Quarterly report pursuant to Section 13 or 15(d)

Segment Reporting - Revenues and Income from Operations for Reportable Segments (Detail)

v3.10.0.1
Segment Reporting - Revenues and Income from Operations for Reportable Segments (Detail) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
Revenues        
Revenue from Contract with Customer, Including Assessed Tax $ 243,839 $ 218,955 $ 697,588 $ 631,994
Segment income (loss) from operations        
Total income from operations 6,906 13,984 29,394 35,586
UNITED STATES        
Revenues        
Revenue from Contract with Customer, Including Assessed Tax 204,450 179,705 581,238 520,557
Segment income (loss) from operations        
Total income from operations 8,101 12,352 30,452 31,739
CANADA        
Revenues        
Revenue from Contract with Customer, Including Assessed Tax 37,422 37,430 110,574 106,292
Segment income (loss) from operations        
Total income from operations (1,514) 1,480 (1,671) 3,140
Other Segments [Member]        
Revenues        
Revenue from Contract with Customer, Including Assessed Tax 1,967 1,820 5,776 5,145
Segment income (loss) from operations        
Total income from operations $ 319 $ 152 $ 613 $ 707