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

Quarterly report pursuant to Section 13 or 15(d)

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

Long-Term Debt - Key Terms of Credit Agreement (Details) - USD ($) $ in Thousands			3 Months Ended	6 Months Ended
	May 01, 2018	Apr. 25, 2018	Jun. 30, 2018	Jun. 30, 2018	Mar. 28, 2018	Dec. 31, 2017	May 05, 2017
Long-Term Debt
Proceeds from issuance of senior notes				$ 400,000
Amount outstanding			$ 750,784	750,784
Equipment notes issued				15,066
Term Loan Facility
Long-Term Debt
Amount outstanding			336,250	336,250
Senior Notes 5.625%
Long-Term Debt
Amount outstanding			400,000	400,000
Equipment Notes
Long-Term Debt
Amount outstanding			14,534	14,534
Equipment notes issued			5,000	15,066
Revolving Facility
Long-Term Debt
Availability			250,000	$ 250,000		$ 250,000
Amended Credit Agreement
Long-Term Debt
Maximum amount of senior notes that may be issued under the credit agreement					$ 500,000
Amended Credit Agreement \| Minimum
Long-Term Debt
Commitment fee (as a percent)				0.15%
Amended Credit Agreement \| Maximum
Long-Term Debt
Commitment fee (as a percent)				0.275%
Amended Credit Agreement \| Term Loan Facility
Long-Term Debt
Proceeds from delayed-draw term loan	$ 100,000
Availability			250,000	$ 250,000
Additional delayed draw term loan			100,000	100,000
Additional term loan and/or revolver capacity available under incremental facility			200,000	200,000
Maximum borrowing capacity including delayed draw feature			350,000	350,000
Amount outstanding							$ 250,000
Amended Credit Agreement \| Senior Notes 5.625%
Long-Term Debt
Proceeds from issuance of senior notes		$ 400,000
Interest rate		5.625%
Amended Credit Agreement \| Senior Notes 5.625% \| Change in Control Scenario
Long-Term Debt
Redemption price as a percentage of principal		101.00%
Amended Credit Agreement \| Revolving Facility
Long-Term Debt
Availability			250,000	250,000
Sublimit for issuance of letters of credit under Revolving Facility*			100,000	100,000
Sublimit for swingline loans under Revolving Facility*			$ 20,000	$ 20,000
Interest rate			3.23%	3.23%
Amended Credit Agreement \| Base Rate Borrowings \| Minimum
Long-Term Debt
Applicable margin based on total leverage ratio				0.00%
Amended Credit Agreement \| Base Rate Borrowings \| Maximum
Long-Term Debt
Applicable margin based on total leverage ratio				1.50%
Amended Credit Agreement \| LIBOR Rate Borrowings \| Minimum
Long-Term Debt
Applicable margin based on total leverage ratio				1.00%
Amended Credit Agreement \| LIBOR Rate Borrowings \| Maximum
Long-Term Debt
Applicable margin based on total leverage ratio				2.50%
Federal Funds Rate \| Amended Credit Agreement \| Base Rate Borrowings
Long-Term Debt
Basis spread				0.50%
LIBOR \| Amended Credit Agreement \| Base Rate Borrowings
Long-Term Debt
Basis spread				1.00%
Maturity of the reference rate				1 month