Operating Segments and Geographic Information Income Statement (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2013		Jun. 30, 2012
Segment Reporting Information [Line Items]
Revenues	$ 363,827		$ 330,942		$ 675,483		$ 602,740
Income from operations	50,419		71,261		88,069		111,056
Interest income	(517)		(549)		(823)		(907)
Interest expense	266		132		475		179
Foreign currency transaction losses, net	814		(1,627)		3,414		2,649
Other (income) expense, net	195		(520)		167		(761)
Income before taxes	49,661		73,825		84,836		109,896
Depreciation and amortization	10,258		8,904		20,522		17,257
Americas [Member]
Segment Reporting Information [Line Items]
Revenues	146,255		134,611		275,684		251,918
Income from operations	23,005	[1]	31,038	[1]	43,818	[1]	49,689	[1]
Depreciation and amortization	2,431		2,948		4,973		5,183
Asia Pacific [Member]
Segment Reporting Information [Line Items]
Revenues	111,832		91,625		202,289		159,276
Income from operations	35,685		29,569		62,788		47,474
Depreciation and amortization	1,200		994		2,478		2,303
Japan [Member]
Segment Reporting Information [Line Items]
Revenues	45,472		55,232		75,831		89,605
Income from operations	17,463		26,511		25,023		40,667
Depreciation and amortization	375		481		776		899
Europe [Member]
Segment Reporting Information [Line Items]
Revenues	60,170		49,427		121,516		101,769
Income from operations	11,657		12,103		24,328		26,201
Depreciation and amortization	1,281		685		2,431		1,292
Total Segment Revenues [Member]
Segment Reporting Information [Line Items]
Revenues	363,729		330,895		675,320		602,568
Total Segment Operating Income [Member]
Segment Reporting Information [Line Items]
Income from operations	87,810		99,221		155,957		164,031
Total Segment Depreciation And Amortization [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization	5,287		5,108		10,658		9,677
Other businesses [Member]
Segment Reporting Information [Line Items]
Revenues	98		47		163		172
Income from operations	(5,535)		(2,875)		(9,412)		(5,731)
Depreciation and amortization	2,123	[1]	1,517	[1]	4,240	[1]	3,061	[1]
Intersegment eliminations [Member]
Segment Reporting Information [Line Items]
Income from operations	15		15		30		39
Unallocated corporate and other [Member]
Segment Reporting Information [Line Items]
Income from operations	(31,871)	[1],[2]	(25,100)	[1],[2]	(58,506)	[1],[2]	(47,283)	[1],[2]
Depreciation and amortization	$ 2,848	[2]	$ 2,279	[2]	$ 5,624	[2]	$ 4,519	[2]

[1] Includes $0.2 million for each of the three and six months ended June 30, 2013 and $0.1 million and $0.8 million for each of the three and six months ended June 30, 2012, respectively, of asset impairment charges related to certain underperforming retail locations.(2)

[2] Includes a corporate component consisting primarily of corporate support and administrative functions, costs associated with share-based compensation, research and development, brand marketing, legal, depreciation and amortization of corporate and other assets not allocated to operating segments and costs of the same nature related to certain corporate holding companies.