Accounts Receivable, Notes Receivable, Allowance for Doubtful Accounts and Bad Debt - Evaluation of Notes Receivable For Impairment (Details) - Notes Receivable - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment, Past Due [Line Items]
Notes receivable	$ 232.2	$ 282.1
Ending Balance Individually Evaluated for Impairment	122.5	157.1
Ending Balance Collectively Evaluated for Impairment	109.7	125.0
Domestic
Financing Receivable, Recorded Investment, Past Due [Line Items]
Notes receivable	62.4	95.3
Ending Balance Individually Evaluated for Impairment	20.7	36.1
Ending Balance Collectively Evaluated for Impairment	41.7	59.2
International
Financing Receivable, Recorded Investment, Past Due [Line Items]
Notes receivable	169.8	186.8
Ending Balance Individually Evaluated for Impairment	101.8	121.0
Ending Balance Collectively Evaluated for Impairment	$ 68.0	$ 65.8

The balance of financing receivables that were collectively evaluated for impairment.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 11B
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=49124121&loc=SL6953423-111524

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- Definition

The balance of financing receivables that were individually evaluated for impairment.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Amount representing an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date. Such amount may include accrued interest receivable in accordance with the terms of the note. The note also may contain provisions and related items including a discount or premium, payable on demand, secured, or unsecured, interest bearing or noninterest bearing, among a myriad of other features and characteristics. Excludes amounts related to receivables held-for-sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.10(3))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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