Earnings Per Share - Reconciliation of Numerators and Denominators used in Computing Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Aug. 27, 2016	Aug. 29, 2015	Aug. 27, 2016	Aug. 29, 2015
Earnings Per Share [Abstract]
Net income attributable to The Finish Line, Inc.		$ 22,075	$ 25,902	$ 31,701	$ 39,691
Net income attributable to The Finish Line, Inc. attributable to participating securities		420	311	577	476
Net income attributable to The Finish Line, Inc. available to common shareholders		$ 21,655	$ 25,591	$ 31,124	$ 39,215
Basic earnings per share attributable to The Finish Line, Inc. shareholders:
Weighted-average number of common shares outstanding		40,944	44,866	41,357	45,151
Basic earnings per share attributable to The Finish Line, Inc. shareholders (in USD per share)		$ 0.53	$ 0.57	$ 0.75	$ 0.87
Diluted earnings per share attributable to The Finish Line, Inc. shareholders:
Weighted-average number of common shares outstanding		40,944	44,866	41,357	45,151
Dilutive effect of potential common shares(a)	[1]	178	341	149	312
Diluted weighted-average number of common shares outstanding		41,122	45,207	41,506	45,463
Diluted earnings per share attributable to The Finish Line, Inc. shareholders (in USD per share)		$ 0.53	$ 0.57	$ 0.75	$ 0.86

[1] The computation of diluted earnings per share attributable to The Finish Line, Inc. shareholders excludes options to purchase approximately 3.1 million and 1.3 million shares of common stock in the thirteen weeks ended August 27, 2016 and August 29, 2015, respectively, and 3.0 million and 1.3 million shares of common stock in the twenty-six weeks ended August 27, 2016 and August 29, 2015, respectively, because the impact of such options would have been antidilutive.