Unaudited Consolidated Statements of Changes in Stockholders' Equity / Members' Interest - USD ($) $ in Thousands |
Total |
Summit Materials, LLC |
Common Class A |
Common Class B |
Members' equity
Summit Materials, LLC
|
Accumulated Earnings (Deficit) |
Accumulated Earnings (Deficit)
Summit Materials, LLC
|
Accumulated other comprehensive income (loss) |
Accumulated other comprehensive income (loss)
Summit Materials, LLC
|
Common Stock
Common Class A
|
Common Stock
Common Class B
|
Additional Paid-in Capital |
Noncontrolling Interest In Summit Holdings |
Beginning balance at Dec. 28, 2019 |
$ 1,444,773
|
|
|
|
|
$ 188,805
|
|
$ 3,448
|
$ (20,971)
|
$ 1,134
|
$ 0
|
$ 1,234,020
|
$ 17,366
|
Beginning balance at Dec. 28, 2019 |
|
$ 1,513,150
|
|
|
$ 1,432,718
|
|
$ 101,403
|
|
(20,971)
|
|
|
|
|
Beginning balance (in shares) at Dec. 28, 2019 |
|
|
113,309,385
|
|
|
|
|
|
|
113,309,385
|
99
|
|
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Net contributed capital |
|
310
|
|
|
310
|
|
|
|
|
|
|
|
|
Net (loss) income |
(46,726)
|
(63,625)
|
|
|
|
(44,979)
|
(63,625)
|
|
|
|
|
|
(1,747)
|
LP Unit exchanges (in shares) |
|
|
|
|
|
|
|
|
|
196,542
|
|
|
|
LP Unit exchanges |
0
|
|
|
|
|
|
|
|
|
$ 2
|
|
1,132
|
(1,134)
|
Other comprehensive (loss) income, net of tax |
(6,313)
|
(8,359)
|
|
|
|
|
|
(6,093)
|
(8,359)
|
|
|
|
(220)
|
Distributions |
|
(2,500)
|
|
|
(2,500)
|
|
|
|
|
|
|
|
|
Stock option exercises (in shares) |
|
|
|
|
|
|
|
|
|
13,335
|
|
|
|
Stock option exercises |
310
|
|
|
|
|
|
|
|
|
$ 0
|
|
310
|
|
Share-based compensation |
4,905
|
4,905
|
|
|
4,905
|
|
|
|
|
|
|
4,905
|
|
Shares redeemed to settle taxes and other (in shares) |
|
|
|
|
|
|
|
|
|
591,335
|
|
|
|
Shares redeemed to settle taxes and other |
(1,090)
|
(908)
|
|
|
(908)
|
|
|
|
|
$ 6
|
|
(1,096)
|
|
Ending balance at Mar. 28, 2020 |
1,395,859
|
|
|
|
|
143,826
|
|
(2,645)
|
|
$ 1,142
|
$ 0
|
1,239,271
|
14,265
|
Ending balance at Mar. 28, 2020 |
|
1,442,973
|
|
|
1,434,525
|
|
37,778
|
|
(29,330)
|
|
|
|
|
Ending balance (in shares) at Mar. 28, 2020 |
|
|
|
|
|
|
|
|
|
114,110,597
|
99
|
|
|
Beginning balance at Dec. 28, 2019 |
1,444,773
|
|
|
|
|
188,805
|
|
3,448
|
(20,971)
|
$ 1,134
|
$ 0
|
1,234,020
|
17,366
|
Beginning balance at Dec. 28, 2019 |
|
1,513,150
|
|
|
1,432,718
|
|
101,403
|
|
(20,971)
|
|
|
|
|
Beginning balance (in shares) at Dec. 28, 2019 |
|
|
113,309,385
|
|
|
|
|
|
|
113,309,385
|
99
|
|
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Net (loss) income |
12,161
|
6,392
|
|
|
|
|
|
|
|
|
|
|
|
LP Unit exchanges (in shares) |
|
|
196,542
|
|
|
|
|
|
|
|
|
|
|
Other comprehensive (loss) income, net of tax |
(4,088)
|
|
|
|
|
|
|
|
|
|
|
|
|
Stock option exercises (in shares) |
|
|
13,335
|
|
|
|
|
|
|
|
|
|
|
Shares redeemed to settle taxes and other (in shares) |
|
|
592,686
|
|
|
|
|
|
|
|
|
|
|
Ending balance at Jun. 27, 2020 |
1,461,863
|
|
|
|
|
200,890
|
|
(497)
|
(26,384)
|
$ 1,142
|
$ 0
|
1,244,163
|
16,165
|
Ending balance at Jun. 27, 2020 |
|
1,520,828
|
|
|
1,439,417
|
|
107,795
|
|
(26,384)
|
|
|
|
|
Ending balance (in shares) at Jun. 27, 2020 |
|
|
114,111,948
|
|
|
|
|
|
|
114,111,948
|
99
|
|
|
Beginning balance at Mar. 28, 2020 |
1,395,859
|
|
|
|
|
143,826
|
|
(2,645)
|
|
$ 1,142
|
$ 0
|
1,239,271
|
14,265
|
Beginning balance at Mar. 28, 2020 |
|
1,442,973
|
|
|
1,434,525
|
|
37,778
|
|
(29,330)
|
|
|
|
|
Beginning balance (in shares) at Mar. 28, 2020 |
|
|
|
|
|
|
|
|
|
114,110,597
|
99
|
|
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Net (loss) income |
58,887
|
70,017
|
|
|
|
57,064
|
70,017
|
|
|
|
|
|
1,823
|
Other comprehensive (loss) income, net of tax |
2,225
|
2,946
|
|
|
|
|
|
2,148
|
2,946
|
|
|
|
77
|
Share-based compensation |
4,892
|
4,892
|
|
|
4,892
|
|
|
|
|
|
|
4,892
|
|
Shares redeemed to settle taxes and other (in shares) |
|
|
|
|
|
|
|
|
|
1,351
|
|
|
|
Shares redeemed to settle taxes and other |
0
|
|
|
|
|
|
|
|
|
$ 0
|
|
0
|
0
|
Ending balance at Jun. 27, 2020 |
1,461,863
|
|
|
|
|
200,890
|
|
(497)
|
(26,384)
|
$ 1,142
|
$ 0
|
1,244,163
|
16,165
|
Ending balance at Jun. 27, 2020 |
|
1,520,828
|
|
|
1,439,417
|
|
107,795
|
|
(26,384)
|
|
|
|
|
Ending balance (in shares) at Jun. 27, 2020 |
|
|
114,111,948
|
|
|
|
|
|
|
114,111,948
|
99
|
|
|
Beginning balance at Jan. 02, 2021 |
1,616,268
|
|
|
|
|
326,772
|
|
5,203
|
(18,583)
|
$ 1,145
|
$ 0
|
1,264,681
|
18,467
|
Beginning balance at Jan. 02, 2021 |
|
1,662,768
|
|
|
1,459,211
|
|
222,140
|
|
(18,583)
|
|
|
|
|
Beginning balance (in shares) at Jan. 02, 2021 |
|
|
114,390,595
|
99
|
|
|
|
|
|
114,390,595
|
99
|
|
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Net contributed capital |
|
15,920
|
|
|
15,920
|
|
|
|
|
|
|
|
|
Net (loss) income |
(23,245)
|
(27,790)
|
|
|
|
(22,517)
|
(27,790)
|
|
|
|
|
|
(728)
|
LP Unit exchanges (in shares) |
|
|
|
|
|
|
|
|
|
711,794
|
|
|
|
LP Unit exchanges |
0
|
|
|
|
|
|
|
|
|
$ 7
|
|
4,744
|
(4,751)
|
Other comprehensive (loss) income, net of tax |
1,680
|
2,126
|
|
|
|
|
|
1,635
|
2,126
|
|
|
|
45
|
Distributions |
|
(2,500)
|
|
|
(2,500)
|
|
|
|
|
|
|
|
|
Stock option exercises (in shares) |
|
|
|
|
|
|
|
|
|
863,338
|
|
|
|
Stock option exercises |
15,920
|
|
|
|
|
|
|
|
|
$ 9
|
|
15,911
|
|
Share-based compensation |
5,363
|
5,363
|
|
|
5,363
|
|
|
|
|
|
|
5,363
|
|
Shares redeemed to settle taxes and other (in shares) |
|
|
|
|
|
|
|
|
|
678,605
|
|
|
|
Shares redeemed to settle taxes and other |
(1,426)
|
(416)
|
|
|
(416)
|
|
|
|
|
$ 6
|
|
(1,432)
|
|
Ending balance at Apr. 03, 2021 |
1,614,560
|
|
|
|
|
304,255
|
|
6,838
|
|
$ 1,167
|
$ 0
|
1,289,267
|
13,033
|
Ending balance at Apr. 03, 2021 |
|
1,655,471
|
|
|
1,477,578
|
|
194,350
|
|
(16,457)
|
|
|
|
|
Ending balance (in shares) at Apr. 03, 2021 |
|
|
|
|
|
|
|
|
|
116,644,332
|
99
|
|
|
Beginning balance at Jan. 02, 2021 |
1,616,268
|
|
|
|
|
326,772
|
|
5,203
|
(18,583)
|
$ 1,145
|
$ 0
|
1,264,681
|
18,467
|
Beginning balance at Jan. 02, 2021 |
|
1,662,768
|
|
|
1,459,211
|
|
222,140
|
|
(18,583)
|
|
|
|
|
Beginning balance (in shares) at Jan. 02, 2021 |
|
|
114,390,595
|
99
|
|
|
|
|
|
114,390,595
|
99
|
|
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Net (loss) income |
34,513
|
42,025
|
|
|
|
|
|
|
|
|
|
|
|
LP Unit exchanges (in shares) |
|
|
1,157,334
|
|
|
|
|
|
|
|
|
|
|
Other comprehensive (loss) income, net of tax |
3,759
|
|
|
|
|
|
|
|
|
|
|
|
|
Stock option exercises (in shares) |
|
|
1,710,818
|
|
|
|
|
|
|
|
|
|
|
Shares redeemed to settle taxes and other (in shares) |
|
|
697,141
|
|
|
|
|
|
|
|
|
|
|
Ending balance at Jul. 03, 2021 |
1,694,922
|
|
|
|
|
360,914
|
|
8,866
|
(13,825)
|
$ 1,180
|
$ 0
|
1,313,414
|
10,548
|
Ending balance at Jul. 03, 2021 |
|
1,748,591
|
|
|
1,498,251
|
|
264,165
|
|
(13,825)
|
|
|
|
|
Ending balance (in shares) at Jul. 03, 2021 |
|
|
117,955,888
|
99
|
|
|
|
|
|
117,955,888
|
99
|
|
|
Beginning balance at Apr. 03, 2021 |
1,614,560
|
|
|
|
|
304,255
|
|
6,838
|
|
$ 1,167
|
$ 0
|
1,289,267
|
13,033
|
Beginning balance at Apr. 03, 2021 |
|
1,655,471
|
|
|
1,477,578
|
|
194,350
|
|
(16,457)
|
|
|
|
|
Beginning balance (in shares) at Apr. 03, 2021 |
|
|
|
|
|
|
|
|
|
116,644,332
|
99
|
|
|
Increase (Decrease) in Stockholders' Equity [Roll Forward] |
|
|
|
|
|
|
|
|
|
|
|
|
|
Net contributed capital |
|
15,846
|
|
|
15,846
|
|
|
|
|
|
|
|
|
Net (loss) income |
57,758
|
69,815
|
|
|
|
56,659
|
69,815
|
|
|
|
|
|
1,099
|
LP Unit exchanges (in shares) |
|
|
|
|
|
|
|
|
|
445,540
|
|
|
|
LP Unit exchanges |
0
|
|
|
|
|
|
|
|
|
$ 4
|
|
3,631
|
(3,635)
|
Other comprehensive (loss) income, net of tax |
2,079
|
2,632
|
|
|
|
|
|
2,028
|
2,632
|
|
|
|
51
|
Stock option exercises (in shares) |
|
|
|
|
|
|
|
|
|
847,480
|
|
|
|
Stock option exercises |
15,845
|
|
|
|
|
|
|
|
|
$ 8
|
|
15,837
|
|
Share-based compensation |
4,827
|
4,827
|
|
|
4,827
|
|
|
|
|
|
|
4,827
|
|
Shares redeemed to settle taxes and other (in shares) |
|
|
|
|
|
|
|
|
|
18,536
|
|
|
|
Shares redeemed to settle taxes and other |
(147)
|
|
|
|
|
|
|
|
|
$ 1
|
|
(148)
|
|
Ending balance at Jul. 03, 2021 |
$ 1,694,922
|
|
|
|
|
$ 360,914
|
|
$ 8,866
|
(13,825)
|
$ 1,180
|
$ 0
|
$ 1,313,414
|
$ 10,548
|
Ending balance at Jul. 03, 2021 |
|
$ 1,748,591
|
|
|
$ 1,498,251
|
|
$ 264,165
|
|
$ (13,825)
|
|
|
|
|
Ending balance (in shares) at Jul. 03, 2021 |
|
|
117,955,888
|
99
|
|
|
|
|
|
117,955,888
|
99
|
|
|