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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash, stock and payment-in-kind (PIK).

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Number of options outstanding, including both vested and non-vested options.

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An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

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Price of a single share of a number of saleable stocks of a company.

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

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Amount remaining of a stock repurchase plan authorized.

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Shareholders' Equity (Narrative) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands			1 Months Ended	3 Months Ended		9 Months Ended
	Jun. 01, 2022	Mar. 31, 2022	Jul. 31, 2022	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Increase (decrease) in stock-based compensation from change in management's estimate						$ 2,779
Unrecognized compensation cost				$ 72,913		72,913
Total intrinsic value of options exercised						18,147
Aggregate intrinsic value of options exercisable				$ 33,688		$ 33,688
Market value of Company's common stock (in USD per share)				$ 49.05		$ 49.05
Weighted average exercise price per share (in USD per share)				$ 49.90		$ 49.90
Total options outstanding (in shares)				17,645		17,645
Total options exercisable (in shares)				7,705		7,705
Share-based payment arrangement, expense, after tax				$ 8,849	$ 9,461	$ 25,488	$ 25,558
Dividends declared per common share (in USD per share)	$ 0.40			$ 0	$ 0	$ 0.40	$ 0.37
Cash dividends declared						$ 54,378	$ 52,389
One-time Termination Benefits
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based payment arrangement, expense, after tax			$ 2,307
Reversal Tto share-based compensation				$ 784
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period		4 years
Common Stock Buyback
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares purchased and retired (in shares)						4,573
Company purchased, cost						$ 258,817
Additional authorized amount	$ 200,000
Remaining stock repurchase authorization amount				$ 172,477		$ 172,477
2014 Plan \| Tranche One
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rate						50.00%
2014 Plan \| Tranche Two
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting rate						50.00%
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award waiting period						2 years
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award waiting period						4 years