Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (c)

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

-Publisher FASB

-Name Accounting Standards Codification

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-Section S99

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-Name Regulation S-X (SX)

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- Definition

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

+ References

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

-Publisher FASB

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-SubTopic 10

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- Definition

The other noncash expense, not otherwise specified in the taxonomy, charged against earnings in the period to allocate the cost of tangible and intangible assets over their remaining economic lives.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 360

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-Section 50

-Paragraph 1

-Subparagraph (a)

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

+ References

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

-Publisher FASB

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Fixed Assets (Details) (USD $)	12 Months Ended
Fixed Assets (Details) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Property, Plant and Equipment [Line Items]
Fixed assets	$ 52,356,000us-gaap_PropertyPlantAndEquipmentGross	$ 48,852,000us-gaap_PropertyPlantAndEquipmentGross
Less: Accumulated depreciation and amortization	(25,968,000)	(21,853,000)
Fixed assets, net	26,388,000us-gaap_PropertyPlantAndEquipmentNet	26,999,000us-gaap_PropertyPlantAndEquipmentNet
Depreciation and amortization	6,600,000	6,500,000	6,700,000
Telephone and computer equipment
Property, Plant and Equipment [Line Items]
Fixed assets	5,466,000	5,923,000
Computer software
Property, Plant and Equipment [Line Items]
Fixed assets	1,305,000	2,079,000
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Fixed assets	5,692,000	5,418,000
Leasehold improvements
Property, Plant and Equipment [Line Items]
Fixed assets	32,256,000	29,047,000
Assets acquired under capital leases-equipment
Property, Plant and Equipment [Line Items]
Fixed assets	7,637,000	6,337,000
Other
Property, Plant and Equipment [Line Items]
Fixed assets	0	48,000
Capitalized lease assets
Property, Plant and Equipment [Line Items]
Depreciation	$ 1,500,000	$ 1,300,000	$ 1,300,000