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The cash outflow for compensation agreement during the period, pursuant to the terms of a deferred compensation arrangement.

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Increase (decrease) of stock expense due to cap and waiver of receipt of deferred compensation expense during the period.

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Number of votes per share entitled to class of shares.

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Aggregate number of common shares reserved for future issuance.

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The per share price that the individual must pay to acquire shares under the deferred compensation arrangement.

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Amount of cost to be recognized for option under share-based payment arrangement.

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Amount of noncash expense for share-based payment arrangement.

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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 weighted average fair value at grant date for nonvested equity-based awards issued 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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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Stockholders' Equity, Voting Rights, Stock Award and Incentive Plan (Details) $ / shares in Units, $ in Thousands				3 Months Ended			12 Months Ended
	Mar. 05, 2020 $ / shares shares	Jan. 02, 2020 USD ($) $ / shares	Apr. 01, 2019 USD ($) $ / shares	Mar. 31, 2020 USD ($) VoteperShare $ / shares shares	Mar. 31, 2019 USD ($)	Dec. 31, 2017 $ / shares	Dec. 31, 2016 $ / shares	Dec. 31, 2019 $ / shares shares
Actual and projected stock based compensation expense for RSA shares and options [Abstract]
Actual stock based compensation expense \| $				$ 941	$ 577
Employee Service Share-based Compensation, Aggregate Disclosures [Abstract]
Compensation cost related to non-vested options not yet recognized \| $				$ 13,600
Deferred Compensation Arrangements [Abstract]
Payments for compensation agreement \| $		$ 43,700	$ 11,000
Reduction of RSU expense due to cap and waiver of receipt of deferred compensation expense \| $		$ 32,300	$ 4,500
Deferred compensation agreement, share price (in dollars per share) \| $ / shares		$ 18.8812	$ 20.7916			$ 29.1875	$ 32.8187
Stock Options [Member]
Stock Award and Incentive Plan [Abstract]
Stock option outstanding (in shares) \| shares				10,000
Stock option outstanding, exercise price (in dollars per share) \| $ / shares				$ 25.55
Stock Options [Member] \| Maximum [Member]
Stock Award and Incentive Plan [Abstract]
Term of nonqualified stock options				10 years
Restricted Stock Awards [Member]
Stock Award and Incentive Plan [Abstract]
RSAs granted (in shares) \| shares	392,700			264,900
Grant date fair value (in dollars per share) \| $ / shares	$ 14.31			$ 19.17
RSA shares outstanding (in shares) \| shares				1,040,900				660,950
Average weighted grant price (in dollars per share) \| $ / shares				$ 19.54				$ 22.67
Class A [Member]
Voting Rights [Abstract]
Number of votes per share \| VoteperShare				1
Class A [Member] \| Maximum [Member]
Stock Award and Incentive Plan [Abstract]
Number of shares reserved for issuance under each plan (in shares) \| shares				7,500,000
Class B [Member]
Voting Rights [Abstract]
Number of votes per share \| VoteperShare				10