Quarterly report pursuant to Section 13 or 15(d)

Business Segment Information (Details)

v3.2.0.727
Business Segment Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Segment Reporting Information [Line Items]        
Revenues $ 152,489 $ 142,558 $ 267,922 $ 243,289
Interest income 11 11 162 24
Interest expense 1,258 766 2,535 1,947
Depreciation and amortization of intangible assets 5,219 5,208 10,446 10,013
Income (loss) before taxes, excluding unallocated corporate activity 10,625 9,921 10,048 9,472
Operating Segments | U.S. Regions        
Segment Reporting Information [Line Items]        
Revenues 73,379 61,814 120,480 101,646
Interest income 0 0 0 0
Interest expense 0 0 0 0
Depreciation and amortization of intangible assets 214 333 492 647
Income (loss) before taxes, excluding unallocated corporate activity 5,779 5,733 7,248 5,278
Operating Segments | U.S. Federal        
Segment Reporting Information [Line Items]        
Revenues 30,437 26,084 54,580 38,657
Interest income 0 0 0 0
Interest expense 0 0 0 0
Depreciation and amortization of intangible assets 302 292 608 564
Income (loss) before taxes, excluding unallocated corporate activity 5,044 2,850 8,302 3,589
Operating Segments | Canada        
Segment Reporting Information [Line Items]        
Revenues 13,837 19,768 24,732 36,067
Interest income 2 0 3 1
Interest expense 282 258 611 670
Depreciation and amortization of intangible assets 282 414 525 820
Income (loss) before taxes, excluding unallocated corporate activity (570) (1,688) (5,578) (3,047)
Operating Segments | Small-Scale Infrastructure        
Segment Reporting Information [Line Items]        
Revenues 14,516 14,206 27,378 25,355
Interest income 9 11 159 23
Interest expense 976 508 1,924 1,277
Depreciation and amortization of intangible assets 3,401 3,289 6,791 6,247
Income (loss) before taxes, excluding unallocated corporate activity 2,724 3,143 3,627 3,815
Operating Segments | Other        
Segment Reporting Information [Line Items]        
Revenues 20,320 20,686 40,752 41,564
Interest income 0 0 0 0
Interest expense 0 0 0 0
Depreciation and amortization of intangible assets 1,020 880 2,030 1,735
Income (loss) before taxes, excluding unallocated corporate activity (2,352) (117) (3,551) (163)
Consolidation, Eliminations        
Segment Reporting Information [Line Items]        
Unallocated corporate activity (6,888) (6,935) (13,401) (15,003)
Consolidation, Eliminations | U.S. Regions        
Segment Reporting Information [Line Items]        
Unallocated corporate activity 0 0 0 0
Consolidation, Eliminations | U.S. Federal        
Segment Reporting Information [Line Items]        
Unallocated corporate activity 0 0 0 0
Consolidation, Eliminations | Canada        
Segment Reporting Information [Line Items]        
Unallocated corporate activity 0 0 0 0
Consolidation, Eliminations | Small-Scale Infrastructure        
Segment Reporting Information [Line Items]        
Unallocated corporate activity 0 0 0 0
Consolidation, Eliminations | Other        
Segment Reporting Information [Line Items]        
Unallocated corporate activity $ 0 $ 0 $ 0 $ 0