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[Line Items] for Schedule of Shareholders' Equity [Table]

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Number of shares of equity interests issued or issuable to acquire entity.

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Amount of equity interests of the acquirer, including instruments or interests issued or issuable in consideration for the business combination.

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The amount of liability arising from an inherited contingency (as defined) which has been recognized as of the acquisition date.

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Aggregate dividends declared during the period for each share of common stock outstanding.

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Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.

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Amount of stock repurchase plan authorized.

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The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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Total cost of shares repurchased divided by the total number of shares repurchased.

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Number of shares that have been repurchased during the period and are being held in treasury.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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Stockholders' Equity (Details) - USD ($)					3 Months Ended		6 Months Ended		121 Months Ended	164 Months Ended	180 Months Ended
Stockholders' Equity (Details) - USD ($)	Apr. 05, 2022	Dec. 10, 2021	Nov. 10, 2020	May 15, 2020	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2020	Jun. 30, 2020	Dec. 31, 2021	Mar. 13, 2020	Mar. 05, 2019	May 16, 2018	May 19, 2015
Schedule of Shareholders' Equity [Line Items]
Stock repurchase program, authorized amount													$ 20,000,000	$ 20,000,000	$ 15,000,000
Stock repurchased during period (in shares)							120,119	170,023			14,557,533
Aggregate price of shares repurchased since inception							$ 6,866,000	$ 11,803,000		$ 269,876,000
Average price of shares repurchased since inception (per share)							$ 57.16	$ 69.42			$ 18.54
Cash dividends declared per common share (in dollars per share)					$ 0.19	$ 0.19	$ 0.19	$ 0.19
BasX, LLC
Schedule of Shareholders' Equity [Line Items]
Equity interests issued		$ 78,000,000
Equity interest issued (in shares)		1,037,000
Equity interests issuable (in dollars per share)		$ 0.004
Contingent liability		$ 60,000,000			$ 60,000,000		$ 60,000,000					$ 66,000,000
Shares issued (in shares)	0						486,268
Dividend Declared
Schedule of Shareholders' Equity [Line Items]
Cash dividends declared per common share (in dollars per share)			$ 0.19	$ 0.19	$ 0.19
Open market
Schedule of Shareholders' Equity [Line Items]
Stock repurchase program amount authorized (in shares)																5,700,000
Stock repurchased during period (in shares)							0	0	4,205,255
Aggregate price of shares repurchased since inception							$ 0	$ 0	$ 74,793,000
Average price of shares repurchased since inception (per share)							$ 0	$ 0	$ 17.79
401(k)
Schedule of Shareholders' Equity [Line Items]
Stock repurchased during period (in shares)							103,936	148,317			8,308,368
Aggregate price of shares repurchased since inception							$ 5,913,000	$ 10,271,000			$ 171,789,000
Average price of shares repurchased since inception (per share)							$ 56.89	$ 69.25			$ 20.68
Directors and employees
Schedule of Shareholders' Equity [Line Items]
Stock repurchased during period (in shares)							16,183	21,706		2,043,910
Aggregate price of shares repurchased since inception							$ 953,000	$ 1,532,000		$ 23,294,000
Average price of shares repurchased since inception (per share)							$ 58.89	$ 70.58		$ 11.40