Employee Benefit Plans - Additional Information (Detail) (USD $)	12 Months Ended							12 Months Ended
	Dec. 31, 2013 USA Mobility, Inc. Savings and Retirement Plan [Member] H	Dec. 31, 2011 USA Mobility, Inc. Savings and Retirement Plan [Member] Software Operations [Member]	Dec. 31, 2011 USA Mobility, Inc. Savings and Retirement Plan [Member] Wireless Operations [Member]	Dec. 31, 2013 USA Mobility, Inc. Savings and Retirement Plan [Member] Wireless Operations [Member] Software Operations [Member]	Dec. 31, 2012 USA Mobility, Inc. Savings and Retirement Plan [Member] Wireless Operations [Member] Software Operations [Member]	Dec. 31, 2013 Severance Pay Plan [Member]	Dec. 31, 2012 Severance Pay Plan [Member]	Dec. 31, 2013 Severance Pay Plan [Member] Minimum [Member] Week	Dec. 31, 2013 Severance Pay Plan [Member] Maximum [Member] Week
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Minimum number of hours worked by employees to cover under the plan	Twenty hours
Employees minimum employment period to participate in plan	30 days
Percent of employee's contribution matched half by employer	50.00%
Defined contribution plan, employee's gross salary, percent	5.00%
Amount of employee's annualized contribution	$ 2,500
Employer contributions vesting period	3 years
Employer contributions vesting percentage for year one	33.00%
Employer contributions vesting percentage for year two	66.00%
Employer contributions vesting percentage for year three	100.00%
Defined contribution plan, vested working hours	1,000
Defined contribution plan, matching contribution		300,000	600,000	1,100,000	1,100,000
Defined contribution plan, maximum terminated employees service weeks								2	26
Defined contribution plan, accrued severance and restructuring liability						$ 1,500,000	$ 2,600,000