Related Party Transactions (Details) (USD $)	12 Months Ended			0 Months Ended	1 Months Ended		12 Months Ended		12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Jun. 20, 2007 Affiliates Of Summit Partners [Member]	Dec. 31, 2010 Affiliates Of Summit Partners [Member]	Nov. 30, 2010 Affiliates Of Summit Partners [Member]	Dec. 31, 2012 ProtectCell [Member]	Dec. 31, 2012 South Bay Acceptance Corporation [Member]	Dec. 31, 2011 Director [Member]
Related Party Transaction [Line Items]
Due from Related Parties							$ 6,100,000	$ 100,000
Related party agreement, base service revenue amount									300,000
Notes Payable, Related Parties				20,000,000		20,000,000
Related Party Transaction, Rate				14.00%			8.00%
Repayments of Related Party Debt					20,600,000
Income recorded by the Company from related parties	218,000	0	0
Related party interest expense	0	0	2,769,000
Accounts receivable from related parties	0	125,000
Notes receivable from related parties	$ 6,269,000	$ 0