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- Definition

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.

+ References

No definition available.

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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

+ References

No definition available.

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
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-Paragraph 1
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- Definition

Amount of lessee's right to use underlying asset under operating lease.

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- Definition

The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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- Definition

Cash received on stock transaction after deduction of issuance costs.

+ References

No definition available.

+ Details

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- Definition

The number of shares issued or sold by the subsidiary or equity method investee per stock transaction.

+ References

No definition available.

+ Details

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- Definition

Percentage of subsidiary's or equity investee's stock owned by parent company after stock transaction.

+ References

No definition available.

+ Details

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- Definition

Per share amount received by subsidiary or equity investee for each share of common stock issued or sold in the stock transaction.

+ References

No definition available.

+ Details

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Business and Basis of Presentation - (Narrative) (Details) $ / shares in Units, shares in Millions, $ in Millions		9 Months Ended		12 Months Ended
	Sep. 20, 2019 USD ($) $ / shares shares	Sep. 27, 2019 USD ($) business_segment	Sep. 28, 2018	Dec. 31, 2018 USD ($) business_segment	Dec. 31, 2017	Dec. 31, 2016	Jan. 01, 2019 USD ($)
Business Acquisition [Line Items]
Business segments (in segments) \| business_segment		2		2
Issuance of common stock (in shares) \| shares	30.8
Payments to acquire businesses	$ 2,000.0
Common stock, shares issued (in shares) \| shares	127.9
Percentage of ownership	80.60%			19.40%
Cash and equivalents		$ 193.2		$ 0.0
Operating lease ROU assets		201.8					$ 182.0
Total operating lease liabilities		$ 213.8					$ 191.0
Customer Concentration Risk
Business Acquisition [Line Items]
Concentration risk, percentage		10.00%		10.00%
Revenue Benchmark \| Customer Concentration Risk
Business Acquisition [Line Items]
Concentration risk, percentage		12.00%	12.00%	14.00%	15.00%	16.00%
IPO
Business Acquisition [Line Items]
Issuance of common stock (in shares) \| shares	30.8
Price per share (in dollars per share) \| $ / shares	$ 22.00
Proceeds from issuance IPO	$ 643.0
Accounts Receivable \| Customer Concentration Risk
Business Acquisition [Line Items]
Concentration risk, percentage		8.00%		8.00%