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Property and Equipment (Tables)

12 Months Ended

Dec. 31, 2017

Property and Equipment [Abstract]

Composition of property and equipment

The composition of property and equipment as of December 31, 2016 and 2017 is as follows (in thousands):

								Estimated useful
		2016			2017			life (years)
Land		$	7,138		$	7,138		—
Buildings and improvements			19,238			19,304		5-40
Furniture, equipment, and computer hardware and software			157,104			169,613		5-10
Leasehold improvements			39,769			42,906		3-10
Construction in progress			7,006			5,103
			230,255			244,064
Accumulated depreciation and amortization			(157,131)			(170,301)
		$	73,124		$	73,763

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- References

No definition available.

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- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-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 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(13))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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