| | | Year Ended December 31, | | |||||||
| | | 2015 | | 2016 | | 2017 | | |||
| | | (Dollars in thousands) | | |||||||
| Current: | | | | | | | | | | |
| Federal | | $ | | | $ | | | $ | | |
| State | | | 249 | | | 229 | | | 63 | |
| | | | 249 | | | 229 | | | 63 | |
| Deferred: | | | | | | | | | | |
| Federal | | | 6,234 | | | 4,938 | | | (21,167) | |
| State | | | 212 | | | (595) | | | 234 | |
| | | | 6,446 | | | 4,343 | | | (20,933) | |
| Provision for (benefit from) income taxes | | $ | 6,695 | | $ | 4,572 | | $ | (20,870) | |
| | | As of December 31, | | ||||
| | | 2016 | | 2017 | | ||
| | | (Dollars in thousands) | | ||||
| Deferred tax assets: | | | | | | | |
| Financial statement accruals not currently deductible | | $ | 9,324 | | $ | 6,220 | |
| Net operating loss, AMT credit and other carryforwards | | | 71,215 | | | 55,720 | |
| State taxes | | | 87 | | | 103 | |
| Other | | | 740 | | | 2,191 | |
| Total deferred tax assets | | | 81,366 | | | 64,234 | |
| Valuation allowance for deferred tax assets | | | (4,487) | | | (6,154) | |
| Net deferred tax assets | | $ | 76,879 | | $ | 58,080 | |
| Deferred tax liabilities: | | | | | | | |
| Excess of net book value of property and equipment and software for financial reporting purposes over tax basis | | $ | 2,096 | | $ | 1,218 | |
| Excess of net book value of intangible assets for financial reporting purposes over tax basis | | | 128,988 | | | 89,898 | |
| Interest rate swap | | | (193) | | | | |
| Unrecognized tax benefits | | | | | | | |
| Other | | | | | | 45 | |
| Total deferred tax liabilities | | | 130,891 | | | 91,161 | |
| Net deferred tax liabilities | | $ | (54,012) | | $ | (33,081) | |
| | | As of December 31, | | ||||
| | | 2016 | | 2017 | | ||
| | | (Dollars in thousands) | | ||||
| Deferred income tax asset per balance sheet | | $ | 9,411 | | $ | 1,070 | |
| Deferred income tax liability per balance sheet | | | (63,423) | | | (34,151) | |
| | | $ | (54,012) | | $ | (33,081) | |
| | | Year Ended December 31, | | |||||||
| | | 2015 | | 2016 | | 2017 | | |||
| | | | | | | | | | | |
| | | (Dollars in thousands) | | |||||||
| Statutory federal income tax rate (at 35%) | | $ | 6,246 | | $ | 4,706 | | $ | 1,321 | |
| Effect of state taxes, net of federal | | | 458 | | | (486) | | | (1,207) | |
| Permanent items | | | 445 | | | 266 | | | 458 | |
| State rate change | | | 23 | | | (1,664) | | | (179) | |
| Valuation allowance | | | (181) | | | 1,763 | | | 1,667 | |
| Tax Cuts and Jobs Act of 2017 | | | | | | | | | (23,000) | |
| Other, net | | | (296) | | | (13) | | | 70 | |
| Provision for income taxes | | $ | 6,695 | | $ | 4,572 | | $ | (20,870) | |