CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
CONDENSED CONSOLIDATED BALANCE SHEETS
Accounts receivable, allowance for doubtful accounts (in dollars)	$ 1,872	$ 1,707
Deposits and other assets, restricted (in dollars)	$ 381	389
Senior secured notes, premium (in dollars)		$ 4,230
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	75,000,000	75,000,000
Common stock, shares issued	45,631,978	46,398,729
Common stock, shares outstanding	45,631,978	46,398,729