Quarterly report pursuant to Section 13 or 15(d)

Revenue Recognition (Contract Balances) (Details)

v3.21.2
Revenue Recognition (Contract Balances) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Changes in contract liabilities        
Balance at Beginning of Period $ 6,603 $ 6,316 $ 2,746 $ 2,187
Additions 4,660 3,500 15,389 12,006
Deductions (7,767) (5,620) (14,639) (9,997)
Balance at End of Period 3,496 4,196 3,496 4,196
Contract assets 0 0 0 0
Revenue recognized included in contract liabilities at the beginning of the period $ 601 $ 773 $ 2,746 $ 2,187