Stockholders' Equity - Schedule of Stock Based Compensation Expense Awards under Equity Plans (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
2009 LTIP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation	$ 0	$ 900
Equity Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation	3,045	1,224	1,530
Equity Awards [Member] | 2009 LTIP [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation	0	897	733
Equity Awards [Member] | Board of Directors Compensation [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation	222	210	210
Wireless Operations [Member] | 2011 Long Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation	2,000
Wireless Operations [Member] | Equity Awards [Member] | 2011 Long Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation	2,046	0	0
Software Operations [Member] | 2011 Long Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation	800	100	600
Software Operations [Member] | Equity Awards [Member] | 2011 Long Term Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation	$ 777	$ 117	$ 587