Debt Arrangements - Additional Information (Detail) - USD ($)							1 Months Ended			3 Months Ended
	Mar. 18, 2013	Mar. 13, 2013	Mar. 12, 2013	Nov. 29, 2012	May. 23, 2011	May. 17, 2011	Feb. 28, 2015	Jun. 30, 2014	Mar. 31, 2013	Mar. 31, 2015		Mar. 31, 2014	Dec. 31, 2014	Jun. 21, 2013
Debt Instrument [Line Items]
Ownership Percentage														50.00%
Long term debt, current										$ 61,123,000			$ 61,123,000
Cash, restricted cash										43,550,000			59,560,000
Long term debt										1,486,312,000			1,394,077,000
Non cash additional interest expense on convertible notes										7,516,000		$ 7,078,000
Sale of 1.5% Convertible Notes, shares repurchased value										10,000,000
Class A Variable Funding Note
Debt Instrument [Line Items]
Principal amount of long term debt				$ 100,000,000
Variable Funding Notes
Debt Instrument [Line Items]
Commitment fee on the unused portion of the variable funding notes facility							0.50%
Debt Instrument anticipated repayment year and month							2018-01
Additional interest rate							5.00%
Net proceeds received from issuance of debt							$ 100,000,000
Hardy Way
Debt Instrument [Line Items]
Ownership Percentage				85.00%
MG Icon
Debt Instrument [Line Items]
Ownership Percentage				50.00%
Zoo York brand
Debt Instrument [Line Items]
Ownership Percentage				100.00%
Peanuts Worldwide
Debt Instrument [Line Items]
Ownership Percentage				80.00%
Senior Secured Notes
Debt Instrument [Line Items]
Principal amount of long term debt				$ 600,000,000						858,800,000				$ 275,000,000
Debt instrument, interest rate, stated percentage				4.229%										4.352%
Debt Instrument anticipated repayment year and month				2020-01
Additional interest rate				5.00%
Debt instrument, quarterly payment								$ 1,600,000
Debt instrument, Maturity Date				2043-01
Debt instrument description of interest				If the Co-Issuers have not repaid or refinanced the Senior Secured Notes prior to the anticipated repayment date, additional interest will accrue on the Senior Secured Notes equal to the greater of (A) 5% per annum and (B) a per annum interest rate equal to the excess, if any, by which the sum of (i) the yield to maturity (adjusted to a quarterly bond-equivalent basis), on the anticipated repayment date of the United States treasury security having a term closest to 10 years plus (ii) 5% plus (iii) with respect to the 2012 Senior Secured Notes, 3.4%, or with respect to the 2013 Senior Secured Notes, 3.14%, exceeds the original interest rate.
Anticipated repayment date				10 years
Excess interest rate on original interest rate				3.40%
Long term debt, current										61,100,000
Cash, restricted cash										43,600,000			58,700,000
Long term debt										758,750,000			$ 774,030,000
Senior Secured Notes Due In Twenty Twelve
Debt Instrument [Line Items]
Debt instrument, quarterly payment				$ 10,500,000
Proceeds from issuance of debt instrument				150,400,000
Payments of securitized financing transaction				20,900,000
Senior Secured Notes Due In Twenty Twelve | Umbro
Debt Instrument [Line Items]
Payment for the acquisition of Brand				218,300,000
Senior Secured Notes Due In Two Thousand Thirteen
Debt Instrument [Line Items]
Debt instrument, quarterly payment				$ 4,800,000
Excess interest rate on original interest rate				3.14%
Proceeds from issuance of debt instrument				$ 7,200,000
1.50% Convertible Notes
Debt Instrument [Line Items]
Principal amount of long term debt	$ 400,000,000									$ 400,000,000
Debt instrument, interest rate, stated percentage	1.50%									1.50%			1.50%
Net proceeds received from issuance of debt	$ 390,600,000
Debt instrument, maturity date	Mar. 15, 2018
Debt instrument, payment terms	The 1.50% Convertible Notes bear interest at an annual rate of 1.50%, payable semi-annually in arrears on March 15 and September 15 of each year, beginning on September 15, 2013.
Debt instrument, effective interest rate	6.50%
Debt instrument, conversion rate	32.4052
Principal amount of each convertible note	$ 1,000
Convertible notes, initial conversion price per share	$ 30.86
Debt Instrument, Redemption Price, Percentage										100.00%
Debt Instrument, Redemption, Description										Price equal to 100% of the principal amount of the 1.50% Convertible Notes, plus accrued and unpaid interest, if any.
Long term debt										$ 344,113,000	[1]		$ 339,943,000
Non cash additional interest expense on convertible notes										3,900,000		3,600,000
Cash interest expense for convertible notes										1,500,000		1,500,000
Sale of 1.5% Convertible Notes, shares repurchased	2,964,000
Sale of 1.5% Convertible Notes, shares repurchased value	$ 69,000,000
Sold warrants, shares of common stock		13,000,000
Sold warrants, shares of common stock strike price per share		$ 35.5173
Sold warrants, shares of common stock exercise date		Jun. 18, 2018
Sold warrants, shares of common stock expiring date		Sep. 01, 2018
Proceeds received from sale of sold warrants		$ 57,700,000
Adjustments to additional paid in capital due convertible note hedge and warrants									$ 3,000,000
Convertible notes, warrant strike price			$ 35.5173
Percentage of premiums			52.50%
Selling price per share of common stock			$ 23.29
1.50% Convertible Notes | Long | Call Option
Debt Instrument [Line Items]
Convertible notes, common stock option shares	13,000,000
Payment for the purchased call option		84,100,000
Deferred income tax related to convertible notes		$ 29,400,000								17,400,000
1.50% Convertible Notes | Semi Annual Payment, First Payment
Debt Instrument [Line Items]
Debt instrument, interest payment period	--03-15
1.50% Convertible Notes | Semi Annual Payment, Second Payment
Debt Instrument [Line Items]
Debt instrument, interest payment period	--09-15
1.50% Convertible Notes | Minimum
Debt Instrument [Line Items]
Percentage of closing price of the Company's common stock for at least 20 trading days in the 30 consecutive trading days	130.00%
1.50% Convertible Notes | Maximum
Debt Instrument [Line Items]
Percentage of closing price of the Company's common stock for at least 20 trading days in the 30 consecutive trading days	98.00%
2.50% Convertible Notes
Debt Instrument [Line Items]
Principal amount of long term debt					$ 300,000,000					$ 300,000,000
Debt instrument, interest rate, stated percentage					2.50%					2.50%			2.50%
Net proceeds received from issuance of debt					$ 291,600,000
Debt instrument, payment terms					The 2.50% Convertible Notes bear interest at an annual rate of 2.50%, payable semi-annually in arrears on June 1 and December 1 of each year, beginning December 1, 2011.
Debt instrument, effective interest rate					7.25%
Debt instrument, conversion rate					32.5169
Principal amount of each convertible note					$ 1,000
Convertible notes, initial conversion price per share					$ 30.75
Debt Instrument, Redemption Price, Percentage										100.00%
Debt Instrument, Redemption, Description										Purchase price equal to 100% of the principal amount of the 2.50% Convertible Notes, plus accrued and unpaid interest, if any.
Long term debt										$ 283,449,000	[2]		$ 280,104,000
Non cash additional interest expense on convertible notes										3,000,000		2,800,000
Cash interest expense for convertible notes										1,900,000		$ 1,900,000
Sold warrants, shares of common stock					9,760,000
Sold warrants, shares of common stock strike price per share					$ 40.6175
Sold warrants, shares of common stock exercise date					Sep. 01, 2016
Sold warrants, shares of common stock expiring date					Dec. 31, 2016
Proceeds received from sale of sold warrants					$ 28,800,000
Adjustments to additional paid in capital due convertible note hedge and warrants					$ (9,400,000)
Convertible notes, warrant strike price						$ 40.6175
Percentage of premiums						75.00%
Selling price per share of common stock						$ 23.21
Debt instrument, maturity date, month and year					2016-06
2.50% Convertible Notes | Long | Call Option
Debt Instrument [Line Items]
Convertible notes, common stock option shares					9,800,000
Payment for the purchased call option					$ 58,700,000
Deferred income tax related to convertible notes					$ 20,600,000					$ 4,900,000
2.50% Convertible Notes | Semi Annual Payment, First Payment
Debt Instrument [Line Items]
Debt instrument, interest payment period					--06-01
2.50% Convertible Notes | Semi Annual Payment, Second Payment
Debt Instrument [Line Items]
Debt instrument, interest payment period					--12-01
2.50% Convertible Notes | Minimum
Debt Instrument [Line Items]
Percentage of closing price of the Company's common stock for at least 20 trading days in the 30 consecutive trading days					130.00%
2.50% Convertible Notes | Maximum
Debt Instrument [Line Items]
Percentage of closing price of the Company's common stock for at least 20 trading days in the 30 consecutive trading days					98.00%

[1] Reflects the net debt carrying amount of the 1.50% Convertible Notes in the consolidated balance sheet as of March 31, 2015, in accordance with accounting for convertible notes. The principal amount owed to the holders of the 1.50% Convertible Notes is $400.0 million.

[2] Reflects the net debt carrying amount of the 2.50% Convertible Notes in the consolidated balance sheet as of March 31, 2015, in accordance with accounting for convertible notes. The principal amount owed to the holders of the 2.50% Convertible Notes is $300.0 million.