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Self Administration Transaction - Proforma Operating Information (Details) - GRECO $ / shares in Units, $ in Thousands | 6 Months Ended
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Jun. 30, 2018 USD ($) $ / shares
Business Acquisition [Line Items] |
Revenue | $ 166,390
Net income | 32,989
Net income attributable to noncontrolling interests | 5,001
Net income attributable to common stockholders | $ 27,812
Net income to common stockholders per share, basic and diluted (in usd per share) | $ / shares | $ 0.16

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