Quarterly report pursuant to Section 13 or 15(d)

Business Segment Information (Details)

v3.19.2
Business Segment Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Segment Reporting Information [Line Items]        
Revenues $ 198,183 $ 196,982 $ 348,295 $ 364,392
Interest income 81 77 214 133
Interest expense 3,380 3,235 6,188 6,232
Depreciation and amortization of intangible assets 9,647 7,053 18,485 13,787
Income (loss) before taxes, excluding unallocated corporate activity 18,152 17,760 29,288 29,355
U.S. Regions        
Segment Reporting Information [Line Items]        
Revenues 88,220 88,778 143,817 163,469
U.S. Federal        
Segment Reporting Information [Line Items]        
Revenues 55,022 58,214 98,079 105,999
Canada        
Segment Reporting Information [Line Items]        
Revenues 7,883 7,958 15,031 16,862
Non-Solar DG        
Segment Reporting Information [Line Items]        
Revenues 23,265 19,921 44,495 38,038
All Other        
Segment Reporting Information [Line Items]        
Revenues 23,793 22,111 46,873 40,024
Operating Segments | U.S. Regions        
Segment Reporting Information [Line Items]        
Revenues 88,220 88,778 143,817 163,469
Interest income 0 2 63 3
Interest expense 1,713 1,031 2,570 2,222
Depreciation and amortization of intangible assets 2,464 1,377 4,646 2,707
Income (loss) before taxes, excluding unallocated corporate activity 2,458 4,732 2,180 9,350
Operating Segments | U.S. Federal        
Segment Reporting Information [Line Items]        
Revenues 55,022 58,214 98,079 105,999
Interest income 19 28 68 48
Interest expense 208 247 418 488
Depreciation and amortization of intangible assets 806 661 1,623 1,333
Income (loss) before taxes, excluding unallocated corporate activity 10,043 10,078 15,664 15,895
Operating Segments | Canada        
Segment Reporting Information [Line Items]        
Revenues 7,883 7,958 15,031 16,862
Interest income 0 0 0 0
Interest expense 174 477 338 961
Depreciation and amortization of intangible assets 315 290 590 579
Income (loss) before taxes, excluding unallocated corporate activity 241 (285) (48) (2,647)
Operating Segments | Non-Solar DG        
Segment Reporting Information [Line Items]        
Revenues 23,265 19,921 44,495 38,038
Interest income 23 47 44 82
Interest expense 1,285 1,467 2,862 2,548
Depreciation and amortization of intangible assets 5,686 4,348 10,902 8,412
Income (loss) before taxes, excluding unallocated corporate activity 3,400 2,335 4,781 4,945
Operating Segments | All Other        
Segment Reporting Information [Line Items]        
Revenues 23,793 22,111 46,873 40,024
Interest income 39 0 39 0
Interest expense 0 13 0 13
Depreciation and amortization of intangible assets 376 377 724 756
Income (loss) before taxes, excluding unallocated corporate activity 2,010 900 6,711 1,812
Unallocated corporate activity        
Segment Reporting Information [Line Items]        
Unallocated corporate activity $ (8,841) $ (7,751) $ (16,849) $ (14,621)