This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation".

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 35

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415241&loc=d3e4534-113899

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 20

-Section 55

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=32706628&loc=d3e11149-113907

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 20

-Section 55

-Paragraph 13

-URI http://asc.fasb.org/extlink&oid=32706628&loc=d3e11178-113907

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (USD $) In Millions, unless otherwise specified	Total	Redeemable non-controlling interest	Common Shares	Treasury Shares	Additional Paid in Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Income
Balance at beginning of period at Dec. 31, 2011	$ 30.8us-gaap_StockholdersEquity		$ 1.0	$ (1,059.8)	$ 361.8	$ 742.5	$ (14.7)
Balance at beginning of period at Dec. 31, 2011		0
Balance at beginning of period (in shares) at Dec. 31, 2011			99.2	35.4
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	106.8us-gaap_NetIncomeLoss					106.8
Net income attributable to non-controlling interest	0
Adjustment to pension liability, net of tax of	0
Derivative instruments accounted for as hedges, net of tax	(1.1)						(1.1)
Foreign currency adjustments	8.2						8.2
Exercise of stock options (in shares)				(0.9)
Exercise of stock options	11.4			10.4	1.0
Tax adjustments related to stock compensation	10.5				10.5
Treasury stock repurchased (in shares)				5.0
Treasury stock repurchased	(150.0)			(150.0)
Amortization of unearned stock-based compensation	5.7				5.7
Balance at end of period at Dec. 31, 2012	22.3us-gaap_StockholdersEquity		1.0	(1,199.4)	379.0	849.3	(7.6)
Balance at end of period (in shares) at Dec. 31, 2012			99.2	39.5
Balance at beginning of period at Dec. 31, 2012		0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Acquisition of redeemable non-controlling interest		11.2
Net income	78.6us-gaap_NetIncomeLoss					78.6
Net income attributable to non-controlling interest	0.3	0.3
Adjustment to pension liability, net of tax of	3.2						3.2
Derivative instruments accounted for as hedges, net of tax	1.3						1.3
Foreign currency adjustments	(10.6)						(10.6)
Exercise of stock options (in shares)				(0.6)
Exercise of stock options	8.7			6.9	1.8
Issuances of PRSUs, RSUs and DSUs (shares)				(0.3)
Issuances of PRSUs, RSUs, and DSUs	0			6.4	(6.4)
Tax adjustments related to stock compensation	5.2				5.2
Treasury stock repurchased	(7.0)			(7.0)
Amortization of unearned stock-based compensation	16.9				16.9
Balance at end of period at Dec. 31, 2013	118.6us-gaap_StockholdersEquity		1.0	(1,193.1)	396.5	927.9	(13.7)
Balance at end of period at Dec. 31, 2013	11.5	11.5
Balance at end of period (in shares) at Dec. 31, 2013			99.2	38.6
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	108.9us-gaap_NetIncomeLoss					108.9
Net income attributable to non-controlling interest	1.1	1.1
Adjustment to pension liability, net of tax of	(5.6)						(5.6)
Derivative instruments accounted for as hedges, net of tax	2.0						2.0
Foreign currency adjustments	(38.4)						(38.4)
Exercise of stock options (in shares)				(0.2)
Exercise of stock options	4.3			2.5	1.8
Issuances of PRSUs, RSUs and DSUs (shares)				(0.1)
Issuances of PRSUs, RSUs, and DSUs	0			1.5	(1.5)
Tax adjustments related to stock compensation	1.7				1.7
Treasury stock repurchased	(2.2)			(2.2)
Amortization of unearned stock-based compensation	13.4				13.4
Balance at end of period at Dec. 31, 2014	202.7us-gaap_StockholdersEquity		1.0	(1,191.3)	411.9	1,036.8	(55.7)
Balance at end of period at Dec. 31, 2014	$ 12.6	$ 12.6
Balance at end of period (in shares) at Dec. 31, 2014			99.2	38.3