XML 44 R27.htm IDEA: XBRL DOCUMENT
v3.8.0.1

SELECTED QUARTERLY FINANCIAL INFORMATION (UNAUDITED) | 12 Months Ended
--- | ---
Dec. 31, 2017
SELECTED QUARTERLY FINANCIAL INFORMATION (UNAUDITED) |
19. | SELECTED QUARTERLY FINANCIAL INFORMATION (UNAUDITED)
Selected quarterly financial information for each of the quarters in the years ended December 31, 2017 and 2016 is as follows (in thousands, except per share data):
|  | March 31, 2017 |  |  | June 30, 2017 |  |  | September 30, 2017 |  |  | December 31, 2017 |
Revenue |  | $ | 445,684 |  |  | $ | 436,393 |  |  | $ | 442,845 |  |  | $ | 440,576 |
Operating income |  |  | 69,039 |  |  |  | 65,279 |  |  |  | 60,815 |  |  |  | 65,263 |
Net income |  |  | 50,047 |  |  |  | 45,475 |  |  |  | 41,178 |  |  | $ | 41,340 |
Basic earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 0.42 |  |  | $ | 0.38 |  |  | $ | 0.35 |  |  | $ | 0.35 |
Diluted earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 0.42 |  |  | $ | 0.38 |  |  | $ | 0.35 |  |  | $ | 0.35 |
|  | March 31, 2016 |  |  | June 30, 2016 |  |  | September 30, 2016 |  |  | December 31, 2016 |
Revenue |  | $ | 447,385 |  |  | $ | 463,331 |  |  | $ | 474,935 |  |  | $ | 464,134 |
Operating income |  |  | 64,928 |  |  |  | 77,176 |  |  |  | 73,953 |  |  |  | 80,359 |
Net income |  |  | 46,307 |  |  |  | 57,583 |  |  |  | 55,340 |  |  |  | 60,689 |
Basic earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 0.39 |  |  | $ | 0.49 |  |  | $ | 0.47 |  |  | $ | 0.52 |
Diluted earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 0.39 |  |  | $ | 0.49 |  |  | $ | 0.47 |  |  | $ | 0.52 |

X
- 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -URI http://asc.fasb.org/topic&trid=2126967 + Details
Name: | us-gaap_QuarterlyFinancialInformationTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration