Impairment of Long-lived Assets and Insurance Recoveries (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Impaired Long-Lived Assets Held and Used [Line Items]
Impairments related to long-lived assets	$ 36	$ 0
Leasehold Improvements [Member] | Acquisition Integration and Restructuring Expenses [Member]
Impaired Long-Lived Assets Held and Used [Line Items]
Impairments related to long-lived assets		65
Customer Relationships [Member] | Asia Pacific [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets	27
Trade Name [Member] | Asia Pacific [Member]
Finite-Lived Intangible Assets [Line Items]
Impairment of intangible assets	$ 9