$ IN THOUSANDS Q1-20 Q2-20 Q3-20 Q4-20 Q1-21 Q2-21 Q3-21 Q4-21 FY20 FY21 Net Income (loss) $
28,102 $ 11,464 $ (145) $ 109,800 $ 36,506 $ 24,359 $ 35,624 $ 5,088 $ 149,221 $ 101,577 Interest expense 19,930 18,012 15,609 14,988 15,672 19,170 16,546 14,986 68,539 66,374 Income tax expense (benefit) 13,409
21,164 (24,250) (118,306) 11,809 8,112 13,802 (986) (107,983) 32,737 Dep. and amort. expense 37,823 37,606 35,454 35,640 19,718 29,908 31,049 24,798 146,523 105,47 Restructuring and integration exp. 9,845
7,347 6,710 4,557 9,234 3,489 2,312 3,109 28,459 18,145 Transaction costs 6,534 3,232 4,913 6,320 10,546 5,440 3,987 5,086 20,999 25,059 Stock-based comp. (benefit) exp. (6,064) 580 1,289 1,300
1,971 1,921 2,340 1,862 (2,895) 8,094 Other components of net periodic pension cost (benefit) 201 936 30,175 10,924 (453) (272) (273) (13,831) 42,236 (14,829) Loss (gain) on remeasurement of indemnification asset
3,801 617 (540) 1,565 (844) (404) 1,247 5,443 (1) Impairment charges 98 18,132 1,184 5,497 3,611 — — 24,911 3,611 Other (900) (955) (1,105) (654) (70) 1,859 (2,624) 5,119 (3,614)
4,283 Adjusted EBITDA $ 112,779 $ 118,135 $ 69,294 $ 71,631 $ 104,933 $ 96,753 $ 102,359 $ 46,478 $ 371,839 $ 350,523 APPENDIX NON-GAAP FINANCIAL RECONCILIATION *Figures may not foot due to rounding.