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Organization, Basis of Presentation, and Summary of Significant Accounting Policies Tender Offer (Details) - USD ($) |  |  |  |  |  | 5 Months Ended | 7 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
May. 27, 2015 | Apr. 15, 2015 | Apr. 09, 2015 | Jul. 15, 2014 | Feb. 04, 2014 | Jun. 30, 2014 | Feb. 05, 2014 | Jun. 30, 2015 | Mar. 13, 2015 | Nov. 01, 2013
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Common stock, par value (per share) |  |  |  |  |  |  |  | $ 0.01 |  |
Debt issuance costs, net |  |  |  |  |  | $ 0 |  | $ 1,158,000 |  |
Issuance of common stock |  |  |  |  |  | $ 99,512,000 | $ 47,766,000 | 133,362,000 |  |
Proceeds from Issuance of Common Stock |  |  |  |  |  |  |  | $ 10.00 |  |
Common Stock [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  |  |  |  |  |  | $ 70,000,000 |
stock repurchase per share |  | $ 21.00 |  |  |  |  |  |  |  |
Stock Repurchased During Period, Shares |  | 3,333,333 |  |  |  |  |  |  |  |
Issuance of common stock (shares) |  |  |  | 5,520,000 |  |  |  |  |  |
Conversion of previous classes of units into LLC units as part of the Recapitalization (units) |  |  | 2,602,923 |  |  |  |  |  |  |
Issuance of common stock |  |  |  | $ 18.50 |  |  |  |  |  |
Unsolicited Tender Offer Costs |  | $ 1,523,000 |  |  |  |  |  |  |  |
Class A Common Stock [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Common stock, par value (per share) |  |  |  |  |  | $ 0.01 |  | $ 0.01 |  | $ 0.01
Issuance of common stock (shares) | 3,996,255 |  |  |  | 8,214,285 |  |  |  |  |
Conversion of previous classes of units into LLC units as part of the Recapitalization (units) | 2,967,267 |  |  |  |  |  |  |  |  |
Issuance of common stock | $ 19.05 |  |  |  |  |  |  |  |  |
Underwriting discounts and commissions |  |  |  | 5,106,000 |  |  |  |  |  |
Minimum [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
stock repurchase per share |  |  |  |  |  |  |  |  | $ 21.00 |
Maximum [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
stock repurchase per share |  |  |  |  |  |  |  |  | $ 23.50 |
Stock Sold by Selling Stockholders [Member] | Class A Common Stock [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Common Stock |  |  |  | $ 20,178,000 |  |  |  |  |  |
Follow-On Offering [Member] | Common Stock [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Issuance of common stock (shares) |  |  |  | 5,520,000 |  |  |  |  |  |
Follow-On Offering [Member] | Class A Common Stock [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Issuance of common stock (shares) |  |  |  | 1,148,107 |  |  |  |  |  |
Proceeds from Issuance of Common Stock |  |  |  | $ 76,836,000 |  |  |  |  |  |
Underwriting discounts and commissions |  |  |  | 5,106,000 |  |  |  |  |  |
Stock Sold by Company [Member] | Class A Common Stock [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Common Stock |  |  |  | $ 76,836,000 |  |  |  |  |  |
Over-Allotment Option [Member] | Class A Common Stock [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Issuance of common stock (shares) | 521,250 |  |  |  |  |  |  |  |  |
Stock Sold by Selling Stockholders [Member] | Follow-On Offering [Member] | Class A Common Stock [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Issuance of common stock (shares) |  |  |  | 1,148,107 |  |  |  |  |  |
Proceeds from Issuance of Common Stock |  |  |  | $ 20,178,000 |  |  |  |  |  |
Stock Sold by Selling Stockholders [Member] | Over-Allotment Option [Member] | Class A Common Stock [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Issuance of common stock (shares) |  |  |  | 181,748 | 172,175 |  |  |  |  |
Stock Sold by Company [Member] | Class A Common Stock [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Issuance of common stock (shares) |  |  |  | 4,371,893 |  |  |  |  |  |
Stock Sold by Company [Member] | Follow-On Offering [Member] | Class A Common Stock [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Issuance of common stock (shares) |  |  |  | 4,371,893 |  |  |  |  |  |
Proceeds from Issuance of Common Stock |  |  |  | $ 102,120,000 |  |  |  |  |  |
Stock Sold by Company [Member] | Over-Allotment Option [Member] | Class A Common Stock [Member] |  |  |  |  |  |  |  |  |  |
Class of Stock [Line Items] |  |  |  |  |  |  |  |  |  |
Issuance of common stock (shares) |  |  |  | 538,252 | 899,252 |  |  |  |  |

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