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Significant Accounting Policies (Details Textual) - USD ($) |  |  |  | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
May 01, 2024 | May 03, 2016 | Oct. 23, 2014 | Jun. 30, 2018 | Mar. 31, 2018 | Jun. 30, 2017 | Jun. 30, 2018 | Jun. 30, 2017 | Dec. 31, 2017
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |
Option to purchase noncontrolling interest impairment charge |  |  |  |  | $ 0 |  |  |  |
Net cash provided by (used in) operating activities |  |  |  |  |  |  | $ (61,713,000) | $ (726,000) |
Payment for contingent consideration |  |  |  |  |  |  |  | 65,121,000 |
Impairment of long-lived asset |  |  |  | $ 0 |  | $ 0 | 2,317,000 | 0 |
Goodwill |  |  |  | 857,140,000 |  |  | 857,140,000 |  | $ 835,935,000
Acquisition related costs |  |  |  | 335,000 |  | 242,000 | 711,000 | 476,000 |
Assets |  |  |  | 1,788,597,000 |  |  | 1,788,597,000 |  | 1,698,892,000
Liabilities |  |  |  | 1,886,203,000 |  |  | 1,886,203,000 |  | 1,791,519,000
Adjustment to deferred acquisition consideration included in interest expense |  |  |  | 14,000 |  | 25,000 | 26,000 | 54,000 |
Provisional tax expense |  |  |  |  |  |  |  |  | $ (26,674,000)
Wells Fargo Capital Finance, LLC |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, maturity date |  | May 03, 2021 | Sep. 30, 2019 |  |  |  |  |  |
Maximum borrowing capacity |  |  | $ 325,000,000 |  |  |  |  |  |
Contingent Payment |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |
Change in contingent purchase price obligation |  |  |  | $ (5,065,000) |  | $ 4,306,000 | $ (2,480,000) | 15,737,000 |
6.50% Notes due 2024 |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |
Interest rate, stated percentage |  |  |  |  | 6.50% |  |  |  |
Forecast | 6.50% Notes due 2024 | Wells Fargo Capital Finance, LLC |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |
Debt instrument, maturity date | May 01, 2024 |  |  |  |  |  |  |  |
Preferred Stock | Series 4 Convertible Preferred Stock |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |
Shares outstanding (shares) |  |  |  | 95,000 |  |  | 95,000 |  | 95,000
Accounting Standards Update 2016-15 |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |
Net cash provided by (used in) operating activities |  |  |  |  |  |  |  | $ (24,459,000) |
Canada |  |  |  |  |  |  |  |  |
Significant Accounting Policies [Line Items] |  |  |  |  |  |  |  |  |
Effective tax rate (percent) |  |  |  |  |  |  | 24.70% |  |

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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(12)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(11)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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