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Summary of Unaudited Pro Forma Combined Financial Information (Details) - American Acquisition [Member] $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018 USD ($) $ / shares shares
Business Acquisition [Line Items]
Pro forma combined revenues | $	$ 238,232
Pro forma combined net income | $	$ 5,155
Weighted-average common shares outstanding:
Basic | shares	28,060
Diluted | shares	2,379
Pro forma combined net income per share:
Basic | $ / shares	$ 0.18
Diluted | $ / shares	$ 0.17

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Business acquisitions pro forma weighted average common shares outstanding.

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The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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