warranty costs paid (4,590 ) (3,692 ) Balance at end of period 33,109 28,114 Less long-term portion 12,712 9,929 Current portion of accrued warranty $ 20,397 $ 18,185

Long-Term Indebtedness

Long-Term Indebtedness	3 Months Ended
	Mar. 31, 2017
Debt Disclosure [Abstract]
Long-Term Indebtedness	LONG-TERM INDEBTEDNESS At March 31, 2017 and 2016 , and December 31, 2016 , the Company had no outstanding borrowings on its line of credit. On April 27, 2016, the Company announced the refinancing of its line of credit through an agreement with JPMorgan Chase Bank, N.A., Wells Fargo Bank, N.A., Bank of America, N.A., and 1st Source Bank. The agreement amended and restated the existing line of credit, which now expires on April 27, 2021 (the “Amended Credit Agreement”). In connection with this amendment and restatement, the line of credit was increased from $100.0 million to $200.0 million , and contains a feature allowing the Company to draw up to $50.0 million in approved foreign currencies, including Australian dollars, Canadian dollars, pound sterling and euros. The maximum borrowings under the line of credit can be further increased by $125.0 million , subject to certain conditions. Interest on borrowings under the line of credit is designated from time to time by the Company as either (i) the Alternate Base Rate (defined in the Amended Credit Agreement as the greatest of (a) the Prime Rate of JPMorgan Chase, (b) the federal funds effective rate plus 0.5 percent and (c) the Adjusted LIBO Rate (as defined in the Amended Credit Agreement) for a one month interest period plus 1.0 percent ), plus additional interest ranging from 0.0 percent to 0.625 percent ( 0.0 percent at March 31, 2017 ) depending on the Company’s performance and financial condition, or (ii) the Adjusted LIBO Rate for a period equal to one, two, three, six or twelve months as selected by the Company, plus additional interest ranging from 1.0 percent to 1.625 percent ( 1.0 percent at March 31, 2017 ) depending on the Company’s performance and financial condition. At March 31, 2017 and 2016 , the Company had $2.5 million and $2.6 million , respectively, in issued, but undrawn, standby letters of credit under the line of credit. Availability under the Company’s line of credit was $197.5 million at March 31, 2017 . On February 24, 2014, the Company entered into a $150.0 million “shelf-loan” facility with Prudential Investment Management, Inc. and its affiliates (“Prudential”) . On March 20, 2015, the Company issued $50.0 million of Senior Promissory Notes (“Series A Notes”) to Prudential for a term of five years, at a fixed interest rate of 3.35 percent per annum, payable quarterly in arrears, of which the entire amount was outstanding at March 31, 2017 . At March 31, 2017 , the fair value of the Company’s long-term debt approximates the carrying value, as estimated using quoted market prices and discounted future cash flows based on similar borrowing arrangements. On March 30, 2017, the Company amended the “shelf-loan” facility to extend the term through March 30, 2020. In connection with this amendment, the facility provides for Prudential to consider purchasing, at the Company’s request, in one or a series of transactions, Senior Promissory Notes of the Company in the aggregate principal amount of up to $150.0 million (excluding the Company’s Series A Notes already outstanding). Prudential has no obligation to purchase the Senior Promissory Notes. Interest payable on the Senior Promissory Notes will be at rates determined by Prudential within five business days after the Company issues a request to Prudential. Availability under the Company’s “shelf-loan” facility was $150.0 million at March 31, 2017 . However, the Amended Credit Agreement limits the aggregate indebtedness outstanding to Prudential from time to time to $150.0 million ; therefore, currently the Company can only access an additional $100 million under the shelf-loan facility. The Company is currently discussing a proposed amendment to the Amended Credit Agreement with JPMorgan Chase and the other lenders to address this limitation. Borrowings under both the line of credit and the “shelf-loan” facility are secured on a pari-passu basis by first priority liens on the capital stock or other equity interests of the Company’s direct and indirect subsidiaries (including up to 65 percent of the equity interest of certain “controlled foreign corporations.”) Pursuant to the Amended Credit Agreement and “shelf-loan” facility, the Company is required to maintain minimum interest and fixed charge coverages, and to meet certain other financial requirements. At March 31, 2017 and 2016 , the Company was in compliance with all such requirements, and expects to remain in compliance for the next twelve months. Availability under both the Amended Credit Agreement and the “shelf-loan” facility is subject to a maximum leverage ratio covenant which limits the amount of consolidated outstanding indebtedness to 2.5 times the trailing twelve-month EBITDA, as defined. This limitation did not impact the Company’s borrowing availability at March 31, 2017 . The remaining availability under these facilities was $297.5 million at March 31, 2017 . The Company believes the availability under the Amended Credit Agreement and “shelf-loan” facility is adequate to finance the Company’s anticipated cash requirements for the next twelve months.

Commitments And Contingencies

Commitments And Contingencies	3 Months Ended
	Mar. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Commitments And Contingencies	COMMITMENTS AND CONTINGENCIES Contingent Consideration In connection with several business acquisitions, if certain sales targets for the acquired products are achieved, the Company would pay additional cash consideration. The Company has recorded a liability for the fair value of this contingent consideration at March 31, 2017 and 2016 , based on the present value of the expected future cash flows using a market participant’s weighted average cost of capital of 13.7 percent and 13.9 percent , respectively. As required, the liability for this contingent consideration is measured at fair value quarterly, considering actual sales of the acquired products, updated sales projections, and the updated market participant weighted average cost of capital. Depending upon the weighted average costs of capital and future sales of the products which are subject to contingent consideration, the Company could record adjustments in future periods. The following table provides a reconciliation of the Company’s contingent consideration liability for the three months ended March 31 : (In thousands) 2017 2016 Balance at beginning of period $ 9,241 $ 10,840 Acquisitions 4,922 — Payments (1,884 ) (415 ) Accretion (a) 292 239 Fair value adjustments (a) 815 (366 ) Balance at end of the period (b) 13,386 10,298 Less current portion in accrued expenses and other current liabilities (5,797 ) (5,073 ) Total long-term portion in other long-term liabilities $ 7,589 $ 5,225 (a) Recorded in selling, general and administrative expense in the Condensed Consolidated Statements of Income. (b) Amounts represent the fair value of estimated remaining payments. The total estimated remaining payments as of March 31, 2017 are $17.8 million undiscounted. The liability for contingent consideration expires at various dates through September 2029. Certain of the contingent consideration arrangements are subject to a maximum payment amount, while the remaining arrangements have no maximum contingent consideration. Furrion Distribution and Supply Agreement In July 2015, the Company entered into a six -year exclusive distribution and supply agreement with Furrion Limited (“Furrion”), a Hong Kong based firm that designs, engineers and supplies premium electronics. This agreement provides the Company with the rights to distribute Furrion’s complete line of products to OEMs and aftermarket customers in the RV, specialty vehicle, utility trailer, horse trailer, marine, transit bus and school bus industries throughout the United States and Canada. Furrion currently supplies a premium line of televisions, sound systems, navigation systems, wireless backup cameras, solar prep units, power solutions and kitchen appliances, primarily to the RV industry. In connection with this agreement, the Company entered into the following minimum purchase obligations (“MPOs”), which the Company anticipates will be revised from time to time: July 2016 - June 2017 $ 90 million July 2017 - June 2018 $127 million July 2018 - June 2019 $172 million Furrion and the Company agreed to review these MPOs after the first year on an annual basis and adjust the MPOs as necessary based upon current economic and industry conditions, the development and customer acceptance of new Furrion products, competition and other factors which impact demand for Furrion products. Subject to agreed upon revisions to the MPOs, Furrion has the right to either terminate the distribution agreement with six months’ notice or remove exclusivity from the Company if the Company misses an MPO in any given year by more than ten percent, after taking into account excess purchases from the previous year. If exclusivity is withdrawn, the Company at its election may terminate the distribution agreement with six months’ notice. Upon termination of the agreement, Furrion has agreed to purchase from the Company any non-obsolete stocks of Furrion products at the cost paid by the Company. Product Recalls From time to time, the Company cooperates with and assists its customers on their product recalls and inquiries, and occasionally receives inquiries directly from the National Highway Traffic Safety Administration (“NHTSA”) regarding reported incidents involving the Company’s products. As a result, the Company has incurred expenses associated with product recalls from time to time, and may incur expenditures for future investigations or product recalls. Environmental The Company’s operations are subject to certain Federal, state and local regulatory requirements relating to the use, storage, discharge and disposal of hazardous materials used during the manufacturing processes. Although the Company believes its operations have been consistent with prevailing industry standards, and are in substantial compliance with applicable environmental laws and regulations, one or more of the Company’s current or former operating sites, or adjacent sites owned by third-parties, have been affected by releases of hazardous materials. As a result, the Company may incur expenditures for future investigation and remediation of these sites, including in conjunction with voluntary remediation programs or third party claims. Litigation In the normal course of business, the Company is subject to proceedings, lawsuits, regulatory agency inquiries and other claims. All such matters are subject to uncertainties and outcomes that are not predictable with assurance. While these matters could materially affect operating results when resolved in future periods, it is management’s opinion that, after final disposition, including anticipated insurance recoveries in certain cases, any monetary liability or financial impact to the Company beyond that provided in the Condensed Consolidated Balance Sheet as of March 31, 2017 , would not be material to the Company’s financial position or annual results of operations.

Stockholders' Equity

Stockholders' Equity	3 Months Ended
	Mar. 31, 2017
Stockholders' Equity Note [Abstract]
Stockholders' Equity	STOCKHOLDERS’ EQUITY The following table summarizes information about shares of the Company’s common stock at: March 31, December 31, (In thousands) 2017 2016 2016 Common stock authorized 75,000 75,000 75,000 Common stock issued 27,590 27,189 27,434 Treasury stock 2,684 2,684 2,684 The following reconciliation details the denominator used in the computation of basic and diluted earnings per share: Three Months Ended (In thousands) 2017 2016 Weighted average shares outstanding for basic earnings per share 24,906 24,567 Common stock equivalents pertaining to stock-based awards 349 227 Weighted average shares outstanding for diluted earnings per share 25,255 24,794 The weighted average diluted shares outstanding for the three months ended March 31, 2017 and 2016 , exclude the effect of 143,270 and 242,174 shares of common stock, respectively, subject to stock-based awards. Such shares were excluded from total diluted shares because they were anti-dilutive or the specified performance conditions those shares were subject to were not yet achieved. In 2016, the Company initiated the payment of regular quarterly dividends. The table below summarizes the regular quarterly dividends declared and paid during the periods ended March 31, 2017 and December 31, 2016 : (In thousands, except per share data) Per Share Record Date Payment Date Total Paid First Quarter 2016 $ 0.30 04/01/16 04/15/16 $ 7,344 Second Quarter 2016 0.30 06/06/16 06/17/16 7,363 Third Quarter 2016 0.30 08/19/16 09/02/16 7,371 Fourth Quarter 2016 0.50 11/28/16 12/09/16 12,359 Total 2016 $ 1.40 $ 34,437 First Quarter 2017 $ 0.50 03/06/17 03/17/17 $ 12,442 In February 2017 , the Company issued 63,677 deferred stock units at the average price of $108.47 , or $6.9 million , to executive officers in lieu of cash for a portion of their 2016 incentive compensation. In February 2016 , the Company issued 4,784 deferred stock units at the average price of $55.22 , or $0.3 million , to executive officers in lieu of cash for a portion of their 2015 incentive compensation.

Fair Value Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value Measurements	FAIR VALUE MEASUREMENTS Recurring The following table presents the Company’s assets and liabilities measured at fair value on a recurring basis at: March 31, 2017 December 31, 2016 (In thousands) Total Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Assets Unrealized gain on derivative $ 1,728 $ — $ 1,728 $ — $ 2,296 $ — $ 2,296 $ — Liabilities Contingent consideration $ 13,386 $ — $ — $ 13,386 $ 9,241 $ — $ — $ 9,241 Contingent Consideration Related to Acquisitions Liabilities for contingent consideration related to acquisitions were fair valued using management’s projections for long-term sales forecasts, including assumptions regarding market share gains and future industry-specific economic and market conditions, and a market participant’s weighted average cost of capital. Over the next six years , the Company’s long-term sales growth forecasts for products subject to contingent consideration arrangements average approximately 14 percent per year. For further information on the inputs used in determining the fair value, and a roll-forward of the contingent consideration liability, see Note 8 of the Notes to Condensed Consolidated Financial Statements. Changes in either of the inputs in isolation would result in a change in the fair value measurement. A change in the assumptions used for sales forecasts would result in a directionally similar change in the fair value liability, while a change in the weighted average cost of capital would result in a directionally opposite change in the fair value liability. If there is an increase in the fair value liability, the Company would record a charge to selling, general and administrative expenses, and if there is a decrease in the fair value liability, the Company would record a benefit in selling, general and administrative expenses. Derivative Instruments At March 31, 2017 , the Company had derivative instruments for 33.6 million pounds of steel, in order to manage a portion of the exposure to movements associated with steel costs. These derivative instruments expire through December 2018, at an average steel price of $0.25 per pound. While these derivative instruments are considered to be economic hedges of the underlying movement in the price of steel, they are not designated or accounted for as a hedge. These derivative instruments were valued at fair value using a market approach based on the quoted market prices of similar instruments at the end of each reporting period, and the resulting net loss was recorded in selling, general and administrative expenses in the Condensed Consolidated Statements of Income. At March 31, 2017 , the $1.7 million corresponding asset was recorded in other current assets as reflected in the Condensed Consolidated Balance Sheets. A net loss of $0.6 million was recorded in cost of sales in the Condensed Consolidated Statements of Income during the three months ended March 31, 2017 . Non-recurring The following table presents the carrying value on the measurement date of any assets and liabilities which were measured at fair value and recorded at the lower of cost or fair value, on a non-recurring basis, using significant unobservable inputs (Level 3), and the corresponding non-recurring losses or (gains) recognized during the three months ended March 31 : 2017 2016 (In thousands) Carrying Non-Recurring Carrying Non-Recurring Vacant owned facilities $ 2,485 $ — $ 2,527 $ — Net assets of acquired businesses 5,075 — 15,485 — Total assets $ 7,560 $ — $ 18,012 $ — Vacant Owned Facilities During the first three months of 2017 , the Company reviewed the recoverability of the carrying value of one vacant owned facility. At March 31, 2017 , the Company had one vacant owned facility with an estimated fair value of over $3.0 million and a carrying value of $2.5 million , classified in fixed assets in the Condensed Consolidated Balance Sheets. During the first three months of 2016 , the Company reviewed the recoverability of the carrying value of one vacant owned facility. At March 31, 2016 , the Company had one vacant owned facility with an estimated fair value of over $ 3.0 million and a carrying value of $2.5 million , classified in fixed assets in the Condensed Consolidated Balance Sheets. The determination of fair value was based on the best information available, including internal cash flow estimates, market prices for similar assets, broker quotes and independent appraisals, as appropriate. Net Assets of Acquired Businesses The Company valued the assets and liabilities associated with the acquisitions of businesses on the respective acquisition dates. Depending upon the type of asset or liability acquired, the Company used different valuation techniques in determining the fair value. Those techniques included comparable market prices, long-term sales, profitability and cash flow forecasts, assumptions regarding future industry-specific economic and market conditions, a market participant’s weighted average cost of capital, as well as other techniques as circumstances required. For further information on acquired assets and liabilities, see Note 2 of the Notes to Condensed Consolidated Financial Statements.

Segment Reporting

Segment Reporting	3 Months Ended
	Mar. 31, 2017
Segment Reporting [Abstract]
Segment Reporting	SEGMENT REPORTING The Company previously had two reportable segments, the recreational vehicle products segment (the “RV Segment”) and the manufactured housing products segment (the “MH Segment”). The Company has recently increased its focus on the significant opportunities in the aftermarket for its products, primarily sales to retail dealers, wholesale distributors and service centers. Additionally, over the past several years, sales of components for manufactured homes have become a smaller part of the Company’s business, largely due to the growth the Company has experienced with respect to its components sold to customers for traditional recreational vehicles as well as the expanded use of its components in other non-RV applications, which we refer to as adjacent industries. Unit growth for MH Segment products has also been lower over the last decade, primarily due to the real estate, credit and economic environment, including the availability of site built homes at stable prices and high interest rate spreads between conventional mortgages for site-built homes and loans for manufactured homes. In response to these changes in the Company’s business, subsequent to March 31, 2016, the Company modified its internal reporting structure, reflecting a change in how its chief operating decision maker (“CODM”) assesses the performance of the Company’s operating results and makes decisions about resource allocations. The Company’s new reportable segments are the OEM Segment and the Aftermarket Segment. Intersegment sales are insignificant. The OEM Segment, which accounted for 93 percent of consolidated net sales for each of the three month periods ended March 31, 2017 and 2016 , manufactures or distributes a broad array of components for the leading OEMs of RVs and adjacent industries, including buses; trailers used to haul boats, livestock, equipment and other cargo; trucks; pontoon boats; trains; manufactured homes; and modular housing. Approximately 71 percent of the Company’s OEM Segment net sales for the three months ended March 31, 2017 were of components for travel trailer and fifth-wheel RVs. The Aftermarket Segment, which accounted for 7 percent of consolidated net sales for each of the three month periods ended March 31, 2017 and 2016 , supplies components to the related aftermarket channels of the RV and adjacent industries, primarily to retail dealers, wholesale distributors and service centers. The Aftermarket Segment also includes the sale of replacement glass and awnings to fulfill insurance claims. Decisions concerning the allocation of the Company’s resources are made by the Company’s CODM, with oversight by the Board of Directors. The CODM evaluates the performance of each segment based upon segment operating profit or loss, generally defined as income or loss before interest and income taxes. Decisions concerning the allocation of resources are also based on each segment’s utilization of assets. Management of debt is a corporate function. The accounting policies of the OEM and Aftermarket Segments are the same as those described in Note 1 of the Notes to Consolidated Financial Statements of the Company’s Annual Report on Form 10-K for the year ended December 31, 2016 . The change in reported segments had no effect on the Company’s net income, total assets or liabilities, or stockholders’ equity. Information relating to segments follows for the: Three Months Ended (In thousands) 2017 2016 Net sales: OEM Segment: RV OEMs: Travel trailers and fifth-wheels $ 330,274 $ 283,369 Motorhomes 37,044 28,523 Adjacent industries OEMs 94,711 80,761 Total OEM Segment net sales 462,029 392,653 Aftermarket Segment: Total Aftermarket Segment net sales 36,307 30,145 Total net sales $ 498,336 $ 422,798 Operating profit: OEM Segment $ 54,397 $ 50,651 Aftermarket Segment 4,732 5,077 Total operating profit $ 59,129 $ 55,728

Accounting Pronouncements

Accounting Pronouncements	3 Months Ended
	Mar. 31, 2017
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
New Accounting Pronouncements	NEW ACCOUNTING PRONOUNCEMENTS In March 2017, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2017-07, Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost, which amends ASC 715, Compensation - Retirement Benefits. This ASU requires the service cost component of net periodic benefit cost be presented in the same income statement line item as other employee compensation costs arising from services rendered during the period, and other components of the net periodic benefit cost be presented separately from the line item that includes the service cost and outside of any subtotal of operating income. This ASU is effective for interim and annual reporting periods beginning after December 15, 2017. The Company is evaluating the effect of adopting this new accounting guidance. In January 2017, the FASB issued ASU 2017-04, Simplifying the Test for Goodwill Impairment, which amends ASC 350, Intangibles - Goodwill and Other. This ASU simplifies how an entity is required to test goodwill for impairment by eliminating step 2 from the goodwill impairment test. Step 2 measures goodwill impairment loss by comparing the implied fair value of a reporting unit’s goodwill with the carrying amount of that goodwill. This ASU is effective for interim and annual reporting periods, beginning after December 15, 2019 with early adoption permitted. The Company does not expect the adoption of this ASU to have a material impact on the Company’s Condensed Consolidated Financial Statements. In January 2017, the FASB issued ASU 2017-01, Clarifying the Definition of a Business, which amends ASC 805, Business Combinations . This ASU clarifies the definition of a business with the objective of adding guidance to assist entities with evaluating whether transactions should be accounted for as acquisition (or disposals) of assets or businesses. This ASU is effective for interim and annual reporting periods beginning after December 15, 2017. The adoption of this ASU 2017-01 is not expected to have a material impact on the Company’s Condensed Consolidated Financial Statements. In August 2016, the FASB issued ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments , which amends ASC 230, Statement of Cash Flows . This ASU provides guidance on the statement of cash flows presentation of certain transactions where diversity in practice exists. This ASU is effective for annual and interim periods beginning after December 15, 2017, and should be applied retrospectively with early adoption permitted at the beginning of an interim or annual reporting period. The Company is evaluating the effect of adopting this new accounting guidance, but does not expect adoption will have a material impact on the Company’s Condensed Consolidated Financial Statements. In March 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting , which amended ASC 718, Compensation - Stock Compensation . This ASU simplifies several aspects of the accounting for share-based payment transactions, including income tax consequences, the classification of awards as either equity or liabilities, and the classification on the statement of cash flows. Under the new standard, all excess tax benefits and tax deficiencies are recorded as a component of the provision for income taxes in the reporting period in which they occur. Additionally, ASU 2016-09 requires that the Company present excess tax benefits on the consolidated statement of cash flows as an operating activity. The adoption of the ASU resulted in the recognition of excess tax benefits in the provision for income taxes within the Condensed Consolidated Financial Statements of $5.2 million for the three months ended March 31, 2017 . Additionally, the Condensed Consolidated Statement of Cash Flows now present excess tax benefits as an operating activity, adjusted prospectively. Finally, the Company elected to continue to estimate forfeitures based on historical data and recognizes forfeiture compensation expense over the vesting period of the award. The Company adopted ASU 2016-09 in the first quarter of 2017 and elected to apply this adoption prospectively. Prior periods have not been adjusted. In February 2016, the FASB issued ASU 2016-02, Leases . This ASU requires, in most instances, a lessee to recognize on its balance sheet a liability to make lease payments (the lease liability) and also a right-of-use asset representing its right to use the underlying asset for the lease term. The amendments are effective for fiscal years beginning after December 15, 2018, including interim periods within those periods, using a modified retrospective approach with early adoption permitted. The Company is evaluating the effect of adopting this new accounting guidance. In July 2015, the FASB issued ASU 2015-11, Simplifying the Measurement of Inventory. This ASU applies to inventory measured using the first-in, first-out (“FIFO”) or average cost methods. Under the updated guidance, an entity should measure inventory that is within scope at the lower of cost and net realizable value, which is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal and transportation. The Company adopted ASU 2015-11 in the first quarter of 2017. The adoption of ASU 2015-11 did not have a material impact on the Company’s Condensed Consolidated Financial Statements. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers . This ASU outlines a single, comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance issued by the FASB, including industry specific guidance. ASU 2014-09 provides accounting guidance for all revenue arising from contracts with customers and affects all entities that enter into contracts with customers to provide goods and services. The guidance also provides a model for the measurement and recognition of gains and losses on the sale of certain non-financial assets, such as property and equipment, including real estate. ASU 2014-09 is effective for annual reporting periods, including interim reporting periods within those periods, beginning after December 15, 2017. The new standard must be adopted using either a full retrospective approach for all periods presented in the period of adoption or a modified retrospective approach. ASU 2014-09 also requires entities to disclose both quantitative and qualitative information to enable users of the financial statements to understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The Company does not anticipate the adoption of this standard will have a material impact on its reported current net sales; however, given its acquisition strategy, there may be additional revenue streams acquired prior to the adoption date. The Company’s technical analysis is on-going with respect to variable consideration, whether certain contracts’ revenues will be recognized over time or at a point in time, and whether costs to obtain a contract will be capitalized. Further, the Company is continuing to assess what incremental disaggregated revenue disclosures will be required in its Condensed Consolidated Financial Statements. The Company continues to evaluate transition methods, and expects to finalize its determination once all other significant matters are concluded.

Basis of Presentation and Signi

Basis of Presentation and Significant Accounting Policies (Policies)	3 Months Ended
	Mar. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Use of Estimates	The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires the Company to make estimates and judgments that affect the reported amounts of assets, liabilities, net sales and expenses, and related disclosure of contingent assets and liabilities. On an ongoing basis, the Company evaluates its estimates, including, but not limited to, those related to product returns, sales and purchase rebates, accounts receivable, inventories, goodwill and other intangible assets, net assets of acquired businesses, income taxes, warranty and product recall obligations, self-insurance obligations, lease terminations, asset retirement obligations, long-lived assets, post-retirement benefits, stock-based compensation, segment allocations, contingent consideration, environmental liabilities, contingencies and litigation. The Company bases its estimates on historical experience, other available information and various other assumptions believed to be reasonable under the circumstances, the results of which form the basis for making judgments about the carrying values of assets and liabilities not readily apparent from other resources. Actual results and events could differ significantly from management estimates.
New Accounting Pronouncements	In August 2016, the FASB issued ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments , which amends ASC 230, Statement of Cash Flows . This ASU provides guidance on the statement of cash flows presentation of certain transactions where diversity in practice exists. This ASU is effective for annual and interim periods beginning after December 15, 2017, and should be applied retrospectively with early adoption permitted at the beginning of an interim or annual reporting period. The Company is evaluating the effect of adopting this new accounting guidance, but does not expect adoption will have a material impact on the Company’s Condensed Consolidated Financial Statements. In March 2016, the FASB issued ASU 2016-09, Improvements to Employee Share-Based Payment Accounting , which amended ASC 718, Compensation - Stock Compensation . This ASU simplifies several aspects of the accounting for share-based payment transactions, including income tax consequences, the classification of awards as either equity or liabilities, and the classification on the statement of cash flows. Under the new standard, all excess tax benefits and tax deficiencies are recorded as a component of the provision for income taxes in the reporting period in which they occur. Additionally, ASU 2016-09 requires that the Company present excess tax benefits on the consolidated statement of cash flows as an operating activity. The adoption of the ASU resulted in the recognition of excess tax benefits in the provision for income taxes within the Condensed Consolidated Financial Statements of $5.2 million for the three months ended March 31, 2017 . Additionally, the Condensed Consolidated Statement of Cash Flows now present excess tax benefits as an operating activity, adjusted prospectively. Finally, the Company elected to continue to estimate forfeitures based on historical data and recognizes forfeiture compensation expense over the vesting period of the award. The Company adopted ASU 2016-09 in the first quarter of 2017 and elected to apply this adoption prospectively. Prior periods have not been adjusted. In February 2016, the FASB issued ASU 2016-02, Leases . This ASU requires, in most instances, a lessee to recognize on its balance sheet a liability to make lease payments (the lease liability) and also a right-of-use asset representing its right to use the underlying asset for the lease term. The amendments are effective for fiscal years beginning after December 15, 2018, including interim periods within those periods, using a modified retrospective approach with early adoption permitted. The Company is evaluating the effect of adopting this new accounting guidance. In July 2015, the FASB issued ASU 2015-11, Simplifying the Measurement of Inventory. This ASU applies to inventory measured using the first-in, first-out (“FIFO”) or average cost methods. Under the updated guidance, an entity should measure inventory that is within scope at the lower of cost and net realizable value, which is the estimated selling prices in the ordinary course of business, less reasonably predictable costs of completion, disposal and transportation. The Company adopted ASU 2015-11 in the first quarter of 2017. The adoption of ASU 2015-11 did not have a material impact on the Company’s Condensed Consolidated Financial Statements. In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers . This ASU outlines a single, comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance issued by the FASB, including industry specific guidance. ASU 2014-09 provides accounting guidance for all revenue arising from contracts with customers and affects all entities that enter into contracts with customers to provide goods and services. The guidance also provides a model for the measurement and recognition of gains and losses on the sale of certain non-financial assets, such as property and equipment, including real estate. ASU 2014-09 is effective for annual reporting periods, including interim reporting periods within those periods, beginning after December 15, 2017. The new standard must be adopted using either a full retrospective approach for all periods presented in the period of adoption or a modified retrospective approach. ASU 2014-09 also requires entities to disclose both quantitative and qualitative information to enable users of the financial statements to understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers. The Company does not anticipate the adoption of this standard will have a material impact on its reported current net sales; however, given its acquisition strategy, there may be additional revenue streams acquired prior to the adoption date. The Company’s technical analysis is on-going with respect to variable consideration, whether certain contracts’ revenues will be recognized over time or at a point in time, and whether costs to obtain a contract will be capitalized. Further, the Company is continuing to assess what incremental disaggregated revenue disclosures will be required in its Condensed Consolidated Financial Statements. The Company continues to evaluate transition methods, and expects to finalize its determination once all other significant matters are concluded.

Acquisitions, Goodwill And Ot22

Acquisitions, Goodwill And Other Intangible Assets (Tables)	3 Months Ended
	Mar. 31, 2017
Business Acquisition [Line Items]
Schedule of Goodwill	Goodwill by reportable segment was as follows: (In thousands) OEM Segment Aftermarket Segment Total Net balance – December 31, 2016 $ 74,663 $ 14,535 $ 89,198 Acquisitions – 2017 5,614 — 5,614 Other 3,286 7 3,293 Net balance – March 31, 2017 $ 83,563 $ 14,542 $ 98,105
Schedule of Other Intangible Assets	Other intangible assets consisted of the following at March 31, 2017 : (In thousands) Gross Accumulated Net Estimated Useful Customer relationships $ 113,513 $ 34,704 $ 78,809 6 to 16 Patents 57,347 34,850 22,497 3 to 19 Tradenames 9,741 4,494 5,247 3 to 15 Non-compete agreements 6,076 3,230 2,846 3 to 6 Other 309 84 225 2 to 12 Purchased research and development 4,687 — 4,687 Indefinite Other intangible assets $ 191,673 $ 77,362 $ 114,311 Other intangible assets consisted of the following at December 31, 2016 : (In thousands) Gross Accumulated Net Estimated Useful Customer relationships $ 110,784 $ 32,414 $ 78,370 6 to 16 Patents 56,468 34,066 22,402 3 to 19 Tradenames 10,041 5,667 4,374 3 to 15 Non-compete agreements 5,852 2,975 2,877 3 to 6 Other 309 76 233 2 to 12 Purchased research and development 4,687 — 4,687 Indefinite Other intangible assets $ 188,141 $ 75,198 $ 112,943
SessaKlein S.p.A.
Business Acquisition [Line Items]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	The acquisition of this business was preliminarily recorded on the acquisition date as follows (in thousands) : Cash consideration net of cash acquired $ 5,767 Contingent consideration 4,922 Total fair value of consideration given $ 10,689 Customer relationships $ 3,189 Other identifiable intangible assets 1,329 Net tangible assets 557 Total fair value of net assets acquired $ 5,075 Goodwill (not tax deductible) $ 5,614
Flair Interiors
Business Acquisition [Line Items]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	The acquisition of this business was recorded on the acquisition date as follows (in thousands) : Cash consideration $ 8,100 Customer relationships $ 3,700 Net other assets 2,378 Total fair value of net assets acquired $ 6,078 Goodwill (tax deductible) $ 2,022
Highwater Marine Furniture
Business Acquisition [Line Items]
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]	The acquisition of this business was recorded on the acquisition date as follows (in thousands) : Cash consideration $ 10,000 Customer relationships $ 8,100 Net tangible assets 1,307 Total fair value of net assets acquired $ 9,407 Goodwill (tax deductible) $ 593

Inventories (Tables)

Inventories (Tables)	3 Months Ended
	Mar. 31, 2017
Inventory Disclosure [Abstract]
Schedule Of Inventories	Inventories, valued at the lower of cost (first-in, first-out (FIFO) method) or market, consisted of the following at: March 31, December 31, (In thousands) 2017 2016 2016 Raw materials $ 156,363 $ 136,310 $ 155,044 Work in process 9,004 7,859 7,509 Finished goods 23,653 21,015 26,190 Inventories, net $ 189,020 $ 165,184 $ 188,743

Fixed Assets (Tables)

Fixed Assets (Tables)	3 Months Ended
	Mar. 31, 2017
Property, Plant and Equipment [Abstract]
Schedule Of Fixed Assets	Fixed assets consisted of the following at: March 31, December 31, (In thousands) 2017 2016 2016 Fixed assets, at cost $ 350,081 $ 298,355 $ 337,362 Less accumulated depreciation and amortization 171,159 147,977 164,614 Fixed assets, net $ 178,922 $ 150,378 $ 172,748

Accrued Expenses And Other Cu25

Accrued Expenses And Other Current Liabilities (Tables)	3 Months Ended
	Mar. 31, 2017
Payables and Accruals [Abstract]
Schedule Of Accrued Expenses And Other Current Liabilities	Accrued expenses and other current liabilities consisted of the following at: March 31, December 31, (In thousands) 2017 2016 2016 Employee compensation and benefits $ 31,202 $ 30,900 $ 47,459 Current portion of accrued warranty 20,397 18,185 20,393 Taxes payable 14,624 17,508 41 Customer rebates 10,440 9,735 9,329 Other 24,357 23,326 21,513 Accrued expenses and other current liabilities $ 101,020 $ 99,654 $ 98,735
Schedule Of Reconciliation Of The Activity Related To Accrued Warranty	The following table provides a reconciliation of the activity related to the Company’s accrued warranty, including both the current and long-term portions, for the three months ended March 31 : (In thousands) 2017 2016 Balance at beginning of period $ 32,393 $ 26,204 Provision for warranty expense 5,306 5,477 Warranty liability from acquired businesses — 125 Warranty costs paid (4,590 ) (3,692 ) Balance at end of period 33,109 28,114 Less long-term portion 12,712 9,929 Current portion of accrued warranty $ 20,397 $ 18,185

Commitments And Contingencies (

Commitments And Contingencies (Tables)	3 Months Ended
	Mar. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Reconciliation Of Contingent Consideration Liability	The following table provides a reconciliation of the Company’s contingent consideration liability for the three months ended March 31 : (In thousands) 2017 2016 Balance at beginning of period $ 9,241 $ 10,840 Acquisitions 4,922 — Payments (1,884 ) (415 ) Accretion (a) 292 239 Fair value adjustments (a) 815 (366 ) Balance at end of the period (b) 13,386 10,298 Less current portion in accrued expenses and other current liabilities (5,797 ) (5,073 ) Total long-term portion in other long-term liabilities $ 7,589 $ 5,225 (a) Recorded in selling, general and administrative expense in the Condensed Consolidated Statements of Income. (b) Amounts represent the fair value of estimated remaining payments. The total estimated remaining payments as of March 31, 2017 are $17.8 million undiscounted. The liability for contingent consideration expires at various dates through September 2029. Certain of the contingent consideration arrangements are subject to a maximum payment amount, while the remaining arrangements have no maximum contingent consideration.
Schedule of Minimum Purchase Obligations	In connection with this agreement, the Company entered into the following minimum purchase obligations (“MPOs”), which the Company anticipates will be revised from time to time: July 2016 - June 2017 $ 90 million July 2017 - June 2018 $127 million July 2018 - June 2019 $172 million

Stockholders' Equity (Tables)

Stockholders' Equity (Tables)	3 Months Ended
	Mar. 31, 2017
Stockholders' Equity Note [Abstract]
Summary Of Common Stock Information	The following table summarizes information about shares of the Company’s common stock at: March 31, December 31, (In thousands) 2017 2016 2016 Common stock authorized 75,000 75,000 75,000 Common stock issued 27,590 27,189 27,434 Treasury stock 2,684 2,684 2,684
Schedule Of Computation Of Basic And Diluted Earnings Per Share	The following reconciliation details the denominator used in the computation of basic and diluted earnings per share: Three Months Ended (In thousands) 2017 2016 Weighted average shares outstanding for basic earnings per share 24,906 24,567 Common stock equivalents pertaining to stock-based awards 349 227 Weighted average shares outstanding for diluted earnings per share 25,255 24,794
Schedule of Dividends Declared	The table below summarizes the regular quarterly dividends declared and paid during the periods ended March 31, 2017 and December 31, 2016 : (In thousands, except per share data) Per Share Record Date Payment Date Total Paid First Quarter 2016 $ 0.30 04/01/16 04/15/16 $ 7,344 Second Quarter 2016 0.30 06/06/16 06/17/16 7,363 Third Quarter 2016 0.30 08/19/16 09/02/16 7,371 Fourth Quarter 2016 0.50 11/28/16 12/09/16 12,359 Total 2016 $ 1.40 $ 34,437 First Quarter 2017 $ 0.50 03/06/17 03/17/17 $ 12,442

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2017
Fair Value Disclosures [Abstract]
Assets And Liabilities Measured At Fair Value On A Recurring Basis	The following table presents the Company’s assets and liabilities measured at fair value on a recurring basis at: March 31, 2017 December 31, 2016 (In thousands) Total Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Assets Unrealized gain on derivative $ 1,728 $ — $ 1,728 $ — $ 2,296 $ — $ 2,296 $ — Liabilities Contingent consideration $ 13,386 $ — $ — $ 13,386 $ 9,241 $ — $ — $ 9,241
Schedule Of Non-Recurring Losses Recognized Using Fair Value Measurements And The Carrying Value Of Any Assets And Liabilities Measured Using Fair Value Estimates	The following table presents the carrying value on the measurement date of any assets and liabilities which were measured at fair value and recorded at the lower of cost or fair value, on a non-recurring basis, using significant unobservable inputs (Level 3), and the corresponding non-recurring losses or (gains) recognized during the three months ended March 31 : 2017 2016 (In thousands) Carrying Non-Recurring Carrying Non-Recurring Vacant owned facilities $ 2,485 $ — $ 2,527 $ — Net assets of acquired businesses 5,075 — 15,485 — Total assets $ 7,560 $ — $ 18,012 $ —

Segment Reporting (Tables)

Segment Reporting (Tables)	3 Months Ended
	Mar. 31, 2017
Segment Reporting [Abstract]
Schedule Of Information Relating To Segments	Information relating to segments follows for the: Three Months Ended (In thousands) 2017 2016 Net sales: OEM Segment: RV OEMs: Travel trailers and fifth-wheels $ 330,274 $ 283,369 Motorhomes 37,044 28,523 Adjacent industries OEMs 94,711 80,761 Total OEM Segment net sales 462,029 392,653 Aftermarket Segment: Total Aftermarket Segment net sales 36,307 30,145 Total net sales $ 498,336 $ 422,798 Operating profit: OEM Segment $ 54,397 $ 50,651 Aftermarket Segment 4,732 5,077 Total operating profit $ 59,129 $ 55,728

Basis of Presentation (Details)

Basis of Presentation (Details)	Mar. 31, 2017
Manufacturing Facility
Property, Plant and Equipment
Manufacturing Facilities	49

Acquisitions, Goodwill And Ot31

Acquisitions, Goodwill And Other Intangible Assets (Narrative) (Details) - USD ($) $ in Thousands	Feb. 01, 2017	Feb. 28, 2017	Feb. 29, 2016	Jan. 31, 2016	Mar. 31, 2017
Business Acquisition [Line Items]
Other change in goodwill					$ 3,293
SessaKlein S.p.A.
Business Acquisition [Line Items]
Percentage of interests acquired		100.00%
Total purchase price	$ 10,689	$ 8,500
SessaKlein S.p.A. | Customer Relationships
Business Acquisition [Line Items]
Acquired intangible assets useful life	15 years
Project 2,000
Business Acquisition [Line Items]
Other change in goodwill					$ 3,200
Flair Interiors
Business Acquisition [Line Items]
Cash consideration			$ 8,100
Flair Interiors | Customer Relationships
Business Acquisition [Line Items]
Acquired intangible assets useful life			15 years
Highwater Marine Furniture
Business Acquisition [Line Items]
Cash consideration				$ 10,000
Highwater Marine Furniture | Customer Relationships
Business Acquisition [Line Items]
Acquired intangible assets useful life				15 years

Acquisitions, Goodwill And Ot32

Acquisitions, Goodwill And Other Intangible Assets (Schedule Of Business Acquisitions) (Details) - USD ($) $ in Thousands	Feb. 01, 2017	Feb. 28, 2017	Feb. 29, 2016	Jan. 31, 2016	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Business Acquisition [Line Items]
Cash consideration net of cash acquired					$ 10,689	$ 18,100
Goodwill					$ 98,105	$ 86,112	$ 89,198
SessaKlein S.p.A.
Business Acquisition [Line Items]
Cash consideration net of cash acquired	$ 5,767
Contingent consideration	4,922
Total fair value of consideration given	10,689	$ 8,500
Net other assets	557
Total fair value of net assets acquired	5,075
Goodwill	5,614
Highwater Marine Furniture
Business Acquisition [Line Items]
Cash consideration				$ 10,000
Net tangible assets				1,307
Total fair value of net assets acquired				9,407
Goodwill				593
Flair Interiors
Business Acquisition [Line Items]
Cash consideration			$ 8,100
Net other assets			2,378
Total fair value of net assets acquired			6,078
Goodwill			2,022
Customer Relationships | SessaKlein S.p.A.
Business Acquisition [Line Items]
Identifiable intangible assets	3,189
Customer Relationships | Highwater Marine Furniture
Business Acquisition [Line Items]
Identifiable intangible assets				$ 8,100
Customer Relationships | Flair Interiors
Business Acquisition [Line Items]
Identifiable intangible assets			$ 3,700
Other Intangible Assets | SessaKlein S.p.A.
Business Acquisition [Line Items]
Identifiable intangible assets	$ 1,329

Acquisitions, Goodwill And Ot33

Acquisitions, Goodwill And Other Intangible Assets (Schedule Of Goodwill By Reportable Segment) (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2017USD ($)
Segment Reporting Information
Net balance – December 31, 2016	$ 89,198
Acquisitions – 2017	5,614
Other	3,293
Net balance – March 31, 2017	98,105
OEM Segment
Segment Reporting Information
Net balance – December 31, 2016	74,663
Acquisitions – 2017	5,614
Other	3,286
Net balance – March 31, 2017	83,563
Aftermarket Segment
Segment Reporting Information
Net balance – December 31, 2016	14,535
Acquisitions – 2017	0
Other	7
Net balance – March 31, 2017	$ 14,542

Acquisitions, Goodwill And Ot34

Acquisitions, Goodwill And Other Intangible Assets (Schedule Of Other Intangible Assets) (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016
Acquired Intangible Assets
Finite-Lived Intangible Assets, Accumulated Amortization	$ 77,362	$ 75,198
Intangible Assets, Gross (Excluding Goodwill)	191,673	188,141
Intangible Assets, Net (Excluding Goodwill)	114,311	112,943	$ 109,347
Customer Relationships
Acquired Intangible Assets
Finite-Lived Intangible Assets, Gross	113,513	110,784
Finite-Lived Intangible Assets, Accumulated Amortization	34,704	32,414
Finite-Lived Intangible Assets, Net	$ 78,809	$ 78,370
Customer Relationships | Minimum
Acquired Intangible Assets
Estimated useful life in years	6 years	6 years
Customer Relationships | Maximum
Acquired Intangible Assets
Estimated useful life in years	16 years	16 years
Patents
Acquired Intangible Assets
Finite-Lived Intangible Assets, Gross	$ 57,347	$ 56,468
Finite-Lived Intangible Assets, Accumulated Amortization	34,850	34,066
Finite-Lived Intangible Assets, Net	$ 22,497	$ 22,402
Patents | Minimum
Acquired Intangible Assets
Estimated useful life in years	3 years	3 years
Patents | Maximum
Acquired Intangible Assets
Estimated useful life in years	19 years	19 years
Tradenames
Acquired Intangible Assets
Finite-Lived Intangible Assets, Gross	$ 9,741	$ 10,041
Finite-Lived Intangible Assets, Accumulated Amortization	4,494	5,667
Finite-Lived Intangible Assets, Net	$ 5,247	$ 4,374
Tradenames | Minimum
Acquired Intangible Assets
Estimated useful life in years	3 years	3 years
Tradenames | Maximum
Acquired Intangible Assets
Estimated useful life in years	15 years	15 years
Non-compete Agreements
Acquired Intangible Assets
Finite-Lived Intangible Assets, Gross	$ 6,076	$ 5,852
Finite-Lived Intangible Assets, Accumulated Amortization	3,230	2,975
Finite-Lived Intangible Assets, Net	$ 2,846	$ 2,877
Non-compete Agreements | Minimum
Acquired Intangible Assets
Estimated useful life in years	3 years	3 years
Non-compete Agreements | Maximum
Acquired Intangible Assets
Estimated useful life in years	6 years	6 years
Other
Acquired Intangible Assets
Finite-Lived Intangible Assets, Gross	$ 309	$ 309
Finite-Lived Intangible Assets, Accumulated Amortization	84	76
Finite-Lived Intangible Assets, Net	$ 225	$ 233
Other | Minimum
Acquired Intangible Assets
Estimated useful life in years	2 years	2 years
Other | Maximum
Acquired Intangible Assets
Estimated useful life in years	12 years	12 years
Purchased research and development
Acquired Intangible Assets
Indefinite-Lived Intangible Assets - Purchased research and development	$ 4,687	$ 4,687

Inventories (Schedule Of Invent

Inventories (Schedule Of Inventories) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016
Inventory Disclosure [Abstract]
Raw materials	$ 156,363	$ 155,044	$ 136,310
Work in process	9,004	7,509	7,859
Finished goods	23,653	26,190	21,015
Inventories, net	$ 189,020	$ 188,743	$ 165,184

Fixed Assets (Schedule Of Fixed

Fixed Assets (Schedule Of Fixed Assets) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016
Property, Plant and Equipment [Abstract]
Fixed assets, at cost	$ 350,081	$ 337,362	$ 298,355
Less accumulated depreciation and amortization	171,159	164,614	147,977
Fixed assets, net	$ 178,922	$ 172,748	$ 150,378

Notes Receivable (Details)

Notes Receivable (Details) - USD ($)	1 Months Ended	3 Months Ended
	Apr. 30, 2014	Mar. 31, 2017	Jul. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Long-term purchase commitment, time period	6 years
Proceeds from sale of extrusion assets	$ 300,000
Proceeds from Collection of Notes Receivable		$ 5,800,000
Note Receivable for Sale of Assets
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable amount	$ 7,200,000
Note receivable term	4 years
Note receivable present value	$ 6,400,000	1,400,000
Note Receivable for Contract Termination
Accounts, Notes, Loans and Financing Receivable [Line Items]
Notes receivable amount			$ 2,000,000
Note receivable present value		$ 1,800,000	$ 1,600,000

Accrued Expenses And Other Cu38

Accrued Expenses And Other Current Liabilities (Schedule Of Accrued Expenses And Other Current Liabilities) (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016
Payables and Accruals [Abstract]
Employee compensation and benefits	$ 31,202	$ 47,459	$ 30,900
Current portion of accrued warranty	20,397	20,393	18,185
Taxes payable	14,624	41	17,508
Customer rebates	10,440	9,329	9,735
Other	24,357	21,513	23,326
Accrued expenses and other current liabilities	$ 101,020	$ 98,735	$ 99,654

Accrued Expenses And Other Cu39

Accrued Expenses And Other Current Liabilities (Schedule Of Reconciliation Of The Activity Related To Accrued Warranty) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Movement in Standard and Extended Product Warranty, Increase (Decrease) [Roll Forward]
Balance at beginning of period	$ 32,393	$ 26,204
Provision for warranty expense	5,306	5,477
Warranty liability from acquired businesses	0	125
Warranty costs paid	(4,590)	(3,692)
Balance at end of period	33,109	28,114
Less long-term portion	12,712	9,929
Current portion of accrued warranty	$ 20,397	$ 18,185	$ 20,393

Long-Term Indebtedness (Details

Long-Term Indebtedness (Details)	Apr. 27, 2016USD ($)	Mar. 20, 2015USD ($)	Feb. 24, 2014USD ($)	Mar. 31, 2017USD ($)	Mar. 30, 2017USD ($)	Dec. 31, 2016USD ($)	Mar. 31, 2016USD ($)	Mar. 03, 2015USD ($)
Line of Credit Facility
Long-term indebtedness				$ 49,905,000		$ 49,949,000	$ 49,920,000
Maximum
Line of Credit Facility
Equity interest percentage	65.00%
Line of Credit
Line of Credit Facility
Debt outstanding at period end				0		$ 0	0
Remaining availability under the facilities				$ 297,500,000
Maximum leverage ratio				2.5
JPMorgan Chase Bank And Wells Fargo Bank | Line of Credit
Line of Credit Facility
Maximum borrowings under line of credit					$ 100,000,000			$ 100,000,000
Letters of credit outstanding amount				$ 2,500,000			$ 2,600,000
Remaining availability under the facilities				$ 197,500,000
Prudential Investment Management Inc | Line of Credit
Line of Credit Facility
Remaining availability under the facilities			$ 150,000,000
Period after request is issued, by company, for interest payable rate to be determined by Prudential			5 days
Long-term indebtedness		$ 50,000,000
Debt Instrument, Term		5 years
Interest rate during period				3.35%
JPMorgan Chase Bank, N.A., Wells Fargo Bank, N.A., Bank of America, N.A., and 1st Source Bank | Line of Credit
Line of Credit Facility
Maximum borrowings under line of credit	$ 200,000,000
Maximum draw capacity in approved foreign currencies	50,000,000
Additional maximum borrowing capacity upon approval	$ 125,000,000
Option One | JPMorgan Chase Bank, N.A., Wells Fargo Bank, N.A., Bank of America, N.A., and 1st Source Bank | Line of Credit | LIBOR
Line of Credit Facility
Basis spread on variable rate	1.00%
Option One | JPMorgan Chase Bank, N.A., Wells Fargo Bank, N.A., Bank of America, N.A., and 1st Source Bank | Line of Credit | LIBOR | Minimum
Line of Credit Facility
Debt instrument, additional margin interest rate	0.00%
Option One | JPMorgan Chase Bank, N.A., Wells Fargo Bank, N.A., Bank of America, N.A., and 1st Source Bank | Line of Credit | LIBOR | Maximum
Line of Credit Facility
Debt instrument, additional margin interest rate	0.625%
Option One | JPMorgan Chase Bank, N.A., Wells Fargo Bank, N.A., Bank of America, N.A., and 1st Source Bank | Line of Credit | Federal Funds Effective Rate
Line of Credit Facility
Basis spread on variable rate	0.50%
Option Two | JPMorgan Chase Bank, N.A., Wells Fargo Bank, N.A., Bank of America, N.A., and 1st Source Bank | Line of Credit | LIBOR | Maximum
Line of Credit Facility
Basis spread on variable rate	1.625%

Commitments And Contingencies41

Commitments And Contingencies (Narrative) (Details)	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Loss Contingencies
Percentage of weighted average cost of capital	13.70%	13.90%

Commitments And Contingencies42

Commitments And Contingencies (Reconciliation Of Contingent Consideration Liability) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Business Combination, Contingent Consideration, Reconciliation of Change in Liability [Roll Forward]
Balance at beginning of period	$ 9,241	$ 10,840
Acquisitions	(4,922)	0
Payments	(1,884)	(415)
Accretion	292	239
Fair value adjustments	815	(366)
Balance at end of the period	13,386	10,298
Less current portion in accrued expenses and other current liabilities	(5,797)	(5,073)
Total long-term portion in other long-term liabilities	7,589	$ 5,225
Contingent consideration, total remaining estimated payments	$ 17,800

Commitments And Contingencies43

Commitments And Contingencies (Schedule of Minimum Purchase Obligations) (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended
	Jul. 31, 2015	Apr. 30, 2014	Mar. 31, 2017	Mar. 31, 2016
Long-term Purchase Commitment
Long-term purchase commitment, time period		6 years
Net sales			$ 498,336	$ 422,798
Furrion Limited
Long-term Purchase Commitment
Long-term purchase commitment, time period	6 years
Furrion Limited | Inventories
Long-term Purchase Commitment
July 2016 - June 2017			90,000
July 2017 - June 2018			127,000
July 2018 - June 2019			$ 172,000

Stockholders' Equity (Summary O

Stockholders' Equity (Summary Of Common Stock Information) (Details) - shares shares in Thousands	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016
Stockholders' Equity Note [Abstract]
Common stock authorized	75,000	75,000	75,000
Common stock issued	27,590	27,434	27,189
Treasury stock	2,684	2,684	2,684

Stockholders' Equity (Schedule

Stockholders' Equity (Schedule Of Computation Of Basic And Diluted Earnings Per Share) (Details) - shares shares in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Stockholders' Equity Note [Abstract]
Weighted average shares outstanding for basic earnings per share (in shares)	24,906	24,567
Common stock equivalents pertaining to stock options and deferred stock units	349	227
Weighted average shares outstanding for diluted earnings per share (in shares)	25,255	24,794

Stockholders' Equity (Narrative

Stockholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended		3 Months Ended					12 Months Ended
	Feb. 28, 2017	Feb. 29, 2016	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average diluted shares outstanding excludes shares of common stock subject to stock options			143,270				242,174
Cash dividend (in usd per share)			$ 0.5	$ 0.5	$ 0.3	$ 0.3	$ 0.3	$ 1.4
Payment of dividends			$ 12,442				$ 0
Deferred stock units issued to executive officers	63,677	4,784
Deferred stock units issued to executive officers, aggregate fair value	$ 6,900	$ 300
Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Payment of dividends			$ 12,442	$ 12,359	$ 7,371	$ 7,363	$ 7,344	$ 34,437
Weighted Average
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred stock units issued to executive officers, exercise price	$ 108.47	$ 55.22

Fair Value Measurements (Narrat

Fair Value Measurements (Narrative) (Details) $ in Thousands, lb in Millions	3 Months Ended
	Mar. 31, 2017USD ($)propertylb$ / lb	Mar. 31, 2016USD ($)property	Dec. 31, 2016USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Number of years long-term sales growth forecasted over	6 years
Average long-term sales growth forecast, over next 4 years, percent per year	14.00%
Combined carrying value	$ 178,922	$ 150,378	$ 172,748
Derivative, Nonmonetary Notional Amount, Mass | lb	33.6
Underlying, Derivative Mass | $ / lb	0.25
Derivative Asset	$ 1,700
Derivative, Gain (Loss) on Derivative, Net	$ 600
Vacant owned facilities
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Number of vacant owned facilities | property	1	1
Number of properties classified as fixed assets | property	1	1
Estimated combined fair value	$ 3,000	$ 3,000
Combined carrying value	$ 2,500	$ 2,500

Fair Value Measurements (Assets

Fair Value Measurements (Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) - Recurring - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Assets
Unrealized gain on derivative instruments	$ 1,728	$ 2,296
Liabilities
Contingent consideration	13,386	9,241
Level 1
Assets
Unrealized gain on derivative instruments	0	0
Liabilities
Contingent consideration	0	0
Level 2
Assets
Unrealized gain on derivative instruments	1,728	2,296
Liabilities
Contingent consideration	0	0
Level 3
Assets
Unrealized gain on derivative instruments	0	0
Liabilities
Contingent consideration	$ 13,386	$ 9,241

Fair Value Measurements (Schedu

Fair Value Measurements (Schedule Of Non-Recurring Losses Recognized Using Fair Value Measurements And The Carrying Value Of Any Assets And Liabilities Measured Using Fair Value Estimates) (Details) - Fair Value, Measurements, Nonrecurring - USD ($) $ in Thousands	Mar. 31, 2017	Mar. 31, 2016
Assets
Assets, carrying value	$ 7,560	$ 18,012
Assets, non-recurring losses (gains)	0	0
Vacant owned facilities
Assets
Assets, carrying value	2,485	2,527
Assets, non-recurring losses (gains)	0	0
Net assets of acquired businesses
Assets
Assets, carrying value	5,075	15,485
Assets, non-recurring losses (gains)	$ 0	$ 0

Segment Reporting (Narrative) (

Segment Reporting (Narrative) (Details)	3 Months Ended
	Mar. 31, 2017segment
Segment Reporting Information
Number of reportable segments	2
Net sales | OEM Segment
Segment Reporting Information
Concentration risk, percentage	93.00%
Net sales | Aftermarket Segment
Segment Reporting Information
Concentration risk, percentage	7.00%
Product Concentration Risk [Member] | Net sales | Travel Trailer And Fifth-Wheels
Segment Reporting Information
Concentration risk, percentage	71.00%

Segment Reporting (Schedule Of

Segment Reporting (Schedule Of Information Relating To Segments) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Segment Reporting Information
Net sales	$ 498,336	$ 422,798
Operating profit	59,129	55,728
OEM Segment
Segment Reporting Information
Net sales	462,029	392,653
Operating profit	54,397	50,651
Travel Trailer And Fifth-Wheels
Segment Reporting Information
Net sales	330,274	283,369
Motorhomes
Segment Reporting Information
Net sales	37,044	28,523
Adjacent Industries
Segment Reporting Information
Net sales	94,711	80,761
Aftermarket Segment
Segment Reporting Information
Net sales	36,307	30,145
Operating profit	$ 4,732	$ 5,077

Accounting Pronouncements (Deta

Accounting Pronouncements (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Excess Tax Benefit from Share-based Compensation, Operating Activities	$ (5,239)	$ 0
Accounting Standards Update 2016-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Excess Tax Benefit from Share-based Compensation, Operating Activities	$ 5,200

Uncategorized Items - lcii-2017

Label	Element	Value
Retained Earnings [Member]
Net Income (Loss) Attributable to Parent	us-gaap_NetIncomeLoss	$ 43,145,000