CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
CONDENSED CONSOLIDATED STATEMENTS OF INCOME
Direct operating expenses, depreciation and amortization	$ 5,973	$ 7,334	$ 12,615	$ 14,794
Direct operating expenses, stock-based compensation expense (benefit)	373	761	(776)	1,443
Selling, general and administrative, depreciation and amortization	847	1,024	2,037	2,029
Selling, general and administrative, stock-based compensation expense	$ 879	$ 539	$ 521	$ 1,195

Direct operating amortization on intangible assets and depreciation of property, plant and equipment.

No definition available.

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- Definition

Represents the direct operating expense recognized during the period arising from share-based compensation arrangements with employees (for example, shares of stock, stock options, restricted stock units or other equity instruments) with employees.

+ References

No definition available.

+ Details

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- Definition

Represents the expense recognized during the period arising from selling, general and administrative share-based compensation arrangements (for example, shares of stock, stock options, restricted stock units or other equity instruments) with employees.

+ References

No definition available.

+ Details

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- Definition

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585

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