The cash outflow to reacquire common stock during the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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Number of shares that have been repurchased during the period and are being held in treasury.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
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-Paragraph 1
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Note 13. Stockholders' Equity (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Aug. 31, 2016
Payments for repurchases of common stock		$ 3,522	$ 1,820	$ 3,972
Subsequent Event Type, Share Repurchases Member \| Private Placement Member
Treasury Stock, Shares, Acquired	703,000
Payments for repurchases of common stock	$ 13,975
IhcShareRepurchaseProgramMember
Stock Repurchase Program, Number of Shares Authorized to be Repurchased					3,000,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased		2,895,442