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Segment Information - Summary of Reportable Operating Segment (Details) - USD ($) | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Revenues: |  |  |  |
Total consolidated revenues | $ 2,702,720,000 | $ 2,470,849,000 | $ 7,705,939,000 | $ 7,377,372,000
Segment income (loss): |  |  |  |
Segment income (loss) | 65,196,000 | 48,137,000 | 215,484,000 | 118,972,000
Interest expense, other, net | (13,013,000) | (13,313,000) | (39,494,000) | (40,144,000)
Other income (expense), net | (5,000) | 0 | 90,000 | 107,000
Income (loss) from continuing operations before taxes | 40,540,000 | 22,632,000 | 138,698,000 | 44,120,000
Executive transition costs |  | 1,600,000 |  | 1,600,000
Asset impairment charges | 1,124,000 | 0 | 3,076,000 | 13,961,000
Executive transition costs |  | 1,600,000 |  | 1,600,000
Franchised Dealerships Segment |  |  |  |
Revenues: |  |  |  |
Total consolidated revenues | 2,390,503,000 | 2,284,931,000 | 6,852,474,000 | 6,879,783,000
EchoPark Segment |  |  |  |
Revenues: |  |  |  |
Total consolidated revenues | 312,217,000 | 185,918,000 | 853,465,000 | 497,589,000
Operating segments |  |  |  |
Segment income (loss): |  |  |  |
Segment income (loss) | 53,558,000 | 35,945,000 | 178,102,000 | 84,157,000
Operating segments | Franchised Dealerships Segment |  |  |  |
Segment income (loss): |  |  |  |
Segment income (loss) | 51,028,000 | 40,971,000 | 172,884,000 | 130,856,000
Operating segments | Franchised Dealerships Segment | Income (loss) from continuing operations before taxes |  |  |  |
Segment income (loss): |  |  |  |
Gain on disposal |  | 300,000 | 46,700,000 | 38,900,000
Excluded storm-related physical damage and legal costs |  | 1,200,000 |  | 5,800,000
Asset impairment charges | (1,100,000) |  | 3,100,000 | 14,000,000.0
Lease exit charges |  |  |  | (2,200,000)
Operating segments | EchoPark Segment |  |  |  |
Segment income (loss): |  |  |  |
Segment income (loss) | 2,530,000 | (5,026,000) | 5,218,000 | (46,699,000)
Operating segments | EchoPark Segment | Income (loss) from continuing operations before taxes |  |  |  |
Segment income (loss): |  |  |  |
Excluded non-recurring compensation-related charges |  |  | 6,300,000 | 32,500,000
Excluded non-recurring compensation-related charges |  |  | 6,300,000 | 32,500,000
Reconciling items |  |  |  |
Segment income (loss): |  |  |  |
Interest expense, other, net | (13,013,000) | (13,313,000) | (39,494,000) | (40,144,000)
Other income (expense), net | $ (5,000) | $ 0 | $ 90,000 | $ 107,000

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