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Condensed Consolidated Financial Information Condensed Consolidated Balance Sheet (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2015 | Jun. 30, 2014 | Jun. 30, 2015 | Jun. 30, 2014 | Dec. 31, 2014 | Dec. 31, 2013
Asset Impairment Charges | $ 1,039 | $ 1,721 | $ 1,039 | $ 1,721 |  |
Cash and Cash Equivalents, at Carrying Value | 24,225 | 21,295 | 24,225 | 21,295 | $ 40,975 | $ 20,215
Contracts In Transit And Vehicle Receivables Net | 233,888 |  | 233,888 |  | 237,448 |
Accounts, Notes, Loans and Financing Receivable, Net, Current | 144,265 |  | 144,265 |  | 151,330 |
Intercompany accounts receivable current | 0 |  | 0 |  | 0 |
Inventories, net | 1,657,105 |  | 1,657,105 |  | 1,556,705 |
Deferred Tax Assets, Net, Current | 12,031 |  | 12,031 |  | 11,062 |
Prepaid Expense and Other Assets, Current | 27,851 |  | 27,851 |  | 37,699 |
Total current assets | 2,099,365 |  | 2,099,365 |  | 2,035,219 |
Property, Plant and Equipment, Net | 965,363 |  | 965,363 |  | 950,388 |
Goodwill | 887,200 |  | 887,200 |  | 830,377 |
Indefinite-Lived Franchise Rights | 331,811 |  | 331,811 |  | 303,947 |
Investment in Subsidiaries | 0 |  | 0 |  | 0 |
Other Assets, Noncurrent | 19,235 |  | 19,235 |  | 21,561 |
Total assets | 4,302,974 |  | 4,302,974 |  | 4,141,492 |
Floorplan notes payable - credit facility | 1,205,729 |  | 1,205,729 |  | 1,143,246 |
Offset account related to floorplan notes payable - credit facility | (22,466) |  | (22,466) |  | (39,616) |
Floorplan notes payable - manufacturer affiliates | 308,710 |  | 308,710 |  | 307,656 |
FMCC Offset | (23,300) |  | (23,300) |  | (22,500) |
Long-term Debt and Capital Lease Obligations, Current | 76,442 |  | 76,442 |  | 72,630 |
Accounts Payable, Current | 304,361 |  | 304,361 |  | 288,320 |
Intercompany accounts payable current | 0 |  | 0 |  | 0 |
Accrued Liabilities, Current | 161,123 |  | 161,123 |  | 172,463 |
Total current liabilities | 2,010,599 |  | 2,010,599 |  | 1,922,199 |
LONG-TERM DEBT, net of current maturities | 1,041,852 |  | 1,041,852 |  | 1,008,837 |
Derivative Liability, Noncurrent | 29,020 |  | 29,020 |  | 25,311 |
Deferred Income Taxes and Other Liabilities, Noncurrent | 217,352 |  | 217,352 |  | 207,135 |
Stockholders' Equity Attributable to Parent | 1,004,151 |  | 1,004,151 |  | 978,010 |
Intercompany note receivable | 0 |  | 0 |  | 0 |
Stockholders' Equity Attributable to Parent Excluding Intercompany Receivables | 1,004,151 |  | 1,004,151 |  | 978,010 |
Total liabilities and stockholders’ equity | 4,302,974 |  | 4,302,974 |  | 4,141,492 |
Parent Company [Member] |  |  |  |  |  |
Asset Impairment Charges | 0 | 0 | 0 | 0 |  |
Cash and Cash Equivalents, at Carrying Value | 0 | 494 | 0 | 494 | 0 | 0
Contracts In Transit And Vehicle Receivables Net | 0 |  | 0 |  | 0 |
Accounts, Notes, Loans and Financing Receivable, Net, Current | 0 |  | 0 |  | 0 |
Intercompany accounts receivable current | 0 |  | 0 |  | 0 |
Inventories, net | 0 |  | 0 |  | 0 |
Deferred Tax Assets, Net, Current | 331 |  | 331 |  | 196 |
Prepaid Expense and Other Assets, Current | 311 |  | 311 |  | 590 |
Total current assets | 642 |  | 642 |  | 786 |
Property, Plant and Equipment, Net | 0 |  | 0 |  | 0 |
Goodwill | 0 |  | 0 |  | 0 |
Indefinite-Lived Franchise Rights | 0 |  | 0 |  | 0 |
Investment in Subsidiaries | 2,102,908 |  | 2,102,908 |  | 1,964,442 |
Other Assets, Noncurrent | 0 |  | 0 |  | 0 |
Total assets | 2,103,550 |  | 2,103,550 |  | 1,965,228 |
Floorplan notes payable - credit facility | 0 |  | 0 |  | 0 |
Offset account related to floorplan notes payable - credit facility | 0 |  | 0 |  | 0 |
Floorplan notes payable - manufacturer affiliates | 0 |  | 0 |  | 0 |
FMCC Offset | 0 |  | 0 |  | 0 |
Long-term Debt and Capital Lease Obligations, Current | 0 |  | 0 |  | 0 |
Accounts Payable, Current | 0 |  | 0 |  | 0 |
Intercompany accounts payable current | 364,672 |  | 364,672 |  | 295,421 |
Accrued Liabilities, Current | 0 |  | 0 |  | 0 |
Total current liabilities | 364,672 |  | 364,672 |  | 295,421 |
LONG-TERM DEBT, net of current maturities | 631,387 |  | 631,387 |  | 609,812 |
Derivative Liability, Noncurrent | 0 |  | 0 |  | 0 |
Deferred Income Taxes and Other Liabilities, Noncurrent | 0 |  | 0 |  | 0 |
Stockholders' Equity Attributable to Parent | 1,107,491 |  | 1,107,491 |  | 1,059,995 |
Intercompany note receivable | 0 |  | 0 |  | 0 |
Stockholders' Equity Attributable to Parent Excluding Intercompany Receivables | 1,107,491 |  | 1,107,491 |  | 1,059,995 |
Total liabilities and stockholders’ equity | 2,103,550 |  | 2,103,550 |  | 1,965,228 |
Guarantor Subsidiaries [Member] |  |  |  |  |  |
Asset Impairment Charges | 498 | 1,721 | 498 | 1,721 |  |
Cash and Cash Equivalents, at Carrying Value | 4,620 | 3,831 | 4,620 | 3,831 | 25,379 | 4,306
Contracts In Transit And Vehicle Receivables Net | 202,435 |  | 202,435 |  | 218,361 |
Accounts, Notes, Loans and Financing Receivable, Net, Current | 115,817 |  | 115,817 |  | 117,427 |
Intercompany accounts receivable current | 249,576 |  | 249,576 |  | 276,217 |
Inventories, net | 1,438,449 |  | 1,438,449 |  | 1,342,022 |
Deferred Tax Assets, Net, Current | 11,700 |  | 11,700 |  | 10,866 |
Prepaid Expense and Other Assets, Current | 15,356 |  | 15,356 |  | 22,039 |
Total current assets | 2,037,953 |  | 2,037,953 |  | 2,012,311 |
Property, Plant and Equipment, Net | 849,407 |  | 849,407 |  | 839,063 |
Goodwill | 769,163 |  | 769,163 |  | 700,642 |
Indefinite-Lived Franchise Rights | 290,876 |  | 290,876 |  | 257,502 |
Investment in Subsidiaries | 0 |  | 0 |  | 0 |
Other Assets, Noncurrent | 9,120 |  | 9,120 |  | 10,120 |
Total assets | 3,956,519 |  | 3,956,519 |  | 3,819,638 |
Floorplan notes payable - credit facility | 1,204,346 |  | 1,204,346 |  | 1,137,743 |
Offset account related to floorplan notes payable - credit facility | (22,466) |  | (22,466) |  | (39,616) |
Floorplan notes payable - manufacturer affiliates | 219,148 |  | 219,148 |  | 207,329 |
FMCC Offset | (23,300) |  | (23,300) |  | (22,500) |
Long-term Debt and Capital Lease Obligations, Current | 59,379 |  | 59,379 |  | 61,185 |
Accounts Payable, Current | 173,603 |  | 173,603 |  | 176,143 |
Intercompany accounts payable current | 0 |  | 0 |  | 0 |
Accrued Liabilities, Current | 136,583 |  | 136,583 |  | 149,700 |
Total current liabilities | 1,747,293 |  | 1,747,293 |  | 1,669,984 |
LONG-TERM DEBT, net of current maturities | 340,496 |  | 340,496 |  | 347,202 |
Derivative Liability, Noncurrent | 29,020 |  | 29,020 |  | 25,311 |
Deferred Income Taxes and Other Liabilities, Noncurrent | 204,703 |  | 204,703 |  | 193,077 |
Stockholders' Equity Attributable to Parent | 1,999,679 |  | 1,999,679 |  | 1,879,485 |
Intercompany note receivable | (364,672) |  | (364,672) |  | (295,421) |
Stockholders' Equity Attributable to Parent Excluding Intercompany Receivables | 1,635,007 |  | 1,635,007 |  | 1,584,064 |
Total liabilities and stockholders’ equity | 3,956,519 |  | 3,956,519 |  | 3,819,638 |
Non-Guarantor Subsidiaries [Member] |  |  |  |  |  |
Asset Impairment Charges | 541 | 0 | 541 | 0 |  |
Cash and Cash Equivalents, at Carrying Value | 19,605 | 16,970 | 19,605 | 16,970 | 15,596 | $ 15,909
Contracts In Transit And Vehicle Receivables Net | 31,453 |  | 31,453 |  | 19,087 |
Accounts, Notes, Loans and Financing Receivable, Net, Current | 28,448 |  | 28,448 |  | 33,903 |
Intercompany accounts receivable current | 0 |  | 0 |  | 0 |
Inventories, net | 218,656 |  | 218,656 |  | 214,683 |
Deferred Tax Assets, Net, Current | 0 |  | 0 |  | 0 |
Prepaid Expense and Other Assets, Current | 12,184 |  | 12,184 |  | 15,070 |
Total current assets | 310,346 |  | 310,346 |  | 298,339 |
Property, Plant and Equipment, Net | 115,956 |  | 115,956 |  | 111,325 |
Goodwill | 118,037 |  | 118,037 |  | 129,735 |
Indefinite-Lived Franchise Rights | 40,935 |  | 40,935 |  | 46,445 |
Investment in Subsidiaries | 0 |  | 0 |  | 0 |
Other Assets, Noncurrent | 10,115 |  | 10,115 |  | 11,441 |
Total assets | 595,389 |  | 595,389 |  | 597,285 |
Floorplan notes payable - credit facility | 1,383 |  | 1,383 |  | 5,503 |
Offset account related to floorplan notes payable - credit facility | 0 |  | 0 |  | 0 |
Floorplan notes payable - manufacturer affiliates | 89,562 |  | 89,562 |  | 100,327 |
FMCC Offset | 0 |  | 0 |  | 0 |
Long-term Debt and Capital Lease Obligations, Current | 17,063 |  | 17,063 |  | 11,445 |
Accounts Payable, Current | 130,758 |  | 130,758 |  | 112,177 |
Intercompany accounts payable current | 249,576 |  | 249,576 |  | 276,217 |
Accrued Liabilities, Current | 24,540 |  | 24,540 |  | 22,763 |
Total current liabilities | 512,882 |  | 512,882 |  | 528,432 |
LONG-TERM DEBT, net of current maturities | 69,969 |  | 69,969 |  | 51,823 |
Derivative Liability, Noncurrent | 0 |  | 0 |  | 0 |
Deferred Income Taxes and Other Liabilities, Noncurrent | 12,649 |  | 12,649 |  | 14,058 |
Stockholders' Equity Attributable to Parent | (111) |  | (111) |  | 2,972 |
Intercompany note receivable | 0 |  | 0 |  | 0 |
Stockholders' Equity Attributable to Parent Excluding Intercompany Receivables | (111) |  | (111) |  | 2,972 |
Total liabilities and stockholders’ equity | 595,389 |  | 595,389 |  | 597,285 |
Consolidation, Eliminations [Member] |  |  |  |  |  |
Asset Impairment Charges | 0 | $ 0 | 0 | $ 0 |  |
Cash and Cash Equivalents, at Carrying Value | 0 |  | 0 |  | 0 |
Contracts In Transit And Vehicle Receivables Net | 0 |  | 0 |  | 0 |
Accounts, Notes, Loans and Financing Receivable, Net, Current | 0 |  | 0 |  | 0 |
Intercompany accounts receivable current | (249,576) |  | (249,576) |  | (276,217) |
Inventories, net | 0 |  | 0 |  | 0 |
Deferred Tax Assets, Net, Current | 0 |  | 0 |  | 0 |
Prepaid Expense and Other Assets, Current | 0 |  | 0 |  | 0 |
Total current assets | (249,576) |  | (249,576) |  | (276,217) |
Property, Plant and Equipment, Net | 0 |  | 0 |  | 0 |
Goodwill | 0 |  | 0 |  | 0 |
Indefinite-Lived Franchise Rights | 0 |  | 0 |  | 0 |
Investment in Subsidiaries | (2,102,908) |  | (2,102,908) |  | (1,964,442) |
Other Assets, Noncurrent | 0 |  | 0 |  | 0 |
Total assets | (2,352,484) |  | (2,352,484) |  | (2,240,659) |
Floorplan notes payable - credit facility | 0 |  | 0 |  | 0 |
Offset account related to floorplan notes payable - credit facility | 0 |  | 0 |  | 0 |
Floorplan notes payable - manufacturer affiliates | 0 |  | 0 |  | 0 |
FMCC Offset | 0 |  | 0 |  | 0 |
Long-term Debt and Capital Lease Obligations, Current | 0 |  | 0 |  | 0 |
Accounts Payable, Current | 0 |  | 0 |  | 0 |
Intercompany accounts payable current | (614,248) |  | (614,248) |  | (571,638) |
Accrued Liabilities, Current | 0 |  | 0 |  | 0 |
Total current liabilities | (614,248) |  | (614,248) |  | (571,638) |
LONG-TERM DEBT, net of current maturities | 0 |  | 0 |  | 0 |
Derivative Liability, Noncurrent | 0 |  | 0 |  | 0 |
Deferred Income Taxes and Other Liabilities, Noncurrent | 0 |  | 0 |  | 0 |
Stockholders' Equity Attributable to Parent | (2,102,908) |  | (2,102,908) |  | (1,964,442) |
Intercompany note receivable | 364,672 |  | 364,672 |  | 295,421 |
Stockholders' Equity Attributable to Parent Excluding Intercompany Receivables | (1,738,236) |  | (1,738,236) |  | (1,669,021) |
Total liabilities and stockholders’ equity | $ (2,352,484) |  | $ (2,352,484) |  | $ (2,240,659) |

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