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Selected Quarterly Financial Data (Unaudited) | 12 Months Ended
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Dec. 31, 2018
Quarterly Financial Information Disclosure [Abstract] |
Selected Quarterly Financial Data (Unaudited) | (14) Selected Quarterly Financial Data (Unaudited) The following tables contain unaudited Statement of Operations information for each quarter of 2018 and 2017. During the fourth quarter of 2017, the Company estimated and recorded a one-time tax provision of $44.0 million as a result of the Tax Act. This tax provision was comprised of a $40.3 million Transition Tax and a $3.7 million charge related to the re-measurement of net deferred tax assets arising from the new lower corporate tax rate effected by the Tax Act. The Company subsequently recorded a measurement-period adjustment to reduce the Transition Tax by $3.1 million in the third quarter of 2018.
|  | Quarter Ended |  |  |  |  |
|  | March 31 |  |  | June 30 |  |  | September 30 |  |  | December 31 |  |  | Year |
|  | (in thousands, except per share data) |
2018 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 122,967 |  |  | $ | 120,602 |  |  | $ | 122,152 |  |  | $ | 131,917 |  |  | $ | 497,638 |
Gross profit |  | $ | 97,782 |  |  | $ | 95,562 |  |  | $ | 98,763 |  |  | $ | 106,032 |  |  | $ | 398,139 |
Net income |  | $ | 1,673 |  |  | $ | 4,828 |  |  | $ | 12,699 |  |  | $ | 3,301 |  |  | $ | 22,501 |
Earnings per share:(1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 0.15 |  |  | $ | 0.42 |  |  | $ | 1.11 |  |  | $ | 0.30 |  |  | $ | 1.98 |
Diluted |  | $ | 0.15 |  |  | $ | 0.42 |  |  | $ | 1.10 |  |  | $ | 0.30 |  |  | $ | 1.97 |
|  | Quarter Ended |  |  |  |  |
|  | March 31 |  |  | June 30 |  |  | September 30 |  |  | December 31 |  |  | Year |
|  | (in thousands, except per share data) |
2017 (as adjusted) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 122,232 |  |  | $ | 119,220 |  |  | $ | 126,010 |  |  | $ | 136,381 |  |  | $ | 503,843 |
Gross profit |  | $ | 99,100 |  |  | $ | 94,845 |  |  | $ | 101,621 |  |  | $ | 111,628 |  |  | $ | 407,194 |
Net income (loss) |  | $ | 15,557 |  |  | $ | 9,953 |  |  | $ | 18,184 |  |  | $ | (25,499 | ) |  | $ | 18,195 |
Earnings (loss) per share:(1) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | 1.36 |  |  | $ | 0.87 |  |  | $ | 1.59 |  |  | $ | (2.23 | ) |  | $ | 1.59 |
Diluted |  | $ | 1.34 |  |  | $ | 0.86 |  |  | $ | 1.58 |  |  | $ | (2.23 | ) |  | $ | 1.58 |
(1) | The sum of the basic and diluted earnings (loss) per share for the four quarters may differ from annual earnings per share as the weighted-average shares outstanding are computed independently for each of the quarters presented.

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- Definition The entire disclosure for quarterly financial data. Includes, but is not limited to, tabular presentation of financial information for fiscal quarters, effect of year-end adjustments, and an explanation of matters or transactions that affect comparability of the information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
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