XML 56 R37.htm IDEA: XBRL DOCUMENT
v3.20.1

Earnings per Share Earnings per Share (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2020
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] |
Schedule of Weighted Average Number of Shares [Table Text Block] | The following table summarizes the dilutive effect of RSUs and options to purchase common stock for the three months ended March 31, 2020 and 2019:
|  | Three months ended March 31,
|  | 2020 |  | 2019
Weighted average common shares—basic |  | 44,201,053 |  |  | 45,578,815 |
Dilutive effect of restricted stock units |  | 217,074 |  |  | 333,020 |
Dilutive effect of stock options |  | 52,345 |  |  | 80,347 |
Weighted average common shares—diluted |  | 44,470,472 |  |  | 45,992,182 |
In March 2020, the Company announced its Board of Directors had authorized the Company to increase the purchase of its common stock up to $250 million in the aggregate. The initial authorization, approved in November 2015, authorized up to $50 million in the aggregate of its common stock. In the three months ended March 31, 2020, the Company purchased 1,253,650 shares of its outstanding common stock for approximately $31.6 million. During the three months ended March 31, 2019, the Company purchased 24,900 shares of its outstanding common stock for approximately $0.7 million.

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_EarningsPerShareDilutedLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the weighted average number of shares used in calculating basic net earnings per share (or unit) and diluted earnings per share (or unit). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_ScheduleOfWeightedAverageNumberOfSharesTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration