Equity impact of the value of stock that has been repurchased and retired during the period. The excess of the purchase price over par value can be charged against retained earnings (once the excess is fully allocated to additional paid in capital).

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-Name Accounting Standards Codification
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-Publisher FASB
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Name:	us-gaap_StockRepurchasedAndRetiredDuringPeriodValue
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Common Shares and Net Income (Loss) per Common Share - Additional Information (Details) - USD ($)		3 Months Ended	9 Months Ended
	May 01, 2018	Sep. 29, 2018	Sep. 29, 2018	Sep. 30, 2017
Equity, Class of Treasury Stock [Line Items]
Stock repurchased during period			$ 46,100,000	$ 1,900,000
Share Repurchase Program, One
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount	$ 50,000,000.0
Stock repurchase program, period in force	12 months
Stock repurchased during period (in shares)		1,560,736	2,556,117
Stock repurchased during period		$ 24,000,000	$ 40,000,000