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Indebtedness - Senior Credit Facilities (Details)	Dec. 17, 2019 USD ($)	Dec. 31, 2019 USD ($)	Dec. 16, 2019 USD ($)
Senior Credit Facilities | Senior credit facility
Line of Credit Facility [Line Items]
Consolidated leverage ratio	3.75
Consolidated leverage ratio after certain permitted acquisitions	4.25
Consolidated interest coverage ratio	3.00
Term loan | Term loans
Line of Credit Facility [Line Items]
Face amount of debt	$ 250,000,000.0	$ 250,000,000.0	$ 350,000,000.0
Revolving loans | Domestic revolving credit facility
Line of Credit Facility [Line Items]
Maximum borrowing capacity under financing arrangement	300,000,000.0		200,000,000.0
Revolving loans | Foreign credit instrument facility
Line of Credit Facility [Line Items]
Maximum borrowing capacity under financing arrangement	150,000,000.0		150,000,000.0
Revolving loans | Senior Credit Facilities | Senior credit facility
Line of Credit Facility [Line Items]
Maximum borrowing capacity under financing arrangement	800,000,000.0
Revolving loans | Participation Foreign Credit Instrument Facility | Letters of credit and guarantees
Line of Credit Facility [Line Items]
Maximum borrowing capacity under financing arrangement	55,000,000.0		110,000,000.0
Revolving loans | Bilateral foreign credit instrument facility | Letters of credit and guarantees
Line of Credit Facility [Line Items]
Maximum borrowing capacity under financing arrangement	$ 45,000,000.0		$ 40,000,000.0

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+ 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
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