The total number of shares issued pursuant to the Company's employee stock purchase plan.

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The number of shares per non-vested stock unit received upon vesting.

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The period in which the actual stock units earned for the interim measurement date are determined, in PnD format.

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No definition available.

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The maximum percentage of stock units earned based on the minimum annualized target shareholder return being achieved.

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- Definition

Number of stock-based compensation plans offered

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No definition available.

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The number of monthly installments in which stock-based compensation awards vest.

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No definition available.

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Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Aggregate number of common shares reserved for future issuance.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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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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Number of shares authorized for issuance under share-based payment arrangement.

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The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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Percentage of vesting of award under share-based payment arrangement.

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Stock-Based Compensation (Narrative) (Details) $ in Thousands			3 Months Ended		9 Months Ended
	Apr. 06, 2020 shares	Apr. 01, 2020 shares	Sep. 30, 2020 USD ($) plan shares	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) installment plan shares	Sep. 30, 2019 USD ($)	Jun. 30, 2020 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock-based compensation plans offered \| plan			1		1
Stock-based compensation cost \| $			$ 85,169	$ 68,969	$ 228,854	$ 202,523
Performance Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance share period to determine actual stock grant following end of interim measurement period		60 days
Performance share earned share cap based on minimum shareholder return (percent)	125.00%	200.00%
Non-vested Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based awards granted and outstanding (shares)			5,748,376		5,748,376
Total unrecognized compensation cost related to stock-based compensation \| $			$ 480,000		$ 480,000
Total unrecognized compensation cost recognition period					1 year 7 months 28 days
2014 Plan [Member] \| Non-vested Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares per non-vested stock unit					1
Stock-based compensation award vesting period, number of monthly installments \| installment					12
2014 Plan [Member] \| Annual vesting on each anniversary [Member] \| Non-vested Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage					33.33%
2015 ESPP Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance under the Plan (shares)			16,000,000		16,000,000
Employee Stock Purchase Plan, total shares issued under plan (shares)			2,675,657		2,675,657
ESPPs [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation cost \| $			$ 4,200	$ 4,000	$ 8,800	$ 9,500
Common Stock [Member] \| 2014 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares authorized for issuance under the Plan (shares)							51,300,000
Shares reserved for issuance under the stock-based compensation plans (shares)			18,516,165		18,516,165
Shares available for grant under the 2014 Plan (shares)			12,718,506		12,718,506
Senior Level Employees [Member] \| Performance Share Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-vested stock unit awards granted to senior level employees (shares)	90,756	294,605