Balance Sheet Components (Details 2) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Mar. 31, 2013
Accrued and other current liabilities:
Accrued personnel expenses	$ 55,165	$ 39,631
Accrued marketing expenses	12,844	11,005
Indirect customer incentive programs	31,737	29,464
Accrued restructuring	2,121	13,458
Deferred revenue	22,529	22,698
Accrued freight and duty	6,276	5,882
Value-added taxes payable	9,354	8,544
Accrued royalties	2,653	3,358
Warranty accrual	13,905	12,782
Employee benefit plan obligation	1,100	994
Income taxes payable	7,701	5,032
Other liabilities	46,587	40,236
Accrued and other current liabilities	211,972	193,084
Non-current liabilities:
Warranty accrual	10,475	8,660
Obligation for deferred compensation	16,611	15,631
Long term restructuring	5,440
Employment benefit plan obligation	37,899	40,551
Deferred rent	15,555	22,315
Deferred tax liability	2,304	2,048
Long term deferred revenue	9,350	8,889
Other liabilities	1,715	1,768
Non-current liabilities	$ 99,349	$ 99,862