Income Taxes (Tables)

9 Months Ended

Sep. 30, 2017

Income Tax Disclosure [Abstract]

Schedule of Deferred Tax Assets and Liabilities

The following table summarizes the balance of deferred tax assets, net of deferred tax liabilities, at September 30, 2017, of $691.0 million:

(In millions)	Deferred Tax Asset (Net of Liabilities)		Valuation Allowance			Net Deferred Tax Asset
United States—Federal	$	615.7	$	(17.7	)	$	598.0
United States—States	54.6		(11.2		)	43.4
Germany	44.1		—			44.1
Other foreign	8.0		(2.5		)	5.5
Total	$	722.4	$	(31.4	)	$	691.0

Summary of Operating Loss Carryforwards

The following table summarizes expiration dates in jurisdictions where Grace has, or will have, material tax loss and credit carryforwards:

	Expiration Dates
United States—Federal (NOLs)	2034 - 2035
United States—Federal (Credits)	2019 - 2027
United States—States (NOLs)	2017 - 2035