XML 22 R77.htm IDEA: XBRL DOCUMENT
v3.19.3

Note 12 - Condensed Consolidating Financial Information - Condensed Consolidating Statements of Operations (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Sep. 30, 2019 | Sep. 30, 2018
Total revenues |  | $ 819,568 |  |  | $ 612,196 |  |  | $ 2,492,988 |  | $ 1,835,107 |
Operating |  | 430,202 |  |  |  |  |  | 1,298,348 |  |  |
Selling, general and administrative |  | 116,899 |  |  | 88,054 |  |  | 349,011 |  | 263,678 |
Master lease rent expense |  | 24,665 |  |  | 0 |  |  | 73,058 |  | 0 |
Maintenance and utilities |  | 41,351 |  |  | 32,927 |  |  | 119,158 |  | 89,526 |
Depreciation and amortization |  | 65,092 |  |  | 54,688 |  |  | 200,396 |  | 159,887 |
Corporate expense |  | 21,411 |  |  | 25,055 |  |  | 79,501 |  | 74,975 |
Project development, preopening and writedowns |  | 5,297 |  |  | 18,588 |  |  | 14,243 |  | 27,829 |
Other operating items, net |  | 1,260 |  |  | 265 |  |  | 1,564 |  | 2,196 |
Intercompany expenses |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Total operating costs and expenses |  | 706,177 |  |  | 542,628 |  |  | 2,135,279 |  | 1,574,507 |
Equity in earnings (losses) of subsidiaries |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Operating income (loss) |  | 113,391 |  |  | 69,568 |  |  | 357,709 |  | 260,600 |
Interest expense, net |  | 59,227 |  |  | 52,481 |  |  | 180,868 |  | 140,720 |
Loss on early extinguishments and modifications of debt |  | 242 |  |  | 0 |  |  | 750 |  | 61 |
Other, net |  | 113 |  |  | 16 |  |  | (227) |  | (388) |
Total other expense (income), net |  | 59,582 |  |  | 52,497 |  |  | 181,391 |  | 140,393 |
Income (loss) before income taxes |  | 53,809 |  |  | 17,071 |  |  | 176,318 |  | 120,207 |
Income tax provision |  | (14,404) |  |  | (5,234) |  |  | (42,978) |  | (28,373) |
Net income |  | 39,405 | $ 48,484 | $ 45,451 | 11,837 | $ 38,945 | $ 41,399 | 133,340 |  | 92,181 |
Comprehensive income (loss) |  | 39,948 |  |  | 11,975 |  |  | 134,336 |  | 91,049 |
Operating |  |  |  |  | 323,051 |  |  |  |  | 955,423 |
Impairment of assets |  | 0 |  |  | 0 |  |  | 0 |  | 993 |
Income (loss) from continuing operations, net of tax |  | 39,405 |  |  | 11,837 |  |  | 133,340 |  | 91,834 |
Income from discontinued operations, net of tax |  | 0 |  |  | 0 |  |  | 0 |  | 347 |
Consolidation, Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  | (24,340) |  |  | (24,788) |  |  | (76,443) |  | (76,301) |
Operating |  | 0 |  |  |  |  |  | 0 |  |  |
Selling, general and administrative |  | 0 |  |  | (1) |  |  | 0 |  | (12) |
Master lease rent expense |  | 0 |  |  |  |  |  | 0 |  |  |
Maintenance and utilities |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Depreciation and amortization |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Corporate expense |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Project development, preopening and writedowns |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Other operating items, net |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Intercompany expenses |  | (24,340) |  |  | (24,787) |  |  | (76,443) |  | (76,289) |
Total operating costs and expenses |  | (24,340) |  |  | (24,788) |  |  | (76,443) |  | (76,301) |
Equity in earnings (losses) of subsidiaries |  | (102,192) |  |  | (70,985) |  |  | (327,462) |  | (234,423) |
Operating income (loss) |  | (102,192) |  |  | (70,985) |  |  | (327,462) |  | (234,423) |
Interest expense, net |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Loss on early extinguishments and modifications of debt |  | 0 |  |  |  |  |  | 0 |  | 0 |
Other, net |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Total other expense (income), net |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Income (loss) before income taxes |  | (102,192) |  |  | (70,985) |  |  | (327,462) |  | (234,423) |
Income tax provision |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Net income |  | (102,192) |  |  | (70,985) |  |  | (327,462) |  | (234,423) |
Comprehensive income (loss) |  | (102,735) |  |  | (71,123) |  |  | (328,458) |  | (233,291) |
Operating |  |  |  |  | 0 |  |  |  |  | 0 |
Impairment of assets |  |  |  |  | 0 |  |  |  |  | 0 |
Income (loss) from continuing operations, net of tax |  |  |  |  |  |  |  |  |  | (234,423) |
Income from discontinued operations, net of tax |  |  |  |  |  |  |  |  |  | 0 |
Parent Company [Member] |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  |  | 91,834 |
Parent Company [Member] | Reportable Legal Entities [Member] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  | 19,945 |  |  | 20,168 |  |  | 62,956 |  | 62,295 |
Operating |  | 0 |  |  |  |  |  | 0 |  |  |
Selling, general and administrative |  | 0 |  |  | 4 |  |  | 0 |  | 12 |
Master lease rent expense |  | 0 |  |  |  |  |  | 0 |  |  |
Maintenance and utilities |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Depreciation and amortization |  | 8,630 |  |  | 4,975 |  |  | 23,897 |  | 13,158 |
Corporate expense |  | 20,651 |  |  | 24,212 |  |  | 76,519 |  | 72,712 |
Project development, preopening and writedowns |  | 1,670 |  |  | 12,194 |  |  | 5,768 |  | 16,337 |
Other operating items, net |  | 1,758 |  |  | 10 |  |  | 1,827 |  | 58 |
Intercompany expenses |  | 50 |  |  | 50 |  |  | 152 |  | 152 |
Total operating costs and expenses |  | 32,759 |  |  | 41,445 |  |  | 108,163 |  | 103,422 |
Equity in earnings (losses) of subsidiaries |  | 102,797 |  |  | 71,509 |  |  | 328,190 |  | 235,518 |
Operating income (loss) |  | 89,983 |  |  | 50,232 |  |  | 282,983 |  | 194,391 |
Interest expense, net |  | 57,255 |  |  | 52,185 |  |  | 174,910 |  | 139,858 |
Loss on early extinguishments and modifications of debt |  | 242 |  |  |  |  |  | 750 |  | 61 |
Other, net |  | 129 |  |  | 38 |  |  | 385 |  | 33 |
Total other expense (income), net |  | 57,626 |  |  | 52,223 |  |  | 176,045 |  | 139,952 |
Income (loss) before income taxes |  | 32,357 |  |  | (1,991) |  |  | 106,938 |  | 54,439 |
Income tax provision |  | 7,048 |  |  | 13,828 |  |  | 26,402 |  | 37,742 |
Net income |  | 39,405 |  |  | 11,837 |  |  | 133,340 |  | 92,181 |
Comprehensive income (loss) |  | 39,948 |  |  | 11,975 |  |  | 134,336 |  | 91,049 |
Operating |  |  |  |  | 0 |  |  |  |  | 0 |
Impairment of assets |  |  |  |  | 0 |  |  |  |  | 993 |
Income (loss) from continuing operations, net of tax |  |  |  |  |  |  |  |  |  | 92,181 |
Income from discontinued operations, net of tax |  |  |  |  |  |  |  |  |  | 0 |
Guarantor Subsidiaries [Member] | Reportable Legal Entities [Member] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  | 803,802 |  |  | 596,394 |  |  | 2,442,753 |  | 1,804,925 |
Operating |  | 412,481 |  |  |  |  |  | 1,244,620 |  |  |
Selling, general and administrative |  | 114,322 |  |  | 85,588 |  |  | 341,280 |  | 257,222 |
Master lease rent expense |  | 24,665 |  |  |  |  |  | 73,058 |  |  |
Maintenance and utilities |  | 40,919 |  |  | 32,516 |  |  | 118,135 |  | 88,445 |
Depreciation and amortization |  | 53,018 |  |  | 47,705 |  |  | 166,892 |  | 142,480 |
Corporate expense |  | 38 |  |  | 94 |  |  | 350 |  | 310 |
Project development, preopening and writedowns |  | 1,501 |  |  | 889 |  |  | 2,706 |  | 2,079 |
Other operating items, net |  | (498) |  |  | 255 |  |  | (263) |  | 2,138 |
Intercompany expenses |  | 24,290 |  |  | 24,737 |  |  | 76,291 |  | 76,137 |
Total operating costs and expenses |  | 670,736 |  |  | 497,220 |  |  | 2,023,069 |  | 1,484,472 |
Equity in earnings (losses) of subsidiaries |  | (605) |  |  | (524) |  |  | (728) |  | (1,095) |
Operating income (loss) |  | 132,461 |  |  | 98,650 |  |  | 418,956 |  | 319,358 |
Interest expense, net |  | 350 |  |  | 289 |  |  | 1,110 |  | 843 |
Loss on early extinguishments and modifications of debt |  | 0 |  |  |  |  |  | 0 |  | 0 |
Other, net |  | 0 |  |  | (5) |  |  | (565) |  | (371) |
Total other expense (income), net |  | 350 |  |  | 284 |  |  | 545 |  | 472 |
Income (loss) before income taxes |  | 132,111 |  |  | 98,366 |  |  | 418,411 |  | 318,886 |
Income tax provision |  | (22,800) |  |  | (20,517) |  |  | (72,751) |  | (69,686) |
Net income |  | 109,311 |  |  | 77,849 |  |  | 345,660 |  | 249,200 |
Comprehensive income (loss) |  | 109,854 |  |  | 77,987 |  |  | 346,656 |  | 248,068 |
Operating |  |  |  |  | 305,436 |  |  |  |  | 915,661 |
Impairment of assets |  |  |  |  | 0 |  |  |  |  | 0 |
Income (loss) from continuing operations, net of tax |  |  |  |  |  |  |  |  |  | 249,200 |
Income from discontinued operations, net of tax |  |  |  |  |  |  |  |  |  | 0 |
Subsidiaries [Member] |  |  |  |  |  |  |  |  |  |  |
Net income |  |  |  |  |  |  |  |  |  | 7,503 |
Subsidiaries [Member] | Reportable Legal Entities [Member] |  |  |  |  |  |  |  |  |  |  |
Total revenues | [1] | 0 |  |  | 0 |  |  | 0 |  | 0 |
Operating | [1] | 0 |  |  |  |  |  | 0 |  |  |
Selling, general and administrative | [1] | 0 |  |  | 0 |  |  | 0 |  | 0 |
Master lease rent expense | [1] | 0 |  |  |  |  |  | 0 |  |  |
Maintenance and utilities | [1] | 0 |  |  | 0 |  |  | 0 |  | 0 |
Depreciation and amortization | [1] | 0 |  |  | 0 |  |  | 0 |  | 0 |
Corporate expense | [1] | 0 |  |  | 0 |  |  | 0 |  | 0 |
Project development, preopening and writedowns | [1] | 0 |  |  | 0 |  |  | 0 |  | 0 |
Other operating items, net | [1] | 0 |  |  | 0 |  |  | 0 |  | 0 |
Intercompany expenses | [1] | 0 |  |  | 0 |  |  | 0 |  | 0 |
Total operating costs and expenses | [1] | 0 |  |  | 0 |  |  | 0 |  | 0 |
Equity in earnings (losses) of subsidiaries | [1] | 0 |  |  | 0 |  |  | 0 |  | 0 |
Operating income (loss) | [1] | 0 |  |  | 0 |  |  | 0 |  | 0 |
Interest expense, net | [1] | 0 |  |  | 0 |  |  | 0 |  | 0 |
Loss on early extinguishments and modifications of debt |  | 0 |  |  |  |  |  | 0 | [1] | 0 |
Other, net | [1] | 0 |  |  | 0 |  |  | 0 |  | 0 |
Total other expense (income), net | [1] | 0 |  |  | 0 |  |  | 0 |  | 0 |
Income (loss) before income taxes |  | 0 |  |  | 0 |  |  | 0 | [1] | 0 | [1]
Income tax provision | [1] | 0 |  |  | 0 |  |  | 0 |  | 0 |
Net income | [1] | 0 |  |  | 0 |  |  | 0 |  | 347 |
Comprehensive income (loss) | [1] | 0 |  |  | 0 |  |  | 0 |  | 347 |
Operating | [1] |  |  |  | 0 |  |  |  |  | 0 |
Impairment of assets |  |  |  |  | 0 |  |  |  |  | 0 |
Income (loss) from continuing operations, net of tax |  |  |  |  |  |  |  |  |  | 0 |
Income from discontinued operations, net of tax |  |  |  |  |  |  |  |  |  | 347 |
Non-Guarantor Subsidiaries, 100% Owned [Member] | Reportable Legal Entities [Member] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  | 20,161 |  |  | 20,422 |  |  | 63,722 |  | 44,188 |
Operating |  | 17,721 |  |  |  |  |  | 53,728 |  |  |
Selling, general and administrative |  | 2,577 |  |  | 2,463 |  |  | 7,731 |  | 6,456 |
Master lease rent expense |  | 0 |  |  |  |  |  | 0 |  |  |
Maintenance and utilities |  | 432 |  |  | 411 |  |  | 1,023 |  | 1,081 |
Depreciation and amortization |  | 3,444 |  |  | 2,008 |  |  | 9,607 |  | 4,249 |
Corporate expense |  | 722 |  |  | 749 |  |  | 2,632 |  | 1,953 |
Project development, preopening and writedowns |  | 2,126 |  |  | 5,505 |  |  | 5,769 |  | 9,413 |
Other operating items, net |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Intercompany expenses |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Total operating costs and expenses |  | 27,022 |  |  | 28,751 |  |  | 80,490 |  | 62,914 |
Equity in earnings (losses) of subsidiaries |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Operating income (loss) |  | (6,861) |  |  | (8,329) |  |  | (16,768) |  | (18,726) |
Interest expense, net |  | 1,622 |  |  | 7 |  |  | 4,848 |  | 19 |
Loss on early extinguishments and modifications of debt |  | 0 |  |  |  |  |  | 0 |  | 0 |
Other, net |  | (16) |  |  | (17) |  |  | (47) |  | (50) |
Total other expense (income), net |  | 1,606 |  |  | (10) |  |  | 4,801 |  | (31) |
Income (loss) before income taxes |  | (8,467) |  |  | (8,319) |  |  | (21,569) |  | (18,695) |
Income tax provision |  | 1,348 |  |  | 1,455 |  |  | 3,371 |  | 3,571 |
Net income |  | (7,119) |  |  | (6,864) |  |  | (18,198) |  | (15,124) |
Comprehensive income (loss) |  | (7,119) |  |  | (6,864) |  |  | (18,198) |  | (15,124) |
Operating |  |  |  |  | 17,615 |  |  |  |  | 39,762 |
Impairment of assets |  |  |  |  | 0 |  |  |  |  | 0 |
Income (loss) from continuing operations, net of tax |  |  |  |  |  |  |  |  |  | (15,124) |
Income from discontinued operations, net of tax |  |  |  |  |  |  |  |  |  | 0 |
Non-Guarantor Subsidiaries, Not 100% Owned [Member] | Reportable Legal Entities [Member] |  |  |  |  |  |  |  |  |  |  |
Total revenues |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Operating |  | 0 |  |  |  |  |  | 0 |  |  |
Selling, general and administrative |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Master lease rent expense |  | 0 |  |  |  |  |  | 0 |  |  |
Maintenance and utilities |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Depreciation and amortization |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Corporate expense |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Project development, preopening and writedowns |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Other operating items, net |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Intercompany expenses |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Total operating costs and expenses |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Equity in earnings (losses) of subsidiaries |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Operating income (loss) |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Interest expense, net |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Loss on early extinguishments and modifications of debt |  | 0 |  |  |  |  |  | 0 |  | 0 |
Other, net |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Total other expense (income), net |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Income (loss) before income taxes |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Income tax provision |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Net income |  | 0 |  |  | 0 |  |  | 0 |  | 0 |
Comprehensive income (loss) |  | $ 0 |  |  | 0 |  |  | $ 0 |  | 0 |
Operating |  |  |  |  | 0 |  |  |  |  | 0 |
Impairment of assets |  |  |  |  | $ 0 |  |  |  |  | 0 |
Income (loss) from continuing operations, net of tax |  |  |  |  |  |  |  |  |  | 0 |
Income from discontinued operations, net of tax |  |  |  |  |  |  |  |  |  | $ 0 |
[1] | Subsidiary is a 100% owned guarantor of the 6.375% Notes and 6.875% Notes and is a 100% owned non-guarantor of the 6.000% Notes.

X
- Definition Amount of expense during the period by corporate. + References No definition available. + Details
Name: | byd_CorporateExpense
Namespace Prefix: | byd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Subsidiary earnings portion attributable to equity. + References No definition available. + Details
Name: | byd_EquityInEarningsOfSubsidiaries
Namespace Prefix: | byd_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of intercompany expense. + References No definition available. + Details
Name: | byd_IntercompanyExpense
Namespace Prefix: | byd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of expense during the period for maintenance and utilities. + References No definition available. + Details
Name: | byd_MaintenanceAndUtilitiesExpense
Namespace Prefix: | byd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of expense for the Master Lease rent. + References No definition available. + Details
Name: | byd_MasterLeaseRentExpense
Namespace Prefix: | byd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of expense for Project development, preopening, and writedowns. + References No definition available. + Details
Name: | byd_ProjectDevelopmentPreopeningAndWritedownsExpense
Namespace Prefix: | byd_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228 + Details
Name: | us-gaap_AssetImpairmentCharges
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118930883&loc=d3e557-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580 + Details
Name: | us-gaap_ComprehensiveIncomeNetOfTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Total costs of sales and operating expenses for the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
Name: | us-gaap_CostsAndExpenses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
Name: | us-gaap_DepreciationAndAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=117329964&loc=d3e12355-112629 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=117329964&loc=d3e12317-112629 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
Name: | us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount after tax of income (loss) from continuing operations attributable to the parent. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4613673-111683 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.13) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_IncomeLossFromContinuingOperations
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 20 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=68072869&loc=d3e41242-110953 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(10)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(8)) -URI http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 250 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=109234566&loc=d3e22694-107794 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(15)) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 + Details
Name: | us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109222160&loc=d3e957-107759 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3A -URI http://asc.fasb.org/extlink&oid=109222160&loc=SL51721523-107759 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 3B -URI http://asc.fasb.org/extlink&oid=109222160&loc=SL51721525-107759 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109222650&loc=d3e1361-107760 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5C -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721675-107760 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 50 -Paragraph 5B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721673-107760 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569616-111683 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 205 -SubTopic 20 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109222160&loc=d3e1012-107759 + Details
Name: | us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 20 -Section 45 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109238882&loc=d3e38679-109324 + Details
Name: | us-gaap_IncomeTaxExpenseBenefit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The net amount of nonoperating interest income (expense). + References No definition available. + Details
Name: | us-gaap_InterestIncomeExpenseNonoperatingNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(22)) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(18)) -URI http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(20)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_NetIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
Name: | us-gaap_NonoperatingIncomeExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Excludes Selling, General and Administrative Expense. + References No definition available. + Details
Name: | us-gaap_OperatingCostsAndExpenses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Includes selling, general and administrative expense. + References No definition available. + Details
Name: | us-gaap_OperatingExpenses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The net result for the period of deducting operating expenses from operating revenues. + References No definition available. + Details
Name: | us-gaap_OperatingIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The total amount of other operating cost and expense items that are associated with the entity's normal revenue producing operation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.3) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
Name: | us-gaap_OtherCostAndExpenseOperating
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of income (expense) related to nonoperating activities, classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.9) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
Name: | us-gaap_OtherNonoperatingIncomeExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045 + Details
Name: | us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 330 -SubTopic 10 -Section 30 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=68048583&loc=d3e3636-108311 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 + Details
Name: | us-gaap_SellingGeneralAndAdministrativeExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | srt_ConsolidationItemsAxis=srt_ConsolidationEliminationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_ParentCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidationItemsAxis=srt_ReportableLegalEntitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_GuarantorSubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_SubsidiariesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=byd_NonguarantorSubsidiaries100OwnedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=byd_NonguarantorSubsidiariesNot100OwnedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |