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 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Changes in contract liabilities        
Balance at Beginning of Period $ 3,741 $ 2,035 $ 2,746 $ 2,187
Additions 7,564 6,869 10,729 8,506
Deductions (4,702) (2,588) (6,872) (4,377)
Balance at End of Period 6,603 6,316 6,603 6,316
Contract assets 0 0 0 0
Revenue recognized included in contract liabilities at the beginning of the period $ 1,730 $ 947 $ 2,145 $ 1,414