| 162.7 | 89.3 | 26.2 | 71 | 29.9 | -10.1 | | | | | | |
| | | | | | | | | | | | |
Depreciation & Amortization | 3.9 | 3.9 | 4 | 4.2 | 4 | 3.8 | | | | | | |
Depreciation and Amortization | | | | | | | | | | | | |
| 83.5 | 89.1 | 85.4 | 85.1 | 74.8 | 64.3 | | | | | | |
Stock-Based Compensation Expense | | | | | | | | | | | | |
| -4.5 | -5.1 | -7.6 | -11.6 | -15.6 | -9.9 | | | | | | |
Non-Cash Operating Lease Cost | | | | | | | | | | | | |
Amortization of Premium (Accretion of Discount) on Marketable Securities, Net | | | | | | | | | | | | |
| | | | | | | | | | | | |
Changes in Trade Receivables | -81 | -81.1 | 23.4 | -65.4 | -44.1 | -24.8 | | | | | | |
| | | | | | | | | | | | |
Changes in Accounts Payable | 8 | 20 | -1 | -17.1 | 0.4 | 18.2 | | | | | | |
| | | | | | | | | | | | |
Changes in Accrued Expenses | 11.7 | 6.2 | 16.1 | 31.1 | 15.3 | -6 | | | | | | |
Accrued Expenses and Other Liabilities | | | | | | | | | | | | |
Changes in Other Operating Activities | 0.9 | -10.9 | -18.8 | -7.4 | 7 | -7.1 | | | | | | |
Prepaid Expenses and Other Assets | | | | | | | | | | | | |
Operating Lease Right-of-Use Assets and Liabilities | | | | | | | | | | | | |
Cash from Operating Activities | 185.2 | 111.3 | 127.6 | 90 | 71.6 | 28.4 | | | | | | |
Net Cash Provided by Operating Activities | | | | | | | | | | | | |