Commitments and Contingencies - Litigation (Details)	0 Months Ended			1 Months Ended	0 Months Ended	1 Months Ended
	Jun. 28, 2013 Patent Lawsuit Against Universal Remote Control [Member] Positive Outcome of Litigation [Member] patent	Feb. 01, 2013 Patent Lawsuit Against Universal Remote Control [Member] Positive Outcome of Litigation [Member] claim patent	Mar. 02, 2012 Patent Lawsuit Against Universal Remote Control [Member] Positive Outcome of Litigation [Member] patent	Mar. 31, 2014 Patent Lawsuit Against Universal Remote Control [Member] Positive Outcome of Litigation [Member] patent	Sep. 23, 2013 Patent Lawsuit Against Peel Technologies, Inc. [Member] Positive Outcome of Litigation [Member] patent	Apr. 30, 2014 Patent Lawsuit Against Peel Technologies, Inc. [Member] Positive Outcome of Litigation [Member] patent	Apr. 30, 2014 Patent Counterclaim Lawsuit by Peel Technologies, Inc. [Member] patent	Mar. 31, 2014 Lawsuit Against Liwang Battery Co. Ltd. [Member] Positive Outcome of Litigation [Member] subsidiary
Gain Contingencies [Line Items]
Gain contingency, patents allegedly infringed upon, number	10	4	4		5	4
Loss contingency, patents allegedly infringed upon, number							1
Gain contingency, claims deemed invalid, number		4
Gain contingency, claims against defendant, number		24
Gain contingency, patents found not infringed upon, number		1		2
Gain contingency, number of subsidiaries that filed arbitration requests								2