Wabash National (WNC) 10-Q 31 Jul 19 2019 Q2 Quarterly report Financial data

Cover Page

Cover Page - shares	6 Months Ended
	Jun. 30, 2019	Jul. 25, 2019
Cover page.
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2019
Document Transition Report	false
Entity File Number	001-10883
Entity Registrant Name	WABASH NATIONAL CORPORATION
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	52-1375208
Entity Address, Address Line One	1000 Sagamore Parkway South
Entity Address, City or Town	Lafayette
Entity Address, State or Province	IN
Entity Address, Postal Zip Code	47905
City Area Code	765
Local Phone Number	771-5300
Title of 12(b) Security	Common Stock, $0.01 par value
Trading Symbol	WNC
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		54,456,563
Amendment Flag	false
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Entity Central Index Key	0000879526
Current Fiscal Year End Date	--12-31

CONDENSED CONSOLIDATED BALANCE

CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 140,155	$ 132,690
Accounts receivable, net	170,177	181,064
Inventories	264,567	184,404
Prepaid expenses and other	40,550	51,261
Total current assets	615,449	549,419
Property, plant, and equipment, net	208,718	206,991
Goodwill	311,085	311,084
Intangible assets, net	200,089	210,328
Other assets	39,488	26,571
Total assets	1,374,829	1,304,393
Current Liabilities:
Current portion of long-term debt	0	1,880
Current portion of finance lease obligations	317
Current portion of finance lease obligations		299
Accounts payable	200,641	153,113
Other accrued liabilities	120,356	116,384
Total current liabilities	321,314	271,676
Long-term debt	489,865	503,018
Finance lease obligations	544
Finance lease obligations		714
Deferred income taxes	32,691	34,905
Other non-current liabilities	28,850	20,231
Total liabilities	873,264	830,544
Commitments and contingencies
Stockholders’ equity:
Common stock 200,000,000 shares authorized, $0.01 par value, 54,675,691 and 55,135,788 shares outstanding, respectively	749	744
Additional paid-in capital	634,465	629,039
Retained earnings	186,934	150,244
Accumulated other comprehensive losses	(3,896)	(3,343)
Treasury stock at cost, 20,331,511 and 19,372,735 common shares, respectively	(316,687)	(302,835)
Total stockholders' equity	501,565	473,849
Total liabilities and stockholders’ equity	$ 1,374,829	$ 1,304,393

CONDENSED CONSOLIDATED BALANC_2

CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Jun. 30, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, par value (in usd per share)	$ 0.01	$ 0.01
Common stock, shares outstanding (in shares)	54,675,691	55,135,788
Treasury stock, shares (in shares)	20,331,511	19,372,735

CONDENSED CONSOLIDATED STATEMEN

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Net sales	$ 626,053	$ 612,690	$ 1,159,227	$ 1,104,009
Cost of sales	538,403	527,375	1,002,887	954,576
Gross profit	87,650	85,315	156,340	149,433
General and administrative expenses	26,509	25,778	56,649	50,887
Selling expenses	8,494	8,556	16,717	16,901
Amortization of intangible assets	5,109	4,940	10,238	9,881
Acquisition expenses	0	0	0	68
Income from operations	47,538	46,041	72,736	71,696
Other income (expense):
Interest expense	(7,020)	(7,151)	(14,110)	(14,605)
Other, net	1,081	4,037	912	11,953
Other expense, net	(5,939)	(3,114)	(13,198)	(2,652)
Income before income tax	41,599	42,927	59,538	69,044
Income tax expense	10,639	11,025	13,798	15,870
Net income	$ 30,960	$ 31,902	$ 45,740	$ 53,174
Net income per share:
Basic (in usd per share)	$ 0.56	$ 0.55	$ 0.83	$ 0.92
Diluted (in usd per share)	$ 0.56	$ 0.54	$ 0.82	$ 0.89
Weighted average common shares outstanding (in thousands):
Basic (in shares)	55,197	57,879	55,233	57,836
Diluted (in shares)	55,668	59,274	55,719	60,023
Dividends declared per share (in usd per share)	$ 0.080	$ 0.075	$ 0.160	$ 0.150

CONDENSED CONSOLIDATED STATEM_2

CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement of Comprehensive Income [Abstract]
Net income	$ 30,960	$ 31,902	$ 45,740	$ 53,174
Other comprehensive (loss) income, net of tax:
Foreign currency translation adjustment and other	(115)	(644)	183	(236)
Unrealized loss on derivative instruments	78	0	(736)	0
Total other comprehensive (loss) income	(37)	(644)	(553)	(236)
Comprehensive income	$ 30,923	$ 31,258	$ 45,187	$ 52,938

CONDENSED CONSOLIDATED STATEM_3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities
Net income	$ 45,740	$ 53,174
Adjustments to reconcile net income to net cash provided by operating activities
Depreciation	10,957	10,330
Amortization of intangibles	10,238	9,881
Net loss (gain) on sale of property, plant and equipment	481	(9,743)
Loss on debt extinguishment	53	174
Deferred income taxes	(2,214)	(81)
Stock-based compensation	5,377	5,390
Non-cash interest expense	523	1,110
Accounts receivable	10,886	(46,564)
Inventories	(80,163)	(56,057)
Prepaid expenses and other	(325)	1,756
Accounts payable and accrued liabilities	58,210	72,792
Other, net	1,210	(1,691)
Net cash provided by operating activities	60,973	40,471
Cash flows from investing activities
Capital expenditures	(14,995)	(11,117)
Proceeds from the sale of property, plant, and equipment	38	16,426
Other, net	0	3,060
Net cash (used in) provided by investing activities	(14,957)	8,369
Cash flows from financing activities
Proceeds from exercise of stock options	55	910
Dividends paid	(9,061)	(9,271)
Borrowings under revolving credit facilities	288	423
Payments under revolving credit facilities	(288)	(423)
Principal payments under capital lease obligations	(152)	(143)
Principal payments under term loan credit facility	(15,470)	(940)
Principal payments under industrial revenue bond	0	(92)
Debt issuance costs paid	(71)	0
Convertible senior notes repurchase	0	(80,200)
Stock repurchase	(13,852)	(21,413)
Net cash used in financing activities	(38,551)	(111,149)
Net increase (decrease) in cash, cash equivalents, and restricted cash	7,465	(62,309)
Cash, cash equivalents and restricted cash at beginning of period	132,690	191,521
Cash, cash equivalents, and restricted cash at end of period	140,155	129,212
Supplemental disclosures of cash flow information:
Cash paid for interest	13,661	14,071
Cash paid for income taxes	$ 10,567	$ 12,700

CONDENSED CONSOLIDATED STATEM_4

CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Losses	Treasury Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period (in shares)		57,564,493
Balance at beginning of period (in shares)		58,037,554
Balance at beginning of period at Dec. 31, 2017	$ 506,063	$ 737	$ 653,435	$ 98,728	$ (2,385)	$ (244,452)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income for the year	21,272			21,272
Foreign currency translation and other	409				409
Stock-based compensation (in shares)		380,588
Stock-based compensation	2,657	$ 6	2,651
Stock repurchase	(5,412)					(5,412)
Equity component of convertible senior notes repurchase	(7,830)		(7,830)
Common stock dividends	(4,748)			(4,748)
Stock option exercises (in shares)		92,473
Stock option exercises	861	$ 1	860
Balance at end of period (in shares) at Mar. 31, 2018		58,037,554
Balance at end of period at Mar. 31, 2018	513,272	$ 744	649,116	115,252	(1,976)	(249,864)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period (in shares)		57,267,116
Balance at beginning of period at Dec. 31, 2017	506,063	$ 737	653,435	98,728	(2,385)	(244,452)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income for the year	53,174
Foreign currency translation and other	(236)
Balance at end of period (in shares) at Jun. 30, 2018		57,267,116
Balance at end of period at Jun. 30, 2018	499,215	$ 744	624,209	142,747	(2,620)	(265,865)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period (in shares)		58,037,554
Balance at beginning of period (in shares)		57,267,116
Balance at beginning of period at Mar. 31, 2018	513,272	$ 744	649,116	115,252	(1,976)	(249,864)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income for the year	31,902			31,902
Foreign currency translation and other	(644)				(644)
Stock-based compensation (in shares)		24,040
Stock-based compensation	2,733	$ 0	2,733
Stock repurchase (in shares)		(798,992)
Stock repurchase	(16,001)					(16,001)
Equity component of convertible senior notes repurchase	(27,689)		(27,689)
Common stock dividends	(4,407)			(4,407)
Stock option exercises (in shares)		4,514
Stock option exercises	49	$ 0	49
Balance at end of period (in shares) at Jun. 30, 2018		57,267,116
Balance at end of period at Jun. 30, 2018	499,215	$ 744	624,209	142,747	(2,620)	(265,865)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period (in shares)		57,267,116
Balance at beginning of period (in shares)		55,135,788
Balance at beginning of period (in shares)		55,424,133
Balance at beginning of period at Dec. 31, 2018	473,849	$ 744	629,039	150,244	(3,343)	(302,835)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income for the year	14,780			14,780
Foreign currency translation and other	298				298
Stock-based compensation (in shares)		273,158
Stock-based compensation	2,586	$ 5	2,581
Stock repurchase	(2,635)					(2,635)
Common stock dividends	(4,512)			(4,512)
Unrealized loss on derivative instruments, net of tax	(814)				(814)
Stock option exercises (in shares)		15,187
Stock option exercises	54		54
Balance at end of period (in shares) at Mar. 31, 2019		55,424,133
Balance at end of period at Mar. 31, 2019	483,606	$ 749	631,674	160,512	(3,859)	(305,470)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period (in shares)		54,675,691
Balance at beginning of period at Dec. 31, 2018	473,849	$ 744	629,039	150,244	(3,343)	(302,835)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income for the year	45,740
Foreign currency translation and other	183
Balance at end of period (in shares) at Jun. 30, 2019		54,675,691
Balance at end of period at Jun. 30, 2019	501,565	$ 749	634,465	186,934	(3,896)	(316,687)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period (in shares)		55,424,133
Balance at beginning of period (in shares)		54,675,691
Balance at beginning of period at Mar. 31, 2019	483,606	$ 749	631,674	160,512	(3,859)	(305,470)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income for the year	30,960			30,960
Foreign currency translation and other	(115)				(115)
Stock-based compensation (in shares)		26,639
Stock-based compensation	2,791	$ 0	2,791
Stock repurchase (in shares)		(775,081)
Stock repurchase	(11,217)					(11,217)
Common stock dividends	(4,538)			(4,538)
Unrealized loss on derivative instruments, net of tax	78				78
Stock option exercises (in shares)
Stock option exercises	0
Balance at end of period (in shares) at Jun. 30, 2019		54,675,691
Balance at end of period at Jun. 30, 2019	$ 501,565	$ 749	$ 634,465	$ 186,934	$ (3,896)	$ (316,687)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance at beginning of period (in shares)		54,675,691

BASIS OF PRESENTATION

BASIS OF PRESENTATION	6 Months Ended
	Jun. 30, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
BASIS OF PRESENTATION	BASIS OF PRESENTATION The condensed consolidated financial statements of Wabash National Corporation (the “Company”) have been prepared without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). Certain information and footnote disclosures normally included in financial statements prepared in accordance with generally accepted accounting principles have been condensed or omitted pursuant to such rules and regulations. In the opinion of management, the accompanying condensed consolidated financial statements contain all material adjustments (consisting only of normal recurring adjustments) necessary to present fairly the consolidated financial position of the Company, its results of operations and cash flows. The condensed consolidated financial statements included herein should be read in conjunction with the consolidated financial statements and the notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018 .

NEW ACCOUNTING PRONOUNCEMENTS

NEW ACCOUNTING PRONOUNCEMENTS	6 Months Ended
	Jun. 30, 2019
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
NEW ACCOUNTING PRONOUNCEMENTS	NEW ACCOUNTING PRONOUNCEMENTS In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-2, “Leases (Topic 842)”. This update requires lessees to recognize, on the balance sheet, assets and liabilities for the rights and obligations created by leases of greater than twelve months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. The Company has identified its existing lease contracts and calculated the right-of-use (“ROU”) assets, which are reflected in Other Assets on the Condensed Consolidated Balance Sheets, and lease liabilities, which are reflected in the Other Accrued Liabilities and Other Non-Current Liabilities on the Condensed Consolidated Balance Sheets. This guidance was effective for the Company as of January 1, 2019. Adoption of the new standard resulted in the recording of ROU assets and lease liabilities of $9.9 million as of January 1, 2019. The FASB has issued further ASUs related to the standard providing an optional transition method allowing entities to not recast comparative periods. The Company elected the practical expedients upon transition that retained the lease classification and initial direct costs for any leases that exist prior to adoption of the standard. The Company did not reassess whether any contracts entered into prior to adoption are leases. The Company has approximately $15.1 million of noncancelable future rental obligations as of June 30, 2019 , as shown in Note 8 .

REVENUE RECOGNITION

REVENUE RECOGNITION	6 Months Ended
	Jun. 30, 2019
Revenue from Contract with Customer [Abstract]
REVENUE RECOGNITION	REVENUE RECOGNITION The Company adopted FASB ASU No. 2014-09, “Revenue from Contracts with Customers (Topic 606)” effective January 1, 2018. The adoption of Topic 606 did not have a material impact on the consolidated financial statements. The Company recognizes revenue from the sale of its products when obligations under the terms of a contract with our customers are satisfied; this occurs with the transfer of control of our products and replacement parts or throughout the completion of service work. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring promised goods or services to a customer and excludes all taxes collected from the customer. Shipping and handling fees are included in Net Sales and the associated costs included in Cost of Sales in the Condensed Consolidated Statements of Operations. For shipping and handling costs that take place after the transfer of control, the Company is applying the practical expedient and treating it as a fulfillment cost. Incidental items that are immaterial in the context of the contract are recognized as expense. For performance obligations satisfied over time, which include certain equipment-related sales within our Diversified Products reportable segment that have no alternative use and contain an enforceable right to payment, as well as service work whereby the customer simultaneously receives and consumes the benefits provided, the Company recognizes revenue on the basis of the Company’s efforts or inputs to the satisfaction of these performance obligations, measured by actual total cost incurred to the total estimated costs for each project. Total revenue recognized over time was not material to the consolidated financial statements for all periods presented. The Company has identified three separate and distinct performance obligations: 1) the sale of a trailer or equipment, 2) the sale of replacement parts, and 3) service work. For trailer, truck body, equipment, and replacement part sales, control is transferred and revenue is recognized from the sale upon shipment to or pick up by the customer in accordance with the contract terms. The Company does not have any material extended payment terms as payment is received shortly after the point of sale. Accounts receivable are recorded when the right to consideration becomes unconditional. The Company does have customers who pay for the product prior to the transfer of control which is recorded as customer deposits in Other Accrued Liabilities as shown in Note 9 . Customer deposits are recognized as revenue when the Company performs its obligations under the contract and transfers control of the product.

INVENTORIES

INVENTORIES	6 Months Ended
	Jun. 30, 2019
Inventory Disclosure [Abstract]
INVENTORIES	INVENTORIES Inventories consist of the following components (in thousands): June 30, December 31, Raw materials and components $ 139,236 $ 115,083 Finished goods 99,351 48,698 Work in progress 18,095 13,119 Aftermarket parts 7,307 6,421 Used trailers 578 1,083 $ 264,567 $ 184,404

PREPAID EXPENSES

PREPAID EXPENSES	6 Months Ended
	Jun. 30, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
PREPAID EXPENSES	PREPAID EXPENSES Prepaid expenses and other current assets consist of the following (in thousands): June 30, December 31, Chassis converter pool agreements $ 11,704 $ 22,273 Assets held for sale 3,009 3,039 Income tax receivables 205 9,872 Insurance premiums & maintenance agreements 11,184 3,313 All other 14,448 12,764 $ 40,550 $ 51,261 Chassis converter pool agreements represent chassis transferred to the Company on a restricted basis by the manufacturer, who retains the sole authority to authorize commencement of work on the chassis and to make certain other decisions with respect to the chassis including the terms and pricing of sales to the manufacturer’s dealers. Assets held for sale are related to the Company’s former branch locations and businesses the Company has sold or intends to sell within one year. Insurance premiums and maintenance agreements are charged to expenses over the contractual life, which is generally one year or less. Additionally, prepaid expenses include costs in excess of billings on contracts for which the Company recognizes revenue over time as services are completed. There is no restricted cash included in prepaid expenses and other for the periods ending June 30, 2019 and December 31, 2018.

DEBT

DEBT	6 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
DEBT	DEBT Long-term debt consists of the following (in thousands): June 30, December 31, Senior notes due 2025 $ 325,000 $ 325,000 Term loan credit agreement 170,228 185,699 495,228 510,699 Less: unamortized discount and fees (5,363 ) (5,801 ) Less: current portion — (1,880 ) $ 489,865 $ 503,018 Senior Notes On September 26, 2017, the Company issued Senior Notes due 2025 (the “Senior Notes”) with an aggregate principal amount of $325 million . The Senior Notes bear interest at the rate of 5.50% per annum from the date of issuance, and pay interest semi-annually in cash on April 1 and October 1 of each year, beginning on April 1, 2018. The Company used the net proceeds of $318.9 million from the sale of the Senior Notes to finance a portion of the acquisition of Supreme and to pay related fees and expenses. The Senior Notes are guaranteed on a senior unsecured basis by all direct and indirect existing and future domestic restricted subsidiaries, subject to certain restrictions. The Senior Notes and related guarantees are the Company’s and the guarantors’ general unsecured senior obligations and are subordinate to all of the Company’s and the guarantors’ existing and future secured debt to the extent of the assets securing that secured obligation. In addition, the Senior Notes are structurally subordinate to any existing and future debt of any of the Company’s subsidiaries that are not guarantors, to the extent of the assets of those subsidiaries. The Senior Notes will mature on October 1, 2025 . The indenture for the Senior Notes restricts the Company’s ability and the ability of certain of its subsidiaries, subject to certain exceptions and qualifications, to: (i) incur additional indebtedness; (ii) pay dividends or make other distributions in respect of, or repurchase or redeem, its capital stock or with respect to any other interest or participation in, or measured by, its profits; (iii) make loans and certain investments; (iv) sell assets; (v) create or incur liens; (vi) enter into transactions with affiliates; and (vii) consolidate, merge or sell all or substantially all of its assets. The indenture for the Senior Notes contains customary events of default, including payment defaults, breaches of covenants, failure to pay certain judgments and certain events of bankruptcy, insolvency and reorganization. As of June 30, 2019 , the Company was in compliance with all covenants. Contractual coupon interest expense and accretion of discount and fees for the Senior Notes for the three- and six-month periods ended June 30, 2019 and 2018 , was $4.6 million and $9.2 million , respectively, and is included in Interest Expense on the Company’s Condensed Consolidated Statements of Operations. Revolving Credit Agreement On December 21, 2018, the Company entered into the Second Amended and Restated Credit Agreement (the “Revolving Credit Agreement”), among the Company, certain of its subsidiaries as borrowers (together with the Company, the “Borrowers”), the lenders from time to time party thereto, Wells Fargo Capital Finance, LLC, and Citizens Business Capital, which amended and restated the Company’s existing amended and restated revolving credit agreement, dated as of May 8, 2012. The Revolving Credit Agreement is guaranteed by certain subsidiaries of the Company (the “Revolver Guarantors”) and is secured by (i) first priority security interests in substantially all personal property of the Borrowers and the Revolver Guarantors, consisting of accounts receivable, inventory, cash, deposit and securities accounts and any cash or other assets in such accounts and, to the extent evidencing or otherwise related to such property, all general intangibles, licenses, intercompany debt, letter of credit rights, commercial tort claims, chattel paper, instruments, supporting obligations, documents and payment intangibles (collectively, the “Revolver Priority Collateral”), and (ii) second-priority liens on and security interests in (A) equity interests of each direct subsidiary held by the Borrowers and each Revolver Guarantor, and (B) substantially all other tangible and intangible assets of the Borrowers and the Revolver Guarantors, excluding real property (the “Term Priority Collateral”). The Revolving Credit Agreement has a scheduled maturity date of December 21, 2023 , subject to certain springing maturity events. Under the Revolving Credit Agreement, the lenders agree to make available to the Company a $175 million revolving credit facility. The Company has the option to increase the total commitment under the facility to up to $275 million , subject to certain conditions. Subject to availability, the Revolving Credit Agreement provides for a letter of credit subfacility in an amount not in excess of $15 million , and allows for swingline loans in an amount not in excess of $17.5 million . Outstanding borrowings under the Revolving Credit agreement will bear interest at an annual rate, at the Borrowers’ election, equal to (i) LIBOR plus a margin ranging from 1.25% to 1.75% or (ii) a base rate plus a margin ranging from 0.25% to 0.75% , in each case depending upon the monthly average excess availability under the revolving loan facility. The Borrowers are required to pay a monthly unused line fee equal to 0.20% times the average daily unused availability along with other customary fees and expenses thereunder. The Revolving Credit Agreement contains customary covenants limiting the ability of the Company and certain of its affiliates to, among other things, pay cash dividends, incur debt or liens, redeem or repurchase stock, enter into transactions with affiliates, merge, dissolve, repay subordinated indebtedness, make investments and dispose of assets. In addition, the Company will be required to maintain a minimum fixed charge coverage ratio of not less than 1.0 to 1.0 as of the end of any period of 12 fiscal months (commencing with the month ending December 31, 2018) when excess availability under the Revolving Credit Agreement is less than 10% of the total revolving commitment. As of June 30, 2019 and 2018 , the Company had no outstanding borrowings under the Credit Agreement and was in compliance with all covenants. The Company’s liquidity position, defined as cash on hand and available borrowing capacity on the Revolving Credit Facility, amounted to $307.4 million as of June 30, 2019 , and $287.7 million as of June 30, 2018 . Term Loan Credit Agreement In May 2012, the Company entered into the Term Loan Credit Agreement (as amended, the “Term Loan Credit Agreement”), which provides for, among other things, (x) a senior secured term loan of $188.0 million that matures on March 19, 2022, subject to certain springing maturity events (the “Term Loans”), and (y) an uncommitted accordion feature to provide for additional senior secured term loans of up to $75 million plus an unlimited amount provided that the senior secured leverage ratio would not exceed 3.00 to 1.00, subject to certain conditions (the “Term Loan Facility”). On November 17, 2017, the Company entered into Amendment No. 5 to the Term Loan Credit Agreement (“Amendment No. 5”). As of the Amendment No. 5 date, $188.0 million of the Term Loans were outstanding. Under Amendment No. 5, the lenders agreed to provide to the Company term loans in the same aggregate principal amount of the outstanding Term Loans, which were used to refinance the outstanding Term Loans. The Term Loan Credit Agreement is guaranteed by certain of the Company’s subsidiaries, and is secured by (i) first-priority liens on, and security interests in, the Term Priority Collateral, and (ii) second-priority security interests in the Revolver Priority Collateral. The Term Loan Credit Agreement contains customary covenants limiting the Company’s ability to, among other things, pay cash dividends, incur debt or liens, redeem or repurchase stock, enter into transactions with affiliates, merge, dissolve, pay off subordinated indebtedness, make investments and dispose of assets. As of June 30, 2019 , the Company was in compliance with all covenants. For the three- and six-month periods ended June 30, 2019 , under the Term Loan Credit Agreement the Company paid interest of $2.2 million and $4.4 million , respectively, and principal of $15.0 million and $15.5 million during each period. For the three- and six-month periods ended June 30, 2018 , the Company paid interest of $2.0 million and $3.9 million , respectively, and principal of $0.5 million and $0.9 million during each period. The Company recognized a loss on debt extinguishment of $0.1 million in connection with the prepayment of principal in the second quarter of 2019, included in Other, net in the Condensed Consolidated Statement of Operations. As of June 30, 2019 , the Company had $170.2 million outstanding under the Term Loan Credit Agreement, of which none was classified as current on the Company’s Condensed Consolidated Balance Sheet. For each three-month period ended June 30, 2019 and 2018 , the Company incurred charges of less than $0.1 million , and $0.1 million for each six-month period ended June 30, 2019 and 2018 , for amortization of fees and original issuance discount, which is included in Interest Expense in the Condensed Consolidated Statements of Operations.

FINANCIAL DERIVATIVE INSTRUMENT

FINANCIAL DERIVATIVE INSTRUMENTS	6 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
FINANCIAL DERIVATIVE INSTRUMENTS	FINANCIAL DERIVATIVE INSTRUMENTS Commodity Pricing Risk As of June 30, 2019 , the Company was party to commodity swap contracts for specific commodities with notional amounts of approximately $ 31.4 million. The Company uses commodity swap contracts to mitigate the risks associated with fluctuations in commodity prices impacting its cash flows related to inventory purchases from suppliers. The Company does not hedge all commodity price risk. At inception, the Company designated the commodity swap contracts as cash flow hedges. The contracts mature at specified monthly settlement dates through April 2020. The effective portion of the hedging transaction is recognized in Accumulated Other Comprehensive Income (“AOCI”) and transferred to earnings when the forecasted hedged transaction takes place or when the forecasted hedged transaction is no longer probable to occur. Financial Statement Presentation As of June 30, 2019 and December 31, 2018 , the fair value carrying amount of the Company’s derivative instruments were recorded as follows (in thousands): Asset / (Liability) Derivatives Balance Sheet Caption June 30, December 31, Derivatives designated as hedging instruments Commodity swap contracts Prepaid expenses and other $ 32 $ 17 Commodity swap contracts Other accrued liabilities (2,013 ) (1,146 ) Total derivatives designated as hedging instruments $ (1,981 ) $ (1,129 ) The following table summarizes the gain or loss recognized in AOCI as of June 30, 2019 and December 31, 2018 and the amounts reclassified from AOCI into earnings for the three and six months ended June 30, 2019 and 2018 (in thousands): Amount of Gain (Loss) Recognized in AOCI on Derivatives (Effective Portion, net of tax) Location of Gain (Loss) Reclassified from AOCI into Earnings Amount of Gain (Loss) Reclassified from AOCI into Earnings June 30, December 31, Three Months Ended Six Months Ended 2019 2018 2019 2018 Derivatives instruments Commodity swap contracts $ (1,501 ) $ (765 ) Cost of sales $ (478 ) $ — $ (646 ) $ — Over the next 12 months, the Company expects to reclassify approximately $ 2.0 million of pretax deferred losses , related to the commodity swap contracts, from AOCI to cost of sales as inventory purchases are settled.

LEASES

LEASES	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
LEASES	LEASES The Company leases certain industrial spaces, office space, land, and equipment. Leases with an initial term of 12 months or less are not recorded on the balance sheet; the Company recognizes lease expense for these leases on a straight-line basis over the lease term. Some leases include one or more options to renew, with renewal terms that can extend the lease term from one to 5 years . The exercise of lease renewal options is at the Company’s sole discretion. Certain leases also include options to purchase the leased property. The depreciable life of assets and leasehold improvements are limited by the expected lease term, unless there is a transfer of title or purchase option reasonably certain of exercise. Leased assets obtained in exchange for new operating lease liabilities in the current period were not material. Leased assets and liabilities included within the Condensed Consolidated Balance Sheets consist of the following (in thousands): Classification June 30, 2019 Right-of-Use Assets Operating Other assets $ 12,562 Finance Property, plant and equipment, net of depreciation 3,017 Total Leased ROU Assets $ 15,579 Liabilities Current Operating Other accrued liabilities $ 3,870 Finance Current portion of finance lease obligations 317 Noncurrent Operating Non-current liabilities 8,767 Finance Finance lease obligations 544 Total lease liabilities $ 13,498 Lease costs included in the Condensed Consolidated Statements of Operations consist of the following (in thousands): Classification Three Months Ended Six Months Ended Operating lease cost Cost of sales, selling expenses and general and administrative expense $ 1,126 $ 2,198 Finance lease cost Amortization of ROU leased assets Depreciation and amortization 36 72 Interest on lease liabilities Interest expense 17 35 Net lease cost $ 1,179 $ 2,305 Maturity of the Company’s lease liabilities is as follows (in thousands): Operating Leases Finance Leases Total 2019 (remainder) $ 2,153 $ 180 $ 2,333 2020 3,621 361 3,982 2021 3,032 361 3,393 2022 1,797 30 1,827 2023 1,594 — 1,594 Thereafter 2,008 — 2,008 Total lease payments $ 14,205 $ 932 $ 15,137 Less: interest 1,568 71 Present value of lease payments $ 12,637 $ 861 As most of the Company’s leases do not provide an implicit rate, the Company uses its incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. Remaining lease term and discount rates are as follows: June 30, 2019 Weighted average remaining lease term (years) Operating leases 4.6 Finance leases 2.6 Weighted average discount rate Operating leases 5.16 % Finance leases 6.16 % Lease costs included in the Condensed Consolidated Statements of Cash Flows are as follows (in thousands): Six Months Ended Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 2,124 Operating cash flows from finance leases $ 35 Financing cash flows from finance leases $ 152
LEASES	LEASES The Company leases certain industrial spaces, office space, land, and equipment. Leases with an initial term of 12 months or less are not recorded on the balance sheet; the Company recognizes lease expense for these leases on a straight-line basis over the lease term. Some leases include one or more options to renew, with renewal terms that can extend the lease term from one to 5 years . The exercise of lease renewal options is at the Company’s sole discretion. Certain leases also include options to purchase the leased property. The depreciable life of assets and leasehold improvements are limited by the expected lease term, unless there is a transfer of title or purchase option reasonably certain of exercise. Leased assets obtained in exchange for new operating lease liabilities in the current period were not material. Leased assets and liabilities included within the Condensed Consolidated Balance Sheets consist of the following (in thousands): Classification June 30, 2019 Right-of-Use Assets Operating Other assets $ 12,562 Finance Property, plant and equipment, net of depreciation 3,017 Total Leased ROU Assets $ 15,579 Liabilities Current Operating Other accrued liabilities $ 3,870 Finance Current portion of finance lease obligations 317 Noncurrent Operating Non-current liabilities 8,767 Finance Finance lease obligations 544 Total lease liabilities $ 13,498 Lease costs included in the Condensed Consolidated Statements of Operations consist of the following (in thousands): Classification Three Months Ended Six Months Ended Operating lease cost Cost of sales, selling expenses and general and administrative expense $ 1,126 $ 2,198 Finance lease cost Amortization of ROU leased assets Depreciation and amortization 36 72 Interest on lease liabilities Interest expense 17 35 Net lease cost $ 1,179 $ 2,305 Maturity of the Company’s lease liabilities is as follows (in thousands): Operating Leases Finance Leases Total 2019 (remainder) $ 2,153 $ 180 $ 2,333 2020 3,621 361 3,982 2021 3,032 361 3,393 2022 1,797 30 1,827 2023 1,594 — 1,594 Thereafter 2,008 — 2,008 Total lease payments $ 14,205 $ 932 $ 15,137 Less: interest 1,568 71 Present value of lease payments $ 12,637 $ 861 As most of the Company’s leases do not provide an implicit rate, the Company uses its incremental borrowing rate based on the information available at commencement date in determining the present value of lease payments. Remaining lease term and discount rates are as follows: June 30, 2019 Weighted average remaining lease term (years) Operating leases 4.6 Finance leases 2.6 Weighted average discount rate Operating leases 5.16 % Finance leases 6.16 % Lease costs included in the Condensed Consolidated Statements of Cash Flows are as follows (in thousands): Six Months Ended Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 2,124 Operating cash flows from finance leases $ 35 Financing cash flows from finance leases $ 152

OTHER ACCRUED LIABILITIES

OTHER ACCRUED LIABILITIES	6 Months Ended
	Jun. 30, 2019
Payables and Accruals [Abstract]
OTHER ACCRUED LIABILITIES	OTHER ACCRUED LIABILITIES The following table presents the major components of Other Accrued Liabilities (in thousands): June 30, December 31, Warranty $ 23,509 $ 22,247 Chassis converter pool agreements 11,704 22,273 Payroll and related taxes 21,530 16,096 Customer deposits 28,945 23,483 Self-insurance 12,772 9,890 Accrued interest 4,705 4,779 Operating lease obligations 3,870 — Accrued taxes 2,320 7,653 All other 11,001 9,963 $ 120,356 $ 116,384 The following table presents the changes in the product warranty accrual included in Other Accrued Liabilities (in thousands): 2019 2018 Balance as of January 1 $ 22,247 $ 20,132 Provision for warranties issued in current year 4,067 3,580 Payments (2,805 ) (2,671 ) Balance as of June 30 $ 23,509 $ 21,041 The Company offers a limited warranty for its products with a coverage period that ranges between one and 5 years , except that the coverage period for DuraPlate ® trailer panels is 10 years . The Company passes through component manufacturers’ warranties to our customers. The Company’s policy is to accrue the estimated cost of warranty coverage at the time of the sale.

FAIR VALUE MEASUREMENTS

FAIR VALUE MEASUREMENTS	6 Months Ended
	Jun. 30, 2019
Fair Value Disclosures [Abstract]
FAIR VALUE MEASUREMENTS	FAIR VALUE MEASUREMENTS The Company’s fair value measurements are based upon a three-level valuation hierarchy. These valuation techniques are based upon the transparency of inputs (observable and unobservable) to the valuation of an asset or liability as of the measurement date. Observable inputs reflect market data obtained from independent sources, while unobservable inputs reflect the Company’s market assumptions. These two types of inputs create the following fair value hierarchy: ▪ Level 1 — Valuation is based on quoted prices for identical assets or liabilities in active markets; ▪ Level 2 — Valuation is based on quoted prices for similar assets or liabilities in active markets, or other inputs that are observable for the asset or liability, either directly or indirectly, for the full term of the financial instrument; and ▪ Level 3 — Valuation is based upon other unobservable inputs that are significant to the fair value measurement. Recurring Fair Value Measurements The Company maintains a non-qualified deferred compensation plan which is offered to senior management and other key employees. The amount owed to participants is an unfunded and unsecured general obligation of the Company. Participants are offered various investment options with which to invest the amount owed to them, and the plan administrator maintains a record of the liability owed to participants by investment. To minimize the impact of the change in market value of this liability, the Company has elected to purchase a separate portfolio of investments through the plan administrator similar to those chosen by the participant. The investments purchased by the Company include mutual funds, which are classified as Level 1, and life-insurance contracts valued based on the performance of underlying mutual funds, which are classified as Level 2. Additionally, upon the Company’s acquisition of Supreme, the Company acquired a pool of investments made by a wholly owned captive insurance subsidiary. These investments are comprised of mutual funds, which are classified as Level 1. The fair value of the Company’s derivatives is estimated with a market approach using thrid-party pricing services, which have been corroborated with data from active markets or broker quotes. Fair value measurements and the fair value hierarchy level for the Company’s assets and liabilities measured at fair value on a recurring basis, are shown below (in thousands): Frequency Asset / (Liability) Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs June 30, 2019 Commodity swap contracts Recurring (1,981 ) — (1,981 ) — Mutual funds Recurring 6,356 6,356 — — Life-insurance contracts Recurring 15,475 — 15,475 — December 31, 2018 Commodity swap contracts Recurring (1,129 ) — (1,129 ) — Mutual funds Recurring 4,140 4,140 — — Life-insurance contracts Recurring 15,333 — 15,333 — Estimated Fair Value of Debt The estimated fair value of debt at June 30, 2019 consists primarily of the Senior Notes due 2025 and borrowings under the Term Loan Credit Agreement (see Note 6). The fair value of the Senior Notes due 2025, Term Loan Credit Agreement and the Revolving Credit Facility are based upon third party pricing sources, which generally do not represent daily market activity or represent data obtained from an exchange, and are classified as Level 2. The interest rates on the Company’s borrowings under the Revolving Credit Facility are adjusted regularly to reflect current market rates and thus carrying value approximates fair value for these borrowings. All other debt approximates their fair value as determined by discounted cash flows and are classified as Level 3. The Company’s carrying and estimated fair value of debt at June 30, 2019 and December 31, 2018 were as follows (in thousands): June 30, 2019 December 31, 2018 Carrying Value Fair Value Carrying Value Fair Value Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 Instrument Senior notes due 2025 $ 320,252 $ — $ 308,750 $ — $ 319,941 $ — $ 278,688 $ — Term loan credit agreement 169,649 — 169,803 — 184,957 — 181,985 — $ 489,901 $ — $ 478,553 $ — $ 504,898 $ — $ 460,673 $ — The fair value of debt is based on current public market prices for disclosure purposes only. Unrealized gains or losses are not recognized in the financial statements as long-term debt is presented at the carrying value, net of unamortized premium or discount and unamortized deferred financing costs in the financial statements.

CONTINGENCIES

CONTINGENCIES	6 Months Ended
	Jun. 30, 2019
Commitments and Contingencies Disclosure [Abstract]
CONTINGENCIES	CONTINGENCIES As of June 30, 2019 , the Company was named as a defendant or was otherwise involved in numerous legal proceedings and governmental examinations, in connection with the conduct of its business activities, in various jurisdictions, both in the United States and internationally. On the basis of information currently available to it, management does not believe that existing proceedings and investigations will have a material impact on our consolidated financial condition or liquidity if determined in a manner adverse to the Company. However, such matters are unpredictable, and we could incur judgments or enter into settlements for current or future claims that could materially and adversely affect our financial statements. Costs associated with the litigation and settlements of legal matters are reported within General and Administrative Expenses in the Condensed Consolidated Statements of Operations. Environmental Disputes In August 2014, the Company received notice as a potentially responsible party (“PRP”) by the South Carolina Department of Health and Environmental Control (“DHEC”) pertaining to the Philip Services Site located in Rock Hill, South Carolina pursuant to the Comprehensive Environmental Response, Compensation and Liability Act and corresponding South Carolina statutes. PRPs include parties identified through manifest records as having contributed to deliveries of hazardous substances to the Philip Services Site between 1979 and 1999. The DHEC’s allegation that the Company was a PRP arises out of four manifest entries in 1989 under the name of a company unaffiliated with Wabash National (or any of its former or current subsidiaries) that purport to be delivering a de minimis amount of hazardous waste to the Philip Services Site “c/o Wabash National Corporation.” As such, the Philip Services Site PRP Group (“PRP Group”) notified Wabash in August 2014 that it was offering the Company the opportunity to resolve any liabilities associated with the Philip Services Site by entering into a Cash Out and Reopener Settlement Agreement (the “Settlement Agreement”) with the PRP Group, as well as a Consent Decree with the DHEC. The Company has accepted the offer from the PRP Group to enter into the Settlement Agreement and Consent Decree, while reserving its rights to contest its liability for any deliveries of hazardous materials to the Philips Services Site. The requested settlement payment is immaterial to the Company’s financial conditions or operations, and as a result, if the Settlement Agreement and Consent Decree are finalized, the payment to be made by the Company thereunder is not expected to have a material adverse effect on the Company’s financial condition or results of operations. Supreme Litigation Prior to the Company’s acquisition of Supreme, on November 4, 2016, a putative class action lawsuit was filed against Supreme Corporation, Mark D. Weber (Supreme’s former Chief Executive Officer) and Matthew W. Long (Supreme’s former Chief Financial Officer) in the United States District Court for the Central District of California alleging the defendants violated Sections 10(b) and 20(a) of the Securities Exchange Act of 1934 and Rule 10b-5 by making material, misleading statements in July 2016 regarding projected backlog. The plaintiff seeks to recover unspecified damages. On February 14, 2017, the court transferred the venue of the case to the Northern District of Indiana upon the joint stipulation of the plaintiff and the defendants. An amended complaint was filed on April 24, 2017 challenging statements made during a putative class period of October 22, 2015, through October 21, 2016. On May 24, 2018, the Court granted Supreme’s motion to dismiss all claims for failure to state a claim. On July 13, 2018, the plaintiffs filed a second amended complaint. On August 24, 2018, Supreme filed a second motion to dismiss for failure to state a claim, and requested dismissal with prejudice. On March 29, 2019, the Court granted Supreme’s motion and dismissed Plaintiff’s second amended complaint, with prejudice. Plaintiff filed a notice of appeal on April 29, 2019, and Appellant’s Brief is currently due on August 7, 2019. Chassis Converter Pool Agreements The Company, through Supreme, obtains most vehicle chassis for its specialized vehicle products directly from the chassis manufacturers under converter pool agreements. Chassis are obtained from the manufacturers based on orders from customers, and in some cases, for unallocated orders. The agreements generally state that the manufacturer will provide a supply of chassis to be maintained at the Company’s facilities with the condition that we will store such chassis and will not move, sell, or otherwise dispose of such chassis except under the terms of the agreement. In addition, the manufacturer typically retains the sole authority to authorize commencement of work on the chassis and to make certain other decisions with respect to the chassis including the terms and pricing of sales of the chassis to the manufacturer’s dealers. The manufacturer also does not transfer the certificate of origin to the Company nor permit the Company to sell or transfer the chassis to anyone other than the manufacturer (for ultimate resale to a dealer). Although the Company is party to related finance agreements with manufacturers, the Company has not historically settled, nor expects to in the future settle, any related obligations in cash. Instead, the obligation is settled by the manufacturer upon reassignment of the chassis to an accepted dealer, and the dealer is invoiced for the chassis by the manufacturer. Accordingly, as of June 30, 2019 , the Company’s outstanding chassis converter pool with the manufacturer totaled $11.7 million and has included this financing agreement on the Company’s Consolidated Balance Sheets within Prepaid expenses and other and Other accrued liabilities . All other chassis programs through its Supreme subsidiary are handled as consigned inventory belonging to the manufacturer and totaled approximately $4.7 million . Under these agreements, if the chassis is not delivered to a customer within a specified time frame the Company is required to pay a finance or storage charge on the chassis. Additionally, the Company receives finance support funds from manufacturers when the chassis are assigned into the Company’s chassis pool. Typically, chassis are converted and delivered to customers within 90 days of the receipt of the chassis by the Company.

NET INCOME PER SHARE

NET INCOME PER SHARE	6 Months Ended
	Jun. 30, 2019
Earnings Per Share [Abstract]
NET INCOME PER SHARE	NET INCOME PER SHARE Per share results have been calculated based on the average number of common shares outstanding. The calculation of basic and diluted net income per share is determined using net income applicable to common stockholders as the numerator and the number of shares included in the denominator as follows (in thousands, except per share amounts): Three Months Ended Six Months Ended 2019 2018 2019 2018 Basic net income per share: Net income applicable to common stockholders $ 30,960 $ 31,902 $ 45,740 $ 53,174 Weighted average common shares outstanding 55,197 57,879 55,233 57,836 Basic net income per share $ 0.56 $ 0.55 $ 0.83 $ 0.92 Diluted net income per share: Net income applicable to common stockholders $ 30,960 $ 31,902 $ 45,740 $ 53,174 Weighted average common shares outstanding 55,197 57,879 55,233 57,836 Dilutive shares from assumed conversion of convertible senior notes — 435 — 1,073 Dilutive stock options and restricted stock 471 960 486 1,114 Diluted weighted average common shares outstanding 55,668 59,274 55,719 60,023 Diluted net income per share $ 0.56 $ 0.54 $ 0.82 $ 0.89 The calculation of diluted net income per share for the three and six month periods ended June 30, 2018 includes the impact of the Company’s convertible senior notes as the average stock price of the Company’s common stock during the period was above the initial conversion price of approximately $11.70 per share. The convertible notes matured in May 2018, so there were no dilutive shares in 2019.

STOCK-BASED COMPENSATION

STOCK-BASED COMPENSATION	6 Months Ended
	Jun. 30, 2019
Share-based Compensation [Abstract]
STOCK-BASED COMPENSATION	STOCK-BASED COMPENSATION The Company recognizes all share-based payments based upon their fair value. The Company grants restricted stock units subject to service, performance and/or market conditions. The Company’s policy is to recognize expense for awards that have service conditions only subject to graded vesting using the straight-line attribution method. The fair value of service and performance based units is based on the market price of a share of underlying common stock at the date of grant. The fair value of the market based units is based on a lattice valuation model. The amount of compensation costs related to restricted stock units and performance units not yet recognized was $20.2 million at June 30, 2019 for which the expense will be recognized through 2022.

STOCKHOLDERS' EQUITY

STOCKHOLDERS' EQUITY	6 Months Ended
	Jun. 30, 2019
Equity [Abstract]
STOCKHOLDERS' EQUITY	STOCKHOLDERS’ EQUITY Share Repurchase Program On November 14, 2018, the Board of Directors approved the extension of the Company’s existing stock repurchase program for an additional three -year period and authorizing up to an additional $100 million in repurchases. Stock repurchases under this program may be made in the open market or in private transactions at times and in amounts determined by the Company. As of June 30, 2019 , $ 88.8 million remained available under the program. Common and Preferred Stock The Board of Directors has the authority to issue common and unclassed preferred stock of up to 200 million shares and 25 million shares, respectively, with par value of $0.01 per share, as well as to fix dividends, voting and conversion rights, redemption provisions, liquidation preferences and other rights and restrictions. Accumulated Other Comprehensive Income Changes in AOCI by component, net of tax, for the six months ended June 30, 2019 are summarized as follows (in thousands): Foreign Currency Translation and Other Derivative Instruments Total Balances at December 31, 2018 $ (2,578 ) $ (765 ) $ (3,343 ) Net unrealized gains (losses) arising during the period (a) 298 (939 ) (641 ) Less: Net realized gains (losses) reclassified to net income (b) — (125 ) (125 ) Net change during the period 298 (814 ) (516 ) Balances at March 31, 2019 (2,280 ) (1,579 ) (3,859 ) Net unrealized gains (losses) arising during the period (c) (115 ) (279 ) (394 ) Less: Net realized gains (losses) reclassified to net income (d) — (357 ) (357 ) Net change during the period (115 ) 78 (37 ) Balances at June 30, 2019 $ (2,395 ) $ (1,501 ) $ (3,896 ) ————————— (a) Derivative instruments net of $308 thousand of tax benefit for the three months ended March 31, 2019. (b) Derivative instruments net of $42 thousand of tax benefit for the three months ended March 31, 2019. (c) Derivative instruments net of $93 thousand of tax benefit for the three months ended June 30, 2019. (d) Derivative instruments net of $121 thousand of tax benefit for the three months ended June 30, 2019. Changes in AOCI by component, net of tax, for the six months ended June 30, 2018 are summarized as follows (in thousands): Foreign Currency Translation and Other Derivative Instruments Total Balances at December 31, 2017 $ (2,385 ) $ — $ (2,385 ) Net unrealized gains (losses) arising during the period 409 — 409 Less: Net realized gains (losses) reclassified to net income — — — Net change during the period 409 — 409 Balances at March 31, 2018 (1,976 ) — (1,976 ) Net unrealized gains (losses) arising during the period (644 ) — (644 ) Less: Net realized gains (losses) reclassified to net income — — — Net change during the period (644 ) — (644 ) Balances at June 30, 2018 $ (2,620 ) $ — $ (2,620 )

INCOME TAXES

INCOME TAXES	6 Months Ended
	Jun. 30, 2019
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES For the three months ended June 30, 2019 , the Company recognized income tax expense of $10.6 million compared to $11.0 million for the same period in the prior year. The effective tax rate for this period was 25.6% compared to 25.7% for the same period in the prior year. The Company recognized income tax expense of $13.8 million in the first six months of 2019 compared to $15.9 million for the same period in the prior year. The effective tax rates for the first six months of 2019 and 2018 were 23.2% and 23.0% , respectively. These effective tax rates differ from the US Federal statutory rate of 21% primarily due to the impact of state and local taxes and recognition of excess tax benefits on share-based compensation.

SEGMENTS

SEGMENTS	6 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
SEGMENTS	SEGMENTS a. Segment Reporting The Company manages its business in three segments: Commercial Trailer Products, Diversified Products, and Final Mile Products. The Commercial Trailer Products segment manufactures standard and customized van and platform trailers and other transportation related equipment for customers who purchase directly from the Company or through independent dealers. The Diversified Products segment, comprised of three strategic business units including, Tank Trailer, Process Systems and Composites, focuses on the Company’s commitment to expand its customer base, diversify its product offerings and revenues and extend its market leadership by leveraging its proprietary DuraPlate® panel technology, drawing on its core manufacturing expertise and making available products that are complementary to truck and tank trailers and transportation equipment. The Final Mile Products segment manufactures truck bodies for customers in the final mile space. The accounting policies of the segments are the same as those described in the summary of significant accounting policies except that the Company evaluates segment performance based on income from operations. The Company has not allocated certain corporate related administrative costs, interest and income taxes included in the corporate and eliminations segment to the Company’s other reportable segments. The Company accounts for intersegment sales and transfers at cost plus a specified mark-up. Reportable segment information is as follows (in thousands): Three Months Ended June 30, 2019 Commercial Diversified Final Mile Corporate and Consolidated Net sales External customers $ 400,401 $ 90,835 $ 134,817 $ — $ 626,053 Intersegment sales 463 6,191 — (6,654 ) — Total net sales $ 400,864 $ 97,026 $ 134,817 $ (6,654 ) $ 626,053 Income (loss) from operations $ 39,918 $ 8,911 $ 9,221 $ (10,512 ) $ 47,538 Assets $ 358,880 $ 337,197 $ 496,733 $ 182,019 $ 1,374,829 Three Months Ended June 30, 2018 Commercial Diversified Final Mile Corporate and Consolidated Net sales External customers $ 402,484 $ 88,997 $ 121,209 $ — $ 612,690 Intersegment sales 23 5,088 — (5,111 ) — Total net sales $ 402,507 $ 94,085 $ 121,209 $ (5,111 ) $ 612,690 Income (loss) from operations $ 40,784 $ 4,395 $ 10,258 $ (9,396 ) $ 46,041 Assets $ 356,309 $ 353,757 $ 474,121 $ 184,944 $ 1,369,131 Six Months Ended June 30, 2019 Commercial Diversified Final Mile Corporate and Consolidated Net sales External customers $ 740,546 $ 183,015 $ 235,666 $ — $ 1,159,227 Intersegment sales 1,363 13,659 — (15,022 ) — Total net sales $ 741,909 $ 196,674 $ 235,666 $ (15,022 ) $ 1,159,227 Income (loss) from operations $ 66,239 $ 16,955 $ 11,090 $ (21,548 ) $ 72,736 Assets $ 358,880 $ 337,197 $ 496,733 $ 182,019 $ 1,374,829 Six Months Ended June 30, 2018 Commercial Diversified Final Mile Corporate and Consolidated Net sales External customers $ 729,881 $ 177,460 $ 196,668 $ — $ 1,104,009 Intersegment sales 48 11,828 — (11,876 ) — Total net sales $ 729,929 $ 189,288 $ 196,668 $ (11,876 ) $ 1,104,009 Income (loss) from operations $ 70,265 $ 9,423 $ 10,867 $ (18,859 ) $ 71,696 Assets $ 356,309 $ 353,757 $ 474,121 $ 184,944 $ 1,369,131 b. Product Information The Company offers products primarily in four general categories: (1) new trailers, (2) used trailers, (3) components, parts and service and (4) equipment and other. The following table sets forth the major product categories and their percentage of consolidated net sales (dollars in thousands): Three Months Ended June 30, 2019 Commercial Diversified Final Mile Eliminations Consolidated New trailers $ 385,842 $ 49,325 $ — $ — $ 435,167 69.5 % Used trailers 13 739 — — 752 0.1 % Components, parts and service 10,622 29,007 4,447 (6,575 ) 37,501 6.0 % Equipment and other 4,387 17,955 130,370 (79 ) 152,633 24.4 % Total net sales $ 400,864 $ 97,026 $ 134,817 $ (6,654 ) $ 626,053 100.0 % Three Months Ended June 30, 2018 Commercial Diversified Final Mile Eliminations Consolidated New trailers $ 385,131 $ 37,602 $ — $ — $ 422,733 69.0 % Used trailers 2,499 628 — — 3,127 0.5 % Components, parts and service 9,042 31,926 2,623 (5,091 ) 38,500 6.3 % Equipment and other 5,835 23,929 118,586 (20 ) 148,330 24.2 % Total net sales $ 402,507 $ 94,085 $ 121,209 $ (5,111 ) $ 612,690 100.0 % Six Months Ended June 30, 2019 Commercial Diversified Final Mile Eliminations Consolidated New trailers $ 711,661 $ 95,124 $ — $ — $ 806,785 69.6 % Used trailers 150 1,326 — — 1,476 0.1 % Components, parts and service 20,955 64,891 7,863 (14,495 ) 79,214 6.8 % Equipment and other 9,143 35,333 227,803 (527 ) 271,752 23.4 % Total net sales $ 741,909 $ 196,674 $ 235,666 $ (15,022 ) $ 1,159,227 100.0 % Six Months Ended June 30, 2018 Commercial Diversified Final Mile Eliminations Consolidated New trailers $ 695,449 $ 71,441 $ — $ — $ 766,890 69.5 % Used trailers 6,906 1,714 — — 8,620 0.8 % Components, parts and service 17,690 65,894 5,036 (11,853 ) 76,767 7.0 % Equipment and other 9,884 50,239 191,632 (23 ) 251,732 7.2 % Total net sales $ 729,929 $ 189,288 $ 196,668 $ (11,876 ) $ 1,104,009 100.0 %

NEW ACCOUNTING PRONOUNCEMENTS (

NEW ACCOUNTING PRONOUNCEMENTS (Policies)	6 Months Ended
	Jun. 30, 2019
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
NEW ACCOUNTING PRONOUNCEMENTS	NEW ACCOUNTING PRONOUNCEMENTS In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-2, “Leases (Topic 842)”. This update requires lessees to recognize, on the balance sheet, assets and liabilities for the rights and obligations created by leases of greater than twelve months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement. The Company has identified its existing lease contracts and calculated the right-of-use (“ROU”) assets, which are reflected in Other Assets on the Condensed Consolidated Balance Sheets, and lease liabilities, which are reflected in the Other Accrued Liabilities and Other Non-Current Liabilities on the Condensed Consolidated Balance Sheets. This guidance was effective for the Company as of January 1, 2019. Adoption of the new standard resulted in the recording of ROU assets and lease liabilities of $9.9 million as of January 1, 2019. The FASB has issued further ASUs related to the standard providing an optional transition method allowing entities to not recast comparative periods. The Company elected the practical expedients upon transition that retained the lease classification and initial direct costs for any leases that exist prior to adoption of the standard. The Company did not reassess whether any contracts entered into prior to adoption are leases. The Company has approximately $15.1 million of noncancelable future rental obligations as of June 30, 2019 , as shown in Note 8 .

INVENTORIES (Tables)

INVENTORIES (Tables)	6 Months Ended
	Jun. 30, 2019
Inventory Disclosure [Abstract]
Inventories	Inventories consist of the following components (in thousands): June 30, December 31, Raw materials and components $ 139,236 $ 115,083 Finished goods 99,351 48,698 Work in progress 18,095 13,119 Aftermarket parts 7,307 6,421 Used trailers 578 1,083 $ 264,567 $ 184,404

PREPAID EXPENSES (Tables)

PREPAID EXPENSES (Tables)	6 Months Ended
	Jun. 30, 2019
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Prepaid Expenses and Other Current Assets	Prepaid expenses and other current assets consist of the following (in thousands): June 30, December 31, Chassis converter pool agreements $ 11,704 $ 22,273 Assets held for sale 3,009 3,039 Income tax receivables 205 9,872 Insurance premiums & maintenance agreements 11,184 3,313 All other 14,448 12,764 $ 40,550 $ 51,261

DEBT (Tables)

DEBT (Tables)	6 Months Ended
	Jun. 30, 2019
Debt Disclosure [Abstract]
Long-Term Debt	Long-term debt consists of the following (in thousands): June 30, December 31, Senior notes due 2025 $ 325,000 $ 325,000 Term loan credit agreement 170,228 185,699 495,228 510,699 Less: unamortized discount and fees (5,363 ) (5,801 ) Less: current portion — (1,880 ) $ 489,865 $ 503,018

FINANCIAL DERIVATIVE INSTRUME_2

FINANCIAL DERIVATIVE INSTRUMENTS (Tables)	6 Months Ended
	Jun. 30, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value	As of June 30, 2019 and December 31, 2018 , the fair value carrying amount of the Company’s derivative instruments were recorded as follows (in thousands): Asset / (Liability) Derivatives Balance Sheet Caption June 30, December 31, Derivatives designated as hedging instruments Commodity swap contracts Prepaid expenses and other $ 32 $ 17 Commodity swap contracts Other accrued liabilities (2,013 ) (1,146 ) Total derivatives designated as hedging instruments $ (1,981 ) $ (1,129 )
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)	The following table summarizes the gain or loss recognized in AOCI as of June 30, 2019 and December 31, 2018 and the amounts reclassified from AOCI into earnings for the three and six months ended June 30, 2019 and 2018 (in thousands): Amount of Gain (Loss) Recognized in AOCI on Derivatives (Effective Portion, net of tax) Location of Gain (Loss) Reclassified from AOCI into Earnings Amount of Gain (Loss) Reclassified from AOCI into Earnings June 30, December 31, Three Months Ended Six Months Ended 2019 2018 2019 2018 Derivatives instruments Commodity swap contracts $ (1,501 ) $ (765 ) Cost of sales $ (478 ) $ — $ (646 ) $ —

LEASES (Tables)

LEASES (Tables)	6 Months Ended
	Jun. 30, 2019
Leases [Abstract]
Assets and Liabilities, Lessee	Leased assets and liabilities included within the Condensed Consolidated Balance Sheets consist of the following (in thousands): Classification June 30, 2019 Right-of-Use Assets Operating Other assets $ 12,562 Finance Property, plant and equipment, net of depreciation 3,017 Total Leased ROU Assets $ 15,579 Liabilities Current Operating Other accrued liabilities $ 3,870 Finance Current portion of finance lease obligations 317 Noncurrent Operating Non-current liabilities 8,767 Finance Finance lease obligations 544 Total lease liabilities $ 13,498
Lease, Cost	Remaining lease term and discount rates are as follows: June 30, 2019 Weighted average remaining lease term (years) Operating leases 4.6 Finance leases 2.6 Weighted average discount rate Operating leases 5.16 % Finance leases 6.16 % Lease costs included in the Condensed Consolidated Statements of Cash Flows are as follows (in thousands): Six Months Ended Cash paid for amounts included in the measurement of lease liabilities Operating cash flows from operating leases $ 2,124 Operating cash flows from finance leases $ 35 Financing cash flows from finance leases $ 152 Lease costs included in the Condensed Consolidated Statements of Operations consist of the following (in thousands): Classification Three Months Ended Six Months Ended Operating lease cost Cost of sales, selling expenses and general and administrative expense $ 1,126 $ 2,198 Finance lease cost Amortization of ROU leased assets Depreciation and amortization 36 72 Interest on lease liabilities Interest expense 17 35 Net lease cost $ 1,179 $ 2,305
Operating Lease, Liability, Maturity	Maturity of the Company’s lease liabilities is as follows (in thousands): Operating Leases Finance Leases Total 2019 (remainder) $ 2,153 $ 180 $ 2,333 2020 3,621 361 3,982 2021 3,032 361 3,393 2022 1,797 30 1,827 2023 1,594 — 1,594 Thereafter 2,008 — 2,008 Total lease payments $ 14,205 $ 932 $ 15,137 Less: interest 1,568 71 Present value of lease payments $ 12,637 $ 861
Finance Lease, Liability, Maturity	Maturity of the Company’s lease liabilities is as follows (in thousands): Operating Leases Finance Leases Total 2019 (remainder) $ 2,153 $ 180 $ 2,333 2020 3,621 361 3,982 2021 3,032 361 3,393 2022 1,797 30 1,827 2023 1,594 — 1,594 Thereafter 2,008 — 2,008 Total lease payments $ 14,205 $ 932 $ 15,137 Less: interest 1,568 71 Present value of lease payments $ 12,637 $ 861

OTHER ACCRUED LIABILITIES (Tabl

OTHER ACCRUED LIABILITIES (Tables)	6 Months Ended
	Jun. 30, 2019
Payables and Accruals [Abstract]
Other Accrued Liabilities	The following table presents the major components of Other Accrued Liabilities (in thousands): June 30, December 31, Warranty $ 23,509 $ 22,247 Chassis converter pool agreements 11,704 22,273 Payroll and related taxes 21,530 16,096 Customer deposits 28,945 23,483 Self-insurance 12,772 9,890 Accrued interest 4,705 4,779 Operating lease obligations 3,870 — Accrued taxes 2,320 7,653 All other 11,001 9,963 $ 120,356 $ 116,384
Changes in Product Warranty Accrual	The following table presents the changes in the product warranty accrual included in Other Accrued Liabilities (in thousands): 2019 2018 Balance as of January 1 $ 22,247 $ 20,132 Provision for warranties issued in current year 4,067 3,580 Payments (2,805 ) (2,671 ) Balance as of June 30 $ 23,509 $ 21,041

FAIR VALUE MEASUREMENTS (Tables

FAIR VALUE MEASUREMENTS (Tables)	6 Months Ended
	Jun. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value Measurements and Fair Value Hierarchy for Assets and Liabilities	Fair value measurements and the fair value hierarchy level for the Company’s assets and liabilities measured at fair value on a recurring basis, are shown below (in thousands): Frequency Asset / (Liability) Quoted Prices in Active Markets for Identical Assets Significant Other Observable Inputs Significant Unobservable Inputs June 30, 2019 Commodity swap contracts Recurring (1,981 ) — (1,981 ) — Mutual funds Recurring 6,356 6,356 — — Life-insurance contracts Recurring 15,475 — 15,475 — December 31, 2018 Commodity swap contracts Recurring (1,129 ) — (1,129 ) — Mutual funds Recurring 4,140 4,140 — — Life-insurance contracts Recurring 15,333 — 15,333 —
Financial Assets and Liabilities Accounted For at Fair Value on Recurring Basis	The Company’s carrying and estimated fair value of debt at June 30, 2019 and December 31, 2018 were as follows (in thousands): June 30, 2019 December 31, 2018 Carrying Value Fair Value Carrying Value Fair Value Level 1 Level 2 Level 3 Level 1 Level 2 Level 3 Instrument Senior notes due 2025 $ 320,252 $ — $ 308,750 $ — $ 319,941 $ — $ 278,688 $ — Term loan credit agreement 169,649 — 169,803 — 184,957 — 181,985 — $ 489,901 $ — $ 478,553 $ — $ 504,898 $ — $ 460,673 $ —

NET INCOME PER SHARE (Tables)

NET INCOME PER SHARE (Tables)	6 Months Ended
	Jun. 30, 2019
Earnings Per Share [Abstract]
Basic and Diluted Net Income Per Share	The calculation of basic and diluted net income per share is determined using net income applicable to common stockholders as the numerator and the number of shares included in the denominator as follows (in thousands, except per share amounts): Three Months Ended Six Months Ended 2019 2018 2019 2018 Basic net income per share: Net income applicable to common stockholders $ 30,960 $ 31,902 $ 45,740 $ 53,174 Weighted average common shares outstanding 55,197 57,879 55,233 57,836 Basic net income per share $ 0.56 $ 0.55 $ 0.83 $ 0.92 Diluted net income per share: Net income applicable to common stockholders $ 30,960 $ 31,902 $ 45,740 $ 53,174 Weighted average common shares outstanding 55,197 57,879 55,233 57,836 Dilutive shares from assumed conversion of convertible senior notes — 435 — 1,073 Dilutive stock options and restricted stock 471 960 486 1,114 Diluted weighted average common shares outstanding 55,668 59,274 55,719 60,023 Diluted net income per share $ 0.56 $ 0.54 $ 0.82 $ 0.89

STOCKHOLDERS' EQUITY (Tables)

STOCKHOLDERS' EQUITY (Tables)	6 Months Ended
	Jun. 30, 2019
Equity [Abstract]
Changes in AOCI by Component	Changes in AOCI by component, net of tax, for the six months ended June 30, 2019 are summarized as follows (in thousands): Foreign Currency Translation and Other Derivative Instruments Total Balances at December 31, 2018 $ (2,578 ) $ (765 ) $ (3,343 ) Net unrealized gains (losses) arising during the period (a) 298 (939 ) (641 ) Less: Net realized gains (losses) reclassified to net income (b) — (125 ) (125 ) Net change during the period 298 (814 ) (516 ) Balances at March 31, 2019 (2,280 ) (1,579 ) (3,859 ) Net unrealized gains (losses) arising during the period (c) (115 ) (279 ) (394 ) Less: Net realized gains (losses) reclassified to net income (d) — (357 ) (357 ) Net change during the period (115 ) 78 (37 ) Balances at June 30, 2019 $ (2,395 ) $ (1,501 ) $ (3,896 ) ————————— (a) Derivative instruments net of $308 thousand of tax benefit for the three months ended March 31, 2019. (b) Derivative instruments net of $42 thousand of tax benefit for the three months ended March 31, 2019. (c) Derivative instruments net of $93 thousand of tax benefit for the three months ended June 30, 2019. (d) Derivative instruments net of $121 thousand of tax benefit for the three months ended June 30, 2019. Changes in AOCI by component, net of tax, for the six months ended June 30, 2018 are summarized as follows (in thousands): Foreign Currency Translation and Other Derivative Instruments Total Balances at December 31, 2017 $ (2,385 ) $ — $ (2,385 ) Net unrealized gains (losses) arising during the period 409 — 409 Less: Net realized gains (losses) reclassified to net income — — — Net change during the period 409 — 409 Balances at March 31, 2018 (1,976 ) — (1,976 ) Net unrealized gains (losses) arising during the period (644 ) — (644 ) Less: Net realized gains (losses) reclassified to net income — — — Net change during the period (644 ) — (644 ) Balances at June 30, 2018 $ (2,620 ) $ — $ (2,620 )

SEGMENTS (Tables)

SEGMENTS (Tables)	6 Months Ended
	Jun. 30, 2019
Segment Reporting [Abstract]
Reportable Segment Information	Reportable segment information is as follows (in thousands): Three Months Ended June 30, 2019 Commercial Diversified Final Mile Corporate and Consolidated Net sales External customers $ 400,401 $ 90,835 $ 134,817 $ — $ 626,053 Intersegment sales 463 6,191 — (6,654 ) — Total net sales $ 400,864 $ 97,026 $ 134,817 $ (6,654 ) $ 626,053 Income (loss) from operations $ 39,918 $ 8,911 $ 9,221 $ (10,512 ) $ 47,538 Assets $ 358,880 $ 337,197 $ 496,733 $ 182,019 $ 1,374,829 Three Months Ended June 30, 2018 Commercial Diversified Final Mile Corporate and Consolidated Net sales External customers $ 402,484 $ 88,997 $ 121,209 $ — $ 612,690 Intersegment sales 23 5,088 — (5,111 ) — Total net sales $ 402,507 $ 94,085 $ 121,209 $ (5,111 ) $ 612,690 Income (loss) from operations $ 40,784 $ 4,395 $ 10,258 $ (9,396 ) $ 46,041 Assets $ 356,309 $ 353,757 $ 474,121 $ 184,944 $ 1,369,131 Six Months Ended June 30, 2019 Commercial Diversified Final Mile Corporate and Consolidated Net sales External customers $ 740,546 $ 183,015 $ 235,666 $ — $ 1,159,227 Intersegment sales 1,363 13,659 — (15,022 ) — Total net sales $ 741,909 $ 196,674 $ 235,666 $ (15,022 ) $ 1,159,227 Income (loss) from operations $ 66,239 $ 16,955 $ 11,090 $ (21,548 ) $ 72,736 Assets $ 358,880 $ 337,197 $ 496,733 $ 182,019 $ 1,374,829 Six Months Ended June 30, 2018 Commercial Diversified Final Mile Corporate and Consolidated Net sales External customers $ 729,881 $ 177,460 $ 196,668 $ — $ 1,104,009 Intersegment sales 48 11,828 — (11,876 ) — Total net sales $ 729,929 $ 189,288 $ 196,668 $ (11,876 ) $ 1,104,009 Income (loss) from operations $ 70,265 $ 9,423 $ 10,867 $ (18,859 ) $ 71,696 Assets $ 356,309 $ 353,757 $ 474,121 $ 184,944 $ 1,369,131
Major Product Categories and Percentage of Consolidated Net Sales	The following table sets forth the major product categories and their percentage of consolidated net sales (dollars in thousands): Three Months Ended June 30, 2019 Commercial Diversified Final Mile Eliminations Consolidated New trailers $ 385,842 $ 49,325 $ — $ — $ 435,167 69.5 % Used trailers 13 739 — — 752 0.1 % Components, parts and service 10,622 29,007 4,447 (6,575 ) 37,501 6.0 % Equipment and other 4,387 17,955 130,370 (79 ) 152,633 24.4 % Total net sales $ 400,864 $ 97,026 $ 134,817 $ (6,654 ) $ 626,053 100.0 % Three Months Ended June 30, 2018 Commercial Diversified Final Mile Eliminations Consolidated New trailers $ 385,131 $ 37,602 $ — $ — $ 422,733 69.0 % Used trailers 2,499 628 — — 3,127 0.5 % Components, parts and service 9,042 31,926 2,623 (5,091 ) 38,500 6.3 % Equipment and other 5,835 23,929 118,586 (20 ) 148,330 24.2 % Total net sales $ 402,507 $ 94,085 $ 121,209 $ (5,111 ) $ 612,690 100.0 % Six Months Ended June 30, 2019 Commercial Diversified Final Mile Eliminations Consolidated New trailers $ 711,661 $ 95,124 $ — $ — $ 806,785 69.6 % Used trailers 150 1,326 — — 1,476 0.1 % Components, parts and service 20,955 64,891 7,863 (14,495 ) 79,214 6.8 % Equipment and other 9,143 35,333 227,803 (527 ) 271,752 23.4 % Total net sales $ 741,909 $ 196,674 $ 235,666 $ (15,022 ) $ 1,159,227 100.0 % Six Months Ended June 30, 2018 Commercial Diversified Final Mile Eliminations Consolidated New trailers $ 695,449 $ 71,441 $ — $ — $ 766,890 69.5 % Used trailers 6,906 1,714 — — 8,620 0.8 % Components, parts and service 17,690 65,894 5,036 (11,853 ) 76,767 7.0 % Equipment and other 9,884 50,239 191,632 (23 ) 251,732 7.2 % Total net sales $ 729,929 $ 189,288 $ 196,668 $ (11,876 ) $ 1,104,009 100.0 %

NEW ACCOUNTING PRONOUNCEMENTS_2

NEW ACCOUNTING PRONOUNCEMENTS (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Jan. 01, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ROU assets	$ 12,562
Lease liabilities	12,637
Operating and Finance Lease, Liability, Payments, Due	$ 15,137
Accounting Standards Update 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
ROU assets		$ 9,900
Lease liabilities		$ 9,900

REVENUE RECOGNITION (Details)

REVENUE RECOGNITION (Details)	6 Months Ended
	Jun. 30, 2019performance_obligation
Revenue from Contract with Customer [Abstract]
Number of separate and distinct performance obligations	3

INVENTORIES (Details)

INVENTORIES (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Inventory Disclosure [Abstract]
Raw materials and components	$ 139,236	$ 115,083
Finished goods	99,351	48,698
Work in progress	18,095	13,119
Aftermarket parts	7,307	6,421
Used trailers	578	1,083
Total inventory	$ 264,567	$ 184,404

PREPAID EXPENSES - Prepaid Expe

PREPAID EXPENSES - Prepaid Expenses and Other Current Assets (Details) - USD ($)	Jun. 30, 2019	Dec. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Restricted Cash	$ 0	$ 0
Chassis converter pool agreements	11,704,000	22,273,000
Assets held for sale	3,009,000	3,039,000
Income tax receivables	205,000	9,872,000
Insurance premiums & maintenance agreements	11,184,000	3,313,000
All other	14,448,000	12,764,000
Prepaid expenses and other current assets	$ 40,550,000	$ 51,261,000

DEBT - Long-term Debt (Details)

DEBT - Long-term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Long-term debt, gross	$ 495,228	$ 510,699
Less: unamortized discount and fees	(5,363)	(5,801)
Less: current portion	0	(1,880)
Long-term debt	489,865	503,018
Term loan credit agreement
Debt Instrument [Line Items]
Long-term debt, gross	170,228	185,699
Senior notes due 2025
Debt Instrument [Line Items]
Long-term debt, gross	$ 325,000	$ 325,000

DEBT - Senior Notes (Details)

DEBT - Senior Notes (Details) - USD ($)	Sep. 26, 2017	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Debt Instrument [Line Items]
Interest expense		$ 7,020,000	$ 7,151,000	$ 14,110,000	$ 14,605,000
Senior notes due 2025
Debt Instrument [Line Items]
Notes issued, aggregate principal amount	$ 325,000,000
Notes issued, interest rate	5.50%
Proceeds from issuance of senior long-term debt	$ 318,900,000
Interest expense		$ 4,600,000	$ 4,600,000	$ 9,200,000	$ 9,200,000

DEBT - Revolving Credit (Detail

DEBT - Revolving Credit (Details)	Dec. 21, 2018USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)
Debt Instrument [Line Items]
Liquidity position to meet future obligations, amount		$ 307,400,000	$ 287,700,000
Revolving Credit Agreement
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 175,000,000
Line of credit facility accordion feature increase limit	$ 275,000,000
Line of credit facility, unused capacity, commitment fee percentage	0.20%
Fixed charge coverage ratio	1
Line of credit facility, excess availability, commitment percentage, threshold	10.00%
Revolving Credit Agreement | London Interbank Offered Rate (LIBOR) | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	1.25%
Revolving Credit Agreement | London Interbank Offered Rate (LIBOR) | Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	1.75%
Revolving Credit Agreement | Base Rate | Minimum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	0.25%
Revolving Credit Agreement | Base Rate | Maximum
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate	0.75%
Letter of Credit
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 15,000,000
Bridge Loan
Debt Instrument [Line Items]
Line of credit facility, maximum borrowing capacity	$ 17,500,000

DEBT - Term Loan Credit Agreeme

DEBT - Term Loan Credit Agreement (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)	Jun. 30, 2019USD ($)	Jun. 30, 2018USD ($)	Nov. 17, 2017USD ($)	May 31, 2012USD ($)
Debt Instrument [Line Items]
Interest paid	$ 2,200,000	$ 2,000,000	$ 4,400,000	$ 3,900,000
Line of credit facility, periodic payment, principal	15,000,000	500,000	15,500,000	900,000
Loss on debt extinguishment	100,000		53,000	174,000
Amortization of debt issuance costs and discounts	100,000	$ 100,000	100,000	$ 0
Term Loan Credit Agreement
Debt Instrument [Line Items]
Long-term line of credit	$ 170,200,000		$ 170,200,000
Term Loan Credit Agreement | Senior Secured Credit Facility
Debt Instrument [Line Items]
Long-term line of credit					$ 188,000,000	$ 188,000,000
Line of credit facility accordion feature increase limit						$ 75,000,000
Debt instrument, covenant, secured leverage ratio						3

FINANCIAL DERIVATIVE INSTRUME_3

FINANCIAL DERIVATIVE INSTRUMENTS - Narrative (Details) $ in Millions	6 Months Ended
	Jun. 30, 2019USD ($)
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative, notional amount	$ 31.4
Pretax deferred losses expected to be reclassified	$ 2

FINANCIAL DERIVATIVE INSTRUME_4

FINANCIAL DERIVATIVE INSTRUMENTS - Fair Value Carrying Amount of Derivative Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Derivative [Line Items]
Derivative liability	$ (1,981)	$ (1,129)
Prepaid expenses and other
Derivative [Line Items]
Derivative liability	32	17
Other accrued liabilities
Derivative [Line Items]
Derivative liability	$ (2,013)	$ (1,146)

FINANCIAL DERIVATIVE INSTRUME_5

FINANCIAL DERIVATIVE INSTRUMENTS - Summary of Gain or Loss Recognized in AOCI (Details) - Commodity swap contracts - Cash Flow Hedging - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain (Loss) Recognized in AOCI on Derivatives (Effective Portion, net of tax)			$ (1,501)
Amount of Gain (Loss) Recognized in AOCI on Derivatives (Effective Portion, net of tax)					$ (765)
Amount of Gain (Loss) Reclassified from AOCI into Earnings	$ (478)	$ 0	$ (646)	$ 0

LEASES - Narrative (Details)

LEASES - Narrative (Details)	Jun. 30, 2019
Minimum
Lessee, Lease, Description [Line Items]
Renewal term	1 year
Maximum
Lessee, Lease, Description [Line Items]
Renewal term	5 years

LEASES - Leased Assets and Liab

LEASES - Leased Assets and Liabilities Included Within the Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Right-of-Use Assets
Operating	$ 12,562
Finance	3,017
Total Leased ROU Assets	15,579
Current
Operating	3,870	$ 0
Finance	317
Noncurrent
Operating	8,767
Finance	544
Total lease liabilities	$ 13,498

LEASES - Lease Cost (Details)

LEASES - Lease Cost (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2019
Leases [Abstract]
Operating lease cost	$ 1,126	$ 2,198
Finance lease cost
Amortization of ROU leased assets	36	72
Interest on lease liabilities	17	35
Net lease cost	$ 1,179	$ 2,305

LEASES - Maturity of Lease Liab

LEASES - Maturity of Lease Liabilities (Details) $ in Thousands	Jun. 30, 2019USD ($)
Operating Leases
2019 (remainder)	$ 2,153
2020	3,621
2021	3,032
2022	1,797
2023	1,594
Thereafter	2,008
Total lease payments	14,205
Less: interest	1,568
Present value of lease payments	12,637
Finance Leases
2019 (remainder)	180
2020	361
2021	361
2022	30
2023	0
Thereafter	0
Total lease payments	932
Less: interest	71
Present value of lease payments	861
Total
2019 (remainder)	2,333
2020	3,982
2021	3,393
2022	1,827
2023	1,594
Thereafter	2,008
Total lease payments	$ 15,137

LEASES - Lease Terms and Discou

LEASES - Lease Terms and Discount Rates (Details)	Jun. 30, 2019
Weighted average remaining lease term (years)
Operating leases	4 years 7 months 6 days
Finance leases	2 years 7 months 6 days
Weighted average discount rate
Operating leases	5.16%
Finance leases	6.16%

LEASES - Lease Costs Included i

LEASES - Lease Costs Included in the Condensed Consolidated Statements of Cash Flows (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2019USD ($)
Cash paid for amounts included in the measurement of lease liabilities
Operating cash flows from operating leases	$ 2,124
Operating cash flows from finance leases	35
Financing cash flows from finance leases	$ 152

OTHER ACCRUED LIABILITIES - Oth

OTHER ACCRUED LIABILITIES - Other Accrued Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2017
Payables and Accruals [Abstract]
Warranty	$ 23,509	$ 22,247	$ 21,041	$ 20,132
Chassis converter pool agreements	11,704	22,273
Payroll and related taxes	21,530	16,096
Customer deposits	28,945	23,483
Self-insurance	12,772	9,890
Accrued interest	4,705	4,779
Operating lease obligations	3,870	0
Accrued taxes	2,320	7,653
All other	11,001	9,963
Other accrued liabilities	$ 120,356	$ 116,384

OTHER ACCRUED LIABILITIES - Cha

OTHER ACCRUED LIABILITIES - Changes in Product Warranty Accrual (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Product Warranty Accrual [Roll Forward]
Balance at beginning of period	$ 22,247	$ 20,132
Provision for warranties issued in current year	4,067	3,580
Payments	(2,805)	(2,671)
Balance at end of period	$ 23,509	$ 21,041

OTHER ACCRUED LIABILITIES - Nar

OTHER ACCRUED LIABILITIES - Narrative (Details)	6 Months Ended
	Jun. 30, 2019
Minimum
Accrued Liabilities [Line Items]
Warrant coverage period	1 year
Maximum
Accrued Liabilities [Line Items]
Warrant coverage period	5 years
DuraPlate Trailer Panels
Accrued Liabilities [Line Items]
Warrant coverage period	10 years

FAIR VALUE MEASUREMENTS - Fair

FAIR VALUE MEASUREMENTS - Fair Value Measurements and Fair Value Hierarchy for Assets and Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Life-insurance contracts	$ 15,475	$ 15,333
Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mutual funds	6,356	4,140
Commodity swap contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability	(1,981)	(1,129)
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Life-insurance contracts	0	0
Quoted Prices in Active Markets for Identical Assets (Level 1) | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mutual funds	6,356	4,140
Quoted Prices in Active Markets for Identical Assets (Level 1) | Commodity swap contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability	0	0
Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Life-insurance contracts	15,475	15,333
Significant Other Observable Inputs (Level 2) | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mutual funds	0	0
Significant Other Observable Inputs (Level 2) | Commodity swap contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability	(1,981)	(1,129)
Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Life-insurance contracts	0	0
Significant Unobservable Inputs (Level 3) | Mutual funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Mutual funds	0	0
Significant Unobservable Inputs (Level 3) | Commodity swap contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Liability	$ 0	$ 0

FAIR VALUE MEASUREMENTS - Finan

FAIR VALUE MEASUREMENTS - Financial Assets and Liabilities Accounted For at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	$ 489,901	$ 504,898
Senior notes due 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	320,252	319,941
Term loan credit agreement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	169,649	184,957
Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	0	0
Level 1 | Senior notes due 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	0	0
Level 1 | Term loan credit agreement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	0	0
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	478,553	460,673
Level 2 | Senior notes due 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	308,750	278,688
Level 2 | Term loan credit agreement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	169,803	181,985
Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	0	0
Level 3 | Senior notes due 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	0	0
Level 3 | Term loan credit agreement
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Long-term debt, fair value	$ 0	$ 0

CONTINGENCIES (Details)

CONTINGENCIES (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Loss Contingencies [Line Items]
Outstanding chassis converter pool	$ 11,704	$ 22,273
Chassis Converter Pool Agreements
Loss Contingencies [Line Items]
Consigned inventory belonging to the manufacturer	$ 4,700

NET INCOME PER SHARE - Basic an

NET INCOME PER SHARE - Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Basic net income per share:
Net income applicable to common stockholders	$ 30,960	$ 31,902	$ 45,740	$ 53,174
Weighted average common shares outstanding (in shares)	55,197	57,879	55,233	57,836
Basic net income per share (in usd per share)	$ 0.56	$ 0.55	$ 0.83	$ 0.92
Diluted net income per share:
Net income applicable to common stockholders	$ 30,960	$ 31,902	$ 45,740	$ 53,174
Dilutive shares from assumed conversion of convertible senior notes (in shares)	0	435	0	1,073
Dilutive stock options and restricted stock (in shares)	471	960	486	1,114
Diluted weighted average common shares outstanding (in shares)	55,668	59,274	55,719	60,023
Diluted net income per share (in usd per share)	$ 0.56	$ 0.54	$ 0.82	$ 0.89

NET INCOME PER SHARE - Narrativ

NET INCOME PER SHARE - Narrative (Details)	Mar. 31, 2018$ / shares
Convertible Debt
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Debt instrument, convertible, conversion price (in usd per share)	$ 11.70

STOCK-BASED COMPENSATION (Detai

STOCK-BASED COMPENSATION (Details) $ in Millions	Jun. 30, 2019USD ($)
Share-based Compensation [Abstract]
Compensation costs related to restricted stock units and performance units not yet recognized	$ 20.2

STOCKHOLDERS' EQUITY - Narrativ

STOCKHOLDERS' EQUITY - Narrative (Details) - USD ($)	Nov. 14, 2018	Jun. 30, 2019	Dec. 31, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stock repurchase program, period in force	3 years
Stock repurchase program, authorized amount	$ 100,000,000
Stock repurchase program, remaining authorized repurchase amount		$ 88,800,000
Common stock, shares authorized (in shares)		200,000,000	200,000,000
Common stock, par value (in usd per share)		$ 0.01	$ 0.01
Preferred Class A
Accumulated Other Comprehensive Income (Loss) [Line Items]
Preferred stock, shares authorized (in shares)		25,000,000

STOCKHOLDERS' EQUITY - Changes

STOCKHOLDERS' EQUITY - Changes in AOCI by Component (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2018	Mar. 31, 2018
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	$ 483,606	$ 473,849	$ 513,272	$ 506,063
Net unrealized gains (losses) arising during the period	(394)	(641)	(644)	409
Less: Net realized gains (losses) reclassified to net income	(357)	(125)	0	0
Net change during the period	(37)	(516)	(644)	409
Balance at end of period	501,565	483,606	499,215	513,272
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(3,859)	(3,343)	(1,976)	(2,385)
Balance at end of period	(3,896)	(3,859)	(2,620)	(1,976)
Foreign Currency Translation and Other
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(2,280)	(2,578)	(1,976)	(2,385)
Net unrealized gains (losses) arising during the period	(115)	298	(644)	409
Less: Net realized gains (losses) reclassified to net income	0	0	0	0
Net change during the period	(115)	298	(644)	409
Balance at end of period	(2,395)	(2,280)	(2,620)	(1,976)
Other comprehensive income (loss) before reclassifications, tax		308
Reclassification from AOCI, current period, tax	93		121	42
Derivative Instruments
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Balance at beginning of period	(1,579)	(765)	0	0
Net unrealized gains (losses) arising during the period	(279)	(939)	0	0
Less: Net realized gains (losses) reclassified to net income	(357)	(125)	0	0
Net change during the period	78	(814)	0	0
Balance at end of period	$ (1,501)	$ (1,579)	$ 0	$ 0

INCOME TAXES (Details)

INCOME TAXES (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income tax expense	$ 10,639	$ 11,025	$ 13,798	$ 15,870
Effective tax rate	25.60%	25.70%	23.20%	23.00%
Federal tax rate			21.00%

SEGMENTS - Narrative (Details)

SEGMENTS - Narrative (Details)	6 Months Ended
	Jun. 30, 2019segmentsbusiness_unit
Segment Reporting Information [Line Items]
Number of segments | segments	3
Diversified Products
Segment Reporting Information [Line Items]
Number of strategic business units | business_unit	3

SEGMENTS - Reportable Segment I

SEGMENTS - Reportable Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018	Dec. 31, 2018
Net sales
Total net sales	$ 626,053	$ 612,690	$ 1,159,227	$ 1,104,009
Income (loss) from operations	47,538	46,041	72,736	71,696
Assets	1,374,829	1,369,131	1,374,829	1,369,131	$ 1,304,393
Commercial Trailer Products
Net sales
Total net sales	400,401	402,484	740,546	729,881
Diversified Products
Net sales
Total net sales	90,835	88,997	183,015	177,460
Final Mile Products
Net sales
Total net sales	134,817	121,209	235,666	196,668
Corporate and Eliminations
Net sales
Total net sales	(6,654)	(5,111)	(15,022)	(11,876)
Income (loss) from operations	(10,512)	(9,396)	(21,548)	(18,859)
Assets	182,019	184,944	182,019	184,944
Corporate and Eliminations | Commercial Trailer Products
Net sales
Total net sales	463	23	1,363	48
Corporate and Eliminations | Diversified Products
Net sales
Total net sales	6,191	5,088	13,659	11,828
Corporate and Eliminations | Final Mile Products
Net sales
Total net sales	0	0	0	0
Operating Segments | Commercial Trailer Products
Net sales
Total net sales	400,864	402,507	741,909	729,929
Income (loss) from operations	39,918	40,784	66,239	70,265
Assets	358,880	356,309	358,880	356,309
Operating Segments | Diversified Products
Net sales
Total net sales	97,026	94,085	196,674	189,288
Income (loss) from operations	8,911	4,395	16,955	9,423
Assets	337,197	353,757	337,197	353,757
Operating Segments | Final Mile Products
Net sales
Total net sales	134,817	121,209	235,666	196,668
Income (loss) from operations	9,221	10,258	11,090	10,867
Assets	$ 496,733	$ 474,121	$ 496,733	$ 474,121

SEGMENTS - Major Product Catego

SEGMENTS - Major Product Categories and Percentage of Consolidated Net Sales (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Product Information [Line Items]
Net sales	$ 626,053	$ 612,690	$ 1,159,227	$ 1,104,009
Sales Revenue, Net
Product Information [Line Items]
Percentage of consolidated net sales	100.00%	100.00%	100.00%	100.00%
Eliminations
Product Information [Line Items]
Net sales	$ (6,654)	$ (5,111)	$ (15,022)	$ (11,876)
Commercial Trailer Products
Product Information [Line Items]
Net sales	400,401	402,484	740,546	729,881
Commercial Trailer Products | Operating Segments
Product Information [Line Items]
Net sales	400,864	402,507	741,909	729,929
Commercial Trailer Products | Eliminations
Product Information [Line Items]
Net sales	463	23	1,363	48
Diversified Products
Product Information [Line Items]
Net sales	90,835	88,997	183,015	177,460
Diversified Products | Operating Segments
Product Information [Line Items]
Net sales	97,026	94,085	196,674	189,288
Diversified Products | Eliminations
Product Information [Line Items]
Net sales	6,191	5,088	13,659	11,828
Final Mile Products
Product Information [Line Items]
Net sales	134,817	121,209	235,666	196,668
Final Mile Products | Operating Segments
Product Information [Line Items]
Net sales	134,817	121,209	235,666	196,668
Final Mile Products | Eliminations
Product Information [Line Items]
Net sales	0	0	0	0
New trailers
Product Information [Line Items]
Net sales	$ 435,167	$ 422,733	$ 806,785	$ 766,890
New trailers | Sales Revenue, Net
Product Information [Line Items]
Percentage of consolidated net sales	69.50%	69.00%	69.60%	69.50%
New trailers | Eliminations
Product Information [Line Items]
Net sales	$ 0	$ 0	$ 0	$ 0
New trailers | Commercial Trailer Products | Operating Segments
Product Information [Line Items]
Net sales	385,842	385,131	711,661	695,449
New trailers | Diversified Products | Operating Segments
Product Information [Line Items]
Net sales	49,325	37,602	95,124	71,441
New trailers | Final Mile Products | Operating Segments
Product Information [Line Items]
Net sales	0	0	0	0
Used trailers
Product Information [Line Items]
Net sales	$ 752	$ 3,127	$ 1,476	$ 8,620
Used trailers | Sales Revenue, Net
Product Information [Line Items]
Percentage of consolidated net sales	0.10%	0.50%	0.10%	0.80%
Used trailers | Eliminations
Product Information [Line Items]
Net sales	$ 0	$ 0	$ 0	$ 0
Used trailers | Commercial Trailer Products | Operating Segments
Product Information [Line Items]
Net sales	13	2,499	150	6,906
Used trailers | Diversified Products | Operating Segments
Product Information [Line Items]
Net sales	739	628	1,326	1,714
Used trailers | Final Mile Products | Operating Segments
Product Information [Line Items]
Net sales	0	0	0	0
Components, parts and service
Product Information [Line Items]
Net sales	$ 37,501	$ 38,500	$ 79,214	$ 76,767
Components, parts and service | Sales Revenue, Net
Product Information [Line Items]
Percentage of consolidated net sales	6.00%	6.30%	6.80%	7.00%
Components, parts and service | Eliminations
Product Information [Line Items]
Net sales	$ (6,575)	$ (5,091)	$ (14,495)	$ (11,853)
Components, parts and service | Commercial Trailer Products | Operating Segments
Product Information [Line Items]
Net sales	10,622	9,042	20,955	17,690
Components, parts and service | Diversified Products | Operating Segments
Product Information [Line Items]
Net sales	29,007	31,926	64,891	65,894
Components, parts and service | Final Mile Products | Operating Segments
Product Information [Line Items]
Net sales	4,447	2,623	7,863	5,036
Equipment and other
Product Information [Line Items]
Net sales	$ 152,633	$ 148,330	$ 271,752	$ 251,732
Equipment and other | Sales Revenue, Net
Product Information [Line Items]
Percentage of consolidated net sales	24.40%	24.20%	23.40%	7.20%
Equipment and other | Eliminations
Product Information [Line Items]
Net sales	$ (79)	$ (20)	$ (527)	$ (23)
Equipment and other | Commercial Trailer Products | Operating Segments
Product Information [Line Items]
Net sales	4,387	5,835	9,143	9,884
Equipment and other | Diversified Products | Operating Segments
Product Information [Line Items]
Net sales	17,955	23,929	35,333	50,239
Equipment and other | Final Mile Products | Operating Segments
Product Information [Line Items]
Net sales	$ 130,370	$ 118,586	$ 227,803	$ 191,632