SEGMENT INFORMATION The Company has two reportable segments, Manufacturing and Distribution, which are based on its method of internal reporting, which segregates its businesses based on the way in which its chief operating decision maker allocates resources, evaluates financial results, and determines compensation. A description of the Companys reportable segments is as follows: Manufacturing  This segment includes the following products: laminated products that are utilized to produce furniture, shelving, walls, countertops and cabinet products; cabinet doors; fiberglass bath fixtures and tile systems; hardwood furniture; vinyl printing; decorative vinyl and paper laminated panels; solid surface, granite, and quartz countertop fabrication; RV painting; fabricated aluminum products; fiberglass and plastic components; fiberglass bath fixtures and tile systems; softwoods lumber; custom cabinetry; polymer-based flooring; electrical systems components including instrument and dash panels; wrapped vinyl, paper and hardwood profile mouldings; interior passage doors; air handling products; slide-out trim and fascia; thermoformed shower surrounds; specialty bath and closet building products; fiberglass and plastic helm systems and components products; wiring and wire harnesses; boat covers, towers, tops and frames; marine hardware; aluminum fuel tanks; CNC molds and composite parts; slotwall panels and components; and other products. Distribution  The Company distributes pre-finished wall and ceiling panels; drywall and drywall finishing products; electronics and audio systems components; appliances; wiring, electrical and plumbing products; fiber reinforced polyester products; cement siding; raw and processed lumber; interior passage doors; roofing products; laminate and ceramic flooring; tile; shower doors; furniture; fireplaces and surrounds; interior and exterior lighting products; and other miscellaneous products in addition to providing transportation and logistics services. The accounting policies of the segments are the same as those described in Note 1, except that segment data includes intersegment sales. Assets are identified to the segments except for cash, prepaid expenses, land and buildings, and certain deferred assets, which are identified with the corporate division. The corporate division charges rents to the segments for use of the land and buildings based upon estimated market rates. The Company accounts for intersegment sales similar to third party transactions, which reflect current market prices. The Company also records certain income from purchase incentive agreements at the corporate division. The Company evaluates the performance of its segments and allocates resources to them based on a variety of indicators including but not limited to sales and operating income as presented in the tables below. The tables below present information that is provided to the chief operating decision maker of the Company as of December 31, 2019 and 2018 and for the years ended December 31, 2019 , 2018 and 2017 (in thousands): 2019 Manufacturing Distribution Total Net outside sales $ 1,642,263 $ 694,819 $ 2,337,082 Intersegment sales 31,223 4,340 35,563 Total sales 1,673,486 699,159 2,372,645 Operating income 174,913 38,953 213,866 Total assets 990,692 304,230 1,294,922 Capital expenditures 25,291 1,973 27,264 Depreciation and amortization 52,036 7,534 59,570 2018 Manufacturing Distribution Total Net outside sales $ 1,745,467 $ 517,594 $ 2,263,061 Intersegment sales 33,581 3,641 37,222 Total sales 1,779,048 521,235 2,300,283 Operating income 215,246 31,491 246,737 Total assets 948,557 240,499 1,189,056 Capital expenditures 31,152 1,852 33,004 Depreciation and amortization 44,747 7,613 52,360 2017 Manufacturing Distribution Total Net outside sales $ 1,337,785 $ 297,868 $ 1,635,653 Intersegment sales 30,669 2,579 33,248 Total sales 1,368,454 300,447 1,668,901 Operating income 151,635 18,858 170,493 Capital expenditures 21,204 309 21,513 Depreciation and amortization 27,481 3,521 31,002 A reconciliation of certain line items pertaining to the total reportable segments to the consolidated financial statements as of December 31, 2019 and 2018 and for the years ended December 31, 2019 , 2018 and 2017 is as follows (in thousands): 2019 2018 2017 Net sales: Total sales for reportable segments $ 2,372,645 $ 2,300,283 $ 1,668,901 Elimination of intersegment sales (35,563 ) (37,222 ) (33,248 ) Consolidated net sales $ 2,337,082 $ 2,263,061 $ 1,635,653 Operating income: Operating income for reportable segments $ 213,866 $ 246,737 $ 170,493 Unallocated corporate expenses (23,516 ) (34,109 ) (29,219 ) Amortization (35,908 ) (34,213 ) (19,374 ) Consolidated operating income $ 154,442 $ 178,415 $ 121,900 Total assets: Identifiable assets for reportable segments $ 1,294,922 $ 1,189,056 Corporate assets unallocated to segments 36,681 35,280 Cash and cash equivalents 139,390 6,895 Consolidated total assets $ 1,470,993 $ 1,231,231 Depreciation and amortization: Depreciation and amortization for reportable segments $ 59,570 $ 52,360 $ 31,002 Corporate depreciation and amortization 3,225 2,692 2,539 Consolidated depreciation and amortization $ 62,795 $ 55,052 $ 33,541 Capital expenditures: Capital expenditures for reportable segments $ 27,264 $ 33,004 $ 21,513 Corporate capital expenditures 397 1,482 984 Consolidated capital expenditures $ 27,661 $ 34,486 $ 22,497 Amortization expense related to intangible assets in the Manufacturing segment for the years ended December 31, 2019 , 2018 and 2017 was $29.5 million , $ 27.4 million and $ 16.2 million , respectively. Intangible assets amortization expense in the Distribution segment was $ 6.4 million , $ 6.8 million and $ 3.1 million in 2019 , 2018 and 2017, respectively. Unallocated corporate expenses include corporate general and administrative expenses comprised of wages, insurance, taxes, supplies, travel and entertainment, professional fees and other. Major Customers One RV customer accounted for approximately 14% and 12% of the trade receivables balance at December 31, 2019 and 2018, respectively. In addition, a second RV customer accounted for approximately 13% of the trade receivables balance at December 31, 2018 . One RV customer accounted for approximately 23% , 29% and 32% of consolidated net sales in 2019, 2018 and 2017, respectively. In addition, a second RV customer accounted for approximately 17% , 20% and 25% of consolidated net sales in 2019 , 2018 and 2017, respectively.