CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2013
Current assets:
Cash and cash equivalents	$ 199,220	$ 231,988	$ 181,418
Accounts receivable, net of allowances for doubtful accounts	32,051	29,920	61,919
Inventories	64,220	52,293	66,601
Prepaid expenses and other current assets	12,479	10,416	10,195
Deferred income taxes	24,215	22,553	10,777
Total current assets	332,185	347,170	330,910
Deferred income taxes	65,931	57,810	15,225
Property and equipment, net	33,935	30,765	27,301
Capitalized content and website development costs, net	21,668	19,058	15,151
Goodwill	19,549	19,549	19,549
Other intangible assets, net	3,883	3,805	3,105
Other assets	1,423	1,473	1,178
Total assets	478,574	479,630	412,419
Current liabilities:
Accounts payable	32,779	19,146	45,530
Accrued liabilities	22,735	23,930	24,492
Deferred revenue	12,439	12,808	7,930
Income taxes payable	457	689	688
Total current liabilities	68,410	56,573	78,640
Long-term deferred income taxes	3,812	3,812	3,759
Other long-term liabilities	1,043	1,125	1,944
Total liabilities	73,265	61,510	84,343
Commitments and contingencies
Stockholders' equity:
Common Stock	7	7	7
Treasury stock	(185)	(185)	(185)
Additional paid-in capital	425,345	422,678	411,017
Accumulated other comprehensive income (loss)	312	(578)	(434)
Accumulated deficit	(20,170)	(3,802)	(82,329)
Total stockholders' equity	405,309	418,120	328,076
Total liabilities and stockholders' equity	478,574	479,630	412,419
Class A Common Stock [Member]
Stockholders' equity:
Common Stock	7	7	7
Class B Common Stock [Member]
Stockholders' equity:
Common Stock