| Dec 31,
2011 | Dec 31,
2012 | Dec 31,
2013 | Dec 31,
2014 | Dec 31,
2015 | Dec 31,
2016 | Dec 31,
2017 | Dec 31,
2018 | Dec 31,
2019 | Dec 31,
2020 | Dec 31,
2021 | Dec 31,
2022 | Dec 31,
2023 |
|---|
| Net income | 11 | 16 | 21 | 23 | 23 | 20 | 19 | 25 | 37 | 30 | 52 | 104 | 99 |
|---|
| Depreciation | 2 | 2 | 3 | 4 | 4 | 5 | 5 | 4 | 4 | 5 | 6 | 9 | 9 |
|---|
| Amortization | 6 | 8 | 8 | 14 | 14 | 13 | 15 | 16 | 16 | 23 | 24 | 25 | 21 |
|---|
| Loss on extinguishment of debt | - | - | - | - | - | - | - | - | - | -5 | -29 | - | - |
|---|
| Deferred income taxes | - | - | - | - | - | - | - | - | - | - | -13 | -8 | -11 |
|---|
| Share-Based Payment Arrangement, Noncash Expense | 9 | 10 | 11 | 13 | 13 | 14 | 14 | 16 | 17 | 19 | 22 | 24 | 28 |
|---|
| Amortization of debt issuance costs and discounts | - | - | - | - | - | - | - | 1 | 5 | 7 | 11 | 2 | 3 |
|---|
| Adjustment to fair value of contingent consideration for purchase of business | - | - | - | - | 0 | -2 | 3 | 2 | 0 | 10 | 0 | 0 | -6 |
|---|
| Other | - | - | - | - | - | - | - | - | - | - | - | -0 | - |
|---|
| Accounts receivable | 8 | 1 | -1 | 27 | -4 | -17 | 3 | 0 | 3 | -8 | 34 | 17 | -24 |
|---|
| Other assets | 0 | -1 | 0 | -5 | 0 | 0 | 2 | 2 | 8 | -2 | 3 | 7 | -1 |
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| Accounts payable | -2 | 2 | -0 | 14 | -3 | -0 | 5 | 1 | -1 | 1 | 0 | -3 | -6 |
|---|
| Other liabilities | -5 | 2 | 3 | -9 | -10 | -8 | 3 | 5 | 8 | 10 | -8 | -11 | -17 |
|---|
| Net cash provided by operating activities | 14 | 39 | 47 | 34 | 45 | - | 55 | 69 | 78 | 118 | 85 | 118 | 143 |
|---|
| Purchase of property and equipment | 3 | 2 | 5 | 4 | 3 | 4 | 3 | 4 | 8 | 5 | 9 | 9 | 4 |
|---|
| Capitalization of internally developed software costs | - | - | - | - | - | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
|---|
| Purchase of businesses, net of cash acquired | 19 | 37 | 38 | 46 | 38 | 7 | 38 | 27 | 11 | 92 | 109 | 72 | 0 |
|---|
| Net cash used in investing activities | -9 | -39 | -46 | -54 | -42 | - | -42 | -31 | -20 | -99 | -119 | -82 | -6 |
|---|
| Proceeds from Convertible Debt | - | - | - | - | - | - | - | 144 | - | 230 | 380 | - | - |
|---|
| Payment for convertible notes issuance costs | - | - | - | - | - | - | 0 | 5 | - | 7 | 11 | - | - |
|---|
| Purchase of hedges related to issuance of convertible notes | - | - | - | - | - | - | - | 21 | - | 49 | 66 | - | - |
|---|
| Proceeds from Issuance of Warrants | - | - | - | - | - | - | - | 12 | - | 22 | 23 | - | - |
|---|
| Payments for repurchase of convertible notes | - | - | - | - | - | - | - | - | - | 180 | 369 | 0 | - |
|---|
| Proceeds from Sale of Derivatives Related to Convertible Notes | - | - | - | - | - | - | - | - | - | 50 | 381 | 0 | - |
|---|
| Repurchase of warrants related to repurchase of convertible notes | - | - | - | - | - | - | - | - | - | 43 | 304 | - | - |
|---|
| Payment for credit facility financing fees | - | - | - | - | - | - | - | - | - | - | 1 | - | 1 |
|---|
| Proceeds from line of credit | - | 135 | 181 | 265 | 267 | 209 | 275 | 161 | - | 28 | 74 | 69 | - |
|---|
| Payments on line of credit | - | 132 | 165 | 230 | 265 | 233 | 252 | 216 | - | 28 | 74 | 69 | - |
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| Payment of contingent consideration for purchase of business | - | - | - | - | - | - | - | - | 4 | 3 | 24 | - | 22 |
|---|
| Proceeds from the sale of stock through the Employee Stock Purchase Plan | - | - | - | - | - | - | - | 0 | 0 | 0 | 1 | 1 | 1 |
|---|
| Purchases of treasury stock | 12 | 6 | 14 | 8 | 3 | 18 | 33 | 64 | 21 | 20 | 22 | 18 | 11 |
|---|
| Remittance of taxes withheld as part of a net share settlement of restricted stock vesting | -1 | -2 | -4 | -7 | -5 | -4 | -4 | -5 | -7 | -8 | -13 | -12 | -7 |
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| Net cash used in financing activities | -9 | -4 | 1 | 24 | -4 | - | -17 | 2 | -32 | -7 | -24 | -29 | -40 |
|---|
| Effect of exchange rate on cash, cash equivalents and restricted cash | - | - | - | - | - | - | - | - | - | 1 | -1 | -2 | 1 |
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| Change in cash, cash equivalents and restricted cash | - | - | - | - | - | - | - | - | - | 12 | -59 | 6 | 99 |
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| Income Taxes Paid, Net | 8 | 10 | 8 | 11 | 10 | 5 | 9 | 5 | 7 | 5 | 16 | 40 | 47 |
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| Cash paid for interest | - | - | - | - | - | - | 2 | 1 | 4 | 3 | 4 | 1 | 1 |
|---|
| Stock issued for purchase of businesses (stock reacquired for escrow claim) | - | - | - | - | - | - | 9 | 5 | 1 | 9 | 6 | 7 | 0 |
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| Restricted Stock Award, Forfeitures | - | - | - | - | - | 1 | 1 | 0 | - | - | 243 | - | - |
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| Capital Expenditures Incurred but Not yet Paid | - | - | - | - | - | 2 | - | - | 2 | 1 | 0 | 4 | 0 |
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