Identified Intangible Assets and Goodwill, Net (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Acquired Finite-Lived Intangible Assets [Line Items]
Amortized intangible assets, carrying amount	$ 24,176	$ 24,336
Accumulated amortization	20,217	18,668
Identified intangibles, net	3,959	5,668
Goodwill	23,602	23,515
Intangible assets and goodwill net	27,561	29,183
Customer lists/relationships
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted-average amortization period (years)	4 years 4 months 3 days
Amortized intangible assets, carrying amount	14,168	14,378
Accumulated amortization	11,137	10,319
Employment-related
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted-average amortization period (years)	5 years 10 months 8 days
Amortized intangible assets, carrying amount	5,603	5,430
Accumulated amortization	5,446	5,082
Tradenames
Acquired Finite-Lived Intangible Assets [Line Items]
Weighted-average amortization period (years)	4 years 3 months 4 days
Amortized intangible assets, carrying amount	4,405	4,528
Accumulated amortization	$ 3,634	$ 3,267