Shareholders' Equity (Details)			1 Months Ended			12 Months Ended
	Sep. 24, 2019 $ / shares	Sep. 27, 2016 $ / shares	Sep. 30, 2018 $ / shares	Sep. 30, 2017 $ / shares	Dec. 31, 2016 $ / shares	Nov. 30, 2019 USD ($) unit $ / shares shares	Nov. 30, 2018 USD ($) $ / shares shares		Nov. 30, 2017 USD ($) $ / shares shares		Jan. 27, 2020 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Preferred stock, shares issued (in shares)						0	0
Preferred stock, shares outstanding (in shares)						0
Common stock, shares authorized (in shares)						200,000,000	200,000,000
Common stock, par value (in dollars per share) | $ / shares						$ 0.01	$ 0.01
Common stock, shares issued (in shares)						45,036,441	45,114,935
Common stock, shares outstanding (in shares)						45,036,441	45,114,935
Share repurchase program, authorized amount | $						$ 75,000,000.0
Common stock repurchased and retired (in shares)						700,000	2,900,000		2,200,000
Common stock repurchased and retired, value (in dollars) | $						$ 25,000,000	$ 120,000,000		$ 73,936,000
Remaining authorized repurchase amount | $						$ 75,000,000.0
Cash dividends declared per common share (in dollars per share) | $ / shares	$ 0.165	$ 0.125	$ 0.155	$ 0.14	$ 0.125	$ 0.630	$ 0.575	[1]	$ 0.515	[1]
Cash dividends, increase (as a percent)	6.00%		11.00%
Dividends paid | $						$ 27,800,000	$ 25,800,000		$ 24,100,000
Deferred Stock Unit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Deferred stock units, shares outstanding (in shares)						170,359
Deferred stock unit of common stock (in shares) | unit						1
Subsequent Event
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share repurchase program, authorized amount | $											$ 250,000,000.0

[1] The Company adopted the accounting standard related to revenue recognition ("ASC 606") effective December 1, 2018 using the full retrospective method. See Note 1. Nature of Business and Summary of Significant Accounting Policies for further information.