Consolidated Balance Sheets (Parentheticals) - $ / shares	Dec. 31, 2019	Dec. 31, 2018	Feb. 01, 2017	Jan. 31, 2017	Jan. 03, 2017
Statement of Financial Position [Abstract]
Preferred stock, par value (usd per share)	$ 0.01	$ 0.01	$ 0.01	$ 0.01
Preferred stock, shares authorized (shares)	90,000,000	90,000,000	90,000,000	8,750,000
Preferred stock, shares issued (shares)	0	0
Preferred stock, shares outstanding (shares)	0	0
Common stock, shares authorized (shares)	900,000,000	900,000,000	900,000,000		904,732,200
Common stock, par value (usd per share)	$ 0.01	$ 0.01	$ 0.01		$ 0.01
Common stock, shares outstanding (shares)	100,668,003	101,310,862