Quarterly report pursuant to Section 13 or 15(d)

Consolidated Balance Sheets (Parenthetical)

v2.4.1.9
Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Mar. 31, 2014
Statement of Financial Position [Abstract]      
Accounts receivable, allowance $ 16,997us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 18,824us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 17,378us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Preferred stock, par value (usd per share) $ 0.01us-gaap_PreferredStockParOrStatedValuePerShare $ 0.01us-gaap_PreferredStockParOrStatedValuePerShare $ 0.01us-gaap_PreferredStockParOrStatedValuePerShare
Preferred stock, authorized shares (shares) 25,000,000us-gaap_PreferredStockSharesAuthorized 25,000,000us-gaap_PreferredStockSharesAuthorized 25,000,000us-gaap_PreferredStockSharesAuthorized
Preferred stock, issued shares (shares) 0us-gaap_PreferredStockSharesIssued 0us-gaap_PreferredStockSharesIssued 0us-gaap_PreferredStockSharesIssued
Common stock, par value (usd per share) $ 0.01us-gaap_CommonStockParOrStatedValuePerShare $ 0.01us-gaap_CommonStockParOrStatedValuePerShare $ 0.01us-gaap_CommonStockParOrStatedValuePerShare
Common stock, authorized shares (shares) 300,000,000us-gaap_CommonStockSharesAuthorized 300,000,000us-gaap_CommonStockSharesAuthorized 300,000,000us-gaap_CommonStockSharesAuthorized
Common stock, issued shares (shares) 52,565,318us-gaap_CommonStockSharesIssued 52,425,895us-gaap_CommonStockSharesIssued 53,188,408us-gaap_CommonStockSharesIssued