Description Of Business And Basis Of Presentation (Policy)	6 Months Ended
Dec. 31, 2011
Description Of Business And Basis Of Presentation [Abstract]
Unaudited Interim Financial Statements	*Unaudited Interim Financial Statements* The accompanying interim consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States ("GAAP") for interim financial information and the instructions to Rule 10-01 of Regulation S-X, and should be read in conjunction with the Company's Transition Report on Form 10-K/T for the six month transition period ended June 30, 2011. The financial statements as of December 31, 2011 and for the three and six months ended December 31, 2011 and 2010 presented in this Quarterly Report on Form 10-Q are unaudited; however, in the opinion of management such financial statements reflect all adjustments, consisting solely of normal recurring adjustments, necessary for a fair presentation of the results for the interim periods presented. The results of operations for the periods presented are not necessarily indicative of the results that might be expected for future interim periods or for the full year. The dependence of the MSG Sports segment on revenues from its NBA and NHL sports teams generally means it earns a disproportionate share of its revenues in the second and third quarters of our fiscal year (see Note 2 for a discussion of the new NBA collective bargaining agreement ("CBA") and revenue sharing arrangements, as well as the NBA work stoppage). The dependence of the MSG Entertainment segment on revenues from the Radio City Christmas Spectacular generally means it earns a disproportionate share of its revenues and operating income in the second quarter of our fiscal year. In addition, the off-season shutdown of The Garden and The Theater at Madison Square Garden due to the comprehensive transformation of The Garden into a state-of-the-art arena (the "Transformation") has impacted the Company's financial results in the fourth quarter of our 2011 fiscal year and the first quarter of our 2012 fiscal year, and we anticipate similar impacts in those same periods during the planned off-season shutdowns of The Garden and The Theater at Madison Square Garden in the 2012 and 2013 calendar years.

Unaudited Interim Financial Statements

The accompanying interim consolidated financial statements have been prepared in accordance with generally accepted accounting principles in the United States ("GAAP") for interim financial information and the instructions to Rule 10-01 of Regulation S-X, and should be read in conjunction with the Company's Transition Report on Form 10-K/T for the six month transition period ended June 30, 2011. The financial statements as of December 31, 2011 and for the three and six months ended December 31, 2011 and 2010 presented in this Quarterly Report on Form 10-Q are unaudited; however, in the opinion of management such financial statements reflect all adjustments, consisting solely of normal recurring adjustments, necessary for a fair presentation of the results for the interim periods presented. The results of operations for the periods presented are not necessarily indicative of the results that might be expected for future interim periods or for the full year. The dependence of the MSG Sports segment on revenues from its NBA and NHL sports teams generally means it earns a disproportionate share of its revenues in the second and third quarters of our fiscal year (see Note 2 for a discussion of the new NBA collective bargaining agreement ("CBA") and revenue sharing arrangements, as well as the NBA work stoppage). The dependence of the MSG Entertainment segment on revenues from the Radio City Christmas Spectacular generally means it earns a disproportionate share of its revenues and operating income in the second quarter of our fiscal year. In addition, the off-season shutdown of The Garden and The Theater at Madison Square Garden due to the comprehensive transformation of The Garden into a state-of-the-art arena (the "Transformation") has impacted the Company's financial results in the fourth quarter of our 2011 fiscal year and the first quarter of our 2012 fiscal year, and we anticipate similar impacts in those same periods during the planned off-season shutdowns of The Garden and The Theater at Madison Square Garden in the 2012 and 2013 calendar years.