Income Taxes (Details 1) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Current deferred income tax assets:
Accounts receivable	$ 7,977	$ 6,598
State taxes	2,632us-gaap_DeferredTaxAssetsStateTaxes	3,927us-gaap_DeferredTaxAssetsStateTaxes
Other liabilities and reserves	21,878	14,298
Other assets	1,367us-gaap_DeferredTaxAssetsOther	7,042us-gaap_DeferredTaxAssetsOther
Inventory	1,271us-gaap_DeferredTaxAssetsInventory	1,547us-gaap_DeferredTaxAssetsInventory
Valuation allowance	(4,794)	(4,394)
Total current deferred income tax assets	30,331	29,018
Non-current deferred income tax (liabilities) assets:
Net operating loss carryforwards	27,610	28,111
Other assets	32,239	37,494
Intangible assets	(138,214)	(128,584)
Property and equipment	(22,753)	(27,014)
Unrealized loss on investments	(3)	0
Share-based compensation	6,615	6,307
Valuation allowance	(8,996)	(9,396)
Total non-current deferred income tax (liabilities), net	$ (103,502)	$ (93,082)

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from inventory.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 6

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32621-109319

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 25

-Paragraph 20

-URI http://asc.fasb.org/extlink&oid=29652012&loc=d3e28680-109314

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 740

-SubTopic 10

-Section 50

-Paragraph 8

-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32632-109319