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

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Contractual interest rate for funds borrowed, under the debt agreement.

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Basis of Presentation and Nature of Operations - Narrative (Details)		3 Months Ended		9 Months Ended
	Dec. 31, 2020 $ / shares	Sep. 30, 2021 $ / shares	Sep. 30, 2020 $ / shares	Sep. 30, 2021 segment $ / shares	Sep. 30, 2020 $ / shares	Mar. 10, 2021 $ / shares	Jan. 01, 2021 $ / shares	Dec. 20, 2020 $ / shares
Short-term Debt [Line Items]
Number of operating segments \| segment				2
Share price (in USD per share)		$ 43.55		$ 43.55
Cash dividends declared per share (in USD per share)	$ 5.00	$ 0	$ 0	$ 5.00	$ 0
Merger Agreement
Short-term Debt [Line Items]
Share price (in USD per share)						$ 51.00	$ 56.00	$ 51.00
2¼% Notes
Short-term Debt [Line Items]
Debt instrument interest rate stated percentage	2.25%