15. Quarterly Results of Operations (Unaudited): Quarter Ended March 31 June 30 Sept. 30 Dec. 31 (In thousands, except per share data) (Unaudited) 2014 Revenues ................................. $204,073 $230,315 $241,750 $254,819 Cost of sales .............................. 110,787 124,993 135,250 142,497 Gross profit ............................... 93,286 105,322 106,500 112,322 Operating income .......................... 58,567 68,954 72,992 78,235 Net income ............................... 42,618 51,324 55,683 59,087 Earnings per share: Basic(1) .............................. $ 1.05 $ 1.27 $ 1.41 $ 1.51 Diluted(1) ............................ 1.04 1.27 1.40 1.50 2013 Revenues ................................. $193,155 $222,031 $224,724 $232,462 Cost of sales .............................. 116,328 133,203 132,131 132,244 Gross profit ............................... 76,827 88,828 92,593 100,218 Operating income .......................... 52,177 56,215 51,985 63,168 Net income ............................... 39,842 42,927 39,995 47,063 Earnings per share: Basic(1) .............................. $ 0.98 $ 1.06 $ 0.98 $ 1.16 Diluted(1) ............................ 0.98 1.05 0.98 1.15 (1) The sum of the quarterly per share amounts may not equal the annual amount reported, as per share amounts are computed independently for each quarter and for the full year. None. In accordance with Exchange Act Rules 13a-15 and 15d-15, the Company carried out an evaluation, under the supervision and with the participation of management, including the Company’s Chief Executive Officer and Chief Financial Officer, of the effectiveness of the Company’s disclosure controls and procedures as of the end of the period covered by this report. Based on that evaluation, the Company’s Chief Executive Officer and Chief Financial Officer concluded that the Company’s disclosure controls and procedures were effective as of December 31, 2014 to provide reasonable assurance that information required to be disclosed in the Company’s reports filed or submitted under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms, and such information is accumulated and communicated to management, including the Company’s Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding disclosure. “Management’s Annual Report on Internal Control over Financial Reporting” appears on page 43 of this Annual Report on Form 10-K. There has been no change in the Company’s internal controls over financial reporting that occurred during the three months ended December 31, 2014 that has materially affected, or is reasonably likely to materially affect, the Company’s internal controls over financial reporting. None. Item 9. Changes in and Disagreements With Accountants on Accounting and Financial Disclosure Item 9A. Controls and Procedures Item 9B. Other Information 65