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v3.19.1

Nature of Business Prior Year Restated (Details) - USD ($) $ / shares in Units, $ in Thousands | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Mar. 31, 2019 | Mar. 31, 2018 | Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018 | Sep. 30, 2018 | Dec. 31, 2017 | Sep. 30, 2017
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |  |  |  |
Accounts receivable, net |  | $ 271,632 |  | $ 271,632 |  |  | $ 266,742 |  |
Deferred income taxes |  | 13,678 |  | 13,678 |  |  | 13,805 |  |
Other assets |  | 39,965 |  | 39,965 |  |  | 36,254 |  |
Other accrued liabilities |  | 28,747 |  | 28,747 |  |  | 31,025 |  |
Deferred revenue |  | 106,275 |  | 106,275 |  |  | 103,335 |  |
Stockholders’ equity |  | 247,478 | $ 414,823 | 247,478 | $ 414,823 | $ 227,895 | 287,437 | $ 430,868 | $ 466,183
Revenues |  | 278,234 | 256,260 | 540,490 | 488,621 |  |  |  |
Cost of revenues | [1] | 85,568 | 79,493 | 161,634 | 153,925 |  |  |  |
Selling, general and administrative | [1] | 104,930 | 96,125 | 205,188 | 186,467 |  |  |  |
Provision for income taxes |  | 6,593 | 7,993 | 3,742 | 5,992 |  |  |  |
Net income |  | 33,381 | 31,169 | 73,388 | 64,048 |  |  |  |
Comprehensive income |  | $ 36,306 | $ 40,294 | $ 73,048 | $ 76,244 |  |  |  |
Basic (in dollars per share) |  | $ 1.15 | $ 1.04 | $ 2.53 | $ 2.13 |  |  |  |
Diluted (in dollars per share) |  | $ 1.10 | $ 1.00 | $ 2.42 | $ 2.04 |  |  |  |
Deferred income taxes |  |  |  | $ 74 | $ (3,152) |  |  |  |
Changes in operating assets and liabilities |  |  |  |  | (34,041) |  |  |  |
Previously Reported |  |  |  |  |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |  |  |  |
Accounts receivable, net |  |  |  |  |  |  | 208,865 |  |
Deferred income taxes |  |  |  |  |  |  | 20,117 |  |
Other assets |  |  |  |  |  |  | 12,431 |  |
Other accrued liabilities |  |  |  |  |  |  | 30,457 |  |
Deferred revenue |  |  |  |  |  |  | 52,215 |  |
Stockholders’ equity |  |  |  |  |  |  | 263,737 |  |
Revenues |  |  | $ 257,858 |  | 493,179 |  |  |  |
Cost of revenues |  |  | 78,519 |  | 152,878 |  |  |  |
Selling, general and administrative |  |  | 97,057 |  | 187,353 |  |  |  |
Provision for income taxes |  |  | 8,527 |  | 15,185 |  |  |  |
Net income |  |  | 32,275 |  | 59,574 |  |  |  |
Comprehensive income |  |  | $ 41,400 |  | $ 71,770 |  |  |  |
Basic (in dollars per share) |  |  | $ 1.08 |  | $ 1.98 |  |  |  |
Diluted (in dollars per share) |  |  | $ 1.03 |  | $ 1.90 |  |  |  |
Deferred income taxes |  |  |  |  | $ 6,041 |  |  |  |
Changes in operating assets and liabilities |  |  |  |  | (38,760) |  |  |  |
Accounting Standards Update 2014-09 | Restatement Adjustment |  |  |  |  |  |  |  |  |
Error Corrections and Prior Period Adjustments Restatement [Line Items] |  |  |  |  |  |  |  |  |
Accounts receivable, net |  |  |  |  |  |  | 57,877 |  |
Deferred income taxes |  |  |  |  |  |  | (6,312) |  |
Other assets |  |  |  |  |  |  | 23,823 |  |
Other accrued liabilities |  |  |  |  |  |  | 568 |  |
Deferred revenue |  |  |  |  |  |  | 51,120 |  |
Stockholders’ equity |  |  |  |  |  |  | $ 23,700 |  |
Revenues |  |  | $ (1,598) |  | (4,558) |  |  |  |
Cost of revenues |  |  | 974 |  | 1,047 |  |  |  |
Selling, general and administrative |  |  | (932) |  | (886) |  |  |  |
Provision for income taxes |  |  | (534) |  | (9,193) |  |  |  |
Net income |  |  | (1,106) |  | 4,474 |  |  |  |
Comprehensive income |  |  | $ (1,106) |  | $ 4,474 |  |  |  |
Basic (in dollars per share) |  |  | $ (0.04) |  | $ 0.15 |  |  |  |
Diluted (in dollars per share) |  |  | $ (0.03) |  | $ 0.14 |  |  |  |
Deferred income taxes |  |  |  |  | $ (9,193) |  |  |  |
Changes in operating assets and liabilities |  |  |  |  | $ 4,719 |  |  |  |
[1] | Cost of revenues and selling, general and administrative expenses exclude the amortization of intangible assets. See Note 4.

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