Business Combination (Details) - USD ($) $ / shares in Units, $ in Millions		12 Months Ended
	May. 09, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Business Combination, Consideration Transferred [Abstract]
Cash consideration transferred to AMCOL shareholders	$ 1,519.4
AMCOL notes repaid at close	325.6
Total consideration transferred to debt and equity holders	1,845.0
Cash acquired	42.7
Total consideration transferred to debt and equity holders, net of cash acquired	$ 1,802.3
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Goodwill		$ 781.2	$ 770.9	$ 64.4
Acquisition and integration related cost		11.8	19.1	$ 0.0
Unaudited pro forma summary of Condensed Consolidated Statements of Income [Abstract]
Net sales		1,797.6	2,098.6
Income (loss) from continuing operations before provision for taxes and equity in earnings		132.6	180.1
Income (loss) from continuing operations, net of tax		$ 111.6	$ 124.7
Tax rate		17.20%	25.00%	27.90%
Preliminary Allocation Previously Reported [Member]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Accounts receivable			$ 235.7
Inventories			157.3
Other current assets			65.0
Mineral rights			535.5
Plant, property and equipment			371.2
Goodwill			708.1
Intangible assets			214.3
Other non-current assets			51.4
Total assets acquired			2,338.5
Accounts payable			66.4
Accrued expenses			61.6
Non-current deferred tax liability			322.3
Other non-current liabilities			85.9
Total liabilities assumed			536.2
Net assets acquired			1,802.3
Increase/(Decrease) [Member]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Accounts receivable		$ 0.0
Inventories		0.0
Other current assets		0.0
Mineral rights		0.0
Plant, property and equipment		0.0
Goodwill		12.8
Intangible assets		8.8
Other non-current assets		9.2
Total assets acquired		30.8
Accounts payable		0.0
Accrued expenses		0.0
Non-current deferred tax liability		1.5
Other non-current liabilities		29.3
Total liabilities assumed		30.8
Net assets acquired		0.0
Preliminary Allocation As Updated [Member]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Accounts receivable		235.7
Inventories		157.3
Other current assets		65.0
Mineral rights		535.5
Plant, property and equipment		371.2
Goodwill		720.9
Intangible assets		223.1
Other non-current assets		60.6
Total assets acquired		2,369.3
Accounts payable		66.4
Accrued expenses		61.6
Non-current deferred tax liability		323.8
Other non-current liabilities		115.2
Total liabilities assumed		567.0
Net assets acquired		1,802.3
AMCOL International Corporation [Member]
Business Acquisition [Line Items]
Consideration received (in dollars per share)	$ 45.75
Debt instrument face amount	$ 1,560.0
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Deferred tax liability on increase of goodwill		323.8
Acquisition and integration related cost		$ 11.8	19.1
Net sales			715.2
Operating income			$ 56.4
Post Acquisition Period			237 days
Unaudited pro forma summary of Condensed Consolidated Statements of Income [Abstract]
Tax rate		28.00%
AMCOL International Corporation [Member] | Technology [Member]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Acquisition of intangible assets with useful life		12 years
AMCOL International Corporation [Member] | Tradenames [Member]
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract]
Acquisition of intangible assets with useful life		34 years