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Income Taxes - Other (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Jan. 01, 2018 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2016 | Dec. 31, 2017 | Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2017 | Jun. 30, 2016
Current: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Federal |  |  |  |  |  |  |  |  |  |  | $ 3,919 | $ 887 |  | $ 8,756
State |  |  |  |  |  |  |  |  |  |  | 1,988 | 774 |  | 3,153
Foreign |  |  |  |  |  |  |  |  |  |  | 920 | 1,444 |  | 552
Total current |  |  |  |  |  |  |  |  |  |  | 6,827 | 3,105 |  | 12,461
Deferred: |  |  |  |  |  |  |  |  |  |  |  |  |  |
Federal |  |  |  |  |  |  |  |  |  |  | 3,412 | (4,769) |  | (6,505)
State |  |  |  |  |  |  |  |  |  |  | 281 | 754 |  | (560)
Total deferred |  |  |  |  |  |  |  |  |  |  | 3,693 | (4,015) | $ (7,065) | (7,065)
Total income tax (benefit) expense |  | $ 662 | $ 5,842 | $ 9,074 | $ (5,058) | $ 959 | $ 6,935 | $ 564 | $ (9,368) |  | $ 10,520 | $ (910) | $ 5,396 | $ 5,396
Reconciliation to income tax at the statutory rate: |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Federal tax at statutory rates (as a percent) | 35.00% |  |  |  |  |  |  |  |  | 21.00% | 21.00% | 28.00% |  | 35.00%
Permanent items (as a percent) |  |  |  |  |  |  |  |  |  |  | 2.10% | 0.90% |  | 7.10%
Lobbying (as a percent) |  |  |  |  |  |  |  |  |  |  | 0.40% | 1.20% |  | 7.20%
State taxes, net of federal benefit (as a percent) |  |  |  |  |  |  |  |  |  |  | 4.30% | 3.10% |  | 19.50%
Research and development tax credits (as a percent) |  |  |  |  |  |  |  |  |  |  | (0.50%) |  |  | (8.20%)
Domestic production activities deduction (as a percent) |  |  |  |  |  |  |  |  |  |  |  | (0.10%) |  | (22.90%)
Change in valuation allowance (as a percent) |  |  |  |  |  |  |  |  |  |  | 0.20% | (7.20%) |  | 53.30%
Effects of foreign operations (as a percent) |  |  |  |  |  |  |  |  |  |  | 0.10% |  |  | 2.60%
Reserve for unrecognized tax benefits (as a percent) |  |  |  |  |  |  |  |  |  |  | (2.10%) | 0.90% |  | 3.30%
Noncontrolling Interests (as a percent) |  |  |  |  |  |  |  |  |  |  |  | 0.40% |  | 12.50%
Other (as a percent) |  |  |  |  |  |  |  |  |  |  | (0.40%) | (3.90%) |  | (0.10%)
Impact of federal tax rate reduction |  |  |  |  |  |  |  |  |  |  |  | (25.40%) |  |
Repatriation transition tax |  |  |  |  |  |  |  |  |  |  |  | 6.40% |  |
Stock-based compensation |  |  |  |  |  |  |  |  |  |  | (3.10%) | (7.70%) |  |
(Benefit) provision for income taxes |  |  |  |  |  |  |  |  |  |  | 22.00% | (3.40%) |  | 109.30%
Blended federal tax rate |  |  |  |  |  |  |  |  |  |  |  | 28.00% |  |

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