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Basis of Presentation - Revenue Recognition (Details) - USD ($) $ in Thousands | 3 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2018 | Sep. 30, 2017 | Jul. 01, 2018 | Jun. 30, 2018
Revenue Recognition |  |  |  |
Revenues | $ 266,249 | $ 257,133 |  |
Costs of goods sold | 170,336 | 165,862 |  |
Operating expenses | 79,656 | 71,877 |  |
Operating income | 16,257 | 19,394 |  |
Interest and other expense, net | (5,332) | (4,249) |  |
Provision for income taxes | (1,523) | (4,988) |  |
Net income | 9,402 | $ 10,157 |  |
Assets |  |  |  |
Accounts receivable, net | 222,170 |  |  | $ 210,744
Inventories | 343,974 |  |  | 313,552
Other assets | 761,784 |  |  |
Liabilities |  |  |  |
Current liabilities | 510,997 |  |  | 443,322
Other liabilities | 329,629 |  |  |
Stockholders' Equity |  |  |  |
Retained earnings | 344,147 |  |  | 334,745
Contract Assets |  |  |  |
Unbilled revenue | 16,158 |  |  | 13,087
Contract Liabilities |  |  |  |
Advances from customers | 74,148 |  |  | 55,761
Deferred revenue - current | 30,352 |  |  | 28,899
Deferred revenue - long-term | 8,011 |  |  | 9,562
Revenue, Performance Obligation [Abstract] |  |  |  |
Revenue remaining performance obligation | 191,200 |  |  |
Revenue, Practical Expedient, Financing Component [true false] |  | true |  |
Recently Adopted Accounting Pronouncements |  |  |  |
Prepaid expenses and other assets | $ 49,468 |  |  | $ 41,587
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2018-10-01 |  |  |  |
Revenue, Performance Obligation [Abstract] |  |  |  |
Remaining performance obligation expected timing of satisfaction period | 12 months |  |  |
Remaining performance obligation expected percentage recognized | 47.00% |  |  |
ASU 2014-09 | Balances without Adoption of ASC 606 |  |  |  |
Revenue Recognition |  |  |  |
Revenues | $ 262,893 |  |  |
Costs of goods sold | 169,157 |  |  |
Operating expenses | 77,654 |  |  |
Operating income | 16,082 |  |  |
Interest and other expense, net | (5,332) |  |  |
Provision for income taxes | (1,474) |  |  |
Net income | 9,276 |  |  |
Assets |  |  |  |
Accounts receivable, net | 220,886 |  |  |
Inventories | 345,170 |  |  |
Other assets | 761,784 |  |  |
Liabilities |  |  |  |
Current liabilities | 511,034 |  |  |
Other liabilities | 329,629 |  |  |
ASU 2014-09 | Effect of Change |  |  |  |
Revenue Recognition |  |  |  |
Revenues | 3,356 |  |  |
Costs of goods sold | 1,179 |  |  |
Operating expenses | 2,002 |  |  |
Operating income | 175 |  |  |
Provision for income taxes | 49 |  |  |
Net income | 126 |  |  |
Assets |  |  |  |
Accounts receivable, net | 1,284 |  |  |
Inventories | (1,196) |  |  |
Liabilities |  |  |  |
Current liabilities | (37) |  |  |
Contract Assets |  |  |  |
Unbilled revenue | $ 3,071 |  |  |
Percentage of change in unbilled revenue | 23.00% |  |  |
Contract Liabilities |  |  |  |
Advances from customers | $ 18,387 |  |  |
Deferred revenue - current | 1,453 |  |  |
Deferred revenue - long-term | $ (1,551) |  |  |
Percentage of of change in customer deposits and prepayments |  | 33.00% |  |
Percentage of change deferred revenue current |  | 5.00% |  |
Percentage of change deferred revenue noncurrent |  | (16.00%) |  |
ASU 2016-16 |  |  |  |
Recently Adopted Accounting Pronouncements |  |  |  |
Prepaid expenses and other assets |  |  | $ (3,000) |
Deferred tax asset |  |  | $ 3,000 |

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