Subsequent Events - Additional Information (Detail) - USD ($) $ in Thousands, shares in Millions	1 Months Ended	6 Months Ended
	Jul. 31, 2016	Jun. 30, 2016	Dec. 31, 2015	Jun. 30, 2015	Mar. 18, 2013
Subsequent Event [Line Items]
Debt instrument, cash paid to repurchase convertible notes		$ 161,132
Convertible Notes | 1.50% Senior Subordinated Notes Due March 15, 2018
Subsequent Event [Line Items]
Debt instrument, par value of notes repurchased		$ 51,700
Debt instrument, interest rate, stated percentage		1.50%	1.50%	1.50%	1.50%
Debt instrument, cash paid to repurchase convertible notes		$ 17,800
Convertible Notes | 1.50% Senior Subordinated Notes Due March 15, 2018 | Common Stock
Subsequent Event [Line Items]
Debt instrument, shares issued to repurchase convertible notes		3.5
Subsequent Event | Hong Kong MH Umbro International Co. Limited
Subsequent Event [Line Items]
Cash consideration	$ 25,000
Equity ownership percentage	50.00%
Business acquisition completion period	4 years
Subsequent Event | Hong Kong MH Umbro International Co. Limited | Maximum
Subsequent Event [Line Items]
Aggregate percentage of interest in newly registered company in Hong Kong	50.00%
Subsequent Event | Convertible Notes | 1.50% Senior Subordinated Notes Due March 15, 2018
Subsequent Event [Line Items]
Debt instrument, par value of notes repurchased	$ 53,200
Debt instrument, interest rate, stated percentage	1.50%
Debt instrument, cash paid to repurchase convertible notes	$ 18,400
Debt instrument, repurchased accrued and unpaid interest	$ 300
Subsequent Event | Convertible Notes | 1.50% Senior Subordinated Notes Due March 15, 2018 | Common Stock
Subsequent Event [Line Items]
Debt instrument, shares issued to repurchase convertible notes	3.9
Subsequent Event | Complex Media
Subsequent Event [Line Items]
Cash received in connection with sale of interest	$ 35,300
Additional amount held in escrow	$ 3,700
Period for amount held in escrow	P12M
Period following the closing date for escrow account	18 months