XML 51 R40.htm IDEA: XBRL DOCUMENT
v3.19.2

Basis of Presentation and Summary of Significant Accounting Policies - Accelerated Share Repurchase Agreements (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions | 9 Months Ended |
--- | --- | ---
Jun. 30, 2019 | Dec. 31, 2018
Accelerated Share Repurchases [Line Items] |  |
Agreement Amount |  | $ 50.0
Settlement Date - December 2018 |  |
Accelerated Share Repurchases [Line Items] |  |
Agreement Amount | $ 16.5 |
Initial Shares Delivered | 1.3 |
Additional Shares Delivered | 0.3 |
Total Shares Delivered | 1.6 |
Average price per share (in dollars per share) | $ 10.62 |
Settlement Date - July 2019 |  |
Accelerated Share Repurchases [Line Items] |  |
Agreement Amount | $ 10.0 |
Initial Shares Delivered | 0.9 |
Additional Shares Delivered | 0.1 |
Total Shares Delivered | 1.0 |
Average price per share (in dollars per share) | $ 9.87 |

X
- Definition Accelerated Share Repurchased, Initial Shares Delivered, Shares + References No definition available. + Details
Name: | bzh_AcceleratedShareRepurchasedInitialSharesDeliveredShares
Namespace Prefix: | bzh_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Accelerated Share Repurchased, Total Shares Delivered, Shares + References No definition available. + Details
Name: | bzh_AcceleratedShareRepurchasedTotalSharesDeliveredShares
Namespace Prefix: | bzh_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Accelerated Shares Repurchased, Additional Shares Delivered, Shares + References No definition available. + Details
Name: | bzh_AcceleratedSharesRepurchasedAdditionalSharesDeliveredShares
Namespace Prefix: | bzh_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Final price paid per share for the purchase of the targeted number of shares, determined by an average market price over a fixed period of time. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 25 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6405686&loc=d3e22802-112653 + Details
Name: | us-gaap_AcceleratedShareRepurchasesFinalPricePaidPerShare
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_AcceleratedShareRepurchasesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of stock repurchase plan authorized. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramAuthorizedAmount1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_AcceleratedShareRepurchasesDateAxis=bzh_AcceleratedShareRepurchaseSettlementDateDecember2018Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AcceleratedShareRepurchasesDateAxis=bzh_AcceleratedShareRepurchaseSettlementDateJuly2019Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |