Recent Accounting Pronouncements - Additional Information (Details) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Deferred income tax asset, current		$ 0
Deferred income tax liability, current		0
Deferred income tax asset, noncurrent	$ 1,300,000	160,900,000
Deferred income tax liability, noncurrent		399,800,000
Previously Recognized
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Deferred income tax asset, current		13,400,000
Deferred income tax liability, current		3,900,000
Deferred income tax asset, noncurrent		164,400,000
Deferred income tax liability, noncurrent		412,800,000
Kronos Worldwide, Inc. | 2014 Term Loan
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Deferred financing costs		$ 5,100,000