Condensed Consolidated Statement Of Stockholders' Equity (Parenthetical)	3 Months Ended
	Mar. 31, 2017 $ / shares shares
Statement of Stockholders' Equity [Abstract]
Issuance of common stock (in shares)	155,641
Issuance of deferred stock units (in shares)	63,677
Special cash dividend (in usd per share) | $ / shares	$ 0.5