TopBuild Corp. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Accounting Policies (Policies)
Notes Tables
Notes Details

Long-Term Debt - Key Terms of Credit Agreement (Details)

v3.8.0.1

Long-Term Debt - Key Terms of Credit Agreement (Details) - USD ($) $ in Thousands		9 Months Ended
	May 05, 2017	Sep. 30, 2017
Long-Term Debt
Loss on extinguishment of debt		$ 1,086
Amount outstanding		246,875
New Credit Agreement
Long-Term Debt
Additional term loan and/or revolver capacity available under incremental facility		200,000
New Credit Agreement \| Minimum
Long-Term Debt
Commitment fee (as a percent)	0.15%
New Credit Agreement \| Maximum
Long-Term Debt
Commitment fee (as a percent)	0.275%
New Credit Agreement \| Term Loan Facility
Long-Term Debt
Availability		250,000
Additional term loan capacity under delayed draw feature		100,000
Line of Credit Facility Maximum Borrowing Capacity Including Delayed Draw	$ 350,000
Amount outstanding	$ 250,000
New Credit Agreement \| Revolving Facility
Long-Term Debt
Availability		250,000
Sublimit for issuance of letters of credit under Revolving Facility*		100,000
Sublimit for swingline loans under Revolving Facility*		$ 20,000
Interest rate		2.74%
New Credit Agreement \| Base Rate Borrowings \| Minimum
Long-Term Debt
Applicable margin based on total leverage ratio	0.00%
New Credit Agreement \| Base Rate Borrowings \| Maximum
Long-Term Debt
Applicable margin based on total leverage ratio	1.50%
New Credit Agreement \| LIBOR Rate Borrowings \| Minimum
Long-Term Debt
Applicable margin based on total leverage ratio	1.00%
New Credit Agreement \| LIBOR Rate Borrowings \| Maximum
Long-Term Debt
Applicable margin based on total leverage ratio	2.50%
Federal Funds Rate \| New Credit Agreement \| Base Rate Borrowings
Long-Term Debt
Basis spread	0.50%
LIBOR \| New Credit Agreement \| Base Rate Borrowings
Long-Term Debt
Basis spread	1.00%
Maturity of the reference rate	1 month

- Definition

Represents the applicable margin based on the total leverage ratio per the terms of the credit agreement.

+ References

No definition available.

+ Details

Name:	bld_DebitInstrumentApplicableMarginBasedOnTotalLeverageRatio
Namespace Prefix:	bld_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The maturity of the reference rate.

+ References

No definition available.

+ Details

Name:	bld_DebtInstrumentReferenceRateMaturityPeriod
Namespace Prefix:	bld_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

The additional borrowing capacity available through delayed draw feature.

+ References

No definition available.

+ Details

Name:	bld_LineOfCreditFacilityAdditionalBorrowingCapacityAvailableDelayedDraw
Namespace Prefix:	bld_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the additional borrowing capacity available, subject to certain conditions.

+ References

No definition available.

+ Details

Name:	bld_LineOfCreditFacilityAdditionalBorrowingCapacityAvailableSubjectToCertainConditions
Namespace Prefix:	bld_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The maximum borrowing capacity under the line of credit facility including the delayed draw.

+ References

No definition available.

+ Details

Name:	bld_LineOfCreditFacilityMaximumBorrowingCapacityIncludingDelayedDraw
Namespace Prefix:	bld_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the sublimit available for the issuance of letters of credit under the credit facility.

+ References

No definition available.

+ Details

Name:	bld_LineOfCreditFacilitySublimitAvailableForLettersOfCredit
Namespace Prefix:	bld_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the sublimit available for swingline loans under the credit facility.

+ References

No definition available.

+ Details

Name:	bld_LineOfCreditFacilitySublimitAvailableForSwinglineLoans
Namespace Prefix:	bld_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

+ Details

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

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

- 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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3602-108585

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 50
-Section 40
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629

+ Details

Name:	us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

Name:	us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_DebtInstrumentAxis=bld_SeniorSecuredCreditAgreementMay2017Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_ShortTermDebtTypeAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=bld_BaseRateBorrowingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=bld_LIBORRateBorrowingsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=bld_FederalFundsRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_LondonInterbankOfferedRateLIBORMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: