The facility fee on the debt instrument, expressed as a percentage of the total borrowing capacity.

No definition available.

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- Definition

The amount of maximum uncommitted incremental facility.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

+ References

No definition available.

+ Details

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

Amount of unused borrowing capacity under the long-term financing arrangement that is available to the entity as of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Debt - Credit Agreements (Details) SFr in Millions, $ in Millions			12 Months Ended
	Dec. 11, 2019 CHF (SFr)	Oct. 27, 2015 USD ($)	Dec. 31, 2019 USD ($)	Dec. 11, 2019 USD ($)	Jan. 31, 2012 USD ($)
Revolving lines of credit
Maximum commitment			$ 851.8
Adjusted LIBOR
Revolving lines of credit
Interest rate added to base rate (as a percent)			1.00%
2019 Credit Agreement
Revolving lines of credit
Maximum commitment			$ 600.0	$ 600.0
Revolving credit facility term			5 years
Incremental facility			$ 250.0
2019 Credit Agreement \| Minimum
Revolving lines of credit
Facility fee (as a percent)			0.10%
2019 Credit Agreement \| Maximum
Revolving lines of credit
Facility fee (as a percent)			0.20%
2019 Credit Agreement \| Greatest of prime rate, federal funds rate plus spread and adjusted LIBOR plus spread \| Minimum
Revolving lines of credit
Interest rate added to base rate (as a percent)			0.10%
2019 Credit Agreement \| Greatest of prime rate, federal funds rate plus spread and adjusted LIBOR plus spread \| Maximum
Revolving lines of credit
Interest rate added to base rate (as a percent)			0.50%
2019 Credit Agreement \| Prime rate
Revolving lines of credit
Variable interest rate base			prime rate
2019 Credit Agreement \| Federal Funds
Revolving lines of credit
Variable interest rate base			federal funds effective rate
Interest rate added to base rate (as a percent)			0.50%
2019 Credit Agreement \| Adjusted LIBOR
Revolving lines of credit
Variable interest rate base			adjusted LIBOR
2019 Credit Agreement \| LIBOR
Revolving lines of credit
Variable interest rate base			LIBOR
2019 Credit Agreement \| LIBOR \| Minimum
Revolving lines of credit
Interest rate added to base rate (as a percent)			1.00%
2019 Credit Agreement \| LIBOR \| Maximum
Revolving lines of credit
Interest rate added to base rate (as a percent)			1.50%
2019 Term Loan
Revolving lines of credit
Maximum commitment				$ 300.0
Revolving credit facility term	7 years
2019 Term Loan \| Prime rate
Revolving lines of credit
Variable interest rate base	prime rate
2019 Term Loan \| Federal Funds
Revolving lines of credit
Interest rate added to base rate (as a percent)	0.50%
2019 Note Purchase Agreement
Revolving lines of credit
Interest rate added to base rate (as a percent)	1.01%
Additional aggregate principal amount that may be issued \| SFr	SFr 297
2015 Revolving Credit Agreement
Revolving lines of credit
Maximum commitment		$ 500.0
Revolving credit facility term		5 years
2015 Revolving Credit Agreement \| Minimum
Revolving lines of credit
Facility fee (as a percent)		0.10%
2015 Revolving Credit Agreement \| Maximum
Revolving lines of credit
Facility fee (as a percent)		0.20%
2015 Revolving Credit Agreement \| Greatest of prime rate, federal funds rate plus spread and adjusted LIBOR plus spread \| Minimum
Revolving lines of credit
Interest rate added to base rate (as a percent)		0.00%
2015 Revolving Credit Agreement \| Greatest of prime rate, federal funds rate plus spread and adjusted LIBOR plus spread \| Maximum
Revolving lines of credit
Interest rate added to base rate (as a percent)		0.30%
2015 Revolving Credit Agreement \| Prime rate
Revolving lines of credit
Variable interest rate base		prime rate
2015 Revolving Credit Agreement \| Federal Funds
Revolving lines of credit
Variable interest rate base		federal funds rate
Interest rate added to base rate (as a percent)		0.50%
2015 Revolving Credit Agreement \| Adjusted LIBOR
Revolving lines of credit
Variable interest rate base		adjusted LIBOR
Interest rate added to base rate (as a percent)		1.00%
2015 Revolving Credit Agreement \| LIBOR
Revolving lines of credit
Variable interest rate base		LIBOR
Interest rate added to base rate (as a percent)		1.30%
2015 Revolving Credit Agreement \| LIBOR \| Minimum
Revolving lines of credit
Interest rate added to base rate (as a percent)		0.90%
4.31% Series 2012A Senior Notes, Tranche C, due January 18, 2022
Revolving lines of credit
Facility fee (as a percent)		4.31%
Senior notes		$ 105.0			$ 105.0
4.46% Series 2012A Senior Notes, Tranche D, due January 18, 2024
Revolving lines of credit
Facility fee (as a percent)		4.46%
Senior notes		$ 100.0			$ 100.0