Net Income Attributable to Bloomin' Brands, Inc. Per Common Share (Basic and Diluted EPS) (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Schedule of Earnings Per Share, Basic and Diluted [Line Items]
Net income attributable to Bloomin' Brands, Inc.	$ 17,440	$ 14,003	$ 67,439	$ 68,895
Basic weighted average common shares outstanding	106,360,717	106,134,814	106,360,717	106,134,814
Effect of dilutive securities: [Abstract]
Diluted weighted average common shares outstanding	107,379,688	106,214,347	107,254,785	106,361,768
Basic net income attributable to Bloomin' Brands, Inc. per common share	$ 0.16	$ 0.13	$ 0.63	$ 0.65
Diluted net income attributable to Bloomin' Brands, Inc. per common share	$ 0.16	$ 0.13	$ 0.63	$ 0.65
Stock options [Member]
Effect of dilutive securities: [Abstract]
Dilutive shares	900,623	42,856	804,517	212,687
Unvested restricted stock [Member]
Effect of dilutive securities: [Abstract]
Dilutive shares	118,348	36,677	89,551	14,267