XML 24 R12.htm IDEA: XBRL DOCUMENT
v3.10.0.1

REPURCHASES OF COMMON STOCK | 9 Months Ended
--- | ---
Sep. 30, 2018
REPURCHASES OF COMMON STOCK [Abstract] |
REPURCHASES OF COMMON STOCK |
5. | REPURCHASES OF COMMON STOCK
During the three-month periods ended September 30, 2018 and 2017, the Company repurchased 0.2 million and 0.4 million shares of its Class A common stock under its open market stock repurchase plans for $12.4 million and $25.7 million, respectively. During the nine-month periods ended September 30, 2018 and September 30, 2017, the Company repurchased 0.6 million and 0.8 million shares of its Class A common stock under its open market repurchase plans for $48.2 million and $47.8 million, respectively. In July 2018, the previous stock repurchase plan was terminated and replaced by a new repurchase plan with an initial authorization amount of $500 million. As of September 30, 2018, $492.4 million was available for repurchases under the Company’s open market stock repurchase plan.

X
- References No definition available. + Details
Name: | us-gaap_EquityAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 + Details
Name: | us-gaap_StockholdersEquityNoteDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration