XML 87 R72.htm IDEA: XBRL DOCUMENT v3.22.0.1

Note 10 - Stockholders' Equity and Stock Incentive Plans - Dividends (Details) - $ / shares	Dec. 17, 2019	Sep. 17, 2019	Jun. 07, 2019	Mar. 04, 2019	Dec. 07, 2018
Dividend Declared December 17, 2019 [Member]
Dividends, record date					Dec. 28, 2018
Dividends, payment date					Jan. 15, 2019
Dividends, amount per share (in dollars per share)					$ 0.06
Dividend Declared March 2, 2018 [Member]
Dividends, record date				Mar. 15, 2019
Dividends, payment date				Apr. 15, 2019
Dividends, amount per share (in dollars per share)				$ 0.06
Dividend Declared June 8, 2018 [Member]
Dividends, record date			Jun. 17, 2019
Dividends, payment date			Jul. 15, 2019
Dividends, amount per share (in dollars per share)			$ 0.07
Dividend Declared Sept 14, 2018 [Member]
Dividends, record date		Sep. 27, 2019
Dividends, payment date		Oct. 15, 2019
Dividends, amount per share (in dollars per share)		$ 0.07
Dividend Declared Dec 7, 2018 [Member]
Dividends, record date	Dec. 27, 2019
Dividends, payment date	Jan. 15, 2020
Dividends, amount per share (in dollars per share)	$ 0.07

X

- Definition

Date the declared dividend will be paid, in YYYY-MM-DD format.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4304-108586

+ Details

Name:	us-gaap_DividendPayableDateToBePaidDayMonthAndYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The per share amount of a dividend declared, but not paid, as of the financial reporting date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=123431023&loc=d3e4304-108586

+ Details

Name:	us-gaap_DividendsPayableAmountPerShare
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Date the holder must own the stock to be entitled to the dividend, in YYYY-MM-DD format.

+ References

No definition available.

+ Details

Name:	us-gaap_DividendsPayableDateOfRecordDayMonthAndYear
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_DividendsAxis=byd_DividendDeclaredDecember172019Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DividendsAxis=byd_DividendDeclaredMarch22018Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DividendsAxis=byd_DividendDeclaredJune82018Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DividendsAxis=byd_DividendDeclaredSept142018Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DividendsAxis=byd_DividendDeclaredDec72018Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: