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Earnings Per Share (Narrative) (Details) - USD ($)		3 Months Ended				6 Months Ended
Earnings Per Share (Narrative) (Details) - USD ($)	Jul. 28, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021	Oct. 31, 2021
Antidilutive securities excluded from computation of diluted earnings per share
Common stock, par value (in dollars per share)		$ 0.01		$ 0.01		$ 0.01
Stock repurchase program, remaining authorized repurchase amount			$ 235,000,000
Subsequent Event
Antidilutive securities excluded from computation of diluted earnings per share
Treasury stock, shares, acquired (in shares)	368,806
Shares repurchased, value	$ 25,400,000
Average cost per share (in dollars per share)	$ 68.98
2021 Share Repurchase Program
Antidilutive securities excluded from computation of diluted earnings per share
Stock repurchase program, authorized amount								$ 250,000,000
Treasury stock, shares, acquired (in shares)			1,579,646	1,023,284
Common stock, par value (in dollars per share)				$ 0.01
Shares repurchased, value			$ 153,400,000	$ 96,600,000
Average cost per share (in dollars per share)			$ 97.10	$ 94.42
2022 Share Repurchase Program
Antidilutive securities excluded from computation of diluted earnings per share
Stock repurchase program, authorized amount			$ 250,000,000
Treasury stock, shares, acquired (in shares)		2,164,400	171,022
Shares repurchased, value		$ 192,300,000	$ 17,300,000
Average cost per share (in dollars per share)		$ 88.83	$ 101.09
Stock options
Antidilutive securities excluded from computation of diluted earnings per share
Antidilutive securities excluded from computation of diluted earnings per share (in shares)		252,787			231,500	252,787	285,487
Stock options \| O’Reilly Warrant, the Weinreb Warrant and the Herlitz Warrant
Antidilutive securities excluded from computation of diluted earnings per share
Antidilutive securities excluded from computation of diluted earnings per share (in shares)		2,103,485			2,103,485	2,103,485	2,103,485
Restricted stock
Antidilutive securities excluded from computation of diluted earnings per share
Antidilutive securities excluded from computation of diluted earnings per share (in shares)		323,868			326,958	327,050	472,116