XML 56 R42.htm IDEA: XBRL DOCUMENT
v3.6.0.2

SELECTED QUARTERLY FINANCIAL INFORMATION (UNAUDITED) (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2016
Schedule of Selected Quarterly Financial Information | Selected quarterly financial information for each of the quarters in the years ended December 31, 2016 and 2015 is as follows (in thousands, except per share data):
|  | 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 |
|  | March 31, 2015 |  |  | June 30, 2015 |  |  | September 30, 2015 |  |  | December 31, 2015 |
Revenue |  | $ | 426,000 |  |  | $ | 459,295 |  |  | $ | 459,957 |  |  | $ | 447,835 |
Operating income |  |  | 68,826 |  |  |  | 79,753 |  |  |  | 65,436 |  |  |  | 66,539 |
Net income |  |  | 57,277 |  |  |  | 65,303 |  |  |  | 50,676 |  |  |  | 48,598 |
Basic earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 0.49 |  |  | $ | 0.56 |  |  | $ | 0.43 |  |  | $ | 0.41 |
Diluted earnings per share: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net income |  | $ | 0.49 |  |  | $ | 0.55 |  |  | $ | 0.43 |  |  | $ | 0.41 |

X
- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=68076893&loc=d3e1280-108306 + Details
Name: | us-gaap_ScheduleOfQuarterlyFinancialInformationTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration