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Segment and Geographic Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Mar. 31, 2018 | Mar. 31, 2017 | Jun. 30, 2017
Segment financial information |  |  |  |  |
Net sales | $ 827,665 | $ 679,304 | $ 2,175,553 | $ 1,912,275 |
Operating income for reportable segments | 56,444 | 45,668 | 154,996 | 126,943 |
Assets used in business | 2,272,323 | 1,346,691 | 2,272,323 | 1,346,691 | $ 1,387,595
Depreciation and amortization of property | 4,713 | 3,877 | 12,721 | 11,364 |
Capital expenditures | 6,439 | 5,077 | 17,898 | 11,787 |
Operating Segments [Member] |  |  |  |  |
Segment financial information |  |  |  |  |
Operating income for reportable segments | 74,813 | 48,310 | 165,655 | 117,571 |
Service Center Based Distribution [Member] |  |  |  |  |
Segment financial information |  |  |  |  |
Net sales | 601,214 | 573,797 | 1,725,734 | 1,617,361 |
Operating income for reportable segments | 48,229 | 36,042 | 111,957 | 85,125 |
Assets used in business | 1,202,593 | 1,184,150 | 1,202,593 | 1,184,150 |
Depreciation and amortization of property | 3,885 | 3,650 | 11,356 | 10,674 |
Capital expenditures | 4,385 | 3,228 | 14,754 | 9,496 |
Fluid Power & Flow Control Segment [Member] |  |  |  |  |
Segment financial information |  |  |  |  |
Net sales | 226,451 | 105,507 | 449,819 | 294,914 |
Operating income for reportable segments | 26,584 | 12,268 | 53,698 | 32,446 |
Assets used in business | 1,069,730 | 162,541 | 1,069,730 | 162,541 |
Depreciation and amortization of property | 828 | 227 | 1,365 | 690 |
Capital expenditures | $ 2,054 | $ 1,849 | $ 3,144 | $ 2,291 |

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