v3.2.0.727
Equity Transactions Equity Rollforward (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended 9 Months Ended 12 Months Ended
Jun. 30, 2015
Mar. 31, 2015
Dec. 31, 2014
Sep. 30, 2014
Jun. 30, 2014
Mar. 31, 2014
Mar. 31, 2011
Jun. 30, 2015
Jun. 30, 2014
Sep. 30, 2014
Dec. 31, 2014
Dec. 31, 2013
Class of Stock [Line Items]                        
Proceeds from Issuance of Warrants               $ 42,881 $ 0      
CASH DIVIDEND DECLARED PER COMMON SHARE $ 0.20 $ 0.20 $ 0.20 $ 0.20 $ 0.20 $ 0.10   $ 0.40 $ 0.30   $ 0.70  
Dividends, Common Stock, Cash $ 7,243 $ 7,232 $ 7,500 $ 7,666 $ 8,033 $ 3,954   $ 14,475 $ 11,987 $ 19,653 $ 27,153  
Equity component of the 2020 Notes, net of tax               38,567 0      
Deferred financing costs allocated to equity                 0      
Stockholders' Equity Attributable to Parent 484,311   468,328   594,087     484,311 594,087   468,328 $ 528,650
Adjustments Related to Tax Withholding for Share-based Compensation               (9,557) (2,814)      
Net Income (Loss) Attributable to Parent 32,602       78,901     61,667 77,040      
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax 13       770     8 382      
Cash dividends declared               (14,475) (11,987)      
Repurchase of common stock               (70,572) (8,454)      
Proceeds from Stock Options Exercised               26 353      
Excess Tax Benefit (Tax Deficiency) from Share-based Compensation, Financing Activities               2,163 1,196      
Convertible note hedge transactions, net of tax               (38,594) 0      
Share-based Compensation               6,299 9,721      
Noncontrolling Interest, Increase from Business Combination               2,551 2,550      
Net Income (Loss) Attributable to Noncontrolling Interest (647)       (789)     (1,380) (1,483)      
Noncontrolling Interest in Variable Interest Entity 8,520   7,349   6,237     8,520 6,237   7,349 $ 5,170
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest $ 492,831   $ 475,677   $ 600,324     $ 492,831 $ 600,324   $ 475,677  
Class of Warrant or Right [Domain]                        
Class of Stock [Line Items]                        
Proceeds from Issuance of Warrants   $ 5,600         $ 4,100