Identified Intangible Assets and Goodwill, Net (Tables)

12 Months Ended

Dec. 31, 2013

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]

The carrying amount of the identified intangibles and goodwill acquired in connection with our investments in businesses were as follows:

	Weighted-Average Amortization Period (Years)		December 31, 2013				December 31, 2012
			Carrying Amount		Accumulated Amortization		Carrying Amount		Accumulated Amortization
Amortized intangible assets:
Customer lists/relationships	4.3	years	$	14,168	$	11,137	$	14,378	$	10,319
Employment-related	5.9	years	5,603		5,446		5,430		5,082
Tradenames	4.3	years	4,405		3,634		4,528		3,267
Total			24,176		$	20,217	24,336		$	18,668
Less accumulated amortization			20,217				18,668
Identified intangibles, net			3,959				5,668
Unamortized intangible assets:
Goodwill	Not amortized		23,602				23,515
			$	27,561			$	29,183

Schedule of Goodwill [Table Text Block]

The changes in the carrying amounts of goodwill, by segment, for the year ended December 31, 2013 follow:

	Balance at January 1, 2013		Acquisitions		Translation and Other Adjustments		Balance at December 31, 2013
Utility Services	$	3,064	$	—	$	—	$	3,064
Residential and Commercial Services	20,451		—		87		20,538
Total	$	23,515	$	—	$	87	$	23,602

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

Estimated future aggregate amortization expense of intangible assets--The estimated aggregate amortization expense of intangible assets, as of December 31, 2013, in each of the next five years follows:

	Estimated Future Amortization Expense
Year ending December 31, 2014	$	1,330
2015	1,128
2016	915
2017	580
2018	6