Debt, Financings (Details) $ in Millions		3 Months Ended
Apr. 30, 2015 USD ($) Community	Mar. 31, 2015 USD ($) Community
First mortgage loan issued in March 2015 [Member]
Financings [Line Items]
Proceeds from debt financing		$ 63.0
Description of Variable Rate Basis		variable rate equal to 90-day LIBOR plus a margin of 325 basis points
Maturity date		Apr. 01, 2020
Number of communities securing mortgage notes \| Community		6
First mortgage loan issued in April 2015 [Member]
Financings [Line Items]
Proceeds from debt financing	$ 65.3
Maturity date	May 01, 2027
Number of communities securing mortgage notes \| Community	6
Weighted average interest rate	3.98%

The number of the company's communities securing the Long-term debt instrument.

No definition available.

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Namespace Prefix:	bkd_
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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(2))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

- Definition

Weighted average interest rate of long-term debt outstanding.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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- Details

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