Condensed Consolidated Balance Sheets Parenthetical (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	150,000,000	150,000,000
Common stock, shares issued	30,465,937	30,378,502
Common stock, shares outstanding	30,465,937	30,378,502
Allowance for Doubtful Accounts Receivable, Current	$ 5,045	$ 5,654