Segment Reporting Disclosure [Text Block] | Note 10. Segments While we have determined that each individual store is a reporting unit, we have aggregated our reporting units into three reportable segments based on their economic similarities: Domestic, Import and Luxury. Our Domestic segment is comprised of retail automotive franchises that sell new vehicles manufactured by Chrysler, General Motors and Ford. Our Import segment is comprised of retail automotive franchises that sell new vehicles manufactured primarily by Honda, Toyota, Subaru, Nissan and Volkswagen. Our Luxury segment is comprised of retail automotive franchises that sell new vehicles manufactured primarily by BMW, Mercedes-Benz and Lexus. The franchises in each segment also sell used vehicles, parts and automotive services, and automotive finance and insurance products. Corporate and other revenue and income includes the results of operations of our stand-alone body shop offset by unallocated corporate overhead expenses, such as corporate personnel costs, and certain unallocated reserve and elimination adjustments. Additionally, certain internal corporate expense allocations increase segment income for Corporate and other while decreasing segment income for the other reportable segments. These internal corporate expense allocations are used to increase comparability of our dealerships and reflect the capital burden a stand-alone dealership would experience. Examples of these internal allocations include internal rent expense, internal floor plan financing charges, and internal fees charged to offset employees within our corporate headquarters that perform certain dealership functions. We define our chief operating decision maker (“CODM”) to be certain members of our executive management group. Historical and forecasted operational performance is evaluated on a store-by-store basis and on a consolidated basis by the CODM. We derive the operating results of the segments directly from our internal management reporting system. The accounting policies used to derive segment results are substantially the same as those used to determine our consolidated results, except for the internal allocation within Corporate and other discussed above. Our CODM measures the performance of each operating segment based on several metrics, including earnings from operations, and uses these results, in part, to evaluate the performance of, and to allocate resources to, each of the operating segments. Certain financial information on a segment basis is as follows (in thousands): Three Months Ended Nine Months Ended 2016 2015 2016 2015 Revenues: Domestic $ 888,026 $ 814,216 $ 2,483,637 $ 2,273,068 Import 989,077 894,371 2,788,838 2,509,756 Luxury 392,537 374,558 1,111,215 1,084,051 2,269,640 2,083,145 6,383,690 5,866,875 Corporate and other 327 1,700 2,477 4,095 $ 2,269,967 $ 2,084,845 $ 6,386,167 $ 5,870,970 Segment income*: Domestic $ 32,394 $ 33,240 $ 84,913 $ 91,853 Import 32,832 31,453 86,385 76,665 Luxury 7,423 8,318 21,736 25,764 72,649 73,011 193,034 194,282 Corporate and other 26,794 5,366 81,881 48,327 Depreciation and amortization (12,206 ) (10,531 ) (36,372 ) (30,544 ) Other interest expense (5,647 ) (4,900 ) (16,608 ) (14,700 ) Other expense, net (1,513 ) (307 ) (4,534 ) (1,031 ) Income before income taxes $ 80,077 $ 62,639 $ 217,401 $ 196,334 *Segment income for each of the segments is defined as income before income taxes, depreciation and amortization, other interest expense and other expense, net. Three Months Ended Nine Months Ended 2016 2015 2016 2015 Floor plan interest expense: Domestic $ 6,255 $ 5,441 $ 18,869 $ 15,083 Import 4,661 3,779 13,403 11,227 Luxury 2,720 2,345 8,027 6,715 13,636 11,565 40,299 33,025 Corporate and other (7,450 ) (6,614 ) (21,995 ) (18,770 ) $ 6,186 $ 4,951 $ 18,304 $ 14,255 September 30, 2016 December 31, 2015 Total assets: Domestic $ 1,086,624 $ 985,374 Import 877,961 725,011 Luxury 445,246 475,305 Corporate and other 1,153,775 1,041,609 $ 3,563,606 $ 3,227,299 |