Goodwill	3 Months Ended
Mar. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill	Goodwill Goodwill was $1.13 billion for the periods ended March 31, 2017 and December 31, 2016, respectively. Goodwill recorded is primarily attributable to the synergies and economies of scale expected from combining the operations of the Corporation and acquired organizations. The Corporation recorded goodwill in the amount of $846.7 million related to the merger with Talmer completed on August 31, 2016. Goodwill is not amortized but is evaluated at least annually for impairment. The Corporation’s most recent annual goodwill impairment review performed as of October 31, 2016 did not indicate that an impairment of goodwill existed. The Corporation also determined that no triggering events have occurred that indicated impairment from the most recent valuation date through March 31, 2017 and that the Corporation's goodwill was not impaired at March 31, 2017.

Goodwill

Goodwill was $1.13 billion for the periods ended March 31, 2017 and December 31, 2016, respectively. Goodwill recorded is primarily attributable to the synergies and economies of scale expected from combining the operations of the Corporation and acquired organizations. The Corporation recorded goodwill in the amount of $846.7 million related to the merger with Talmer completed on August 31, 2016.

Goodwill is not amortized but is evaluated at least annually for impairment. The Corporation’s most recent annual goodwill impairment review performed as of October 31, 2016 did not indicate that an impairment of goodwill existed. The Corporation also determined that no triggering events have occurred that indicated impairment from the most recent valuation date through March 31, 2017 and that the Corporation's goodwill was not impaired at March 31, 2017.