The wife of an American pastor who was imprisoned for nearly four years in Iran filed court documents to legally separate from him the same day he returned home to Idaho.

Saeed Abedini was one of four Americans released in Iran under a negotiated prisoner exchange on Jan. 16. The U.S. agreed to free seven Iranians as part of the exchange.

Abedini returned to Boise on Tuesday. Court documents indicate his wife, Naghmeh Panahi, filed a petition for separation the same day.

Further details on the filing have been sealed and were unavailable.

Naghmeh Abedini was a tireless advocate for her husband's release until November, when she told supporters that he had been an abusive husband and that she planned to step out of the public eye for prayer, fasting and more time with her children.