Share-Based Compensation (Details) - $ / shares	1 Months Ended	6 Months Ended		12 Months Ended
	Apr. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Restricted Stock Units (RSUs)
Number of Options
Granted (in shares)	7,000,000
UHS Holdco, Inc., (Parent) | Options
Number of Options
Outstanding at the beginning of the period (in shares)		37,340,000
Granted (in shares)		16,665,000	0
Forfeited or expired (in shares)		(19,960,000)
Outstanding at the end of the period (in shares)		34,045,000		37,340,000
Exercisable at the end of the period (in shares)		8,954,000
Remaining authorized options available for issue		9,642,000
Weighted average exercise price
Outstanding at the beginning of the period (in dollars per share)		$ 0.84
Granted (in dollars per share)		0.71
Forfeited or expired (in dollars per share)		0.96
Outstanding at the end of the period (in dollars per share)		0.71		$ 0.84
Exercisable at the end of the period (in dollars per share)		$ 0.71
Weighted average remaining contractual term
Outstanding		9 years 4 months 24 days		9 years 10 months 24 days
Exercisable		9 years 4 months 24 days